#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.59 for MegaPOV 1.2.
#
# Report bugs to <chris_hormann@gmx.de>.
#
# Copyright (C) 2003 Free Software Foundation, Inc.
# This configure script is free software; the Free Software Foundation
# gives unlimited permission to copy, distribute and modify it.
## --------------------- ##
## M4sh Initialization.  ##
## --------------------- ##

# Be Bourne compatible
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
  emulate sh
  NULLCMD=:
  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
  set -o posix
fi
DUALCASE=1; export DUALCASE # for MKS sh

# Support unset when possible.
if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
  as_unset=unset
else
  as_unset=false
fi


# Work around bugs in pre-3.0 UWIN ksh.
$as_unset ENV MAIL MAILPATH
PS1='$ '
PS2='> '
PS4='+ '

# NLS nuisances.
for as_var in \
  LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
  LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
  LC_TELEPHONE LC_TIME
do
  if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
    eval $as_var=C; export $as_var
  else
    $as_unset $as_var
  fi
done

# Required to use basename.
if expr a : '\(a\)' >/dev/null 2>&1; then
  as_expr=expr
else
  as_expr=false
fi

if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi


# Name of the executable.
as_me=`$as_basename "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)$' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
  	  /^X\/\(\/\/\)$/{ s//\1/; q; }
  	  /^X\/\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`


# PATH needs CR, and LINENO needs CR and PATH.
# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits

# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
  echo "#! /bin/sh" >conf$$.sh
  echo  "exit 0"   >>conf$$.sh
  chmod +x conf$$.sh
  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
    PATH_SEPARATOR=';'
  else
    PATH_SEPARATOR=:
  fi
  rm -f conf$$.sh
fi


  as_lineno_1=$LINENO
  as_lineno_2=$LINENO
  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
  test "x$as_lineno_1" != "x$as_lineno_2" &&
  test "x$as_lineno_3"  = "x$as_lineno_2"  || {
  # Find who we are.  Look in the path if we contain no path at all
  # relative or not.
  case $0 in
    *[\\/]* ) as_myself=$0 ;;
    *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
done

       ;;
  esac
  # We did not find ourselves, most probably we were run as `sh COMMAND'
  # in which case we are not to be found in the path.
  if test "x$as_myself" = x; then
    as_myself=$0
  fi
  if test ! -f "$as_myself"; then
    { echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2
   { (exit 1); exit 1; }; }
  fi
  case $CONFIG_SHELL in
  '')
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for as_base in sh bash ksh sh5; do
	 case $as_dir in
	 /*)
	   if ("$as_dir/$as_base" -c '
  as_lineno_1=$LINENO
  as_lineno_2=$LINENO
  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
  test "x$as_lineno_1" != "x$as_lineno_2" &&
  test "x$as_lineno_3"  = "x$as_lineno_2" ') 2>/dev/null; then
	     $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
	     $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
	     CONFIG_SHELL=$as_dir/$as_base
	     export CONFIG_SHELL
	     exec "$CONFIG_SHELL" "$0" ${1+"$@"}
	   fi;;
	 esac
       done
done
;;
  esac

  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
  # uniformly replaced by the line number.  The first 'sed' inserts a
  # line-number line before each line; the second 'sed' does the real
  # work.  The second script uses 'N' to pair each line-number line
  # with the numbered line, and appends trailing '-' during
  # substitution so that $LINENO is not a special case at line end.
  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
  # second 'sed' script.  Blame Lee E. McMahon for sed's syntax.  :-)
  sed '=' <$as_myself |
    sed '
      N
      s,$,-,
      : loop
      s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
      t loop
      s,-$,,
      s,^['$as_cr_digits']*\n,,
    ' >$as_me.lineno &&
  chmod +x $as_me.lineno ||
    { echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
   { (exit 1); exit 1; }; }

  # Don't try to exec as it changes $[0], causing all sort of problems
  # (the dirname of $[0] is not the place where we might find the
  # original and so on.  Autoconf is especially sensible to this).
  . ./$as_me.lineno
  # Exit status is that of the last command.
  exit
}


case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
  *c*,-n*) ECHO_N= ECHO_C='
' ECHO_T='	' ;;
  *c*,*  ) ECHO_N=-n ECHO_C= ECHO_T= ;;
  *)       ECHO_N= ECHO_C='\c' ECHO_T= ;;
esac

if expr a : '\(a\)' >/dev/null 2>&1; then
  as_expr=expr
else
  as_expr=false
fi

rm -f conf$$ conf$$.exe conf$$.file
echo >conf$$.file
if ln -s conf$$.file conf$$ 2>/dev/null; then
  # We could just check for DJGPP; but this test a) works b) is more generic
  # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
  if test -f conf$$.exe; then
    # Don't use ln at all; we don't have any links
    as_ln_s='cp -p'
  else
    as_ln_s='ln -s'
  fi
elif ln conf$$.file conf$$ 2>/dev/null; then
  as_ln_s=ln
else
  as_ln_s='cp -p'
fi
rm -f conf$$ conf$$.exe conf$$.file

if mkdir -p . 2>/dev/null; then
  as_mkdir_p=:
else
  test -d ./-p && rmdir ./-p
  as_mkdir_p=false
fi

as_executable_p="test -f"

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"


# IFS
# We need space, tab and new line, in precisely that order.
as_nl='
'
IFS=" 	$as_nl"

# CDPATH.
$as_unset CDPATH


# Name of the host.
# hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
# so uname gets run too.
ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`

exec 6>&1

#
# Initializations.
#
ac_default_prefix=/usr/local
ac_config_libobj_dir=.
cross_compiling=no
subdirs=
MFLAGS=
MAKEFLAGS=
SHELL=${CONFIG_SHELL-/bin/sh}

# Maximum number of lines to put in a shell here document.
# This variable seems obsolete.  It should probably be removed, and
# only ac_max_sed_lines should be used.
: ${ac_max_here_lines=38}

# Identity of this package.
PACKAGE_NAME='MegaPOV'
PACKAGE_TARNAME='megapov'
PACKAGE_VERSION='1.2'
PACKAGE_STRING='MegaPOV 1.2'
PACKAGE_BUGREPORT='chris_hormann@gmx.de'

ac_unique_file="unix/unix.cpp"
# Factoring default headers for most tests.
ac_includes_default="\
#include <stdio.h>
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#if STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# if HAVE_STDLIB_H
#  include <stdlib.h>
# endif
#endif
#if HAVE_STRING_H
# if !STDC_HEADERS && HAVE_MEMORY_H
#  include <memory.h>
# endif
# include <string.h>
#endif
#if HAVE_STRINGS_H
# include <strings.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#else
# if HAVE_STDINT_H
#  include <stdint.h>
# endif
#endif
#if HAVE_UNISTD_H
# include <unistd.h>
#endif"

ac_subdirs_all="$ac_subdirs_all libraries/zlib"
ac_subdirs_all="$ac_subdirs_all libraries/png"
ac_subdirs_all="$ac_subdirs_all libraries/jpeg"
ac_subdirs_all="$ac_subdirs_all libraries/tiff/libtiff"
ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS VERSION_BASE COMPILED_BY C99_COMPATIBLE_RADIOSITY build build_cpu build_vendor build_os host host_cpu host_vendor host_os INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot AMTAR am__tar am__untar MAINTAINER_MODE_TRUE MAINTAINER_MODE_FALSE MAINT C_INCLUDE_PATH CPLUS_INCLUDE_PATH CXX CXXFLAGS LDFLAGS CPPFLAGS ac_ct_CXX EXEEXT OBJEXT DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CXXDEPMODE am__fastdepCXX_TRUE am__fastdepCXX_FALSE EGREP CXXCPP CC CFLAGS ac_ct_CC CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE CPP RANLIB ac_ct_RANLIB LIBOBJS X_CFLAGS X_PRE_LIBS X_LIBS X_EXTRA_LIBS subdirs INCZ LIBZ INCPNG LIBPNG INCJPEG LIBJPEG INCTIFF LIBTIFF POVLIBS LTLIBOBJS'
ac_subst_files=''

# Initialize some variables set by options.
ac_init_help=
ac_init_version=false
# The variables have the same names as the options, with
# dashes changed to underlines.
cache_file=/dev/null
exec_prefix=NONE
no_create=
no_recursion=
prefix=NONE
program_prefix=NONE
program_suffix=NONE
program_transform_name=s,x,x,
silent=
site=
srcdir=
verbose=
x_includes=NONE
x_libraries=NONE

# Installation directory options.
# These are left unexpanded so users can "make install exec_prefix=/foo"
# and all the variables that are supposed to be based on exec_prefix
# by default will actually change.
# Use braces instead of parens because sh, perl, etc. also accept them.
bindir='${exec_prefix}/bin'
sbindir='${exec_prefix}/sbin'
libexecdir='${exec_prefix}/libexec'
datadir='${prefix}/share'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
libdir='${exec_prefix}/lib'
includedir='${prefix}/include'
oldincludedir='/usr/include'
infodir='${prefix}/info'
mandir='${prefix}/man'

ac_prev=
for ac_option
do
  # If the previous option needs an argument, assign it.
  if test -n "$ac_prev"; then
    eval "$ac_prev=\$ac_option"
    ac_prev=
    continue
  fi

  ac_optarg=`expr "x$ac_option" : 'x[^=]*=\(.*\)'`

  # Accept the important Cygnus configure options, so we can diagnose typos.

  case $ac_option in

  -bindir | --bindir | --bindi | --bind | --bin | --bi)
    ac_prev=bindir ;;
  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
    bindir=$ac_optarg ;;

  -build | --build | --buil | --bui | --bu)
    ac_prev=build_alias ;;
  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
    build_alias=$ac_optarg ;;

  -cache-file | --cache-file | --cache-fil | --cache-fi \
  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
    ac_prev=cache_file ;;
  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
    cache_file=$ac_optarg ;;

  --config-cache | -C)
    cache_file=config.cache ;;

  -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
    ac_prev=datadir ;;
  -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
  | --da=*)
    datadir=$ac_optarg ;;

  -disable-* | --disable-*)
    ac_feature=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_feature" : ".*[^-_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid feature name: $ac_feature" >&2
   { (exit 1); exit 1; }; }
    ac_feature=`echo $ac_feature | sed 's/-/_/g'`
    eval "enable_$ac_feature=no" ;;

  -enable-* | --enable-*)
    ac_feature=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_feature" : ".*[^-_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid feature name: $ac_feature" >&2
   { (exit 1); exit 1; }; }
    ac_feature=`echo $ac_feature | sed 's/-/_/g'`
    case $ac_option in
      *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
      *) ac_optarg=yes ;;
    esac
    eval "enable_$ac_feature='$ac_optarg'" ;;

  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
  | --exec | --exe | --ex)
    ac_prev=exec_prefix ;;
  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
  | --exec=* | --exe=* | --ex=*)
    exec_prefix=$ac_optarg ;;

  -gas | --gas | --ga | --g)
    # Obsolete; use --with-gas.
    with_gas=yes ;;

  -help | --help | --hel | --he | -h)
    ac_init_help=long ;;
  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
    ac_init_help=recursive ;;
  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
    ac_init_help=short ;;

  -host | --host | --hos | --ho)
    ac_prev=host_alias ;;
  -host=* | --host=* | --hos=* | --ho=*)
    host_alias=$ac_optarg ;;

  -includedir | --includedir | --includedi | --included | --include \
  | --includ | --inclu | --incl | --inc)
    ac_prev=includedir ;;
  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
  | --includ=* | --inclu=* | --incl=* | --inc=*)
    includedir=$ac_optarg ;;

  -infodir | --infodir | --infodi | --infod | --info | --inf)
    ac_prev=infodir ;;
  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
    infodir=$ac_optarg ;;

  -libdir | --libdir | --libdi | --libd)
    ac_prev=libdir ;;
  -libdir=* | --libdir=* | --libdi=* | --libd=*)
    libdir=$ac_optarg ;;

  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
  | --libexe | --libex | --libe)
    ac_prev=libexecdir ;;
  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
  | --libexe=* | --libex=* | --libe=*)
    libexecdir=$ac_optarg ;;

  -localstatedir | --localstatedir | --localstatedi | --localstated \
  | --localstate | --localstat | --localsta | --localst \
  | --locals | --local | --loca | --loc | --lo)
    ac_prev=localstatedir ;;
  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
  | --localstate=* | --localstat=* | --localsta=* | --localst=* \
  | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
    localstatedir=$ac_optarg ;;

  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
    ac_prev=mandir ;;
  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
    mandir=$ac_optarg ;;

  -nfp | --nfp | --nf)
    # Obsolete; use --without-fp.
    with_fp=no ;;

  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
  | --no-cr | --no-c | -n)
    no_create=yes ;;

  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
    no_recursion=yes ;;

  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
  | --oldin | --oldi | --old | --ol | --o)
    ac_prev=oldincludedir ;;
  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
    oldincludedir=$ac_optarg ;;

  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
    ac_prev=prefix ;;
  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
    prefix=$ac_optarg ;;

  -program-prefix | --program-prefix | --program-prefi | --program-pref \
  | --program-pre | --program-pr | --program-p)
    ac_prev=program_prefix ;;
  -program-prefix=* | --program-prefix=* | --program-prefi=* \
  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
    program_prefix=$ac_optarg ;;

  -program-suffix | --program-suffix | --program-suffi | --program-suff \
  | --program-suf | --program-su | --program-s)
    ac_prev=program_suffix ;;
  -program-suffix=* | --program-suffix=* | --program-suffi=* \
  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
    program_suffix=$ac_optarg ;;

  -program-transform-name | --program-transform-name \
  | --program-transform-nam | --program-transform-na \
  | --program-transform-n | --program-transform- \
  | --program-transform | --program-transfor \
  | --program-transfo | --program-transf \
  | --program-trans | --program-tran \
  | --progr-tra | --program-tr | --program-t)
    ac_prev=program_transform_name ;;
  -program-transform-name=* | --program-transform-name=* \
  | --program-transform-nam=* | --program-transform-na=* \
  | --program-transform-n=* | --program-transform-=* \
  | --program-transform=* | --program-transfor=* \
  | --program-transfo=* | --program-transf=* \
  | --program-trans=* | --program-tran=* \
  | --progr-tra=* | --program-tr=* | --program-t=*)
    program_transform_name=$ac_optarg ;;

  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil)
    silent=yes ;;

  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
    ac_prev=sbindir ;;
  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
  | --sbi=* | --sb=*)
    sbindir=$ac_optarg ;;

  -sharedstatedir | --sharedstatedir | --sharedstatedi \
  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
  | --sharedst | --shareds | --shared | --share | --shar \
  | --sha | --sh)
    ac_prev=sharedstatedir ;;
  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
  | --sha=* | --sh=*)
    sharedstatedir=$ac_optarg ;;

  -site | --site | --sit)
    ac_prev=site ;;
  -site=* | --site=* | --sit=*)
    site=$ac_optarg ;;

  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
    ac_prev=srcdir ;;
  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
    srcdir=$ac_optarg ;;

  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
  | --syscon | --sysco | --sysc | --sys | --sy)
    ac_prev=sysconfdir ;;
  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
    sysconfdir=$ac_optarg ;;

  -target | --target | --targe | --targ | --tar | --ta | --t)
    ac_prev=target_alias ;;
  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
    target_alias=$ac_optarg ;;

  -v | -verbose | --verbose | --verbos | --verbo | --verb)
    verbose=yes ;;

  -version | --version | --versio | --versi | --vers | -V)
    ac_init_version=: ;;

  -with-* | --with-*)
    ac_package=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_package" : ".*[^-_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid package name: $ac_package" >&2
   { (exit 1); exit 1; }; }
    ac_package=`echo $ac_package| sed 's/-/_/g'`
    case $ac_option in
      *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
      *) ac_optarg=yes ;;
    esac
    eval "with_$ac_package='$ac_optarg'" ;;

  -without-* | --without-*)
    ac_package=`expr "x$ac_option" : 'x-*without-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_package" : ".*[^-_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid package name: $ac_package" >&2
   { (exit 1); exit 1; }; }
    ac_package=`echo $ac_package | sed 's/-/_/g'`
    eval "with_$ac_package=no" ;;

  --x)
    # Obsolete; use --with-x.
    with_x=yes ;;

  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
  | --x-incl | --x-inc | --x-in | --x-i)
    ac_prev=x_includes ;;
  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
    x_includes=$ac_optarg ;;

  -x-libraries | --x-libraries | --x-librarie | --x-librari \
  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
    ac_prev=x_libraries ;;
  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
    x_libraries=$ac_optarg ;;

  -*) { echo "$as_me: error: unrecognized option: $ac_option
Try \`$0 --help' for more information." >&2
   { (exit 1); exit 1; }; }
    ;;

  *=*)
    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
    # Reject names that are not valid shell variable names.
    expr "x$ac_envvar" : ".*[^_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid variable name: $ac_envvar" >&2
   { (exit 1); exit 1; }; }
    ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`
    eval "$ac_envvar='$ac_optarg'"
    export $ac_envvar ;;

  *)
    # FIXME: should be removed in autoconf 3.0.
    echo "$as_me: WARNING: you should use --build, --host, --target" >&2
    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
      echo "$as_me: WARNING: invalid host type: $ac_option" >&2
    : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
    ;;

  esac
done

if test -n "$ac_prev"; then
  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
  { echo "$as_me: error: missing argument to $ac_option" >&2
   { (exit 1); exit 1; }; }
fi

# Be sure to have absolute paths.
for ac_var in exec_prefix prefix
do
  eval ac_val=$`echo $ac_var`
  case $ac_val in
    [\\/$]* | ?:[\\/]* | NONE | '' ) ;;
    *)  { echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
   { (exit 1); exit 1; }; };;
  esac
done

# Be sure to have absolute paths.
for ac_var in bindir sbindir libexecdir datadir sysconfdir sharedstatedir \
	      localstatedir libdir includedir oldincludedir infodir mandir
do
  eval ac_val=$`echo $ac_var`
  case $ac_val in
    [\\/$]* | ?:[\\/]* ) ;;
    *)  { echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
   { (exit 1); exit 1; }; };;
  esac
done

# There might be people who depend on the old broken behavior: `$host'
# used to hold the argument of --host etc.
# FIXME: To remove some day.
build=$build_alias
host=$host_alias
target=$target_alias

# FIXME: To remove some day.
if test "x$host_alias" != x; then
  if test "x$build_alias" = x; then
    cross_compiling=maybe
    echo "$as_me: WARNING: If you wanted to set the --build type, don't use --host.
    If a cross compiler is detected then cross compile mode will be used." >&2
  elif test "x$build_alias" != "x$host_alias"; then
    cross_compiling=yes
  fi
fi

ac_tool_prefix=
test -n "$host_alias" && ac_tool_prefix=$host_alias-

test "$silent" = yes && exec 6>/dev/null


# Find the source files, if location was not specified.
if test -z "$srcdir"; then
  ac_srcdir_defaulted=yes
  # Try the directory containing this script, then its parent.
  ac_confdir=`(dirname "$0") 2>/dev/null ||
$as_expr X"$0" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$0" : 'X\(//\)[^/]' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$0" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
  srcdir=$ac_confdir
  if test ! -r $srcdir/$ac_unique_file; then
    srcdir=..
  fi
else
  ac_srcdir_defaulted=no
fi
if test ! -r $srcdir/$ac_unique_file; then
  if test "$ac_srcdir_defaulted" = yes; then
    { echo "$as_me: error: cannot find sources ($ac_unique_file) in $ac_confdir or .." >&2
   { (exit 1); exit 1; }; }
  else
    { echo "$as_me: error: cannot find sources ($ac_unique_file) in $srcdir" >&2
   { (exit 1); exit 1; }; }
  fi
fi
(cd $srcdir && test -r ./$ac_unique_file) 2>/dev/null ||
  { echo "$as_me: error: sources are in $srcdir, but \`cd $srcdir' does not work" >&2
   { (exit 1); exit 1; }; }
srcdir=`echo "$srcdir" | sed 's%\([^\\/]\)[\\/]*$%\1%'`
ac_env_build_alias_set=${build_alias+set}
ac_env_build_alias_value=$build_alias
ac_cv_env_build_alias_set=${build_alias+set}
ac_cv_env_build_alias_value=$build_alias
ac_env_host_alias_set=${host_alias+set}
ac_env_host_alias_value=$host_alias
ac_cv_env_host_alias_set=${host_alias+set}
ac_cv_env_host_alias_value=$host_alias
ac_env_target_alias_set=${target_alias+set}
ac_env_target_alias_value=$target_alias
ac_cv_env_target_alias_set=${target_alias+set}
ac_cv_env_target_alias_value=$target_alias
ac_env_COMPILED_BY_set=${COMPILED_BY+set}
ac_env_COMPILED_BY_value=$COMPILED_BY
ac_cv_env_COMPILED_BY_set=${COMPILED_BY+set}
ac_cv_env_COMPILED_BY_value=$COMPILED_BY
ac_env_C99_COMPATIBLE_RADIOSITY_set=${C99_COMPATIBLE_RADIOSITY+set}
ac_env_C99_COMPATIBLE_RADIOSITY_value=$C99_COMPATIBLE_RADIOSITY
ac_cv_env_C99_COMPATIBLE_RADIOSITY_set=${C99_COMPATIBLE_RADIOSITY+set}
ac_cv_env_C99_COMPATIBLE_RADIOSITY_value=$C99_COMPATIBLE_RADIOSITY
ac_env_CXX_set=${CXX+set}
ac_env_CXX_value=$CXX
ac_cv_env_CXX_set=${CXX+set}
ac_cv_env_CXX_value=$CXX
ac_env_CXXFLAGS_set=${CXXFLAGS+set}
ac_env_CXXFLAGS_value=$CXXFLAGS
ac_cv_env_CXXFLAGS_set=${CXXFLAGS+set}
ac_cv_env_CXXFLAGS_value=$CXXFLAGS
ac_env_LDFLAGS_set=${LDFLAGS+set}
ac_env_LDFLAGS_value=$LDFLAGS
ac_cv_env_LDFLAGS_set=${LDFLAGS+set}
ac_cv_env_LDFLAGS_value=$LDFLAGS
ac_env_CPPFLAGS_set=${CPPFLAGS+set}
ac_env_CPPFLAGS_value=$CPPFLAGS
ac_cv_env_CPPFLAGS_set=${CPPFLAGS+set}
ac_cv_env_CPPFLAGS_value=$CPPFLAGS
ac_env_CXXCPP_set=${CXXCPP+set}
ac_env_CXXCPP_value=$CXXCPP
ac_cv_env_CXXCPP_set=${CXXCPP+set}
ac_cv_env_CXXCPP_value=$CXXCPP
ac_env_CC_set=${CC+set}
ac_env_CC_value=$CC
ac_cv_env_CC_set=${CC+set}
ac_cv_env_CC_value=$CC
ac_env_CFLAGS_set=${CFLAGS+set}
ac_env_CFLAGS_value=$CFLAGS
ac_cv_env_CFLAGS_set=${CFLAGS+set}
ac_cv_env_CFLAGS_value=$CFLAGS
ac_env_CPP_set=${CPP+set}
ac_env_CPP_value=$CPP
ac_cv_env_CPP_set=${CPP+set}
ac_cv_env_CPP_value=$CPP

#
# Report the --help message.
#
if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
\`configure' configures MegaPOV 1.2 to adapt to many kinds of systems.

Usage: $0 [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:
  -h, --help              display this help and exit
      --help=short        display options specific to this package
      --help=recursive    display the short help of all the included packages
  -V, --version           display version information and exit
  -q, --quiet, --silent   do not print \`checking...' messages
      --cache-file=FILE   cache test results in FILE [disabled]
  -C, --config-cache      alias for \`--cache-file=config.cache'
  -n, --no-create         do not create output files
      --srcdir=DIR        find the sources in DIR [configure dir or \`..']

_ACEOF

  cat <<_ACEOF
Installation directories:
  --prefix=PREFIX         install architecture-independent files in PREFIX
			  [$ac_default_prefix]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
			  [PREFIX]

By default, \`make install' will install all the files in
\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
an installation prefix other than \`$ac_default_prefix' using \`--prefix',
for instance \`--prefix=\$HOME'.

For better control, use the options below.

Fine tuning of the installation directories:
  --bindir=DIR           user executables [EPREFIX/bin]
  --sbindir=DIR          system admin executables [EPREFIX/sbin]
  --libexecdir=DIR       program executables [EPREFIX/libexec]
  --datadir=DIR          read-only architecture-independent data [PREFIX/share]
  --sysconfdir=DIR       read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR   modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR    modifiable single-machine data [PREFIX/var]
  --libdir=DIR           object code libraries [EPREFIX/lib]
  --includedir=DIR       C header files [PREFIX/include]
  --oldincludedir=DIR    C header files for non-gcc [/usr/include]
  --infodir=DIR          info documentation [PREFIX/info]
  --mandir=DIR           man documentation [PREFIX/man]
_ACEOF

  cat <<\_ACEOF

Program names:
  --program-prefix=PREFIX            prepend PREFIX to installed program names
  --program-suffix=SUFFIX            append SUFFIX to installed program names
  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names

X features:
  --x-includes=DIR    X include files are in DIR
  --x-libraries=DIR   X library files are in DIR

System types:
  --build=BUILD     configure for building on BUILD [guessed]
  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
_ACEOF
fi

if test -n "$ac_init_help"; then
  case $ac_init_help in
     short | recursive ) echo "Configuration of MegaPOV 1.2:";;
   esac
  cat <<\_ACEOF

Optional Features:
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --enable-watch-cursor   enable a watch cursor over the display while
                          rendering (X Window only)
  --enable-debug          enable compiler debugging mode
  --enable-profile        enable program execution profiling
  --disable-optimiz       disable all compiler optimizations
  --disable-pipe          disable usage of pipes during compilation (use
                          temporary files instead)
  --disable-strip         disable stripping all symbols from the object files
                          (larger binary)
  --disable-shared        disable linking with shared libraries (build static
                          binary)
  --disable-lib-checks    disable checking for supporting image libraries
                          (force compiling)
  --disable-vsnprintf-check
                          disable checking for the C99 vsnprintf() function
                          (systems without this functions will fail compiling
                          the program)
  --disable-io-restrictions
                          disable POV-Ray's mechanism for control of I/O
                          operations
  --enable-maintainer-mode  enable make rules and dependencies not useful
			  (and sometimes confusing) to the casual installer
  --disable-dependency-tracking  speeds up one-time build
  --enable-dependency-tracking   do not reject slow dependency extractors

Optional Packages:
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --without-cygwin-dll    don't link with the Cygwin DLL (MinGW required)
  --with-svga             use the SVGA library (Linux only)
  --with-x                use the X Window System

Some influential environment variables:
  COMPILED_BY customize the "unofficial version" message (required argument)
  C99_COMPATIBLE_RADIOSITY
              adapt radiosity code to non-IEEE 754 floating point, requires
              ISO C99 compiler and library (see source/octree.cpp for details)
  CXX         C++ compiler command
  CXXFLAGS    C++ compiler flags
  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
              nonstandard directory <lib dir>
  CPPFLAGS    C/C++ preprocessor flags, e.g. -I<include dir> if you have
              headers in a nonstandard directory <include dir>
  CXXCPP      C++ preprocessor
  CC          C compiler command
  CFLAGS      C compiler flags
  CPP         C preprocessor

Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.

Report bugs to <chris_hormann@gmx.de>.
_ACEOF
fi

if test "$ac_init_help" = "recursive"; then
  # If there are subdirs, report their specific --help.
  ac_popdir=`pwd`
  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
    test -d $ac_dir || continue
    ac_builddir=.

if test "$ac_dir" != .; then
  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
  # A "../" for each directory in $ac_dir_suffix.
  ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
else
  ac_dir_suffix= ac_top_builddir=
fi

case $srcdir in
  .)  # No --srcdir option.  We are building in place.
    ac_srcdir=.
    if test -z "$ac_top_builddir"; then
       ac_top_srcdir=.
    else
       ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
    fi ;;
  [\\/]* | ?:[\\/]* )  # Absolute path.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir ;;
  *) # Relative path.
    ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_builddir$srcdir ;;
esac

# Do not use `cd foo && pwd` to compute absolute paths, because
# the directories may not exist.
case `pwd` in
.) ac_abs_builddir="$ac_dir";;
*)
  case "$ac_dir" in
  .) ac_abs_builddir=`pwd`;;
  [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
  *) ac_abs_builddir=`pwd`/"$ac_dir";;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_top_builddir=${ac_top_builddir}.;;
*)
  case ${ac_top_builddir}. in
  .) ac_abs_top_builddir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
  *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_srcdir=$ac_srcdir;;
*)
  case $ac_srcdir in
  .) ac_abs_srcdir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
  *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_top_srcdir=$ac_top_srcdir;;
*)
  case $ac_top_srcdir in
  .) ac_abs_top_srcdir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
  *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
  esac;;
esac

    cd "$ac_dir"
    # Check for guested configure; otherwise get Cygnus style configure.
    if test -f $ac_srcdir/configure.gnu; then
      echo
      $SHELL $ac_srcdir/configure.gnu  --help=recursive --srcdir=$ac_srcdir
    elif test -f $ac_srcdir/configure; then
      echo
      $SHELL $ac_srcdir/configure  --help=recursive
    elif test -f $ac_srcdir/configure.ac ||
	   test -f $ac_srcdir/configure.in; then
      echo
      $ac_configure --help
    else
      echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
    fi
    cd "$ac_popdir"
  done
fi

test -n "$ac_init_help" && exit 0
if $ac_init_version; then
  cat <<\_ACEOF
MegaPOV configure 1.2
generated by GNU Autoconf 2.59

Copyright (C) 2003 Free Software Foundation, Inc.
This configure script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it.
_ACEOF
  exit 0
fi
exec 5>config.log
cat >&5 <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by MegaPOV $as_me 1.2, which was
generated by GNU Autoconf 2.59.  Invocation command line was

  $ $0 $@

_ACEOF
{
cat <<_ASUNAME
## --------- ##
## Platform. ##
## --------- ##

hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
uname -m = `(uname -m) 2>/dev/null || echo unknown`
uname -r = `(uname -r) 2>/dev/null || echo unknown`
uname -s = `(uname -s) 2>/dev/null || echo unknown`
uname -v = `(uname -v) 2>/dev/null || echo unknown`

/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`

/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
hostinfo               = `(hostinfo) 2>/dev/null               || echo unknown`
/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`

_ASUNAME

as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  echo "PATH: $as_dir"
done

} >&5

cat >&5 <<_ACEOF


## ----------- ##
## Core tests. ##
## ----------- ##

_ACEOF


# Keep a trace of the command line.
# Strip out --no-create and --no-recursion so they do not pile up.
# Strip out --silent because we don't want to record it for future runs.
# Also quote any args containing shell meta-characters.
# Make two passes to allow for proper duplicate-argument suppression.
ac_configure_args=
ac_configure_args0=
ac_configure_args1=
ac_sep=
ac_must_keep_next=false
for ac_pass in 1 2
do
  for ac_arg
  do
    case $ac_arg in
    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
    | -silent | --silent | --silen | --sile | --sil)
      continue ;;
    *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
      ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
    esac
    case $ac_pass in
    1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;;
    2)
      ac_configure_args1="$ac_configure_args1 '$ac_arg'"
      if test $ac_must_keep_next = true; then
	ac_must_keep_next=false # Got value, back to normal.
      else
	case $ac_arg in
	  *=* | --config-cache | -C | -disable-* | --disable-* \
	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
	  | -with-* | --with-* | -without-* | --without-* | --x)
	    case "$ac_configure_args0 " in
	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
	    esac
	    ;;
	  -* ) ac_must_keep_next=true ;;
	esac
      fi
      ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
      # Get rid of the leading space.
      ac_sep=" "
      ;;
    esac
  done
done
$as_unset ac_configure_args0 || test "${ac_configure_args0+set}" != set || { ac_configure_args0=; export ac_configure_args0; }
$as_unset ac_configure_args1 || test "${ac_configure_args1+set}" != set || { ac_configure_args1=; export ac_configure_args1; }

# When interrupted or exit'd, cleanup temporary files, and complete
# config.log.  We remove comments because anyway the quotes in there
# would cause problems or look ugly.
# WARNING: Be sure not to use single quotes in there, as some shells,
# such as our DU 5.0 friend, will then `close' the trap.
trap 'exit_status=$?
  # Save into config.log some information that might help in debugging.
  {
    echo

    cat <<\_ASBOX
## ---------------- ##
## Cache variables. ##
## ---------------- ##
_ASBOX
    echo
    # The following way of writing the cache mishandles newlines in values,
{
  (set) 2>&1 |
    case `(ac_space='"'"' '"'"'; set | grep ac_space) 2>&1` in
    *ac_space=\ *)
      sed -n \
	"s/'"'"'/'"'"'\\\\'"'"''"'"'/g;
	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='"'"'\\2'"'"'/p"
      ;;
    *)
      sed -n \
	"s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
      ;;
    esac;
}
    echo

    cat <<\_ASBOX
## ----------------- ##
## Output variables. ##
## ----------------- ##
_ASBOX
    echo
    for ac_var in $ac_subst_vars
    do
      eval ac_val=$`echo $ac_var`
      echo "$ac_var='"'"'$ac_val'"'"'"
    done | sort
    echo

    if test -n "$ac_subst_files"; then
      cat <<\_ASBOX
## ------------- ##
## Output files. ##
## ------------- ##
_ASBOX
      echo
      for ac_var in $ac_subst_files
      do
	eval ac_val=$`echo $ac_var`
	echo "$ac_var='"'"'$ac_val'"'"'"
      done | sort
      echo
    fi

    if test -s confdefs.h; then
      cat <<\_ASBOX
## ----------- ##
## confdefs.h. ##
## ----------- ##
_ASBOX
      echo
      sed "/^$/d" confdefs.h | sort
      echo
    fi
    test "$ac_signal" != 0 &&
      echo "$as_me: caught signal $ac_signal"
    echo "$as_me: exit $exit_status"
  } >&5
  rm -f core *.core &&
  rm -rf conftest* confdefs* conf$$* $ac_clean_files &&
    exit $exit_status
     ' 0
for ac_signal in 1 2 13 15; do
  trap 'ac_signal='$ac_signal'; { (exit 1); exit 1; }' $ac_signal
done
ac_signal=0

# confdefs.h avoids OS command line length limits that DEFS can exceed.
rm -rf conftest* confdefs.h
# AIX cpp loses on an empty file, so make sure it contains at least a newline.
echo >confdefs.h

# Predefined preprocessor variables.

cat >>confdefs.h <<_ACEOF
#define PACKAGE_NAME "$PACKAGE_NAME"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define PACKAGE_VERSION "$PACKAGE_VERSION"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define PACKAGE_STRING "$PACKAGE_STRING"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
_ACEOF


# Let the site file select an alternate cache file if it wants to.
# Prefer explicitly selected file to automatically selected ones.
if test -z "$CONFIG_SITE"; then
  if test "x$prefix" != xNONE; then
    CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
  else
    CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
  fi
fi
for ac_site_file in $CONFIG_SITE; do
  if test -r "$ac_site_file"; then
    { echo "$as_me:$LINENO: loading site script $ac_site_file" >&5
echo "$as_me: loading site script $ac_site_file" >&6;}
    sed 's/^/| /' "$ac_site_file" >&5
    . "$ac_site_file"
  fi
done

if test -r "$cache_file"; then
  # Some versions of bash will fail to source /dev/null (special
  # files actually), so we avoid doing that.
  if test -f "$cache_file"; then
    { echo "$as_me:$LINENO: loading cache $cache_file" >&5
echo "$as_me: loading cache $cache_file" >&6;}
    case $cache_file in
      [\\/]* | ?:[\\/]* ) . $cache_file;;
      *)                      . ./$cache_file;;
    esac
  fi
else
  { echo "$as_me:$LINENO: creating cache $cache_file" >&5
echo "$as_me: creating cache $cache_file" >&6;}
  >$cache_file
fi

# Check that the precious variables saved in the cache have kept the same
# value.
ac_cache_corrupted=false
for ac_var in `(set) 2>&1 |
	       sed -n 's/^ac_env_\([a-zA-Z_0-9]*\)_set=.*/\1/p'`; do
  eval ac_old_set=\$ac_cv_env_${ac_var}_set
  eval ac_new_set=\$ac_env_${ac_var}_set
  eval ac_old_val="\$ac_cv_env_${ac_var}_value"
  eval ac_new_val="\$ac_env_${ac_var}_value"
  case $ac_old_set,$ac_new_set in
    set,)
      { echo "$as_me:$LINENO: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,set)
      { echo "$as_me:$LINENO: error: \`$ac_var' was not set in the previous run" >&5
echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,);;
    *)
      if test "x$ac_old_val" != "x$ac_new_val"; then
	{ echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
	{ echo "$as_me:$LINENO:   former value:  $ac_old_val" >&5
echo "$as_me:   former value:  $ac_old_val" >&2;}
	{ echo "$as_me:$LINENO:   current value: $ac_new_val" >&5
echo "$as_me:   current value: $ac_new_val" >&2;}
	ac_cache_corrupted=:
      fi;;
  esac
  # Pass precious variables to config.status.
  if test "$ac_new_set" = set; then
    case $ac_new_val in
    *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
      ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
    *) ac_arg=$ac_var=$ac_new_val ;;
    esac
    case " $ac_configure_args " in
      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
      *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
    esac
  fi
done
if $ac_cache_corrupted; then
  { echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5
echo "$as_me: error: changes in the environment can compromise the build" >&2;}
  { { echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;}
   { (exit 1); exit 1; }; }
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu



























VERSION_BASE=1.2


cat >>confdefs.h <<_ACEOF
#define VERSION_BASE "$VERSION_BASE"
_ACEOF

ac_aux_dir=
for ac_dir in config $srcdir/config; do
  if test -f $ac_dir/install-sh; then
    ac_aux_dir=$ac_dir
    ac_install_sh="$ac_aux_dir/install-sh -c"
    break
  elif test -f $ac_dir/install.sh; then
    ac_aux_dir=$ac_dir
    ac_install_sh="$ac_aux_dir/install.sh -c"
    break
  elif test -f $ac_dir/shtool; then
    ac_aux_dir=$ac_dir
    ac_install_sh="$ac_aux_dir/shtool install -c"
    break
  fi
done
if test -z "$ac_aux_dir"; then
  { { echo "$as_me:$LINENO: error: cannot find install-sh or install.sh in config $srcdir/config" >&5
echo "$as_me: error: cannot find install-sh or install.sh in config $srcdir/config" >&2;}
   { (exit 1); exit 1; }; }
fi
ac_config_guess="$SHELL $ac_aux_dir/config.guess"
ac_config_sub="$SHELL $ac_aux_dir/config.sub"
ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure.

          ac_config_headers="$ac_config_headers conf.h"



# Required versions of the supporting libraries.
# Must be declared after AC_INIT.
required_libz_version="1.2.1"
required_libpng_version="1.2.5"
required_libjpeg_version="6b"
required_libtiff_version="3.6.1"

# Supported options.

  # remove enable|disable prefix and convert dash to underscore
  pov_arg_enable_feature=`echo --enable-watch-cursor | sed 's,^.*able-,,; s,-,_,g'`

  # AC_ARG_ENABLE does only accept a litteral for feature name / help string
  eval "enable_povvar=\${enable_$pov_arg_enable_feature}"
  # Check whether --enable-povvar or --disable-povvar was given.
if test "${enable_povvar+set}" = set; then
  enableval="$enable_povvar"
  case $enableval in
       yes|no|"") eval "enable_${pov_arg_enable_feature}=$enableval" ;;
       *) { { echo "$as_me:$LINENO: error: bad value '$enableval' for --enable-watch-cursor" >&5
echo "$as_me: error: bad value '$enableval' for --enable-watch-cursor" >&2;}
   { (exit 1); exit 1; }; } ;;
     esac

else
  eval "enable_${pov_arg_enable_feature}="

fi;


  # remove enable|disable prefix and convert dash to underscore
  pov_arg_enable_feature=`echo --enable-debug | sed 's,^.*able-,,; s,-,_,g'`

  # AC_ARG_ENABLE does only accept a litteral for feature name / help string
  eval "enable_povvar=\${enable_$pov_arg_enable_feature}"
  # Check whether --enable-povvar or --disable-povvar was given.
if test "${enable_povvar+set}" = set; then
  enableval="$enable_povvar"
  case $enableval in
       yes|no|"") eval "enable_${pov_arg_enable_feature}=$enableval" ;;
       *) { { echo "$as_me:$LINENO: error: bad value '$enableval' for --enable-debug" >&5
echo "$as_me: error: bad value '$enableval' for --enable-debug" >&2;}
   { (exit 1); exit 1; }; } ;;
     esac

else
  eval "enable_${pov_arg_enable_feature}="

fi;


  # remove enable|disable prefix and convert dash to underscore
  pov_arg_enable_feature=`echo --enable-profile | sed 's,^.*able-,,; s,-,_,g'`

  # AC_ARG_ENABLE does only accept a litteral for feature name / help string
  eval "enable_povvar=\${enable_$pov_arg_enable_feature}"
  # Check whether --enable-povvar or --disable-povvar was given.
if test "${enable_povvar+set}" = set; then
  enableval="$enable_povvar"
  case $enableval in
       yes|no|"") eval "enable_${pov_arg_enable_feature}=$enableval" ;;
       *) { { echo "$as_me:$LINENO: error: bad value '$enableval' for --enable-profile" >&5
echo "$as_me: error: bad value '$enableval' for --enable-profile" >&2;}
   { (exit 1); exit 1; }; } ;;
     esac

else
  eval "enable_${pov_arg_enable_feature}="

fi;


  # remove enable|disable prefix and convert dash to underscore
  pov_arg_enable_feature=`echo --disable-optimiz | sed 's,^.*able-,,; s,-,_,g'`

  # AC_ARG_ENABLE does only accept a litteral for feature name / help string
  eval "enable_povvar=\${enable_$pov_arg_enable_feature}"
  # Check whether --enable-povvar or --disable-povvar was given.
if test "${enable_povvar+set}" = set; then
  enableval="$enable_povvar"
  case $enableval in
       yes|no|"") eval "enable_${pov_arg_enable_feature}=$enableval" ;;
       *) { { echo "$as_me:$LINENO: error: bad value '$enableval' for --disable-optimiz" >&5
echo "$as_me: error: bad value '$enableval' for --disable-optimiz" >&2;}
   { (exit 1); exit 1; }; } ;;
     esac

else
  eval "enable_${pov_arg_enable_feature}="

fi;


  # remove enable|disable prefix and convert dash to underscore
  pov_arg_enable_feature=`echo --disable-pipe | sed 's,^.*able-,,; s,-,_,g'`

  # AC_ARG_ENABLE does only accept a litteral for feature name / help string
  eval "enable_povvar=\${enable_$pov_arg_enable_feature}"
  # Check whether --enable-povvar or --disable-povvar was given.
if test "${enable_povvar+set}" = set; then
  enableval="$enable_povvar"
  case $enableval in
       yes|no|"") eval "enable_${pov_arg_enable_feature}=$enableval" ;;
       *) { { echo "$as_me:$LINENO: error: bad value '$enableval' for --disable-pipe" >&5
echo "$as_me: error: bad value '$enableval' for --disable-pipe" >&2;}
   { (exit 1); exit 1; }; } ;;
     esac

else
  eval "enable_${pov_arg_enable_feature}="

fi;


  # remove enable|disable prefix and convert dash to underscore
  pov_arg_enable_feature=`echo --disable-strip | sed 's,^.*able-,,; s,-,_,g'`

  # AC_ARG_ENABLE does only accept a litteral for feature name / help string
  eval "enable_povvar=\${enable_$pov_arg_enable_feature}"
  # Check whether --enable-povvar or --disable-povvar was given.
if test "${enable_povvar+set}" = set; then
  enableval="$enable_povvar"
  case $enableval in
       yes|no|"") eval "enable_${pov_arg_enable_feature}=$enableval" ;;
       *) { { echo "$as_me:$LINENO: error: bad value '$enableval' for --disable-strip" >&5
echo "$as_me: error: bad value '$enableval' for --disable-strip" >&2;}
   { (exit 1); exit 1; }; } ;;
     esac

else
  eval "enable_${pov_arg_enable_feature}="

fi;


  # remove enable|disable prefix and convert dash to underscore
  pov_arg_enable_feature=`echo --disable-shared | sed 's,^.*able-,,; s,-,_,g'`

  # AC_ARG_ENABLE does only accept a litteral for feature name / help string
  eval "enable_povvar=\${enable_$pov_arg_enable_feature}"
  # Check whether --enable-povvar or --disable-povvar was given.
if test "${enable_povvar+set}" = set; then
  enableval="$enable_povvar"
  case $enableval in
       yes|no|"") eval "enable_${pov_arg_enable_feature}=$enableval" ;;
       *) { { echo "$as_me:$LINENO: error: bad value '$enableval' for --disable-shared" >&5
echo "$as_me: error: bad value '$enableval' for --disable-shared" >&2;}
   { (exit 1); exit 1; }; } ;;
     esac

else
  eval "enable_${pov_arg_enable_feature}="

fi;


  # remove enable|disable prefix and convert dash to underscore
  pov_arg_enable_feature=`echo --disable-lib-checks | sed 's,^.*able-,,; s,-,_,g'`

  # AC_ARG_ENABLE does only accept a litteral for feature name / help string
  eval "enable_povvar=\${enable_$pov_arg_enable_feature}"
  # Check whether --enable-povvar or --disable-povvar was given.
if test "${enable_povvar+set}" = set; then
  enableval="$enable_povvar"
  case $enableval in
       yes|no|"") eval "enable_${pov_arg_enable_feature}=$enableval" ;;
       *) { { echo "$as_me:$LINENO: error: bad value '$enableval' for --disable-lib-checks" >&5
echo "$as_me: error: bad value '$enableval' for --disable-lib-checks" >&2;}
   { (exit 1); exit 1; }; } ;;
     esac

else
  eval "enable_${pov_arg_enable_feature}="

fi;


  # remove enable|disable prefix and convert dash to underscore
  pov_arg_enable_feature=`echo --disable-vsnprintf-check | sed 's,^.*able-,,; s,-,_,g'`

  # AC_ARG_ENABLE does only accept a litteral for feature name / help string
  eval "enable_povvar=\${enable_$pov_arg_enable_feature}"
  # Check whether --enable-povvar or --disable-povvar was given.
if test "${enable_povvar+set}" = set; then
  enableval="$enable_povvar"
  case $enableval in
       yes|no|"") eval "enable_${pov_arg_enable_feature}=$enableval" ;;
       *) { { echo "$as_me:$LINENO: error: bad value '$enableval' for --disable-vsnprintf-check" >&5
echo "$as_me: error: bad value '$enableval' for --disable-vsnprintf-check" >&2;}
   { (exit 1); exit 1; }; } ;;
     esac

else
  eval "enable_${pov_arg_enable_feature}="

fi;

# cannot use $PACKAGE_NAME instead of litteral POV-Ray

  # remove enable|disable prefix and convert dash to underscore
  pov_arg_enable_feature=`echo --disable-io-restrictions | sed 's,^.*able-,,; s,-,_,g'`

  # AC_ARG_ENABLE does only accept a litteral for feature name / help string
  eval "enable_povvar=\${enable_$pov_arg_enable_feature}"
  # Check whether --enable-povvar or --disable-povvar was given.
if test "${enable_povvar+set}" = set; then
  enableval="$enable_povvar"
  case $enableval in
       yes|no|"") eval "enable_${pov_arg_enable_feature}=$enableval" ;;
       *) { { echo "$as_me:$LINENO: error: bad value '$enableval' for --disable-io-restrictions" >&5
echo "$as_me: error: bad value '$enableval' for --disable-io-restrictions" >&2;}
   { (exit 1); exit 1; }; } ;;
     esac

else
  eval "enable_${pov_arg_enable_feature}="

fi;



  # remove with(out) prefix and convert dash to underscore
  pov_arg_with_package=`echo --without-cygwin-dll | sed 's,^.*with.*-,,; s,-,_,g'`

  # AC_ARG_WITH does only accept a litteral for package name / help string
  eval "with_povvar=\${with_$pov_arg_with_package}"

# Check whether --with-povvar or --without-povvar was given.
if test "${with_povvar+set}" = set; then
  withval="$with_povvar"
  case $withval in
       yes|no|"") eval "with_${pov_arg_with_package}=$withval" ;;
       *) { { echo "$as_me:$LINENO: error: bad value '$withval' for --without-cygwin-dll" >&5
echo "$as_me: error: bad value '$withval' for --without-cygwin-dll" >&2;}
   { (exit 1); exit 1; }; } ;;
     esac

else
  eval "with_${pov_arg_with_package}="

fi;


  # remove with(out) prefix and convert dash to underscore
  pov_arg_with_package=`echo --with-svga | sed 's,^.*with.*-,,; s,-,_,g'`

  # AC_ARG_WITH does only accept a litteral for package name / help string
  eval "with_povvar=\${with_$pov_arg_with_package}"

# Check whether --with-povvar or --without-povvar was given.
if test "${with_povvar+set}" = set; then
  withval="$with_povvar"
  case $withval in
       yes|no|"") eval "with_${pov_arg_with_package}=$withval" ;;
       *) { { echo "$as_me:$LINENO: error: bad value '$withval' for --with-svga" >&5
echo "$as_me: error: bad value '$withval' for --with-svga" >&2;}
   { (exit 1); exit 1; }; } ;;
     esac

else
  eval "with_${pov_arg_with_package}="

fi;






###############################################################################


# Remove povray.ini unconditionally.
rm -f ./povray.ini


# Instruction message.
if test -z "$COMPILED_BY"; then
  echo "
Welcome to the $PACKAGE_NAME $PACKAGE_VERSION configure script.

This script will prepare the source distribution of $PACKAGE_NAME $PACKAGE_VERSION for Unix
for compilation on this machine.  Compiling the program yourself means
that the POV-Ray Team(tm) is not responsible for supporting this
version, no matter if it is the unmodified official POV-Ray source code
or a customized version.  Refer to the POV-Ray source license conditions
that come with this package.

In order to start configuration, you have to provide a valid contact
information that will be included in the executable and displayed
whenever POV-Ray (or a modified version of it) is started.  In case
you intend to distribute this binary, this information will help users
to contact the appropriate maintainers.  To start configuring $PACKAGE_NAME
type in the following command with your own contact information:

./configure COMPILED_BY=\"your name <email@address>\"

Please consult the INSTALL file for additional configuration and
installation instructions.
"
  exit 1
fi


# Don't use 'echo' (not saved into config.log / doesn't honor --silent).
# Don't use AC_MSG_NOTICE which prints things first.
echo "$as_me:$LINENO: result:
===============================================================================
Configure $PACKAGE_NAME version $PACKAGE_VERSION
===============================================================================

This is an unofficial version compiled by:
 $COMPILED_BY
The POV-Ray Team(tm) is not responsible for supporting this version." >&5
echo "${ECHO_T}
===============================================================================
Configure $PACKAGE_NAME version $PACKAGE_VERSION
===============================================================================

This is an unofficial version compiled by:
 $COMPILED_BY
The POV-Ray Team(tm) is not responsible for supporting this version." >&6


cat >>confdefs.h <<_ACEOF
#define DISTRIBUTION_MESSAGE_2 " $COMPILED_BY"
_ACEOF



###############################################################################

echo "$as_me:$LINENO: result:
Environment
-----------" >&5
echo "${ECHO_T}
Environment
-----------" >&6

# Make sure we can run config.sub.
$ac_config_sub sun4 >/dev/null 2>&1 ||
  { { echo "$as_me:$LINENO: error: cannot run $ac_config_sub" >&5
echo "$as_me: error: cannot run $ac_config_sub" >&2;}
   { (exit 1); exit 1; }; }

echo "$as_me:$LINENO: checking build system type" >&5
echo $ECHO_N "checking build system type... $ECHO_C" >&6
if test "${ac_cv_build+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_build_alias=$build_alias
test -z "$ac_cv_build_alias" &&
  ac_cv_build_alias=`$ac_config_guess`
test -z "$ac_cv_build_alias" &&
  { { echo "$as_me:$LINENO: error: cannot guess build type; you must specify one" >&5
echo "$as_me: error: cannot guess build type; you must specify one" >&2;}
   { (exit 1); exit 1; }; }
ac_cv_build=`$ac_config_sub $ac_cv_build_alias` ||
  { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_build_alias failed" >&5
echo "$as_me: error: $ac_config_sub $ac_cv_build_alias failed" >&2;}
   { (exit 1); exit 1; }; }

fi
echo "$as_me:$LINENO: result: $ac_cv_build" >&5
echo "${ECHO_T}$ac_cv_build" >&6
build=$ac_cv_build
build_cpu=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
build_vendor=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
build_os=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`


echo "$as_me:$LINENO: checking host system type" >&5
echo $ECHO_N "checking host system type... $ECHO_C" >&6
if test "${ac_cv_host+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_host_alias=$host_alias
test -z "$ac_cv_host_alias" &&
  ac_cv_host_alias=$ac_cv_build_alias
ac_cv_host=`$ac_config_sub $ac_cv_host_alias` ||
  { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_host_alias failed" >&5
echo "$as_me: error: $ac_config_sub $ac_cv_host_alias failed" >&2;}
   { (exit 1); exit 1; }; }

fi
echo "$as_me:$LINENO: result: $ac_cv_host" >&5
echo "${ECHO_T}$ac_cv_host" >&6
host=$ac_cv_host
host_cpu=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
host_vendor=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
host_os=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`



am__api_version="1.9"
# Find a good install program.  We prefer a C program (faster),
# so one script is as good as another.  But avoid the broken or
# incompatible versions:
# SysV /etc/install, /usr/sbin/install
# SunOS /usr/etc/install
# IRIX /sbin/install
# AIX /bin/install
# AmigaOS /C/install, which installs bootblocks on floppy discs
# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# OS/2's system install, which has a completely different semantic
# ./install, which can be erroneously created by make from ./install.sh.
echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5
echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6
if test -z "$INSTALL"; then
if test "${ac_cv_path_install+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  # Account for people who put trailing slashes in PATH elements.
case $as_dir/ in
  ./ | .// | /cC/* | \
  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
  ?:\\/os2\\/install\\/* | ?:\\/OS2\\/INSTALL\\/* | \
  /usr/ucb/* ) ;;
  *)
    # OSF1 and SCO ODT 3.0 have their own names for install.
    # Don't use installbsd from OSF since it installs stuff as root
    # by default.
    for ac_prog in ginstall scoinst install; do
      for ac_exec_ext in '' $ac_executable_extensions; do
	if $as_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
	  if test $ac_prog = install &&
	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
	    # AIX install.  It has an incompatible calling convention.
	    :
	  elif test $ac_prog = install &&
	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
	    # program-specific install script used by HP pwplus--don't use.
	    :
	  else
	    ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
	    break 3
	  fi
	fi
      done
    done
    ;;
esac
done


fi
  if test "${ac_cv_path_install+set}" = set; then
    INSTALL=$ac_cv_path_install
  else
    # As a last resort, use the slow shell script.  We don't cache a
    # path for INSTALL within a source directory, because that will
    # break other packages using the cache if that directory is
    # removed, or if the path is relative.
    INSTALL=$ac_install_sh
  fi
fi
echo "$as_me:$LINENO: result: $INSTALL" >&5
echo "${ECHO_T}$INSTALL" >&6

# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
# It thinks the first close brace ends the variable substitution.
test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'

test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'

test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'

echo "$as_me:$LINENO: checking whether build environment is sane" >&5
echo $ECHO_N "checking whether build environment is sane... $ECHO_C" >&6
# Just in case
sleep 1
echo timestamp > conftest.file
# Do `set' in a subshell so we don't clobber the current shell's
# arguments.  Must try -L first in case configure is actually a
# symlink; some systems play weird games with the mod time of symlinks
# (eg FreeBSD returns the mod time of the symlink's containing
# directory).
if (
   set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
   if test "$*" = "X"; then
      # -L didn't work.
      set X `ls -t $srcdir/configure conftest.file`
   fi
   rm -f conftest.file
   if test "$*" != "X $srcdir/configure conftest.file" \
      && test "$*" != "X conftest.file $srcdir/configure"; then

      # If neither matched, then we have a broken ls.  This can happen
      # if, for instance, CONFIG_SHELL is bash and it inherits a
      # broken ls alias from the environment.  This has actually
      # happened.  Such a system could not be considered "sane".
      { { echo "$as_me:$LINENO: error: ls -t appears to fail.  Make sure there is not a broken
alias in your environment" >&5
echo "$as_me: error: ls -t appears to fail.  Make sure there is not a broken
alias in your environment" >&2;}
   { (exit 1); exit 1; }; }
   fi

   test "$2" = conftest.file
   )
then
   # Ok.
   :
else
   { { echo "$as_me:$LINENO: error: newly created file is older than distributed files!
Check your system clock" >&5
echo "$as_me: error: newly created file is older than distributed files!
Check your system clock" >&2;}
   { (exit 1); exit 1; }; }
fi
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
test "$program_prefix" != NONE &&
  program_transform_name="s,^,$program_prefix,;$program_transform_name"
# Use a double $ so make ignores it.
test "$program_suffix" != NONE &&
  program_transform_name="s,\$,$program_suffix,;$program_transform_name"
# Double any \ or $.  echo might interpret backslashes.
# By default was `s,x,x', remove it if useless.
cat <<\_ACEOF >conftest.sed
s/[\\$]/&&/g;s/;s,x,x,$//
_ACEOF
program_transform_name=`echo $program_transform_name | sed -f conftest.sed`
rm conftest.sed

# expand $ac_aux_dir to an absolute path
am_aux_dir=`cd $ac_aux_dir && pwd`

test x"${MISSING+set}" = xset || MISSING="\${SHELL} \"$am_aux_dir\"/missing"
# Use eval to expand $SHELL
if eval "$MISSING --run true"; then
  am_missing_run="$MISSING --run "
else
  am_missing_run=
  { echo "$as_me:$LINENO: WARNING: \`missing' script is too old or missing" >&5
echo "$as_me: WARNING: \`missing' script is too old or missing" >&2;}
fi

if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then
  # We used to keeping the `.' as first argument, in order to
  # allow $(mkdir_p) to be used without argument.  As in
  #   $(mkdir_p) $(somedir)
  # where $(somedir) is conditionally defined.  However this is wrong
  # for two reasons:
  #  1. if the package is installed by a user who cannot write `.'
  #     make install will fail,
  #  2. the above comment should most certainly read
  #     $(mkdir_p) $(DESTDIR)$(somedir)
  #     so it does not work when $(somedir) is undefined and
  #     $(DESTDIR) is not.
  #  To support the latter case, we have to write
  #     test -z "$(somedir)" || $(mkdir_p) $(DESTDIR)$(somedir),
  #  so the `.' trick is pointless.
  mkdir_p='mkdir -p --'
else
  # On NextStep and OpenStep, the `mkdir' command does not
  # recognize any option.  It will interpret all options as
  # directories to create, and then abort because `.' already
  # exists.
  for d in ./-p ./--version;
  do
    test -d $d && rmdir $d
  done
  # $(mkinstalldirs) is defined by Automake if mkinstalldirs exists.
  if test -f "$ac_aux_dir/mkinstalldirs"; then
    mkdir_p='$(mkinstalldirs)'
  else
    mkdir_p='$(install_sh) -d'
  fi
fi

for ac_prog in gawk mawk nawk awk
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_AWK+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$AWK"; then
  ac_cv_prog_AWK="$AWK" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_AWK="$ac_prog"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
AWK=$ac_cv_prog_AWK
if test -n "$AWK"; then
  echo "$as_me:$LINENO: result: $AWK" >&5
echo "${ECHO_T}$AWK" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  test -n "$AWK" && break
done

echo "$as_me:$LINENO: checking whether ${MAKE-make} sets \$(MAKE)" >&5
echo $ECHO_N "checking whether ${MAKE-make} sets \$(MAKE)... $ECHO_C" >&6
set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y,:./+-,___p_,'`
if eval "test \"\${ac_cv_prog_make_${ac_make}_set+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.make <<\_ACEOF
all:
	@echo 'ac_maketemp="$(MAKE)"'
_ACEOF
# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
eval `${MAKE-make} -f conftest.make 2>/dev/null | grep temp=`
if test -n "$ac_maketemp"; then
  eval ac_cv_prog_make_${ac_make}_set=yes
else
  eval ac_cv_prog_make_${ac_make}_set=no
fi
rm -f conftest.make
fi
if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
  SET_MAKE=
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
  SET_MAKE="MAKE=${MAKE-make}"
fi

rm -rf .tst 2>/dev/null
mkdir .tst 2>/dev/null
if test -d .tst; then
  am__leading_dot=.
else
  am__leading_dot=_
fi
rmdir .tst 2>/dev/null

# test to see if srcdir already configured
if test "`cd $srcdir && pwd`" != "`pwd`" &&
   test -f $srcdir/config.status; then
  { { echo "$as_me:$LINENO: error: source directory already configured; run \"make distclean\" there first" >&5
echo "$as_me: error: source directory already configured; run \"make distclean\" there first" >&2;}
   { (exit 1); exit 1; }; }
fi

# test whether we have cygpath
if test -z "$CYGPATH_W"; then
  if (cygpath --version) >/dev/null 2>/dev/null; then
    CYGPATH_W='cygpath -w'
  else
    CYGPATH_W=echo
  fi
fi


# Define the identity of the package.
 PACKAGE='megapov'
 VERSION='1.2'


cat >>confdefs.h <<_ACEOF
#define PACKAGE "$PACKAGE"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define VERSION "$VERSION"
_ACEOF

# Some tools Automake needs.

ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}


AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}


AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}


AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}


MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}

install_sh=${install_sh-"$am_aux_dir/install-sh"}

# Installed binaries are usually stripped using `strip' when the user
# run `make install-strip'.  However `strip' might not be the right
# tool to use in cross-compilation environments, therefore Automake
# will honor the `STRIP' environment variable to overrule this program.
if test "$cross_compiling" != no; then
  if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
set dummy ${ac_tool_prefix}strip; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_STRIP+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$STRIP"; then
  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
STRIP=$ac_cv_prog_STRIP
if test -n "$STRIP"; then
  echo "$as_me:$LINENO: result: $STRIP" >&5
echo "${ECHO_T}$STRIP" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

fi
if test -z "$ac_cv_prog_STRIP"; then
  ac_ct_STRIP=$STRIP
  # Extract the first word of "strip", so it can be a program name with args.
set dummy strip; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_STRIP"; then
  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_STRIP="strip"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

  test -z "$ac_cv_prog_ac_ct_STRIP" && ac_cv_prog_ac_ct_STRIP=":"
fi
fi
ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
if test -n "$ac_ct_STRIP"; then
  echo "$as_me:$LINENO: result: $ac_ct_STRIP" >&5
echo "${ECHO_T}$ac_ct_STRIP" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  STRIP=$ac_ct_STRIP
else
  STRIP="$ac_cv_prog_STRIP"
fi

fi
INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"

# We need awk for the "check" target.  The system "awk" is bad on
# some platforms.
# Always define AMTAR for backward compatibility.

AMTAR=${AMTAR-"${am_missing_run}tar"}

am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'





echo "$as_me:$LINENO: checking whether to enable maintainer-specific portions of Makefiles" >&5
echo $ECHO_N "checking whether to enable maintainer-specific portions of Makefiles... $ECHO_C" >&6
    # Check whether --enable-maintainer-mode or --disable-maintainer-mode was given.
if test "${enable_maintainer_mode+set}" = set; then
  enableval="$enable_maintainer_mode"
  USE_MAINTAINER_MODE=$enableval
else
  USE_MAINTAINER_MODE=no
fi;
  echo "$as_me:$LINENO: result: $USE_MAINTAINER_MODE" >&5
echo "${ECHO_T}$USE_MAINTAINER_MODE" >&6


if test $USE_MAINTAINER_MODE = yes; then
  MAINTAINER_MODE_TRUE=
  MAINTAINER_MODE_FALSE='#'
else
  MAINTAINER_MODE_TRUE='#'
  MAINTAINER_MODE_FALSE=
fi

  MAINT=$MAINTAINER_MODE_TRUE






  # process paths containing dots and create regexp
  pov_check_path_regexp="[=:]*`echo "." | sed 's,\.,\\\\.,g'`:*"
  { ac_try='echo pov_check_path_regexp = $pov_check_path_regexp > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }

  # initial and processed variable values
  eval "pov_check_path_old=\$C_INCLUDE_PATH"
  pov_check_path_new=`echo $pov_check_path_old | sed s,$pov_check_path_regexp,,g`
  { ac_try='echo pov_check_path_old    = $pov_check_path_old > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
  { ac_try='echo pov_check_path_new    = $pov_check_path_new > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }

  echo "$as_me:$LINENO: checking whether \$C_INCLUDE_PATH contains the \".\" path" >&5
echo $ECHO_N "checking whether \$C_INCLUDE_PATH contains the \".\" path... $ECHO_C" >&6
  if test x"$pov_check_path_new" != x"$pov_check_path_old"; then
    echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
    { echo "$as_me:$LINENO: WARNING: \$C_INCLUDE_PATH is incorrectly set with the \".\" path" >&5
echo "$as_me: WARNING: \$C_INCLUDE_PATH is incorrectly set with the \".\" path" >&2;}
    eval C_INCLUDE_PATH=$pov_check_path_new
    pov_warn_path="$pov_warn_path C_INCLUDE_PATH"

  else
    echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
    :
  fi




  # process paths containing dots and create regexp
  pov_check_path_regexp="[=:]*`echo "." | sed 's,\.,\\\\.,g'`:*"
  { ac_try='echo pov_check_path_regexp = $pov_check_path_regexp > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }

  # initial and processed variable values
  eval "pov_check_path_old=\$CPLUS_INCLUDE_PATH"
  pov_check_path_new=`echo $pov_check_path_old | sed s,$pov_check_path_regexp,,g`
  { ac_try='echo pov_check_path_old    = $pov_check_path_old > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
  { ac_try='echo pov_check_path_new    = $pov_check_path_new > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }

  echo "$as_me:$LINENO: checking whether \$CPLUS_INCLUDE_PATH contains the \".\" path" >&5
echo $ECHO_N "checking whether \$CPLUS_INCLUDE_PATH contains the \".\" path... $ECHO_C" >&6
  if test x"$pov_check_path_new" != x"$pov_check_path_old"; then
    echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
    { echo "$as_me:$LINENO: WARNING: \$CPLUS_INCLUDE_PATH is incorrectly set with the \".\" path" >&5
echo "$as_me: WARNING: \$CPLUS_INCLUDE_PATH is incorrectly set with the \".\" path" >&2;}
    eval CPLUS_INCLUDE_PATH=$pov_check_path_new
    pov_warn_path="$pov_warn_path CPLUS_INCLUDE_PATH"

  else
    echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
    :
  fi



###############################################################################

echo "$as_me:$LINENO: result:
Programs
--------" >&5
echo "${ECHO_T}
Programs
--------" >&6

# Check for C++ compiler and version.
# Init compiler flags to avoid defaults such as '-g -O2'.
CXXFLAGS="$CXXFLAGS"
ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
if test -n "$ac_tool_prefix"; then
  for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CXX+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CXX"; then
  ac_cv_prog_CXX="$CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
CXX=$ac_cv_prog_CXX
if test -n "$CXX"; then
  echo "$as_me:$LINENO: result: $CXX" >&5
echo "${ECHO_T}$CXX" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

    test -n "$CXX" && break
  done
fi
if test -z "$CXX"; then
  ac_ct_CXX=$CXX
  for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_CXX"; then
  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CXX="$ac_prog"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
if test -n "$ac_ct_CXX"; then
  echo "$as_me:$LINENO: result: $ac_ct_CXX" >&5
echo "${ECHO_T}$ac_ct_CXX" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  test -n "$ac_ct_CXX" && break
done
test -n "$ac_ct_CXX" || ac_ct_CXX="g++"

  CXX=$ac_ct_CXX
fi


# Provide some information about the compiler.
echo "$as_me:$LINENO:" \
     "checking for C++ compiler version" >&5
ac_compiler=`set X $ac_compile; echo $2`
{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
  (eval $ac_compiler --version </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
  (eval $ac_compiler -v </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
  (eval $ac_compiler -V </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }

cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files a.out a.exe b.out"
# Try to create an executable without -o first, disregard a.out.
# It will help us diagnose broken compilers, and finding out an intuition
# of exeext.
echo "$as_me:$LINENO: checking for C++ compiler default output file name" >&5
echo $ECHO_N "checking for C++ compiler default output file name... $ECHO_C" >&6
ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5
  (eval $ac_link_default) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; then
  # Find the output, starting from the most likely.  This scheme is
# not robust to junk in `.', hence go to wildcards (a.*) only as a last
# resort.

# Be careful to initialize this variable, since it used to be cached.
# Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile.
ac_cv_exeext=
# b.out is created by i960 compilers.
for ac_file in a_out.exe a.exe conftest.exe a.out conftest a.* conftest.* b.out
do
  test -f "$ac_file" || continue
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj )
	;;
    conftest.$ac_ext )
	# This is the source file.
	;;
    [ab].out )
	# We found the default executable, but exeext='' is most
	# certainly right.
	break;;
    *.* )
	ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
	# FIXME: I believe we export ac_cv_exeext for Libtool,
	# but it would be cool to find out if it's true.  Does anybody
	# maintain Libtool? --akim.
	export ac_cv_exeext
	break;;
    * )
	break;;
  esac
done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

{ { echo "$as_me:$LINENO: error: C++ compiler cannot create executables
See \`config.log' for more details." >&5
echo "$as_me: error: C++ compiler cannot create executables
See \`config.log' for more details." >&2;}
   { (exit 77); exit 77; }; }
fi

ac_exeext=$ac_cv_exeext
echo "$as_me:$LINENO: result: $ac_file" >&5
echo "${ECHO_T}$ac_file" >&6

# Check the compiler produces executables we can run.  If not, either
# the compiler is broken, or we cross compile.
echo "$as_me:$LINENO: checking whether the C++ compiler works" >&5
echo $ECHO_N "checking whether the C++ compiler works... $ECHO_C" >&6
# FIXME: These cross compiler hacks should be removed for Autoconf 3.0
# If not cross compiling, check that we can run a simple program.
if test "$cross_compiling" != yes; then
  if { ac_try='./$ac_file'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
    cross_compiling=no
  else
    if test "$cross_compiling" = maybe; then
	cross_compiling=yes
    else
	{ { echo "$as_me:$LINENO: error: cannot run C++ compiled programs.
If you meant to cross compile, use \`--host'.
See \`config.log' for more details." >&5
echo "$as_me: error: cannot run C++ compiled programs.
If you meant to cross compile, use \`--host'.
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
    fi
  fi
fi
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6

rm -f a.out a.exe conftest$ac_cv_exeext b.out
ac_clean_files=$ac_clean_files_save
# Check the compiler produces executables we can run.  If not, either
# the compiler is broken, or we cross compile.
echo "$as_me:$LINENO: checking whether we are cross compiling" >&5
echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6
echo "$as_me:$LINENO: result: $cross_compiling" >&5
echo "${ECHO_T}$cross_compiling" >&6

echo "$as_me:$LINENO: checking for suffix of executables" >&5
echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; then
  # If both `conftest.exe' and `conftest' are `present' (well, observable)
# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
# work properly (i.e., refer to `conftest.exe'), while it won't with
# `rm'.
for ac_file in conftest.exe conftest conftest.*; do
  test -f "$ac_file" || continue
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;;
    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
	  export ac_cv_exeext
	  break;;
    * ) break;;
  esac
done
else
  { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute suffix of executables: cannot compile and link
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi

rm -f conftest$ac_cv_exeext
echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5
echo "${ECHO_T}$ac_cv_exeext" >&6

rm -f conftest.$ac_ext
EXEEXT=$ac_cv_exeext
ac_exeext=$EXEEXT
echo "$as_me:$LINENO: checking for suffix of object files" >&5
echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6
if test "${ac_cv_objext+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.o conftest.obj
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; then
  for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg ) ;;
    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
       break;;
  esac
done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

{ { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute suffix of object files: cannot compile
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi

rm -f conftest.$ac_cv_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_objext" >&5
echo "${ECHO_T}$ac_cv_objext" >&6
OBJEXT=$ac_cv_objext
ac_objext=$OBJEXT
echo "$as_me:$LINENO: checking whether we are using the GNU C++ compiler" >&5
echo $ECHO_N "checking whether we are using the GNU C++ compiler... $ECHO_C" >&6
if test "${ac_cv_cxx_compiler_gnu+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_compiler_gnu=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_compiler_gnu=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_cxx_compiler_gnu=$ac_compiler_gnu

fi
echo "$as_me:$LINENO: result: $ac_cv_cxx_compiler_gnu" >&5
echo "${ECHO_T}$ac_cv_cxx_compiler_gnu" >&6
GXX=`test $ac_compiler_gnu = yes && echo yes`
ac_test_CXXFLAGS=${CXXFLAGS+set}
ac_save_CXXFLAGS=$CXXFLAGS
CXXFLAGS="-g"
echo "$as_me:$LINENO: checking whether $CXX accepts -g" >&5
echo $ECHO_N "checking whether $CXX accepts -g... $ECHO_C" >&6
if test "${ac_cv_prog_cxx_g+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_prog_cxx_g=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_prog_cxx_g=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_prog_cxx_g" >&5
echo "${ECHO_T}$ac_cv_prog_cxx_g" >&6
if test "$ac_test_CXXFLAGS" = set; then
  CXXFLAGS=$ac_save_CXXFLAGS
elif test $ac_cv_prog_cxx_g = yes; then
  if test "$GXX" = yes; then
    CXXFLAGS="-g -O2"
  else
    CXXFLAGS="-g"
  fi
else
  if test "$GXX" = yes; then
    CXXFLAGS="-O2"
  else
    CXXFLAGS=
  fi
fi
for ac_declaration in \
   '' \
   'extern "C" void std::exit (int) throw (); using std::exit;' \
   'extern "C" void std::exit (int); using std::exit;' \
   'extern "C" void exit (int) throw ();' \
   'extern "C" void exit (int);' \
   'void exit (int);'
do
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_declaration
#include <stdlib.h>
int
main ()
{
exit (42);
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

continue
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_declaration
int
main ()
{
exit (42);
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
done
rm -f conftest*
if test -n "$ac_declaration"; then
  echo '#ifdef __cplusplus' >>confdefs.h
  echo $ac_declaration      >>confdefs.h
  echo '#endif'             >>confdefs.h
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
DEPDIR="${am__leading_dot}deps"

          ac_config_commands="$ac_config_commands depfiles"


am_make=${MAKE-make}
cat > confinc << 'END'
am__doit:
	@echo done
.PHONY: am__doit
END
# If we don't find an include directive, just comment out the code.
echo "$as_me:$LINENO: checking for style of include used by $am_make" >&5
echo $ECHO_N "checking for style of include used by $am_make... $ECHO_C" >&6
am__include="#"
am__quote=
_am_result=none
# First try GNU make style include.
echo "include confinc" > confmf
# We grep out `Entering directory' and `Leaving directory'
# messages which can occur if `w' ends up in MAKEFLAGS.
# In particular we don't look at `^make:' because GNU make might
# be invoked under some other name (usually "gmake"), in which
# case it prints its new name instead of `make'.
if test "`$am_make -s -f confmf 2> /dev/null | grep -v 'ing directory'`" = "done"; then
   am__include=include
   am__quote=
   _am_result=GNU
fi
# Now try BSD make style include.
if test "$am__include" = "#"; then
   echo '.include "confinc"' > confmf
   if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
      am__include=.include
      am__quote="\""
      _am_result=BSD
   fi
fi


echo "$as_me:$LINENO: result: $_am_result" >&5
echo "${ECHO_T}$_am_result" >&6
rm -f confinc confmf

# Check whether --enable-dependency-tracking or --disable-dependency-tracking was given.
if test "${enable_dependency_tracking+set}" = set; then
  enableval="$enable_dependency_tracking"

fi;
if test "x$enable_dependency_tracking" != xno; then
  am_depcomp="$ac_aux_dir/depcomp"
  AMDEPBACKSLASH='\'
fi


if test "x$enable_dependency_tracking" != xno; then
  AMDEP_TRUE=
  AMDEP_FALSE='#'
else
  AMDEP_TRUE='#'
  AMDEP_FALSE=
fi




depcc="$CXX"  am_compiler_list=

echo "$as_me:$LINENO: checking dependency style of $depcc" >&5
echo $ECHO_N "checking dependency style of $depcc... $ECHO_C" >&6
if test "${am_cv_CXX_dependencies_compiler_type+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  # We make a subdir and do the tests there.  Otherwise we can end up
  # making bogus files that we don't know about and never remove.  For
  # instance it was reported that on HP-UX the gcc test will end up
  # making a dummy file named `D' -- because `-MD' means `put the output
  # in D'.
  mkdir conftest.dir
  # Copy depcomp to subdir because otherwise we won't find it if we're
  # using a relative directory.
  cp "$am_depcomp" conftest.dir
  cd conftest.dir
  # We will build objects and dependencies in a subdirectory because
  # it helps to detect inapplicable dependency modes.  For instance
  # both Tru64's cc and ICC support -MD to output dependencies as a
  # side effect of compilation, but ICC will put the dependencies in
  # the current directory while Tru64 will put them in the object
  # directory.
  mkdir sub

  am_cv_CXX_dependencies_compiler_type=none
  if test "$am_compiler_list" = ""; then
     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
  fi
  for depmode in $am_compiler_list; do
    # Setup a source with many dependencies, because some compilers
    # like to wrap large dependency lists on column 80 (with \), and
    # we should not choose a depcomp mode which is confused by this.
    #
    # We need to recreate these files for each test, as the compiler may
    # overwrite some of them when testing with obscure command lines.
    # This happens at least with the AIX C compiler.
    : > sub/conftest.c
    for i in 1 2 3 4 5 6; do
      echo '#include "conftst'$i'.h"' >> sub/conftest.c
      # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
      # Solaris 8's {/usr,}/bin/sh.
      touch sub/conftst$i.h
    done
    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf

    case $depmode in
    nosideeffect)
      # after this tag, mechanisms are not by side-effect, so they'll
      # only be used when explicitly requested
      if test "x$enable_dependency_tracking" = xyes; then
	continue
      else
	break
      fi
      ;;
    none) break ;;
    esac
    # We check with `-c' and `-o' for the sake of the "dashmstdout"
    # mode.  It turns out that the SunPro C++ compiler does not properly
    # handle `-M -o', and we need to detect this.
    if depmode=$depmode \
       source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
       $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
         >/dev/null 2>conftest.err &&
       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
       grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
      # icc doesn't choke on unknown options, it will just issue warnings
      # or remarks (even with -Werror).  So we grep stderr for any message
      # that says an option was ignored or not supported.
      # When given -MP, icc 7.0 and 7.1 complain thusly:
      #   icc: Command line warning: ignoring option '-M'; no argument required
      # The diagnosis changed in icc 8.0:
      #   icc: Command line remark: option '-MP' not supported
      if (grep 'ignoring option' conftest.err ||
          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
        am_cv_CXX_dependencies_compiler_type=$depmode
        break
      fi
    fi
  done

  cd ..
  rm -rf conftest.dir
else
  am_cv_CXX_dependencies_compiler_type=none
fi

fi
echo "$as_me:$LINENO: result: $am_cv_CXX_dependencies_compiler_type" >&5
echo "${ECHO_T}$am_cv_CXX_dependencies_compiler_type" >&6
CXXDEPMODE=depmode=$am_cv_CXX_dependencies_compiler_type



if
  test "x$enable_dependency_tracking" != xno \
  && test "$am_cv_CXX_dependencies_compiler_type" = gcc3; then
  am__fastdepCXX_TRUE=
  am__fastdepCXX_FALSE='#'
else
  am__fastdepCXX_TRUE='#'
  am__fastdepCXX_FALSE=
fi


echo "$as_me:$LINENO: checking for egrep" >&5
echo $ECHO_N "checking for egrep... $ECHO_C" >&6
if test "${ac_cv_prog_egrep+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if echo a | (grep -E '(a|b)') >/dev/null 2>&1
    then ac_cv_prog_egrep='grep -E'
    else ac_cv_prog_egrep='egrep'
    fi
fi
echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5
echo "${ECHO_T}$ac_cv_prog_egrep" >&6
 EGREP=$ac_cv_prog_egrep





  ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
if test -n "$ac_tool_prefix"; then
  for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CXX+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CXX"; then
  ac_cv_prog_CXX="$CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
CXX=$ac_cv_prog_CXX
if test -n "$CXX"; then
  echo "$as_me:$LINENO: result: $CXX" >&5
echo "${ECHO_T}$CXX" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

    test -n "$CXX" && break
  done
fi
if test -z "$CXX"; then
  ac_ct_CXX=$CXX
  for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_CXX"; then
  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CXX="$ac_prog"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
if test -n "$ac_ct_CXX"; then
  echo "$as_me:$LINENO: result: $ac_ct_CXX" >&5
echo "${ECHO_T}$ac_ct_CXX" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  test -n "$ac_ct_CXX" && break
done
test -n "$ac_ct_CXX" || ac_ct_CXX="g++"

  CXX=$ac_ct_CXX
fi


# Provide some information about the compiler.
echo "$as_me:$LINENO:" \
     "checking for C++ compiler version" >&5
ac_compiler=`set X $ac_compile; echo $2`
{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
  (eval $ac_compiler --version </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
  (eval $ac_compiler -v </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
  (eval $ac_compiler -V </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }

echo "$as_me:$LINENO: checking whether we are using the GNU C++ compiler" >&5
echo $ECHO_N "checking whether we are using the GNU C++ compiler... $ECHO_C" >&6
if test "${ac_cv_cxx_compiler_gnu+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_compiler_gnu=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_compiler_gnu=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_cxx_compiler_gnu=$ac_compiler_gnu

fi
echo "$as_me:$LINENO: result: $ac_cv_cxx_compiler_gnu" >&5
echo "${ECHO_T}$ac_cv_cxx_compiler_gnu" >&6
GXX=`test $ac_compiler_gnu = yes && echo yes`
ac_test_CXXFLAGS=${CXXFLAGS+set}
ac_save_CXXFLAGS=$CXXFLAGS
CXXFLAGS="-g"
echo "$as_me:$LINENO: checking whether $CXX accepts -g" >&5
echo $ECHO_N "checking whether $CXX accepts -g... $ECHO_C" >&6
if test "${ac_cv_prog_cxx_g+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_prog_cxx_g=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_prog_cxx_g=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_prog_cxx_g" >&5
echo "${ECHO_T}$ac_cv_prog_cxx_g" >&6
if test "$ac_test_CXXFLAGS" = set; then
  CXXFLAGS=$ac_save_CXXFLAGS
elif test $ac_cv_prog_cxx_g = yes; then
  if test "$GXX" = yes; then
    CXXFLAGS="-g -O2"
  else
    CXXFLAGS="-g"
  fi
else
  if test "$GXX" = yes; then
    CXXFLAGS="-O2"
  else
    CXXFLAGS=
  fi
fi
for ac_declaration in \
   '' \
   'extern "C" void std::exit (int) throw (); using std::exit;' \
   'extern "C" void std::exit (int); using std::exit;' \
   'extern "C" void exit (int) throw ();' \
   'extern "C" void exit (int);' \
   'void exit (int);'
do
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_declaration
#include <stdlib.h>
int
main ()
{
exit (42);
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

continue
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_declaration
int
main ()
{
exit (42);
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
done
rm -f conftest*
if test -n "$ac_declaration"; then
  echo '#ifdef __cplusplus' >>confdefs.h
  echo $ac_declaration      >>confdefs.h
  echo '#endif'             >>confdefs.h
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

depcc="$CXX"  am_compiler_list=

echo "$as_me:$LINENO: checking dependency style of $depcc" >&5
echo $ECHO_N "checking dependency style of $depcc... $ECHO_C" >&6
if test "${am_cv_CXX_dependencies_compiler_type+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  # We make a subdir and do the tests there.  Otherwise we can end up
  # making bogus files that we don't know about and never remove.  For
  # instance it was reported that on HP-UX the gcc test will end up
  # making a dummy file named `D' -- because `-MD' means `put the output
  # in D'.
  mkdir conftest.dir
  # Copy depcomp to subdir because otherwise we won't find it if we're
  # using a relative directory.
  cp "$am_depcomp" conftest.dir
  cd conftest.dir
  # We will build objects and dependencies in a subdirectory because
  # it helps to detect inapplicable dependency modes.  For instance
  # both Tru64's cc and ICC support -MD to output dependencies as a
  # side effect of compilation, but ICC will put the dependencies in
  # the current directory while Tru64 will put them in the object
  # directory.
  mkdir sub

  am_cv_CXX_dependencies_compiler_type=none
  if test "$am_compiler_list" = ""; then
     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
  fi
  for depmode in $am_compiler_list; do
    # Setup a source with many dependencies, because some compilers
    # like to wrap large dependency lists on column 80 (with \), and
    # we should not choose a depcomp mode which is confused by this.
    #
    # We need to recreate these files for each test, as the compiler may
    # overwrite some of them when testing with obscure command lines.
    # This happens at least with the AIX C compiler.
    : > sub/conftest.c
    for i in 1 2 3 4 5 6; do
      echo '#include "conftst'$i'.h"' >> sub/conftest.c
      # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
      # Solaris 8's {/usr,}/bin/sh.
      touch sub/conftst$i.h
    done
    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf

    case $depmode in
    nosideeffect)
      # after this tag, mechanisms are not by side-effect, so they'll
      # only be used when explicitly requested
      if test "x$enable_dependency_tracking" = xyes; then
	continue
      else
	break
      fi
      ;;
    none) break ;;
    esac
    # We check with `-c' and `-o' for the sake of the "dashmstdout"
    # mode.  It turns out that the SunPro C++ compiler does not properly
    # handle `-M -o', and we need to detect this.
    if depmode=$depmode \
       source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
       $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
         >/dev/null 2>conftest.err &&
       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
       grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
      # icc doesn't choke on unknown options, it will just issue warnings
      # or remarks (even with -Werror).  So we grep stderr for any message
      # that says an option was ignored or not supported.
      # When given -MP, icc 7.0 and 7.1 complain thusly:
      #   icc: Command line warning: ignoring option '-M'; no argument required
      # The diagnosis changed in icc 8.0:
      #   icc: Command line remark: option '-MP' not supported
      if (grep 'ignoring option' conftest.err ||
          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
        am_cv_CXX_dependencies_compiler_type=$depmode
        break
      fi
    fi
  done

  cd ..
  rm -rf conftest.dir
else
  am_cv_CXX_dependencies_compiler_type=none
fi

fi
echo "$as_me:$LINENO: result: $am_cv_CXX_dependencies_compiler_type" >&5
echo "${ECHO_T}$am_cv_CXX_dependencies_compiler_type" >&6
CXXDEPMODE=depmode=$am_cv_CXX_dependencies_compiler_type



if
  test "x$enable_dependency_tracking" != xno \
  && test "$am_cv_CXX_dependencies_compiler_type" = gcc3; then
  am__fastdepCXX_TRUE=
  am__fastdepCXX_FALSE='#'
else
  am__fastdepCXX_TRUE='#'
  am__fastdepCXX_FALSE=
fi


  ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
echo "$as_me:$LINENO: checking how to run the C++ preprocessor" >&5
echo $ECHO_N "checking how to run the C++ preprocessor... $ECHO_C" >&6
if test -z "$CXXCPP"; then
  if test "${ac_cv_prog_CXXCPP+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
      # Double quotes because CXXCPP needs to be expanded
    for CXXCPP in "$CXX -E" "/lib/cpp"
    do
      ac_preproc_ok=false
for ac_cxx_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.$ac_ext

  # OK, works on sane cases.  Now check whether non-existent headers
  # can be detected and how.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  # Broken: success on invalid input.
continue
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.err conftest.$ac_ext
if $ac_preproc_ok; then
  break
fi

    done
    ac_cv_prog_CXXCPP=$CXXCPP

fi
  CXXCPP=$ac_cv_prog_CXXCPP
else
  ac_cv_prog_CXXCPP=$CXXCPP
fi
echo "$as_me:$LINENO: result: $CXXCPP" >&5
echo "${ECHO_T}$CXXCPP" >&6
ac_preproc_ok=false
for ac_cxx_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.$ac_ext

  # OK, works on sane cases.  Now check whether non-existent headers
  # can be detected and how.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  # Broken: success on invalid input.
continue
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.err conftest.$ac_ext
if $ac_preproc_ok; then
  :
else
  { { echo "$as_me:$LINENO: error: C++ preprocessor \"$CXXCPP\" fails sanity check
See \`config.log' for more details." >&5
echo "$as_me: error: C++ preprocessor \"$CXXCPP\" fails sanity check
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

  echo "$as_me:$LINENO: checking for $CXX version" >&5
echo $ECHO_N "checking for $CXX version... $ECHO_C" >&6

  # check for -dumpversion
  { ac_try='$CXX -dumpversion < /dev/null 2> /dev/null > conftest.out'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
  pov_prog_cxx_version=`cat conftest.out | $ac_cv_prog_egrep '[0-9]'`

  # check for -v
  if test -z "$pov_prog_cxx_version"; then
    { ac_try='$CXX -v < /dev/null 2>&1 | tr A-Z a-z > conftest.out'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
    pov_prog_cxx_version=`cat conftest.out | $ac_cv_prog_egrep "version" | sed 's,\(.*version[[:space:]]*\)\(.*\),\2,'`
  fi

  # final compiler version string
  if test -z "$pov_prog_cxx_version"; then
    echo "$as_me:$LINENO: result: unkown" >&5
echo "${ECHO_T}unkown" >&6
    pov_prog_cxx_version="$CXX"
  else
    echo "$as_me:$LINENO: result: $pov_prog_cxx_version" >&5
echo "${ECHO_T}$pov_prog_cxx_version" >&6
    pov_prog_cxx_version="$CXX $pov_prog_cxx_version"
  fi

  rm -f conftest.out

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
echo "$as_me:$LINENO: checking how to run the C++ preprocessor" >&5
echo $ECHO_N "checking how to run the C++ preprocessor... $ECHO_C" >&6
if test -z "$CXXCPP"; then
  if test "${ac_cv_prog_CXXCPP+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
      # Double quotes because CXXCPP needs to be expanded
    for CXXCPP in "$CXX -E" "/lib/cpp"
    do
      ac_preproc_ok=false
for ac_cxx_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.$ac_ext

  # OK, works on sane cases.  Now check whether non-existent headers
  # can be detected and how.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  # Broken: success on invalid input.
continue
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.err conftest.$ac_ext
if $ac_preproc_ok; then
  break
fi

    done
    ac_cv_prog_CXXCPP=$CXXCPP

fi
  CXXCPP=$ac_cv_prog_CXXCPP
else
  ac_cv_prog_CXXCPP=$CXXCPP
fi
echo "$as_me:$LINENO: result: $CXXCPP" >&5
echo "${ECHO_T}$CXXCPP" >&6
ac_preproc_ok=false
for ac_cxx_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.$ac_ext

  # OK, works on sane cases.  Now check whether non-existent headers
  # can be detected and how.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  # Broken: success on invalid input.
continue
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.err conftest.$ac_ext
if $ac_preproc_ok; then
  :
else
  { { echo "$as_me:$LINENO: error: C++ preprocessor \"$CXXCPP\" fails sanity check
See \`config.log' for more details." >&5
echo "$as_me: error: C++ preprocessor \"$CXXCPP\" fails sanity check
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


pov_prog_cxx=`echo $CXX | sed 's,.*/,,'`  # equivalent to `basename $CXX`
pov_compiler_ver=$pov_prog_cxx
if test $pov_prog_cxx_version; then
  pov_compiler_ver="$pov_prog_cxx $pov_prog_cxx_version"
fi

cat >>confdefs.h <<_ACEOF
#define COMPILER_VER " ($pov_compiler_ver @ $host)"
_ACEOF


# Check for C compiler (used in support libraries).
# Init compiler flags to avoid defaults such as '-g -O2'.
CFLAGS="$CFLAGS"
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
set dummy ${ac_tool_prefix}gcc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}gcc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  echo "$as_me:$LINENO: result: $CC" >&5
echo "${ECHO_T}$CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

fi
if test -z "$ac_cv_prog_CC"; then
  ac_ct_CC=$CC
  # Extract the first word of "gcc", so it can be a program name with args.
set dummy gcc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="gcc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
echo "${ECHO_T}$ac_ct_CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  CC=$ac_ct_CC
else
  CC="$ac_cv_prog_CC"
fi

if test -z "$CC"; then
  if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
set dummy ${ac_tool_prefix}cc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}cc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  echo "$as_me:$LINENO: result: $CC" >&5
echo "${ECHO_T}$CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

fi
if test -z "$ac_cv_prog_CC"; then
  ac_ct_CC=$CC
  # Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="cc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
echo "${ECHO_T}$ac_ct_CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  CC=$ac_ct_CC
else
  CC="$ac_cv_prog_CC"
fi

fi
if test -z "$CC"; then
  # Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
  ac_prog_rejected=no
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
       ac_prog_rejected=yes
       continue
     fi
    ac_cv_prog_CC="cc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

if test $ac_prog_rejected = yes; then
  # We found a bogon in the path, so make sure we never use it.
  set dummy $ac_cv_prog_CC
  shift
  if test $# != 0; then
    # We chose a different compiler from the bogus one.
    # However, it has the same basename, so the bogon will be chosen
    # first if we set CC to just the basename; use the full file name.
    shift
    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
  fi
fi
fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  echo "$as_me:$LINENO: result: $CC" >&5
echo "${ECHO_T}$CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

fi
if test -z "$CC"; then
  if test -n "$ac_tool_prefix"; then
  for ac_prog in cl
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  echo "$as_me:$LINENO: result: $CC" >&5
echo "${ECHO_T}$CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

    test -n "$CC" && break
  done
fi
if test -z "$CC"; then
  ac_ct_CC=$CC
  for ac_prog in cl
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="$ac_prog"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
echo "${ECHO_T}$ac_ct_CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  test -n "$ac_ct_CC" && break
done

  CC=$ac_ct_CC
fi

fi


test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
See \`config.log' for more details." >&5
echo "$as_me: error: no acceptable C compiler found in \$PATH
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }

# Provide some information about the compiler.
echo "$as_me:$LINENO:" \
     "checking for C compiler version" >&5
ac_compiler=`set X $ac_compile; echo $2`
{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
  (eval $ac_compiler --version </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
  (eval $ac_compiler -v </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
  (eval $ac_compiler -V </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }

echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6
if test "${ac_cv_c_compiler_gnu+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_compiler_gnu=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_compiler_gnu=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_c_compiler_gnu=$ac_compiler_gnu

fi
echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6
GCC=`test $ac_compiler_gnu = yes && echo yes`
ac_test_CFLAGS=${CFLAGS+set}
ac_save_CFLAGS=$CFLAGS
CFLAGS="-g"
echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6
if test "${ac_cv_prog_cc_g+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_prog_cc_g=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_prog_cc_g=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
echo "${ECHO_T}$ac_cv_prog_cc_g" >&6
if test "$ac_test_CFLAGS" = set; then
  CFLAGS=$ac_save_CFLAGS
elif test $ac_cv_prog_cc_g = yes; then
  if test "$GCC" = yes; then
    CFLAGS="-g -O2"
  else
    CFLAGS="-g"
  fi
else
  if test "$GCC" = yes; then
    CFLAGS="-O2"
  else
    CFLAGS=
  fi
fi
echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5
echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6
if test "${ac_cv_prog_cc_stdc+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_prog_cc_stdc=no
ac_save_CC=$CC
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <stdarg.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
struct buf { int x; };
FILE * (*rcsopen) (struct buf *, struct stat *, int);
static char *e (p, i)
     char **p;
     int i;
{
  return p[i];
}
static char *f (char * (*g) (char **, int), char **p, ...)
{
  char *s;
  va_list v;
  va_start (v,p);
  s = g (p, va_arg (v,int));
  va_end (v);
  return s;
}

/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
   function prototypes and stuff, but not '\xHH' hex character constants.
   These don't provoke an error unfortunately, instead are silently treated
   as 'x'.  The following induces an error, until -std1 is added to get
   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
   array size at least.  It's necessary to write '\x00'==0 to get something
   that's true only with -std1.  */
int osf4_cc_array ['\x00' == 0 ? 1 : -1];

int test (int i, double x);
struct s1 {int (*f) (int a);};
struct s2 {int (*f) (double a);};
int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
int argc;
char **argv;
int
main ()
{
return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
  ;
  return 0;
}
_ACEOF
# Don't try gcc -ansi; that turns off useful extensions and
# breaks some systems' header files.
# AIX			-qlanglvl=ansi
# Ultrix and OSF/1	-std1
# HP-UX 10.20 and later	-Ae
# HP-UX older versions	-Aa -D_HPUX_SOURCE
# SVR4			-Xc -D__EXTENSIONS__
for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
do
  CC="$ac_save_CC $ac_arg"
  rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_prog_cc_stdc=$ac_arg
break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext
done
rm -f conftest.$ac_ext conftest.$ac_objext
CC=$ac_save_CC

fi

case "x$ac_cv_prog_cc_stdc" in
  x|xno)
    echo "$as_me:$LINENO: result: none needed" >&5
echo "${ECHO_T}none needed" >&6 ;;
  *)
    echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5
echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6
    CC="$CC $ac_cv_prog_cc_stdc" ;;
esac

# Some people use a C++ compiler to compile C.  Since we use `exit',
# in C++ we need to declare it.  In case someone uses the same compiler
# for both compiling C and C++ we need to have the C++ compiler decide
# the declaration of exit, since it's the most demanding environment.
cat >conftest.$ac_ext <<_ACEOF
#ifndef __cplusplus
  choke me
#endif
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  for ac_declaration in \
   '' \
   'extern "C" void std::exit (int) throw (); using std::exit;' \
   'extern "C" void std::exit (int); using std::exit;' \
   'extern "C" void exit (int) throw ();' \
   'extern "C" void exit (int);' \
   'void exit (int);'
do
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_declaration
#include <stdlib.h>
int
main ()
{
exit (42);
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

continue
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_declaration
int
main ()
{
exit (42);
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
done
rm -f conftest*
if test -n "$ac_declaration"; then
  echo '#ifdef __cplusplus' >>confdefs.h
  echo $ac_declaration      >>confdefs.h
  echo '#endif'             >>confdefs.h
fi

else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

depcc="$CC"   am_compiler_list=

echo "$as_me:$LINENO: checking dependency style of $depcc" >&5
echo $ECHO_N "checking dependency style of $depcc... $ECHO_C" >&6
if test "${am_cv_CC_dependencies_compiler_type+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  # We make a subdir and do the tests there.  Otherwise we can end up
  # making bogus files that we don't know about and never remove.  For
  # instance it was reported that on HP-UX the gcc test will end up
  # making a dummy file named `D' -- because `-MD' means `put the output
  # in D'.
  mkdir conftest.dir
  # Copy depcomp to subdir because otherwise we won't find it if we're
  # using a relative directory.
  cp "$am_depcomp" conftest.dir
  cd conftest.dir
  # We will build objects and dependencies in a subdirectory because
  # it helps to detect inapplicable dependency modes.  For instance
  # both Tru64's cc and ICC support -MD to output dependencies as a
  # side effect of compilation, but ICC will put the dependencies in
  # the current directory while Tru64 will put them in the object
  # directory.
  mkdir sub

  am_cv_CC_dependencies_compiler_type=none
  if test "$am_compiler_list" = ""; then
     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
  fi
  for depmode in $am_compiler_list; do
    # Setup a source with many dependencies, because some compilers
    # like to wrap large dependency lists on column 80 (with \), and
    # we should not choose a depcomp mode which is confused by this.
    #
    # We need to recreate these files for each test, as the compiler may
    # overwrite some of them when testing with obscure command lines.
    # This happens at least with the AIX C compiler.
    : > sub/conftest.c
    for i in 1 2 3 4 5 6; do
      echo '#include "conftst'$i'.h"' >> sub/conftest.c
      # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
      # Solaris 8's {/usr,}/bin/sh.
      touch sub/conftst$i.h
    done
    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf

    case $depmode in
    nosideeffect)
      # after this tag, mechanisms are not by side-effect, so they'll
      # only be used when explicitly requested
      if test "x$enable_dependency_tracking" = xyes; then
	continue
      else
	break
      fi
      ;;
    none) break ;;
    esac
    # We check with `-c' and `-o' for the sake of the "dashmstdout"
    # mode.  It turns out that the SunPro C++ compiler does not properly
    # handle `-M -o', and we need to detect this.
    if depmode=$depmode \
       source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
       $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
         >/dev/null 2>conftest.err &&
       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
       grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
      # icc doesn't choke on unknown options, it will just issue warnings
      # or remarks (even with -Werror).  So we grep stderr for any message
      # that says an option was ignored or not supported.
      # When given -MP, icc 7.0 and 7.1 complain thusly:
      #   icc: Command line warning: ignoring option '-M'; no argument required
      # The diagnosis changed in icc 8.0:
      #   icc: Command line remark: option '-MP' not supported
      if (grep 'ignoring option' conftest.err ||
          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
        am_cv_CC_dependencies_compiler_type=$depmode
        break
      fi
    fi
  done

  cd ..
  rm -rf conftest.dir
else
  am_cv_CC_dependencies_compiler_type=none
fi

fi
echo "$as_me:$LINENO: result: $am_cv_CC_dependencies_compiler_type" >&5
echo "${ECHO_T}$am_cv_CC_dependencies_compiler_type" >&6
CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type



if
  test "x$enable_dependency_tracking" != xno \
  && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
  am__fastdepCC_TRUE=
  am__fastdepCC_FALSE='#'
else
  am__fastdepCC_TRUE='#'
  am__fastdepCC_FALSE=
fi


ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5
echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6
# On Suns, sometimes $CPP names a directory.
if test -n "$CPP" && test -d "$CPP"; then
  CPP=
fi
if test -z "$CPP"; then
  if test "${ac_cv_prog_CPP+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
      # Double quotes because CPP needs to be expanded
    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
    do
      ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.$ac_ext

  # OK, works on sane cases.  Now check whether non-existent headers
  # can be detected and how.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  # Broken: success on invalid input.
continue
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.err conftest.$ac_ext
if $ac_preproc_ok; then
  break
fi

    done
    ac_cv_prog_CPP=$CPP

fi
  CPP=$ac_cv_prog_CPP
else
  ac_cv_prog_CPP=$CPP
fi
echo "$as_me:$LINENO: result: $CPP" >&5
echo "${ECHO_T}$CPP" >&6
ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.$ac_ext

  # OK, works on sane cases.  Now check whether non-existent headers
  # can be detected and how.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  # Broken: success on invalid input.
continue
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.err conftest.$ac_ext
if $ac_preproc_ok; then
  :
else
  { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check
See \`config.log' for more details." >&5
echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


# Not necessary when AM_MAINTAINER_MODE is called above.
###AC_PROG_MAKE_SET

if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
set dummy ${ac_tool_prefix}ranlib; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_RANLIB+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$RANLIB"; then
  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
RANLIB=$ac_cv_prog_RANLIB
if test -n "$RANLIB"; then
  echo "$as_me:$LINENO: result: $RANLIB" >&5
echo "${ECHO_T}$RANLIB" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

fi
if test -z "$ac_cv_prog_RANLIB"; then
  ac_ct_RANLIB=$RANLIB
  # Extract the first word of "ranlib", so it can be a program name with args.
set dummy ranlib; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_RANLIB"; then
  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_RANLIB="ranlib"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

  test -z "$ac_cv_prog_ac_ct_RANLIB" && ac_cv_prog_ac_ct_RANLIB=":"
fi
fi
ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
if test -n "$ac_ct_RANLIB"; then
  echo "$as_me:$LINENO: result: $ac_ct_RANLIB" >&5
echo "${ECHO_T}$ac_ct_RANLIB" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  RANLIB=$ac_ct_RANLIB
else
  RANLIB="$ac_cv_prog_RANLIB"
fi



###############################################################################

echo "$as_me:$LINENO: result:
Language constructs and functions
---------------------------------" >&5
echo "${ECHO_T}
Language constructs and functions
---------------------------------" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu


# Don't link with the cygwin DLL.
# Must be placed before any other header or function checks.
echo "$as_me:$LINENO: checking whether to link with cygwin DLL" >&5
echo $ECHO_N "checking whether to link with cygwin DLL... $ECHO_C" >&6
if test x"$with_cygwin_dll" = x"no"; then
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
  case "$host" in
    *cygwin*)
      pov_flags="-mno-cygwin"
      pov_cygwin_save_cxxflags="$CXXFLAGS"
      pov_cygwin_save_cflags="$CFLAGS"




  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"




  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"

              echo "$as_me:$LINENO: checking for main in -lmingw32" >&5
echo $ECHO_N "checking for main in -lmingw32... $ECHO_C" >&6
if test "${ac_cv_lib_mingw32_main+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lmingw32  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */


int
main ()
{
main ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_mingw32_main=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_mingw32_main=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_mingw32_main" >&5
echo "${ECHO_T}$ac_cv_lib_mingw32_main" >&6
if test $ac_cv_lib_mingw32_main = yes; then

                  LDFLAGS="$LDFLAGS $pov_flags"
                  # -D__CYGWIN is required for tiffio.h (incl. in tiff_pov.cpp)
                  CPPFLAGS="$CPPFLAGS -D__CYGWIN $pov_flags"

else
  with_cygwin_dll="yes"

fi


  else
    with_cygwin_dll="yes"

  fi


  else
    with_cygwin_dll="yes"

  fi

      if test x"$with_cygwin_dll" != x"no"; then
        { echo "$as_me:$LINENO: WARNING: Cannot link without Cygwin DLL" >&5
echo "$as_me: WARNING: Cannot link without Cygwin DLL" >&2;}
        CXXFLAGS="$pov_cygwin_save_cxxflags"
        CFLAGS="$pov_cygwin_save_cflags"
      fi
    ;;
  esac
else
  case "$host" in
    *cygwin*)
      echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
    ;;
    *)
      echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
    ;;
  esac
fi

# Compiling on the mingw32 platform (e.g. using MSYS) also requires
# the -D__CYGWIN flag for tiff_pov.cpp
case "$host" in
  *mingw32*)  CPPFLAGS="$CPPFLAGS -D__CYGWIN";;
esac


# Language constructs.

echo "$as_me:$LINENO: checking whether time.h and sys/time.h may both be included" >&5
echo $ECHO_N "checking whether time.h and sys/time.h may both be included... $ECHO_C" >&6
if test "${ac_cv_header_time+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>

int
main ()
{
if ((struct tm *) 0)
return 0;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_header_time=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_header_time=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_header_time" >&5
echo "${ECHO_T}$ac_cv_header_time" >&6
if test $ac_cv_header_time = yes; then

cat >>confdefs.h <<\_ACEOF
#define TIME_WITH_SYS_TIME 1
_ACEOF

fi


echo "$as_me:$LINENO: checking for ANSI C header files" >&5
echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
if test "${ac_cv_header_stdc+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <float.h>

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_header_stdc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_header_stdc=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext

if test $ac_cv_header_stdc = yes; then
  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <string.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "memchr" >/dev/null 2>&1; then
  :
else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <stdlib.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "free" >/dev/null 2>&1; then
  :
else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
  if test "$cross_compiling" = yes; then
  :
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <ctype.h>
#if ((' ' & 0x0FF) == 0x020)
# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
#else
# define ISLOWER(c) \
		   (('a' <= (c) && (c) <= 'i') \
		     || ('j' <= (c) && (c) <= 'r') \
		     || ('s' <= (c) && (c) <= 'z'))
# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
#endif

#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
int
main ()
{
  int i;
  for (i = 0; i < 256; i++)
    if (XOR (islower (i), ISLOWER (i))
	|| toupper (i) != TOUPPER (i))
      exit(2);
  exit (0);
}
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  :
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
ac_cv_header_stdc=no
fi
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
fi
fi
echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
echo "${ECHO_T}$ac_cv_header_stdc" >&6
if test $ac_cv_header_stdc = yes; then

cat >>confdefs.h <<\_ACEOF
#define STDC_HEADERS 1
_ACEOF

fi

# On IRIX 5.3, sys/types and inttypes.h are conflicting.









for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
		  inttypes.h stdint.h unistd.h
do
as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_header" >&5
echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
if eval "test \"\${$as_ac_Header+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default

#include <$ac_header>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_Header=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_Header=no"
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
if test `eval echo '${'$as_ac_Header'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF

fi

done





for ac_header in limits.h sys/time.h unistd.h
do
as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
if eval "test \"\${$as_ac_Header+set}\" = set"; then
  echo "$as_me:$LINENO: checking for $ac_header" >&5
echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
if eval "test \"\${$as_ac_Header+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking $ac_header usability" >&5
echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <$ac_header>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking $ac_header presence" >&5
echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <$ac_header>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ----------------------------------- ##
## Report this to chris_hormann@gmx.de ##
## ----------------------------------- ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for $ac_header" >&5
echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
if eval "test \"\${$as_ac_Header+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  eval "$as_ac_Header=\$ac_header_preproc"
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6

fi
if test `eval echo '${'$as_ac_Header'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF

fi

done


echo "$as_me:$LINENO: checking for size_t" >&5
echo $ECHO_N "checking for size_t... $ECHO_C" >&6
if test "${ac_cv_type_size_t+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
if ((size_t *) 0)
  return 0;
if (sizeof (size_t))
  return 0;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_type_size_t=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_type_size_t=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_type_size_t" >&5
echo "${ECHO_T}$ac_cv_type_size_t" >&6
if test $ac_cv_type_size_t = yes; then
  :
else

cat >>confdefs.h <<_ACEOF
#define size_t unsigned
_ACEOF

fi

echo "$as_me:$LINENO: checking whether struct tm is in sys/time.h or time.h" >&5
echo $ECHO_N "checking whether struct tm is in sys/time.h or time.h... $ECHO_C" >&6
if test "${ac_cv_struct_tm+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <sys/types.h>
#include <time.h>

int
main ()
{
struct tm *tp; tp->tm_sec;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_struct_tm=time.h
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_struct_tm=sys/time.h
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_struct_tm" >&5
echo "${ECHO_T}$ac_cv_struct_tm" >&6
if test $ac_cv_struct_tm = sys/time.h; then

cat >>confdefs.h <<\_ACEOF
#define TM_IN_SYS_TIME 1
_ACEOF

fi


echo "$as_me:$LINENO: checking for int" >&5
echo $ECHO_N "checking for int... $ECHO_C" >&6
if test "${ac_cv_type_int+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
if ((int *) 0)
  return 0;
if (sizeof (int))
  return 0;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_type_int=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_type_int=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_type_int" >&5
echo "${ECHO_T}$ac_cv_type_int" >&6

echo "$as_me:$LINENO: checking size of int" >&5
echo $ECHO_N "checking size of int... $ECHO_C" >&6
if test "${ac_cv_sizeof_int+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test "$ac_cv_type_int" = yes; then
  # The cast to unsigned long works around a bug in the HP C Compiler
  # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
  # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
  # This bug is HP SR number 8606223364.
  if test "$cross_compiling" = yes; then
  # Depending upon the size, compute the lo and hi bounds.
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (int))) >= 0)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_lo=0 ac_mid=0
  while :; do
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (int))) <= $ac_mid)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_hi=$ac_mid; break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_lo=`expr $ac_mid + 1`
		    if test $ac_lo -le $ac_mid; then
		      ac_lo= ac_hi=
		      break
		    fi
		    ac_mid=`expr 2 '*' $ac_mid + 1`
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (int))) < 0)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_hi=-1 ac_mid=-1
  while :; do
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (int))) >= $ac_mid)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_lo=$ac_mid; break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_hi=`expr '(' $ac_mid ')' - 1`
		       if test $ac_mid -le $ac_hi; then
			 ac_lo= ac_hi=
			 break
		       fi
		       ac_mid=`expr 2 '*' $ac_mid`
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_lo= ac_hi=
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
# Binary search between lo and hi bounds.
while test "x$ac_lo" != "x$ac_hi"; do
  ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (int))) <= $ac_mid)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_hi=$ac_mid
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_lo=`expr '(' $ac_mid ')' + 1`
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
done
case $ac_lo in
?*) ac_cv_sizeof_int=$ac_lo;;
'') { { echo "$as_me:$LINENO: error: cannot compute sizeof (int), 77
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute sizeof (int), 77
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; } ;;
esac
else
  if test "$cross_compiling" = yes; then
  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
See \`config.log' for more details." >&5
echo "$as_me: error: cannot run test program while cross compiling
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
long longval () { return (long) (sizeof (int)); }
unsigned long ulongval () { return (long) (sizeof (int)); }
#include <stdio.h>
#include <stdlib.h>
int
main ()
{

  FILE *f = fopen ("conftest.val", "w");
  if (! f)
    exit (1);
  if (((long) (sizeof (int))) < 0)
    {
      long i = longval ();
      if (i != ((long) (sizeof (int))))
	exit (1);
      fprintf (f, "%ld\n", i);
    }
  else
    {
      unsigned long i = ulongval ();
      if (i != ((long) (sizeof (int))))
	exit (1);
      fprintf (f, "%lu\n", i);
    }
  exit (ferror (f) || fclose (f) != 0);

  ;
  return 0;
}
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_sizeof_int=`cat conftest.val`
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
{ { echo "$as_me:$LINENO: error: cannot compute sizeof (int), 77
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute sizeof (int), 77
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
fi
rm -f conftest.val
else
  ac_cv_sizeof_int=0
fi
fi
echo "$as_me:$LINENO: result: $ac_cv_sizeof_int" >&5
echo "${ECHO_T}$ac_cv_sizeof_int" >&6
cat >>confdefs.h <<_ACEOF
#define SIZEOF_INT $ac_cv_sizeof_int
_ACEOF


echo "$as_me:$LINENO: checking for long int" >&5
echo $ECHO_N "checking for long int... $ECHO_C" >&6
if test "${ac_cv_type_long_int+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
if ((long int *) 0)
  return 0;
if (sizeof (long int))
  return 0;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_type_long_int=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_type_long_int=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_type_long_int" >&5
echo "${ECHO_T}$ac_cv_type_long_int" >&6

echo "$as_me:$LINENO: checking size of long int" >&5
echo $ECHO_N "checking size of long int... $ECHO_C" >&6
if test "${ac_cv_sizeof_long_int+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test "$ac_cv_type_long_int" = yes; then
  # The cast to unsigned long works around a bug in the HP C Compiler
  # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
  # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
  # This bug is HP SR number 8606223364.
  if test "$cross_compiling" = yes; then
  # Depending upon the size, compute the lo and hi bounds.
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (long int))) >= 0)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_lo=0 ac_mid=0
  while :; do
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (long int))) <= $ac_mid)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_hi=$ac_mid; break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_lo=`expr $ac_mid + 1`
		    if test $ac_lo -le $ac_mid; then
		      ac_lo= ac_hi=
		      break
		    fi
		    ac_mid=`expr 2 '*' $ac_mid + 1`
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (long int))) < 0)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_hi=-1 ac_mid=-1
  while :; do
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (long int))) >= $ac_mid)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_lo=$ac_mid; break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_hi=`expr '(' $ac_mid ')' - 1`
		       if test $ac_mid -le $ac_hi; then
			 ac_lo= ac_hi=
			 break
		       fi
		       ac_mid=`expr 2 '*' $ac_mid`
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_lo= ac_hi=
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
# Binary search between lo and hi bounds.
while test "x$ac_lo" != "x$ac_hi"; do
  ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (long int))) <= $ac_mid)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_hi=$ac_mid
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_lo=`expr '(' $ac_mid ')' + 1`
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
done
case $ac_lo in
?*) ac_cv_sizeof_long_int=$ac_lo;;
'') { { echo "$as_me:$LINENO: error: cannot compute sizeof (long int), 77
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute sizeof (long int), 77
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; } ;;
esac
else
  if test "$cross_compiling" = yes; then
  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
See \`config.log' for more details." >&5
echo "$as_me: error: cannot run test program while cross compiling
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
long longval () { return (long) (sizeof (long int)); }
unsigned long ulongval () { return (long) (sizeof (long int)); }
#include <stdio.h>
#include <stdlib.h>
int
main ()
{

  FILE *f = fopen ("conftest.val", "w");
  if (! f)
    exit (1);
  if (((long) (sizeof (long int))) < 0)
    {
      long i = longval ();
      if (i != ((long) (sizeof (long int))))
	exit (1);
      fprintf (f, "%ld\n", i);
    }
  else
    {
      unsigned long i = ulongval ();
      if (i != ((long) (sizeof (long int))))
	exit (1);
      fprintf (f, "%lu\n", i);
    }
  exit (ferror (f) || fclose (f) != 0);

  ;
  return 0;
}
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_sizeof_long_int=`cat conftest.val`
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
{ { echo "$as_me:$LINENO: error: cannot compute sizeof (long int), 77
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute sizeof (long int), 77
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
fi
rm -f conftest.val
else
  ac_cv_sizeof_long_int=0
fi
fi
echo "$as_me:$LINENO: result: $ac_cv_sizeof_long_int" >&5
echo "${ECHO_T}$ac_cv_sizeof_long_int" >&6
cat >>confdefs.h <<_ACEOF
#define SIZEOF_LONG_INT $ac_cv_sizeof_long_int
_ACEOF

	# check for 64 bit support
echo "$as_me:$LINENO: checking for size_t" >&5
echo $ECHO_N "checking for size_t... $ECHO_C" >&6
if test "${ac_cv_type_size_t+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
if ((size_t *) 0)
  return 0;
if (sizeof (size_t))
  return 0;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_type_size_t=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_type_size_t=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_type_size_t" >&5
echo "${ECHO_T}$ac_cv_type_size_t" >&6

echo "$as_me:$LINENO: checking size of size_t" >&5
echo $ECHO_N "checking size of size_t... $ECHO_C" >&6
if test "${ac_cv_sizeof_size_t+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test "$ac_cv_type_size_t" = yes; then
  # The cast to unsigned long works around a bug in the HP C Compiler
  # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
  # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
  # This bug is HP SR number 8606223364.
  if test "$cross_compiling" = yes; then
  # Depending upon the size, compute the lo and hi bounds.
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (size_t))) >= 0)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_lo=0 ac_mid=0
  while :; do
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (size_t))) <= $ac_mid)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_hi=$ac_mid; break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_lo=`expr $ac_mid + 1`
		    if test $ac_lo -le $ac_mid; then
		      ac_lo= ac_hi=
		      break
		    fi
		    ac_mid=`expr 2 '*' $ac_mid + 1`
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (size_t))) < 0)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_hi=-1 ac_mid=-1
  while :; do
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (size_t))) >= $ac_mid)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_lo=$ac_mid; break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_hi=`expr '(' $ac_mid ')' - 1`
		       if test $ac_mid -le $ac_hi; then
			 ac_lo= ac_hi=
			 break
		       fi
		       ac_mid=`expr 2 '*' $ac_mid`
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_lo= ac_hi=
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
# Binary search between lo and hi bounds.
while test "x$ac_lo" != "x$ac_hi"; do
  ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (size_t))) <= $ac_mid)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_hi=$ac_mid
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_lo=`expr '(' $ac_mid ')' + 1`
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
done
case $ac_lo in
?*) ac_cv_sizeof_size_t=$ac_lo;;
'') { { echo "$as_me:$LINENO: error: cannot compute sizeof (size_t), 77
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute sizeof (size_t), 77
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; } ;;
esac
else
  if test "$cross_compiling" = yes; then
  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
See \`config.log' for more details." >&5
echo "$as_me: error: cannot run test program while cross compiling
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
long longval () { return (long) (sizeof (size_t)); }
unsigned long ulongval () { return (long) (sizeof (size_t)); }
#include <stdio.h>
#include <stdlib.h>
int
main ()
{

  FILE *f = fopen ("conftest.val", "w");
  if (! f)
    exit (1);
  if (((long) (sizeof (size_t))) < 0)
    {
      long i = longval ();
      if (i != ((long) (sizeof (size_t))))
	exit (1);
      fprintf (f, "%ld\n", i);
    }
  else
    {
      unsigned long i = ulongval ();
      if (i != ((long) (sizeof (size_t))))
	exit (1);
      fprintf (f, "%lu\n", i);
    }
  exit (ferror (f) || fclose (f) != 0);

  ;
  return 0;
}
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_sizeof_size_t=`cat conftest.val`
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
{ { echo "$as_me:$LINENO: error: cannot compute sizeof (size_t), 77
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute sizeof (size_t), 77
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
fi
rm -f conftest.val
else
  ac_cv_sizeof_size_t=0
fi
fi
echo "$as_me:$LINENO: result: $ac_cv_sizeof_size_t" >&5
echo "${ECHO_T}$ac_cv_sizeof_size_t" >&6
cat >>confdefs.h <<_ACEOF
#define SIZEOF_SIZE_T $ac_cv_sizeof_size_t
_ACEOF

       # check for 64 bit support
echo "$as_me:$LINENO: checking for float" >&5
echo $ECHO_N "checking for float... $ECHO_C" >&6
if test "${ac_cv_type_float+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
if ((float *) 0)
  return 0;
if (sizeof (float))
  return 0;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_type_float=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_type_float=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_type_float" >&5
echo "${ECHO_T}$ac_cv_type_float" >&6

echo "$as_me:$LINENO: checking size of float" >&5
echo $ECHO_N "checking size of float... $ECHO_C" >&6
if test "${ac_cv_sizeof_float+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test "$ac_cv_type_float" = yes; then
  # The cast to unsigned long works around a bug in the HP C Compiler
  # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
  # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
  # This bug is HP SR number 8606223364.
  if test "$cross_compiling" = yes; then
  # Depending upon the size, compute the lo and hi bounds.
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (float))) >= 0)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_lo=0 ac_mid=0
  while :; do
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (float))) <= $ac_mid)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_hi=$ac_mid; break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_lo=`expr $ac_mid + 1`
		    if test $ac_lo -le $ac_mid; then
		      ac_lo= ac_hi=
		      break
		    fi
		    ac_mid=`expr 2 '*' $ac_mid + 1`
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (float))) < 0)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_hi=-1 ac_mid=-1
  while :; do
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (float))) >= $ac_mid)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_lo=$ac_mid; break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_hi=`expr '(' $ac_mid ')' - 1`
		       if test $ac_mid -le $ac_hi; then
			 ac_lo= ac_hi=
			 break
		       fi
		       ac_mid=`expr 2 '*' $ac_mid`
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
  done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_lo= ac_hi=
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
# Binary search between lo and hi bounds.
while test "x$ac_lo" != "x$ac_hi"; do
  ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{
static int test_array [1 - 2 * !(((long) (sizeof (float))) <= $ac_mid)];
test_array [0] = 0

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_hi=$ac_mid
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_lo=`expr '(' $ac_mid ')' + 1`
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
done
case $ac_lo in
?*) ac_cv_sizeof_float=$ac_lo;;
'') { { echo "$as_me:$LINENO: error: cannot compute sizeof (float), 77
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute sizeof (float), 77
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; } ;;
esac
else
  if test "$cross_compiling" = yes; then
  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
See \`config.log' for more details." >&5
echo "$as_me: error: cannot run test program while cross compiling
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
long longval () { return (long) (sizeof (float)); }
unsigned long ulongval () { return (long) (sizeof (float)); }
#include <stdio.h>
#include <stdlib.h>
int
main ()
{

  FILE *f = fopen ("conftest.val", "w");
  if (! f)
    exit (1);
  if (((long) (sizeof (float))) < 0)
    {
      long i = longval ();
      if (i != ((long) (sizeof (float))))
	exit (1);
      fprintf (f, "%ld\n", i);
    }
  else
    {
      unsigned long i = ulongval ();
      if (i != ((long) (sizeof (float))))
	exit (1);
      fprintf (f, "%lu\n", i);
    }
  exit (ferror (f) || fclose (f) != 0);

  ;
  return 0;
}
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_sizeof_float=`cat conftest.val`
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
{ { echo "$as_me:$LINENO: error: cannot compute sizeof (float), 77
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute sizeof (float), 77
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
fi
rm -f conftest.val
else
  ac_cv_sizeof_float=0
fi
fi
echo "$as_me:$LINENO: result: $ac_cv_sizeof_float" >&5
echo "${ECHO_T}$ac_cv_sizeof_float" >&6
cat >>confdefs.h <<_ACEOF
#define SIZEOF_FLOAT $ac_cv_sizeof_float
_ACEOF




# Checks for functions.

# the test for memcmp does not work well with C++
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


echo "$as_me:$LINENO: checking for working memcmp" >&5
echo $ECHO_N "checking for working memcmp... $ECHO_C" >&6
if test "${ac_cv_func_memcmp_working+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test "$cross_compiling" = yes; then
  ac_cv_func_memcmp_working=no
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{

  /* Some versions of memcmp are not 8-bit clean.  */
  char c0 = 0x40, c1 = 0x80, c2 = 0x81;
  if (memcmp(&c0, &c2, 1) >= 0 || memcmp(&c1, &c2, 1) >= 0)
    exit (1);

  /* The Next x86 OpenStep bug shows up only when comparing 16 bytes
     or more and with at least one buffer not starting on a 4-byte boundary.
     William Lewis provided this test program.   */
  {
    char foo[21];
    char bar[21];
    int i;
    for (i = 0; i < 4; i++)
      {
	char *a = foo + i;
	char *b = bar + i;
	strcpy (a, "--------01111111");
	strcpy (b, "--------10000000");
	if (memcmp (a, b, 16) >= 0)
	  exit (1);
      }
    exit (0);
  }

  ;
  return 0;
}
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_memcmp_working=yes
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
ac_cv_func_memcmp_working=no
fi
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
fi
echo "$as_me:$LINENO: result: $ac_cv_func_memcmp_working" >&5
echo "${ECHO_T}$ac_cv_func_memcmp_working" >&6
test $ac_cv_func_memcmp_working = no && case $LIBOBJS in
    "memcmp.$ac_objext"   | \
  *" memcmp.$ac_objext"   | \
    "memcmp.$ac_objext "* | \
  *" memcmp.$ac_objext "* ) ;;
  *) LIBOBJS="$LIBOBJS memcmp.$ac_objext" ;;
esac


ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu


echo "$as_me:$LINENO: checking return type of signal handlers" >&5
echo $ECHO_N "checking return type of signal handlers... $ECHO_C" >&6
if test "${ac_cv_type_signal+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <sys/types.h>
#include <signal.h>
#ifdef signal
# undef signal
#endif
#ifdef __cplusplus
extern "C" void (*signal (int, void (*)(int)))(int);
#else
void (*signal ()) ();
#endif

int
main ()
{
int i;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_type_signal=void
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_type_signal=int
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_type_signal" >&5
echo "${ECHO_T}$ac_cv_type_signal" >&6

cat >>confdefs.h <<_ACEOF
#define RETSIGTYPE $ac_cv_type_signal
_ACEOF


#AC_FUNC_STRFTIME
#AC_FUNC_VPRINTF

# vsnprintf <stdarg.h> (C99)
if test x"$enable_vsnprintf_check" != x"no"; then
  echo "$as_me:$LINENO: checking for vsnprintf" >&5
echo $ECHO_N "checking for vsnprintf... $ECHO_C" >&6
if test "${ac_cv_func_vsnprintf+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define vsnprintf to an innocuous variant, in case <limits.h> declares vsnprintf.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define vsnprintf innocuous_vsnprintf

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char vsnprintf (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef vsnprintf

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char vsnprintf ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_vsnprintf) || defined (__stub___vsnprintf)
choke me
#else
char (*f) () = vsnprintf;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != vsnprintf;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_vsnprintf=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_vsnprintf=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_vsnprintf" >&5
echo "${ECHO_T}$ac_cv_func_vsnprintf" >&6
if test $ac_cv_func_vsnprintf = yes; then
  :
else
  { { echo "$as_me:$LINENO: error:
*** This system does not provide the C99 vsnprintf() function which
*** is required to compile $PACKAGE_NAME.  You should consider updating
*** your C library as it is too old.  Alternatively you might install
*** a specific library implementing the (v)snprintf family of functions.
*** Searching the web should give you appropriate pointers.
***
*** In case you want to try compiling $PACKAGE_NAME while your system lacks
*** this function (meaning that compilation *will* fail unless you provide
*** a replacement function), try the --disable-vsnprintf-check option.
" >&5
echo "$as_me: error:
*** This system does not provide the C99 vsnprintf() function which
*** is required to compile $PACKAGE_NAME.  You should consider updating
*** your C library as it is too old.  Alternatively you might install
*** a specific library implementing the (v)snprintf family of functions.
*** Searching the web should give you appropriate pointers.
***
*** In case you want to try compiling $PACKAGE_NAME while your system lacks
*** this function (meaning that compilation *will* fail unless you provide
*** a replacement function), try the --disable-vsnprintf-check option.
" >&2;}
   { (exit 1); exit 1; }; }


fi

fi

# getcwd or its equivalent with getenv <unistd.h>
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


for ac_func in getcwd
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

else

    echo "$as_me:$LINENO: checking for working getenv(\"PWD\")" >&5
echo $ECHO_N "checking for working getenv(\"PWD\")... $ECHO_C" >&6
    if test "$cross_compiling" = yes; then

        echo "$as_me:$LINENO: result: cross-compiling" >&5
echo "${ECHO_T}cross-compiling" >&6
        { echo "$as_me:$LINENO: I/O restriction code will be disabled" >&5
echo "$as_me: I/O restriction code will be disabled" >&6;}
        enable_io_restrictions="no"


else
  cat >conftest.$ac_ext <<_ACEOF

        /* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <stdlib.h>
int main(void) { return (getenv("PWD") == NULL); }


_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )

        echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
        { echo "$as_me:$LINENO: I/O restriction code will be disabled" >&5
echo "$as_me: I/O restriction code will be disabled" >&6;}
        enable_io_restrictions="no"

fi
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi


fi
done

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu


# readlink <unistd.h>
if test x"$enable_io_restrictions" != x"no"; then

for ac_func in readlink
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

else

      { echo "$as_me:$LINENO: I/O restriction code will be disabled" >&5
echo "$as_me: I/O restriction code will be disabled" >&6;}
      enable_io_restrictions="no"


fi
done

fi

# gettimeofday <sys/time.h>

for ac_func in gettimeofday
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

cat >>confdefs.h <<\_ACEOF
#define PRECISION_TIMER_AVAILABLE 1
_ACEOF

else

cat >>confdefs.h <<\_ACEOF
#define PRECISION_TIMER_AVAILABLE 0
_ACEOF


fi
done



###############################################################################

echo "$as_me:$LINENO: result:
Libraries
---------" >&5
echo "${ECHO_T}
Libraries
---------" >&6

# Link with static library, update LDFLAGS.
echo "$as_me:$LINENO: checking whether to enable static linking" >&5
echo $ECHO_N "checking whether to enable static linking... $ECHO_C" >&6
if test x"$enable_shared" = x"no"; then
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6

  if test "${pov_cv_prog_cxx_static+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      echo "$as_me:$LINENO: checking for linker static flag" >&5
echo $ECHO_N "checking for linker static flag... $ECHO_C" >&6
      if test x"$GCC" = x"yes"; then
        pov_cv_prog_cxx_static="-static"
        case "$host_os" in
          aix*)
            pov_cv_prog_cxx_static="$pov_cv_prog_cxx_static -Wl,-lC"
            ;;
          irix*)  # [NC]
            pov_cv_prog_cxx_static="$pov_cv_prog_cxx_static -Wl,-Bstatic"
            ;;
        esac
      else
        case "$host_os" in
          aix3* | aix4* | aix5*)
            if text x"$host_cpu" = x"ia64"; then
              pov_cv_prog_cxx_static="-Bstatic"
            else
              pov_cv_prog_cxx_static="-bnso -bI:/lib/syscalls.exp"
            fi
            ;;
          hpux9* | hpux10* | hpux11*)
            pov_cv_prog_cxx_static="-Wl,-a -Wl,archive"
            ;;
          irix5* | irix6*)
            pov_cv_prog_cxx_static="-non_shared"
            ;;
          osf3* | osf4* | osf5*)
            pov_cv_prog_cxx_static="-non_shared"
            ;;
          sco3.2v5*)
            pov_cv_prog_cxx_static="-dn"
            ;;
          *)
            pov_cv_prog_cxx_static="-Bstatic"
            ;;
        esac
      fi
      echo "$as_me:$LINENO: result: $pov_cv_prog_cxx_static" >&5
echo "${ECHO_T}$pov_cv_prog_cxx_static" >&6

      # now check for working flag
      echo "$as_me:$LINENO: checking for working '$pov_cv_prog_cxx_static' flag" >&5
echo $ECHO_N "checking for working '$pov_cv_prog_cxx_static' flag... $ECHO_C" >&6
      pov_prog_cxx_static_save_ldflags="$LDFLAGS"
      LDFLAGS="$LDFLAGS $pov_cv_prog_cxx_static"
      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5


          echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
          { echo "$as_me:$LINENO: static linking does not work, revert to dynamic linking" >&5
echo "$as_me: static linking does not work, revert to dynamic linking" >&6;}
          pov_cv_prog_cxx_static=""
          LDFLAGS="$pov_prog_cxx_static_save_ldflags"


fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext


fi


else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi


# libm

echo "$as_me:$LINENO: checking for sin in -lm" >&5
echo $ECHO_N "checking for sin in -lm... $ECHO_C" >&6
if test "${ac_cv_lib_m_sin+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lm  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char sin ();
int
main ()
{
sin ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_m_sin=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_m_sin=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_m_sin" >&5
echo "${ECHO_T}$ac_cv_lib_m_sin" >&6
if test $ac_cv_lib_m_sin = yes; then
  cat >>confdefs.h <<_ACEOF
#define HAVE_LIBM 1
_ACEOF

  LIBS="-lm $LIBS"

fi



# asinh and friends (requires libm)

for ac_func in asinh
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

else

cat >>confdefs.h <<\_ACEOF
#define NEED_INVHYP
_ACEOF


fi
done



# support for non-ieee compilers (requires libm)
if test "$C99_COMPATIBLE_RADIOSITY" \
|| test x"$ac_cv_sizeof_int" != x"4" \
|| test x"$ac_cv_sizeof_float" != x"4"; then

for ac_func in copysign
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

else
  { { echo "$as_me:$LINENO: error:
*** Cannot find the 'copysign' function required for non-ieee platform
" >&5
echo "$as_me: error:
*** Cannot find the 'copysign' function required for non-ieee platform
" >&2;}
   { (exit 1); exit 1; }; }

fi
done

  if test -z "$C99_COMPATIBLE_RADIOSITY"; then  # auto-detection

for ac_func in ilogbf
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

cat >>confdefs.h <<\_ACEOF
#define C99_COMPATIBLE_RADIOSITY 2
_ACEOF

else

for ac_func in ilogb
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

cat >>confdefs.h <<\_ACEOF
#define C99_COMPATIBLE_RADIOSITY 4
_ACEOF

else

for ac_func in logbf
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

cat >>confdefs.h <<\_ACEOF
#define C99_COMPATIBLE_RADIOSITY 1
_ACEOF

else

for ac_func in logb
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

cat >>confdefs.h <<\_ACEOF
#define C99_COMPATIBLE_RADIOSITY 3
_ACEOF

else
  { { echo "$as_me:$LINENO: error:
*** Cannot find a 'logb' or equivalent function required for non-ieee platform
" >&5
echo "$as_me: error:
*** Cannot find a 'logb' or equivalent function required for non-ieee platform
" >&2;}
   { (exit 1); exit 1; }; }

fi
done


fi
done


fi
done


fi
done

  else  # check value of C99_COMPATIBLE_RADIOSITY and function presence
    case "$C99_COMPATIBLE_RADIOSITY" in
      1)
for ac_func in logbf
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

else
  { { echo "$as_me:$LINENO: error: logbf not found" >&5
echo "$as_me: error: logbf not found" >&2;}
   { (exit 1); exit 1; }; }
fi
done
 ;;
      2)
for ac_func in ilogbf
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

else
  { { echo "$as_me:$LINENO: error: ilogbf not found" >&5
echo "$as_me: error: ilogbf not found" >&2;}
   { (exit 1); exit 1; }; }
fi
done
 ;;
      3)
for ac_func in logb
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

else
  { { echo "$as_me:$LINENO: error: logb not found" >&5
echo "$as_me: error: logb not found" >&2;}
   { (exit 1); exit 1; }; }
fi
done
 ;;
      4)
for ac_func in ilogb
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
if eval "test \"\${$as_ac_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $ac_func innocuous_$ac_func

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $ac_func (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $ac_func

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $ac_func ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
choke me
#else
char (*f) () = $ac_func;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != $ac_func;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_var=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_var=no"
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
if test `eval echo '${'$as_ac_var'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

else
  { { echo "$as_me:$LINENO: error: ilogb not found" >&5
echo "$as_me: error: ilogb not found" >&2;}
   { (exit 1); exit 1; }; }
fi
done
 ;;
      *) { { echo "$as_me:$LINENO: error: Unsupported C99_COMPATIBLE_RADIOSITY value" >&5
echo "$as_me: error: Unsupported C99_COMPATIBLE_RADIOSITY value" >&2;}
   { (exit 1); exit 1; }; } ;;
    esac

cat >>confdefs.h <<_ACEOF
#define C99_COMPATIBLE_RADIOSITY $C99_COMPATIBLE_RADIOSITY
_ACEOF

  fi
fi


# Let's try to use the -v compiler flag for better debugging.
# Backup compiler flags first.
pov_lib_save_cflags="$CFLAGS"
if ! test `$CC -v < /dev/null 2> /dev/null`; then
  CFLAGS="$CFLAGS -v"
fi
pov_lib_save_cxxflags="$CXXFLAGS"
if ! test `$CXX -v < /dev/null 2> /dev/null`; then
  CXXFLAGS="$CXXFLAGS -v"
fi


# don't even look for libvga/libX11 under Cygwin/MinGW
if test x"$with_cygwin_dll" = x"no"; then

  { echo "$as_me:$LINENO: X Window display will be disabled" >&5
echo "$as_me: X Window display will be disabled" >&6;}
  { echo "$as_me:$LINENO: SVGAlib display will be disabled" >&5
echo "$as_me: SVGAlib display will be disabled" >&6;}

cat >>confdefs.h <<\_ACEOF
#define X_DISPLAY_MISSING
_ACEOF

  pov_xwin_msg="disabled"
  pov_svga_msg="disabled"

else

  # libvga and libvgagl
  pov_svga_msg="disabled"
  if test x"$with_svga" != x"no"; then
    if test "${ac_cv_header_vga_h+set}" = set; then
  echo "$as_me:$LINENO: checking for vga.h" >&5
echo $ECHO_N "checking for vga.h... $ECHO_C" >&6
if test "${ac_cv_header_vga_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_vga_h" >&5
echo "${ECHO_T}$ac_cv_header_vga_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking vga.h usability" >&5
echo $ECHO_N "checking vga.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <vga.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking vga.h presence" >&5
echo $ECHO_N "checking vga.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <vga.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: vga.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: vga.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: vga.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: vga.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: vga.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: vga.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: vga.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: vga.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: vga.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: vga.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: vga.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: vga.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: vga.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: vga.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: vga.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: vga.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ----------------------------------- ##
## Report this to chris_hormann@gmx.de ##
## ----------------------------------- ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for vga.h" >&5
echo $ECHO_N "checking for vga.h... $ECHO_C" >&6
if test "${ac_cv_header_vga_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_vga_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_vga_h" >&5
echo "${ECHO_T}$ac_cv_header_vga_h" >&6

fi
if test $ac_cv_header_vga_h = yes; then

        echo "$as_me:$LINENO: checking for vga_init in -lvga" >&5
echo $ECHO_N "checking for vga_init in -lvga... $ECHO_C" >&6
if test "${ac_cv_lib_vga_vga_init+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lvga  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char vga_init ();
int
main ()
{
vga_init ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_vga_vga_init=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_vga_vga_init=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_vga_vga_init" >&5
echo "${ECHO_T}$ac_cv_lib_vga_vga_init" >&6
if test $ac_cv_lib_vga_vga_init = yes; then


cat >>confdefs.h <<\_ACEOF
#define HAVE_LIBVGA
_ACEOF

            if test "${ac_cv_header_vgagl_h+set}" = set; then
  echo "$as_me:$LINENO: checking for vgagl.h" >&5
echo $ECHO_N "checking for vgagl.h... $ECHO_C" >&6
if test "${ac_cv_header_vgagl_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_vgagl_h" >&5
echo "${ECHO_T}$ac_cv_header_vgagl_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking vgagl.h usability" >&5
echo $ECHO_N "checking vgagl.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <vgagl.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking vgagl.h presence" >&5
echo $ECHO_N "checking vgagl.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <vgagl.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: vgagl.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: vgagl.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: vgagl.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: vgagl.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: vgagl.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: vgagl.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: vgagl.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: vgagl.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: vgagl.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: vgagl.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: vgagl.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: vgagl.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: vgagl.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: vgagl.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: vgagl.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: vgagl.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ----------------------------------- ##
## Report this to chris_hormann@gmx.de ##
## ----------------------------------- ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for vgagl.h" >&5
echo $ECHO_N "checking for vgagl.h... $ECHO_C" >&6
if test "${ac_cv_header_vgagl_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_vgagl_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_vgagl_h" >&5
echo "${ECHO_T}$ac_cv_header_vgagl_h" >&6

fi
if test $ac_cv_header_vgagl_h = yes; then

                echo "$as_me:$LINENO: checking for gl_setcontextvga in -lvgagl" >&5
echo $ECHO_N "checking for gl_setcontextvga in -lvgagl... $ECHO_C" >&6
if test "${ac_cv_lib_vgagl_gl_setcontextvga+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lvgagl -lvga
                 $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char gl_setcontextvga ();
int
main ()
{
gl_setcontextvga ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_vgagl_gl_setcontextvga=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_vgagl_gl_setcontextvga=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_vgagl_gl_setcontextvga" >&5
echo "${ECHO_T}$ac_cv_lib_vgagl_gl_setcontextvga" >&6
if test $ac_cv_lib_vgagl_gl_setcontextvga = yes; then


cat >>confdefs.h <<\_ACEOF
#define HAVE_LIBVGAGL
_ACEOF

                    LIBS="-lvgagl -lvga $LIBS"
                    pov_svga_msg="enabled"

fi



fi




fi



fi


    if test x"$pov_svga_msg" = x"disabled"; then
      { echo "$as_me:$LINENO: SVGAlib display will be disabled" >&5
echo "$as_me: SVGAlib display will be disabled" >&6;}
    fi
  fi

  # libX11
  # Some systems seem to have libz in the X11 paths, so let's
  # check for libX11 first.

  # IRIX cannot find X headers/libraries, so set defaults.
  case "$host" in
    *irix*)
      if test x"${x_includes}" = x"NONE"; then
        x_includes="/usr/include"
      fi
      if test x"$x_libraries" = x"NONE"; then
        x_libraries=""
	# IRIX ld32/64 have weird use of -L flags (they exclude default paths)
        # Add the content of LD_LIBRARY*_PATHS before system path
        # Note that the first path is intentionnaly not prefixed with -L
        if test x"$ac_cv_sizeof_long_int" = x"4"; then
          if test "$LD_LIBRARYN32_PATH"; then
            x_libraries=`echo $LD_LIBRARYN32_PATH | sed s,:," -L",g`
          fi
          x_libraries="$x_libraries -L/usr/lib32"
        else
          if test "$LD_LIBRARY64_PATH"; then
            x_libraries=`echo $LD_LIBRARY64_PATH | sed s,:," -L",g`
          fi
          x_libraries="$x_libraries -L/usr/lib64"
        fi
      fi
    ;;
  esac

  pov_xwin_msg="disabled"
  echo "$as_me:$LINENO: checking for X" >&5
echo $ECHO_N "checking for X... $ECHO_C" >&6


# Check whether --with-x or --without-x was given.
if test "${with_x+set}" = set; then
  withval="$with_x"

fi;
# $have_x is `yes', `no', `disabled', or empty when we do not yet know.
if test "x$with_x" = xno; then
  # The user explicitly disabled X.
  have_x=disabled
else
  if test "x$x_includes" != xNONE && test "x$x_libraries" != xNONE; then
    # Both variables are already set.
    have_x=yes
  else
    if test "${ac_cv_have_x+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  # One or both of the vars are not set, and there is no cached value.
ac_x_includes=no ac_x_libraries=no
rm -fr conftest.dir
if mkdir conftest.dir; then
  cd conftest.dir
  # Make sure to not put "make" in the Imakefile rules, since we grep it out.
  cat >Imakefile <<'_ACEOF'
acfindx:
	@echo 'ac_im_incroot="${INCROOT}"; ac_im_usrlibdir="${USRLIBDIR}"; ac_im_libdir="${LIBDIR}"'
_ACEOF
  if (xmkmf) >/dev/null 2>/dev/null && test -f Makefile; then
    # GNU make sometimes prints "make[1]: Entering...", which would confuse us.
    eval `${MAKE-make} acfindx 2>/dev/null | grep -v make`
    # Open Windows xmkmf reportedly sets LIBDIR instead of USRLIBDIR.
    for ac_extension in a so sl; do
      if test ! -f $ac_im_usrlibdir/libX11.$ac_extension &&
	 test -f $ac_im_libdir/libX11.$ac_extension; then
	ac_im_usrlibdir=$ac_im_libdir; break
      fi
    done
    # Screen out bogus values from the imake configuration.  They are
    # bogus both because they are the default anyway, and because
    # using them would break gcc on systems where it needs fixed includes.
    case $ac_im_incroot in
	/usr/include) ;;
	*) test -f "$ac_im_incroot/X11/Xos.h" && ac_x_includes=$ac_im_incroot;;
    esac
    case $ac_im_usrlibdir in
	/usr/lib | /lib) ;;
	*) test -d "$ac_im_usrlibdir" && ac_x_libraries=$ac_im_usrlibdir ;;
    esac
  fi
  cd ..
  rm -fr conftest.dir
fi

# Standard set of common directories for X headers.
# Check X11 before X11Rn because it is often a symlink to the current release.
ac_x_header_dirs='
/usr/X11/include
/usr/X11R6/include
/usr/X11R5/include
/usr/X11R4/include

/usr/include/X11
/usr/include/X11R6
/usr/include/X11R5
/usr/include/X11R4

/usr/local/X11/include
/usr/local/X11R6/include
/usr/local/X11R5/include
/usr/local/X11R4/include

/usr/local/include/X11
/usr/local/include/X11R6
/usr/local/include/X11R5
/usr/local/include/X11R4

/usr/X386/include
/usr/x386/include
/usr/XFree86/include/X11

/usr/include
/usr/local/include
/usr/unsupported/include
/usr/athena/include
/usr/local/x11r5/include
/usr/lpp/Xamples/include

/usr/openwin/include
/usr/openwin/share/include'

if test "$ac_x_includes" = no; then
  # Guess where to find include files, by looking for Intrinsic.h.
  # First, try using that file with no special directory specified.
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <X11/Intrinsic.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  # We can compile using X headers with no special include directory.
ac_x_includes=
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  for ac_dir in $ac_x_header_dirs; do
  if test -r "$ac_dir/X11/Intrinsic.h"; then
    ac_x_includes=$ac_dir
    break
  fi
done
fi
rm -f conftest.err conftest.$ac_ext
fi # $ac_x_includes = no

if test "$ac_x_libraries" = no; then
  # Check for the libraries.
  # See if we find them without any special options.
  # Don't add to $LIBS permanently.
  ac_save_LIBS=$LIBS
  LIBS="-lXt $LIBS"
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <X11/Intrinsic.h>
int
main ()
{
XtMalloc (0)
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  LIBS=$ac_save_LIBS
# We can link X programs with no special library path.
ac_x_libraries=
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

LIBS=$ac_save_LIBS
for ac_dir in `echo "$ac_x_includes $ac_x_header_dirs" | sed s/include/lib/g`
do
  # Don't even attempt the hair of trying to link an X program!
  for ac_extension in a so sl; do
    if test -r $ac_dir/libXt.$ac_extension; then
      ac_x_libraries=$ac_dir
      break 2
    fi
  done
done
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi # $ac_x_libraries = no

if test "$ac_x_includes" = no || test "$ac_x_libraries" = no; then
  # Didn't find X anywhere.  Cache the known absence of X.
  ac_cv_have_x="have_x=no"
else
  # Record where we found X for the cache.
  ac_cv_have_x="have_x=yes \
		ac_x_includes=$ac_x_includes ac_x_libraries=$ac_x_libraries"
fi
fi

  fi
  eval "$ac_cv_have_x"
fi # $with_x != no

if test "$have_x" != yes; then
  echo "$as_me:$LINENO: result: $have_x" >&5
echo "${ECHO_T}$have_x" >&6
  no_x=yes
else
  # If each of the values was on the command line, it overrides each guess.
  test "x$x_includes" = xNONE && x_includes=$ac_x_includes
  test "x$x_libraries" = xNONE && x_libraries=$ac_x_libraries
  # Update the cache value to reflect the command line values.
  ac_cv_have_x="have_x=yes \
		ac_x_includes=$x_includes ac_x_libraries=$x_libraries"
  echo "$as_me:$LINENO: result: libraries $x_libraries, headers $x_includes" >&5
echo "${ECHO_T}libraries $x_libraries, headers $x_includes" >&6
fi

if test "$no_x" = yes; then
  # Not all programs may use this symbol, but it does not hurt to define it.

cat >>confdefs.h <<\_ACEOF
#define X_DISPLAY_MISSING 1
_ACEOF

  X_CFLAGS= X_PRE_LIBS= X_LIBS= X_EXTRA_LIBS=
else
  if test -n "$x_includes"; then
    X_CFLAGS="$X_CFLAGS -I$x_includes"
  fi

  # It would also be nice to do this for all -L options, not just this one.
  if test -n "$x_libraries"; then
    X_LIBS="$X_LIBS -L$x_libraries"
    # For Solaris; some versions of Sun CC require a space after -R and
    # others require no space.  Words are not sufficient . . . .
    case `(uname -sr) 2>/dev/null` in
    "SunOS 5"*)
      echo "$as_me:$LINENO: checking whether -R must be followed by a space" >&5
echo $ECHO_N "checking whether -R must be followed by a space... $ECHO_C" >&6
      ac_xsave_LIBS=$LIBS; LIBS="$LIBS -R$x_libraries"
      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_R_nospace=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_R_nospace=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
      if test $ac_R_nospace = yes; then
	echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
	X_LIBS="$X_LIBS -R$x_libraries"
      else
	LIBS="$ac_xsave_LIBS -R $x_libraries"
	cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_R_space=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_R_space=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
	if test $ac_R_space = yes; then
	  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
	  X_LIBS="$X_LIBS -R $x_libraries"
	else
	  echo "$as_me:$LINENO: result: neither works" >&5
echo "${ECHO_T}neither works" >&6
	fi
      fi
      LIBS=$ac_xsave_LIBS
    esac
  fi

  # Check for system-dependent libraries X programs must link with.
  # Do this before checking for the system-independent R6 libraries
  # (-lICE), since we may need -lsocket or whatever for X linking.

  if test "$ISC" = yes; then
    X_EXTRA_LIBS="$X_EXTRA_LIBS -lnsl_s -linet"
  else
    # Martyn Johnson says this is needed for Ultrix, if the X
    # libraries were built with DECnet support.  And Karl Berry says
    # the Alpha needs dnet_stub (dnet does not exist).
    ac_xsave_LIBS="$LIBS"; LIBS="$LIBS $X_LIBS -lX11"
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char XOpenDisplay ();
int
main ()
{
XOpenDisplay ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

echo "$as_me:$LINENO: checking for dnet_ntoa in -ldnet" >&5
echo $ECHO_N "checking for dnet_ntoa in -ldnet... $ECHO_C" >&6
if test "${ac_cv_lib_dnet_dnet_ntoa+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-ldnet  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char dnet_ntoa ();
int
main ()
{
dnet_ntoa ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_dnet_dnet_ntoa=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_dnet_dnet_ntoa=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_dnet_dnet_ntoa" >&5
echo "${ECHO_T}$ac_cv_lib_dnet_dnet_ntoa" >&6
if test $ac_cv_lib_dnet_dnet_ntoa = yes; then
  X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet"
fi

    if test $ac_cv_lib_dnet_dnet_ntoa = no; then
      echo "$as_me:$LINENO: checking for dnet_ntoa in -ldnet_stub" >&5
echo $ECHO_N "checking for dnet_ntoa in -ldnet_stub... $ECHO_C" >&6
if test "${ac_cv_lib_dnet_stub_dnet_ntoa+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-ldnet_stub  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char dnet_ntoa ();
int
main ()
{
dnet_ntoa ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_dnet_stub_dnet_ntoa=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_dnet_stub_dnet_ntoa=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_dnet_stub_dnet_ntoa" >&5
echo "${ECHO_T}$ac_cv_lib_dnet_stub_dnet_ntoa" >&6
if test $ac_cv_lib_dnet_stub_dnet_ntoa = yes; then
  X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet_stub"
fi

    fi
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
    LIBS="$ac_xsave_LIBS"

    # msh@cis.ufl.edu says -lnsl (and -lsocket) are needed for his 386/AT,
    # to get the SysV transport functions.
    # Chad R. Larson says the Pyramis MIS-ES running DC/OSx (SVR4)
    # needs -lnsl.
    # The nsl library prevents programs from opening the X display
    # on Irix 5.2, according to T.E. Dickey.
    # The functions gethostbyname, getservbyname, and inet_addr are
    # in -lbsd on LynxOS 3.0.1/i386, according to Lars Hecking.
    echo "$as_me:$LINENO: checking for gethostbyname" >&5
echo $ECHO_N "checking for gethostbyname... $ECHO_C" >&6
if test "${ac_cv_func_gethostbyname+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define gethostbyname to an innocuous variant, in case <limits.h> declares gethostbyname.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define gethostbyname innocuous_gethostbyname

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char gethostbyname (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef gethostbyname

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char gethostbyname ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_gethostbyname) || defined (__stub___gethostbyname)
choke me
#else
char (*f) () = gethostbyname;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != gethostbyname;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_gethostbyname=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_gethostbyname=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_gethostbyname" >&5
echo "${ECHO_T}$ac_cv_func_gethostbyname" >&6

    if test $ac_cv_func_gethostbyname = no; then
      echo "$as_me:$LINENO: checking for gethostbyname in -lnsl" >&5
echo $ECHO_N "checking for gethostbyname in -lnsl... $ECHO_C" >&6
if test "${ac_cv_lib_nsl_gethostbyname+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lnsl  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char gethostbyname ();
int
main ()
{
gethostbyname ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_nsl_gethostbyname=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_nsl_gethostbyname=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_nsl_gethostbyname" >&5
echo "${ECHO_T}$ac_cv_lib_nsl_gethostbyname" >&6
if test $ac_cv_lib_nsl_gethostbyname = yes; then
  X_EXTRA_LIBS="$X_EXTRA_LIBS -lnsl"
fi

      if test $ac_cv_lib_nsl_gethostbyname = no; then
	echo "$as_me:$LINENO: checking for gethostbyname in -lbsd" >&5
echo $ECHO_N "checking for gethostbyname in -lbsd... $ECHO_C" >&6
if test "${ac_cv_lib_bsd_gethostbyname+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lbsd  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char gethostbyname ();
int
main ()
{
gethostbyname ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_bsd_gethostbyname=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_bsd_gethostbyname=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_bsd_gethostbyname" >&5
echo "${ECHO_T}$ac_cv_lib_bsd_gethostbyname" >&6
if test $ac_cv_lib_bsd_gethostbyname = yes; then
  X_EXTRA_LIBS="$X_EXTRA_LIBS -lbsd"
fi

      fi
    fi

    # lieder@skyler.mavd.honeywell.com says without -lsocket,
    # socket/setsockopt and other routines are undefined under SCO ODT
    # 2.0.  But -lsocket is broken on IRIX 5.2 (and is not necessary
    # on later versions), says Simon Leinen: it contains gethostby*
    # variants that don't use the name server (or something).  -lsocket
    # must be given before -lnsl if both are needed.  We assume that
    # if connect needs -lnsl, so does gethostbyname.
    echo "$as_me:$LINENO: checking for connect" >&5
echo $ECHO_N "checking for connect... $ECHO_C" >&6
if test "${ac_cv_func_connect+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define connect to an innocuous variant, in case <limits.h> declares connect.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define connect innocuous_connect

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char connect (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef connect

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char connect ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_connect) || defined (__stub___connect)
choke me
#else
char (*f) () = connect;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != connect;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_connect=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_connect=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_connect" >&5
echo "${ECHO_T}$ac_cv_func_connect" >&6

    if test $ac_cv_func_connect = no; then
      echo "$as_me:$LINENO: checking for connect in -lsocket" >&5
echo $ECHO_N "checking for connect in -lsocket... $ECHO_C" >&6
if test "${ac_cv_lib_socket_connect+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lsocket $X_EXTRA_LIBS $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char connect ();
int
main ()
{
connect ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_socket_connect=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_socket_connect=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_socket_connect" >&5
echo "${ECHO_T}$ac_cv_lib_socket_connect" >&6
if test $ac_cv_lib_socket_connect = yes; then
  X_EXTRA_LIBS="-lsocket $X_EXTRA_LIBS"
fi

    fi

    # Guillermo Gomez says -lposix is necessary on A/UX.
    echo "$as_me:$LINENO: checking for remove" >&5
echo $ECHO_N "checking for remove... $ECHO_C" >&6
if test "${ac_cv_func_remove+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define remove to an innocuous variant, in case <limits.h> declares remove.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define remove innocuous_remove

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char remove (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef remove

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char remove ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_remove) || defined (__stub___remove)
choke me
#else
char (*f) () = remove;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != remove;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_remove=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_remove=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_remove" >&5
echo "${ECHO_T}$ac_cv_func_remove" >&6

    if test $ac_cv_func_remove = no; then
      echo "$as_me:$LINENO: checking for remove in -lposix" >&5
echo $ECHO_N "checking for remove in -lposix... $ECHO_C" >&6
if test "${ac_cv_lib_posix_remove+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lposix  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char remove ();
int
main ()
{
remove ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_posix_remove=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_posix_remove=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_posix_remove" >&5
echo "${ECHO_T}$ac_cv_lib_posix_remove" >&6
if test $ac_cv_lib_posix_remove = yes; then
  X_EXTRA_LIBS="$X_EXTRA_LIBS -lposix"
fi

    fi

    # BSDI BSD/OS 2.1 needs -lipc for XOpenDisplay.
    echo "$as_me:$LINENO: checking for shmat" >&5
echo $ECHO_N "checking for shmat... $ECHO_C" >&6
if test "${ac_cv_func_shmat+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define shmat to an innocuous variant, in case <limits.h> declares shmat.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define shmat innocuous_shmat

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char shmat (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef shmat

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char shmat ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_shmat) || defined (__stub___shmat)
choke me
#else
char (*f) () = shmat;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != shmat;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_shmat=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_shmat=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_shmat" >&5
echo "${ECHO_T}$ac_cv_func_shmat" >&6

    if test $ac_cv_func_shmat = no; then
      echo "$as_me:$LINENO: checking for shmat in -lipc" >&5
echo $ECHO_N "checking for shmat in -lipc... $ECHO_C" >&6
if test "${ac_cv_lib_ipc_shmat+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lipc  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char shmat ();
int
main ()
{
shmat ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_ipc_shmat=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_ipc_shmat=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_ipc_shmat" >&5
echo "${ECHO_T}$ac_cv_lib_ipc_shmat" >&6
if test $ac_cv_lib_ipc_shmat = yes; then
  X_EXTRA_LIBS="$X_EXTRA_LIBS -lipc"
fi

    fi
  fi

  # Check for libraries that X11R6 Xt/Xaw programs need.
  ac_save_LDFLAGS=$LDFLAGS
  test -n "$x_libraries" && LDFLAGS="$LDFLAGS -L$x_libraries"
  # SM needs ICE to (dynamically) link under SunOS 4.x (so we have to
  # check for ICE first), but we must link in the order -lSM -lICE or
  # we get undefined symbols.  So assume we have SM if we have ICE.
  # These have to be linked with before -lX11, unlike the other
  # libraries we check for below, so use a different variable.
  # John Interrante, Karl Berry
  echo "$as_me:$LINENO: checking for IceConnectionNumber in -lICE" >&5
echo $ECHO_N "checking for IceConnectionNumber in -lICE... $ECHO_C" >&6
if test "${ac_cv_lib_ICE_IceConnectionNumber+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lICE $X_EXTRA_LIBS $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char IceConnectionNumber ();
int
main ()
{
IceConnectionNumber ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_ICE_IceConnectionNumber=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_ICE_IceConnectionNumber=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_ICE_IceConnectionNumber" >&5
echo "${ECHO_T}$ac_cv_lib_ICE_IceConnectionNumber" >&6
if test $ac_cv_lib_ICE_IceConnectionNumber = yes; then
  X_PRE_LIBS="$X_PRE_LIBS -lSM -lICE"
fi

  LDFLAGS=$ac_save_LDFLAGS

fi

  if test x"$have_x" = x"yes"; then
    if test "${ac_cv_header_X11_Xlib_h+set}" = set; then
  echo "$as_me:$LINENO: checking for X11/Xlib.h" >&5
echo $ECHO_N "checking for X11/Xlib.h... $ECHO_C" >&6
if test "${ac_cv_header_X11_Xlib_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_X11_Xlib_h" >&5
echo "${ECHO_T}$ac_cv_header_X11_Xlib_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking X11/Xlib.h usability" >&5
echo $ECHO_N "checking X11/Xlib.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <X11/Xlib.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking X11/Xlib.h presence" >&5
echo $ECHO_N "checking X11/Xlib.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <X11/Xlib.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: X11/Xlib.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: X11/Xlib.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/Xlib.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: X11/Xlib.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: X11/Xlib.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: X11/Xlib.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/Xlib.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: X11/Xlib.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/Xlib.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: X11/Xlib.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/Xlib.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: X11/Xlib.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/Xlib.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: X11/Xlib.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/Xlib.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: X11/Xlib.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ----------------------------------- ##
## Report this to chris_hormann@gmx.de ##
## ----------------------------------- ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for X11/Xlib.h" >&5
echo $ECHO_N "checking for X11/Xlib.h... $ECHO_C" >&6
if test "${ac_cv_header_X11_Xlib_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_X11_Xlib_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_X11_Xlib_h" >&5
echo "${ECHO_T}$ac_cv_header_X11_Xlib_h" >&6

fi
if test $ac_cv_header_X11_Xlib_h = yes; then

        echo "$as_me:$LINENO: checking for XFlush in -lX11" >&5
echo $ECHO_N "checking for XFlush in -lX11... $ECHO_C" >&6
if test "${ac_cv_lib_X11_XFlush+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lX11 -L$x_libraries -lX11
         $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char XFlush ();
int
main ()
{
XFlush ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_X11_XFlush=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_X11_XFlush=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_X11_XFlush" >&5
echo "${ECHO_T}$ac_cv_lib_X11_XFlush" >&6
if test $ac_cv_lib_X11_XFlush = yes; then

            # X_CFLAGS should actually be X_CPPFLAGS since it only adds -Idir
            CPPFLAGS="$X_CFLAGS $CPPFLAGS"
            LDFLAGS="$X_LIBS $LDFLAGS"
            LIBS="$X_EXTRA_LIBS $X_PRE_LIBS -lX11 $LIBS"
            pov_xwin_msg="enabled"

else

            { echo "$as_me:$LINENO: X Window display will be disabled" >&5
echo "$as_me: X Window display will be disabled" >&6;}
            cat >>confdefs.h <<\_ACEOF
#define X_DISPLAY_MISSING 1
_ACEOF


fi



fi


  else
    { echo "$as_me:$LINENO: X Window display will be disabled" >&5
echo "$as_me: X Window display will be disabled" >&6;}
  fi

  if test x"$pov_xwin_msg" = x"enabled"; then
    # Color icon and X Window cursor.
    if test "${ac_cv_header_X11_xpm_h+set}" = set; then
  echo "$as_me:$LINENO: checking for X11/xpm.h" >&5
echo $ECHO_N "checking for X11/xpm.h... $ECHO_C" >&6
if test "${ac_cv_header_X11_xpm_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_X11_xpm_h" >&5
echo "${ECHO_T}$ac_cv_header_X11_xpm_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking X11/xpm.h usability" >&5
echo $ECHO_N "checking X11/xpm.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <X11/xpm.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking X11/xpm.h presence" >&5
echo $ECHO_N "checking X11/xpm.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <X11/xpm.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: X11/xpm.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: X11/xpm.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/xpm.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: X11/xpm.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: X11/xpm.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: X11/xpm.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/xpm.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: X11/xpm.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/xpm.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: X11/xpm.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/xpm.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: X11/xpm.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/xpm.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: X11/xpm.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/xpm.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: X11/xpm.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ----------------------------------- ##
## Report this to chris_hormann@gmx.de ##
## ----------------------------------- ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for X11/xpm.h" >&5
echo $ECHO_N "checking for X11/xpm.h... $ECHO_C" >&6
if test "${ac_cv_header_X11_xpm_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_X11_xpm_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_X11_xpm_h" >&5
echo "${ECHO_T}$ac_cv_header_X11_xpm_h" >&6

fi
if test $ac_cv_header_X11_xpm_h = yes; then

echo "$as_me:$LINENO: checking for XpmCreatePixmapFromData in -lXpm" >&5
echo $ECHO_N "checking for XpmCreatePixmapFromData in -lXpm... $ECHO_C" >&6
if test "${ac_cv_lib_Xpm_XpmCreatePixmapFromData+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lXpm  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char XpmCreatePixmapFromData ();
int
main ()
{
XpmCreatePixmapFromData ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_Xpm_XpmCreatePixmapFromData=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_Xpm_XpmCreatePixmapFromData=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_Xpm_XpmCreatePixmapFromData" >&5
echo "${ECHO_T}$ac_cv_lib_Xpm_XpmCreatePixmapFromData" >&6
if test $ac_cv_lib_Xpm_XpmCreatePixmapFromData = yes; then
  cat >>confdefs.h <<_ACEOF
#define HAVE_LIBXPM 1
_ACEOF

  LIBS="-lXpm $LIBS"

fi


fi


    echo "$as_me:$LINENO: checking whether to enable the watch cursor" >&5
echo $ECHO_N "checking whether to enable the watch cursor... $ECHO_C" >&6
    if test x"$enable_watch_cursor" = x"yes"; then
      echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
      if test "${ac_cv_header_X11_cursorfont_h+set}" = set; then
  echo "$as_me:$LINENO: checking for X11/cursorfont.h" >&5
echo $ECHO_N "checking for X11/cursorfont.h... $ECHO_C" >&6
if test "${ac_cv_header_X11_cursorfont_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_X11_cursorfont_h" >&5
echo "${ECHO_T}$ac_cv_header_X11_cursorfont_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking X11/cursorfont.h usability" >&5
echo $ECHO_N "checking X11/cursorfont.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <X11/cursorfont.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking X11/cursorfont.h presence" >&5
echo $ECHO_N "checking X11/cursorfont.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <X11/cursorfont.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: X11/cursorfont.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: X11/cursorfont.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/cursorfont.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: X11/cursorfont.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: X11/cursorfont.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: X11/cursorfont.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/cursorfont.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: X11/cursorfont.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/cursorfont.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: X11/cursorfont.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/cursorfont.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: X11/cursorfont.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/cursorfont.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: X11/cursorfont.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: X11/cursorfont.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: X11/cursorfont.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ----------------------------------- ##
## Report this to chris_hormann@gmx.de ##
## ----------------------------------- ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for X11/cursorfont.h" >&5
echo $ECHO_N "checking for X11/cursorfont.h... $ECHO_C" >&6
if test "${ac_cv_header_X11_cursorfont_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_X11_cursorfont_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_X11_cursorfont_h" >&5
echo "${ECHO_T}$ac_cv_header_X11_cursorfont_h" >&6

fi
if test $ac_cv_header_X11_cursorfont_h = yes; then

          echo "$as_me:$LINENO: checking for XCreateFontCursor" >&5
echo $ECHO_N "checking for XCreateFontCursor... $ECHO_C" >&6
if test "${ac_cv_func_XCreateFontCursor+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
/* Define XCreateFontCursor to an innocuous variant, in case <limits.h> declares XCreateFontCursor.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define XCreateFontCursor innocuous_XCreateFontCursor

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char XCreateFontCursor (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef XCreateFontCursor

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char XCreateFontCursor ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_XCreateFontCursor) || defined (__stub___XCreateFontCursor)
choke me
#else
char (*f) () = XCreateFontCursor;
#endif
#ifdef __cplusplus
}
#endif

int
main ()
{
return f != XCreateFontCursor;
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_cxx_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_XCreateFontCursor=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_XCreateFontCursor=no
fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_XCreateFontCursor" >&5
echo "${ECHO_T}$ac_cv_func_XCreateFontCursor" >&6
if test $ac_cv_func_XCreateFontCursor = yes; then

cat >>confdefs.h <<\_ACEOF
#define USE_CURSOR
_ACEOF

else
  { echo "$as_me:$LINENO: watch cursor will be disabled" >&5
echo "$as_me: watch cursor will be disabled" >&6;}

fi



fi


    else
      echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
    fi
  fi

  ### Note from Warp <warp@tag.povray.org> :
  # Using "-static" for static linking in Solaris causes a linkage error.
  # For some reason the X libraries in Solaris are not designed for static
  # linking. [...] So at least for Solaris the '-static' flag should
  # definitely be turned off by default.
  if test "$pov_cv_prog_cc_static" \
  && test x"$ac_cv_lib_X11_XFlush" = x"yes"; then
    case "$host" in
      sparc-*)
        { echo "$as_me:$LINENO: WARNING: Using $pov_cv_prog_cc_static might cause a linkage error" >&5
echo "$as_me: WARNING: Using $pov_cv_prog_cc_static might cause a linkage error" >&2;}
      ;;
    esac
  fi

fi  # with_cygwin_dll


echo "$as_me:$LINENO: checking for installed supporting libraries" >&5
echo $ECHO_N "checking for installed supporting libraries... $ECHO_C" >&6
if test x"$enable_lib_checks" != x"no"; then
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me:$LINENO: result: no, build them all" >&5
echo "${ECHO_T}no, build them all" >&6
fi


# Force the C compiler for testing the supporting libraries.
# This may prevent build failure on some systems.
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu



# libz
if test x"$enable_lib_checks" != x"no"; then


  # check the library
  echo "$as_me:$LINENO: checking for library containing zlibVersion" >&5
echo $ECHO_N "checking for library containing zlibVersion... $ECHO_C" >&6
if test "${ac_cv_search_zlibVersion+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_func_search_save_LIBS=$LIBS
ac_cv_search_zlibVersion=no
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char zlibVersion ();
int
main ()
{
zlibVersion ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_search_zlibVersion="none required"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
if test "$ac_cv_search_zlibVersion" = no; then
  for ac_lib in z; do
    LIBS="-l$ac_lib
   $ac_func_search_save_LIBS"
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char zlibVersion ();
int
main ()
{
zlibVersion ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_search_zlibVersion="-l$ac_lib"
break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
  done
fi
LIBS=$ac_func_search_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_search_zlibVersion" >&5
echo "${ECHO_T}$ac_cv_search_zlibVersion" >&6
if test "$ac_cv_search_zlibVersion" != no; then
  test "$ac_cv_search_zlibVersion" = "none required" || LIBS="$ac_cv_search_zlibVersion $LIBS"

      # check include file
      if test "${ac_cv_header_zlib_h+set}" = set; then
  echo "$as_me:$LINENO: checking for zlib.h" >&5
echo $ECHO_N "checking for zlib.h... $ECHO_C" >&6
if test "${ac_cv_header_zlib_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_zlib_h" >&5
echo "${ECHO_T}$ac_cv_header_zlib_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking zlib.h usability" >&5
echo $ECHO_N "checking zlib.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <zlib.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking zlib.h presence" >&5
echo $ECHO_N "checking zlib.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <zlib.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: zlib.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: zlib.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: zlib.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: zlib.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: zlib.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: zlib.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: zlib.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: zlib.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: zlib.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: zlib.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: zlib.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: zlib.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: zlib.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: zlib.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: zlib.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: zlib.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ----------------------------------- ##
## Report this to chris_hormann@gmx.de ##
## ----------------------------------- ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for zlib.h" >&5
echo $ECHO_N "checking for zlib.h... $ECHO_C" >&6
if test "${ac_cv_header_zlib_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_zlib_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_zlib_h" >&5
echo "${ECHO_T}$ac_cv_header_zlib_h" >&6

fi
if test $ac_cv_header_zlib_h = yes; then

          # check library version, update LIBS
          echo "$as_me:$LINENO: checking for libz version >= $required_libz_version" >&5
echo $ECHO_N "checking for libz version >= $required_libz_version... $ECHO_C" >&6
          if test "$cross_compiling" = yes; then
  echo "$as_me:$LINENO: result: cross-compiling, forced" >&5
echo "${ECHO_T}cross-compiling, forced" >&6

else
  cat >conftest.$ac_ext <<_ACEOF

              /* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <stdio.h>
#include <string.h>
#include "zlib.h"
int main (void)
{
  const char *version = zlibVersion()
  ;
  fprintf (stderr, "%s\n", version);
  return ! (strcmp (version ? version : "", "$required_libz_version") >= 0);
}


_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then

              pov_check_lib_version=`eval $ac_try 2>&1`
              pov_check_lib="ok"
              echo "$as_me:$LINENO: result: $pov_check_lib_version, $pov_check_lib" >&5
echo "${ECHO_T}$pov_check_lib_version, $pov_check_lib" >&6

else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )

              if test "$ac_status" != "1" || ! test -s conftest$ac_exeext ; then
                pov_check_lib="unknown"
                echo "$as_me:$LINENO: result: $pov_check_lib" >&5
echo "${ECHO_T}$pov_check_lib" >&6
              else
                pov_check_lib_version=`eval $ac_try 2>&1`
                pov_check_lib="bad"
                echo "$as_me:$LINENO: result: $pov_check_lib_version, $pov_check_lib" >&5
echo "${ECHO_T}$pov_check_lib_version, $pov_check_lib" >&6
              fi

fi
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi  # AC_RUN_IFELSE

else
  pov_check_lib="no headers"

fi

  # AC_CHECK_HEADER

else
  pov_check_lib="not found"
fi
  # AC_SEARCH_LIBS

fi
if test x"$pov_check_lib" != x"ok"; then
  if test x"$enable_lib_checks" != x"no"; then
    { echo "$as_me:$LINENO: zlib will be built and statically linked to $PACKAGE_NAME" >&5
echo "$as_me: zlib will be built and statically linked to $PACKAGE_NAME" >&6;}
  fi


subdirs="$subdirs libraries/zlib"

  if test "$ac_cv_search_zlibVersion"; then
    LIBS=`echo $LIBS | sed s,$ac_cv_search_zlibVersion,,g`
  fi
  INCZ="-I\$(top_srcdir)/libraries/zlib"
  LIBZ="\$(top_builddir)/libraries/zlib/libz.a"
  export INCZ		# tell libpng and libtiff to use the provided zlib.
fi




# libpng, depends on libz
# if libz needs to be compiled, force compiling libpng as well
if test x"$pov_check_lib" = x"ok"; then
  if test x"$enable_lib_checks" != x"no"; then
    # check libpng and update ${pov_check_lib}

  # check the library
  echo "$as_me:$LINENO: checking for library containing png_get_libpng_ver" >&5
echo $ECHO_N "checking for library containing png_get_libpng_ver... $ECHO_C" >&6
if test "${ac_cv_search_png_get_libpng_ver+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_func_search_save_LIBS=$LIBS
ac_cv_search_png_get_libpng_ver=no
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char png_get_libpng_ver ();
int
main ()
{
png_get_libpng_ver ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_search_png_get_libpng_ver="none required"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
if test "$ac_cv_search_png_get_libpng_ver" = no; then
  for ac_lib in png12 png; do
    LIBS="-l$ac_lib
   $ac_func_search_save_LIBS"
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char png_get_libpng_ver ();
int
main ()
{
png_get_libpng_ver ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_search_png_get_libpng_ver="-l$ac_lib"
break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
  done
fi
LIBS=$ac_func_search_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_search_png_get_libpng_ver" >&5
echo "${ECHO_T}$ac_cv_search_png_get_libpng_ver" >&6
if test "$ac_cv_search_png_get_libpng_ver" != no; then
  test "$ac_cv_search_png_get_libpng_ver" = "none required" || LIBS="$ac_cv_search_png_get_libpng_ver $LIBS"

      # check include file
      if test "${ac_cv_header_png_h+set}" = set; then
  echo "$as_me:$LINENO: checking for png.h" >&5
echo $ECHO_N "checking for png.h... $ECHO_C" >&6
if test "${ac_cv_header_png_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_png_h" >&5
echo "${ECHO_T}$ac_cv_header_png_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking png.h usability" >&5
echo $ECHO_N "checking png.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <png.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking png.h presence" >&5
echo $ECHO_N "checking png.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <png.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: png.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: png.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: png.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: png.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: png.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: png.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: png.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: png.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: png.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: png.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: png.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: png.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: png.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: png.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: png.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: png.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ----------------------------------- ##
## Report this to chris_hormann@gmx.de ##
## ----------------------------------- ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for png.h" >&5
echo $ECHO_N "checking for png.h... $ECHO_C" >&6
if test "${ac_cv_header_png_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_png_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_png_h" >&5
echo "${ECHO_T}$ac_cv_header_png_h" >&6

fi
if test $ac_cv_header_png_h = yes; then

          # check library version, update LIBS
          echo "$as_me:$LINENO: checking for libpng version >= $required_libpng_version" >&5
echo $ECHO_N "checking for libpng version >= $required_libpng_version... $ECHO_C" >&6
          if test "$cross_compiling" = yes; then
  echo "$as_me:$LINENO: result: cross-compiling, forced" >&5
echo "${ECHO_T}cross-compiling, forced" >&6

else
  cat >conftest.$ac_ext <<_ACEOF

              /* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <stdio.h>
#include <string.h>
#include "png.h"
int main (void)
{
  const char *version = png_get_libpng_ver(NULL)
    ;
  fprintf (stderr, "%s\n", version);
  return ! (strcmp (version ? version : "", "$required_libpng_version") >= 0);
}


_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then

              pov_check_lib_version=`eval $ac_try 2>&1`
              pov_check_lib="ok"
              echo "$as_me:$LINENO: result: $pov_check_lib_version, $pov_check_lib" >&5
echo "${ECHO_T}$pov_check_lib_version, $pov_check_lib" >&6

else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )

              if test "$ac_status" != "1" || ! test -s conftest$ac_exeext ; then
                pov_check_lib="unknown"
                echo "$as_me:$LINENO: result: $pov_check_lib" >&5
echo "${ECHO_T}$pov_check_lib" >&6
              else
                pov_check_lib_version=`eval $ac_try 2>&1`
                pov_check_lib="bad"
                echo "$as_me:$LINENO: result: $pov_check_lib_version, $pov_check_lib" >&5
echo "${ECHO_T}$pov_check_lib_version, $pov_check_lib" >&6
              fi

fi
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi  # AC_RUN_IFELSE

else
  pov_check_lib="no headers"

fi

  # AC_CHECK_HEADER

else
  pov_check_lib="not found"
fi
  # AC_SEARCH_LIBS

  fi
elif test x"$enable_lib_checks" != x"no"; then
  echo "$as_me:$LINENO: checking for libpng" >&5
echo $ECHO_N "checking for libpng... $ECHO_C" >&6
  echo "$as_me:$LINENO: result: forced by libz" >&5
echo "${ECHO_T}forced by libz" >&6
fi
if test x"$pov_check_lib" != x"ok"; then
  if test x"$enable_lib_checks" != x"no"; then
    { echo "$as_me:$LINENO: libpng will be built and statically linked to $PACKAGE_NAME" >&5
echo "$as_me: libpng will be built and statically linked to $PACKAGE_NAME" >&6;}
  fi


subdirs="$subdirs libraries/png"

  if test "$ac_cv_search_png_get_libpng_ver"; then
    LIBS=`echo $LIBS | sed s,$ac_cv_search_png_get_libpng_ver,,g`
  fi
  INCPNG="-I\$(top_srcdir)/libraries/png"
  LIBPNG="\$(top_builddir)/libraries/png/libpng.a"
fi




# libjpeg
# always build it under cygwin which may use a custom jpeglib.h file
case "$host" in
  *cygwin*)
    echo "$as_me:$LINENO: checking for libjpeg" >&5
echo $ECHO_N "checking for libjpeg... $ECHO_C" >&6
    echo "$as_me:$LINENO: result: forced by cygwin" >&5
echo "${ECHO_T}forced by cygwin" >&6
  ;;

  *)
  if test x"$enable_lib_checks" != x"no"; then

  # check the library
  echo "$as_me:$LINENO: checking for library containing jpeg_std_error" >&5
echo $ECHO_N "checking for library containing jpeg_std_error... $ECHO_C" >&6
if test "${ac_cv_search_jpeg_std_error+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_func_search_save_LIBS=$LIBS
ac_cv_search_jpeg_std_error=no
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char jpeg_std_error ();
int
main ()
{
jpeg_std_error ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_search_jpeg_std_error="none required"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
if test "$ac_cv_search_jpeg_std_error" = no; then
  for ac_lib in jpeg; do
    LIBS="-l$ac_lib
   $ac_func_search_save_LIBS"
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char jpeg_std_error ();
int
main ()
{
jpeg_std_error ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_search_jpeg_std_error="-l$ac_lib"
break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
  done
fi
LIBS=$ac_func_search_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_search_jpeg_std_error" >&5
echo "${ECHO_T}$ac_cv_search_jpeg_std_error" >&6
if test "$ac_cv_search_jpeg_std_error" != no; then
  test "$ac_cv_search_jpeg_std_error" = "none required" || LIBS="$ac_cv_search_jpeg_std_error $LIBS"

      # check include file
      if test "${ac_cv_header_jpeglib_h+set}" = set; then
  echo "$as_me:$LINENO: checking for jpeglib.h" >&5
echo $ECHO_N "checking for jpeglib.h... $ECHO_C" >&6
if test "${ac_cv_header_jpeglib_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_jpeglib_h" >&5
echo "${ECHO_T}$ac_cv_header_jpeglib_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking jpeglib.h usability" >&5
echo $ECHO_N "checking jpeglib.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <jpeglib.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking jpeglib.h presence" >&5
echo $ECHO_N "checking jpeglib.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <jpeglib.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: jpeglib.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: jpeglib.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: jpeglib.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: jpeglib.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: jpeglib.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: jpeglib.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: jpeglib.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: jpeglib.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: jpeglib.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: jpeglib.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: jpeglib.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: jpeglib.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: jpeglib.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: jpeglib.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: jpeglib.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: jpeglib.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ----------------------------------- ##
## Report this to chris_hormann@gmx.de ##
## ----------------------------------- ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for jpeglib.h" >&5
echo $ECHO_N "checking for jpeglib.h... $ECHO_C" >&6
if test "${ac_cv_header_jpeglib_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_jpeglib_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_jpeglib_h" >&5
echo "${ECHO_T}$ac_cv_header_jpeglib_h" >&6

fi
if test $ac_cv_header_jpeglib_h = yes; then

          # check library version, update LIBS
          echo "$as_me:$LINENO: checking for libjpeg version >= $required_libjpeg_version" >&5
echo $ECHO_N "checking for libjpeg version >= $required_libjpeg_version... $ECHO_C" >&6
          if test "$cross_compiling" = yes; then
  echo "$as_me:$LINENO: result: cross-compiling, forced" >&5
echo "${ECHO_T}cross-compiling, forced" >&6

else
  cat >conftest.$ac_ext <<_ACEOF

              /* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <stdio.h>
#include <string.h>
#include "jpeglib.h"
int main (void)
{
  char ver_string[81];
  sprintf (ver_string, "%d", JPEG_LIB_VERSION);
  ver_string[1] = (ver_string[1] > '0') ? ver_string[1] + 48 : '\0';
  fprintf (stderr, "%s\n", ver_string);
  return ! (strcmp (ver_string, "$required_libjpeg_version") >= 0);
}


_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then

              pov_check_libjpeg_version=`eval $ac_try 2>&1`
              pov_check_libjpeg="ok"
              echo "$as_me:$LINENO: result: $pov_check_libjpeg_version, $pov_check_libjpeg" >&5
echo "${ECHO_T}$pov_check_libjpeg_version, $pov_check_libjpeg" >&6

else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )

              if test "$ac_status" != "1" || ! test -s conftest$ac_exeext ; then
                pov_check_libjpeg="unknown"
                echo "$as_me:$LINENO: result: $pov_check_libjpeg" >&5
echo "${ECHO_T}$pov_check_libjpeg" >&6
              else
                pov_check_libjpeg_version=`eval $ac_try 2>&1`
                pov_check_libjpeg="bad"
                echo "$as_me:$LINENO: result: $pov_check_libjpeg_version, $pov_check_libjpeg" >&5
echo "${ECHO_T}$pov_check_libjpeg_version, $pov_check_libjpeg" >&6
              fi

fi
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi  # AC_RUN_IFELSE

else
  pov_check_libjpeg="no headers"

fi

  # AC_CHECK_HEADER

else
  pov_check_libjpeg="not found"
fi
  # AC_SEARCH_LIBS

  fi
  ;;
esac
if test x"$pov_check_libjpeg" != x"ok"; then
  if test x"$enable_lib_checks" != x"no"; then
    { echo "$as_me:$LINENO: libjpeg will be built and statically linked to $PACKAGE_NAME" >&5
echo "$as_me: libjpeg will be built and statically linked to $PACKAGE_NAME" >&6;}
  fi


subdirs="$subdirs libraries/jpeg"

  if test "$ac_cv_search_jpeg_std_error"; then
    LIBS=`echo $LIBS | sed s,$ac_cv_search_jpeg_std_error,,g`
  fi
  INCJPEG="-I\$(top_srcdir)/libraries/jpeg"
  LIBJPEG="\$(top_builddir)/libraries/jpeg/libjpeg.a"
  export INCJPEG	# tell libtiff to use the provided jpeg library.
else
  # create jversion.h in builddir
  if ! test -d "./source"; then
    mkdir ./source
  fi
  echo "#define JVERSION \"${pov_check_libjpeg_version}\"" > ./source/jversion.h
fi




# libtiff, depends on libz and libjpeg
if test -z "$INCZ"  &&  test -z "$INCJPEG"; then
  if test x"$enable_lib_checks" != x"no"; then

  # check the library
  echo "$as_me:$LINENO: checking for library containing TIFFGetVersion" >&5
echo $ECHO_N "checking for library containing TIFFGetVersion... $ECHO_C" >&6
if test "${ac_cv_search_TIFFGetVersion+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_func_search_save_LIBS=$LIBS
ac_cv_search_TIFFGetVersion=no
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char TIFFGetVersion ();
int
main ()
{
TIFFGetVersion ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_search_TIFFGetVersion="none required"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
if test "$ac_cv_search_TIFFGetVersion" = no; then
  for ac_lib in tiff; do
    LIBS="-l$ac_lib
   $ac_func_search_save_LIBS"
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char TIFFGetVersion ();
int
main ()
{
TIFFGetVersion ();
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_search_TIFFGetVersion="-l$ac_lib"
break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.err conftest.$ac_objext \
      conftest$ac_exeext conftest.$ac_ext
  done
fi
LIBS=$ac_func_search_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_search_TIFFGetVersion" >&5
echo "${ECHO_T}$ac_cv_search_TIFFGetVersion" >&6
if test "$ac_cv_search_TIFFGetVersion" != no; then
  test "$ac_cv_search_TIFFGetVersion" = "none required" || LIBS="$ac_cv_search_TIFFGetVersion $LIBS"

      # check include file
      if test "${ac_cv_header_tiffio_h+set}" = set; then
  echo "$as_me:$LINENO: checking for tiffio.h" >&5
echo $ECHO_N "checking for tiffio.h... $ECHO_C" >&6
if test "${ac_cv_header_tiffio_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_tiffio_h" >&5
echo "${ECHO_T}$ac_cv_header_tiffio_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking tiffio.h usability" >&5
echo $ECHO_N "checking tiffio.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
$ac_includes_default
#include <tiffio.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
	 { ac_try='test -z "$ac_c_werror_flag"
			 || test ! -s conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; } &&
	 { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking tiffio.h presence" >&5
echo $ECHO_N "checking tiffio.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <tiffio.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
  yes:no: )
    { echo "$as_me:$LINENO: WARNING: tiffio.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: tiffio.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: tiffio.h: proceeding with the compiler's result" >&5
echo "$as_me: WARNING: tiffio.h: proceeding with the compiler's result" >&2;}
    ac_header_preproc=yes
    ;;
  no:yes:* )
    { echo "$as_me:$LINENO: WARNING: tiffio.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: tiffio.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: tiffio.h:     check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: tiffio.h:     check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: tiffio.h: see the Autoconf documentation" >&5
echo "$as_me: WARNING: tiffio.h: see the Autoconf documentation" >&2;}
    { echo "$as_me:$LINENO: WARNING: tiffio.h:     section \"Present But Cannot Be Compiled\"" >&5
echo "$as_me: WARNING: tiffio.h:     section \"Present But Cannot Be Compiled\"" >&2;}
    { echo "$as_me:$LINENO: WARNING: tiffio.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: tiffio.h: proceeding with the preprocessor's result" >&2;}
    { echo "$as_me:$LINENO: WARNING: tiffio.h: in the future, the compiler will take precedence" >&5
echo "$as_me: WARNING: tiffio.h: in the future, the compiler will take precedence" >&2;}
    (
      cat <<\_ASBOX
## ----------------------------------- ##
## Report this to chris_hormann@gmx.de ##
## ----------------------------------- ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for tiffio.h" >&5
echo $ECHO_N "checking for tiffio.h... $ECHO_C" >&6
if test "${ac_cv_header_tiffio_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_tiffio_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_tiffio_h" >&5
echo "${ECHO_T}$ac_cv_header_tiffio_h" >&6

fi
if test $ac_cv_header_tiffio_h = yes; then

          # check library version, update LIBS
          echo "$as_me:$LINENO: checking for libtiff version >= $required_libtiff_version" >&5
echo $ECHO_N "checking for libtiff version >= $required_libtiff_version... $ECHO_C" >&6
          if test "$cross_compiling" = yes; then
  echo "$as_me:$LINENO: result: cross-compiling, forced" >&5
echo "${ECHO_T}cross-compiling, forced" >&6

else
  cat >conftest.$ac_ext <<_ACEOF

              /* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <stdio.h>
#include <string.h>
#include "tiffio.h"
int main (void)
{
  char version[81];
  char *p, *c;
  sprintf (version, "%.79s", TIFFGetVersion ());
  p = strstr (version, "Version ") + strlen ("Version ");
  if (! p)  return 1;
  c = strchr (p, '\n');
  if (! c)  return 1;
  *c = '\0';
  fprintf (stderr, "%s\n", p);
  return ! (strcmp (p, "$required_libtiff_version") >= 0);
}


_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then

              pov_check_libtiff_version=`eval $ac_try 2>&1`
              pov_check_libtiff="ok"
              echo "$as_me:$LINENO: result: $pov_check_libtiff_version, $pov_check_libtiff" >&5
echo "${ECHO_T}$pov_check_libtiff_version, $pov_check_libtiff" >&6

else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )

              if test "$ac_status" != "1" || ! test -s conftest$ac_exeext ; then
                pov_check_libtiff="unknown"
                echo "$as_me:$LINENO: result: $pov_check_libtiff" >&5
echo "${ECHO_T}$pov_check_libtiff" >&6
              else
                pov_check_libtiff_version=`eval $ac_try 2>&1`
                pov_check_libtiff="bad"
                echo "$as_me:$LINENO: result: $pov_check_libtiff_version, $pov_check_libtiff" >&5
echo "${ECHO_T}$pov_check_libtiff_version, $pov_check_libtiff" >&6
              fi

fi
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi  # AC_RUN_IFELSE

else
  pov_check_libtiff="no headers"

fi

  # AC_CHECK_HEADER

else
  pov_check_libtiff="not found"
fi
  # AC_SEARCH_LIBS

  fi
elif test x"$enable_lib_checks" != x"no"; then
  echo "$as_me:$LINENO: checking for libtiff" >&5
echo $ECHO_N "checking for libtiff... $ECHO_C" >&6
  if test "$INCZ"; then
    echo "$as_me:$LINENO: result: forced by libz" >&5
echo "${ECHO_T}forced by libz" >&6
  else
    echo "$as_me:$LINENO: result: forced by libjpeg" >&5
echo "${ECHO_T}forced by libjpeg" >&6
  fi
fi
if test x"$pov_check_libtiff" != x"ok"; then
  if test x"$enable_lib_checks" != x"no"; then
    { echo "$as_me:$LINENO: libtiff will be built and statically linked to $PACKAGE_NAME" >&5
echo "$as_me: libtiff will be built and statically linked to $PACKAGE_NAME" >&6;}
  fi


subdirs="$subdirs libraries/tiff/libtiff"

  if test "$ac_cv_search_TIFFGetVersion"; then
    LIBS=`echo $LIBS | sed s,$ac_cv_search_TIFFGetVersion,,g`
  fi
  INCTIFF="-I\$(top_srcdir)/libraries/tiff/libtiff -I\$(top_builddir)/libraries/tiff/libtiff"
  LIBTIFF="\$(top_builddir)/libraries/tiff/libtiff/libtiff.a"
fi




# Revert to previous compiler (C++).
ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



# Restore initial compiler flags.
CFLAGS="$pov_lib_save_cflags"
CXXFLAGS="$pov_lib_save_cxxflags"


###############################################################################

echo "$as_me:$LINENO: result:
Compiling
---------" >&5
echo "${ECHO_T}
Compiling
---------" >&6

# Start with no flags at all, so back them up first.
pov_save_cflags="$CFLAGS"
pov_save_cxxflags="$CXXFLAGS"
CFLAGS=
CXXFLAGS=


# Use pipes for communication between compilation stages.
echo "$as_me:$LINENO: checking whether to enable pipes for communications" >&5
echo $ECHO_N "checking whether to enable pipes for communications... $ECHO_C" >&6
if test x"$enable_pipe" = x"no"; then
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
  pov_flags="-pipe"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi

  else
    :
  fi

fi


# Language.

# don't use -ansi since it can make compilation fail (e.g. on cygwin).
#POV_PROG_CXX_FLAGS([-ansi], [], [POV_PROG_CXX_FLAGS([-Aa])])

# -w would prevent all warning messages, even if -W... is given later on.
# we don't want to clutter the compiling with lots of warnings.
#POV_PROG_CXX_FLAGS([-W])
#POV_PROG_CXX_FLAGS([-Wall], [], [POV_PROG_CXX_FLAGS([-fullwarn])])



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo -Wno-multichar | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo -Wno-multichar | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts -Wno-multichar" >&5
echo $ECHO_N "checking whether $CXX accepts -Wno-multichar... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c -Wno-multichar conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS -Wno-multichar"
    :
  else
    :
  fi



# I/O restrictions.
echo "$as_me:$LINENO: checking whether to enable I/O restrictions" >&5
echo $ECHO_N "checking whether to enable I/O restrictions... $ECHO_C" >&6
if test x"$enable_io_restrictions" = x"no"; then
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6

cat >>confdefs.h <<\_ACEOF
#define IO_RESTRICTIONS_DISABLED 1
_ACEOF

else
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6

cat >>confdefs.h <<\_ACEOF
#define IO_RESTRICTIONS_DISABLED 0
_ACEOF

fi


# Compile with debugging code.

echo "$as_me:$LINENO: checking whether to enable debugging" >&5
echo $ECHO_N "checking whether to enable debugging... $ECHO_C" >&6

if test x"$enable_debug" = x"yes"; then
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
  pov_flags="-g"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi
  else
    { echo "$as_me:$LINENO: WARNING: Cannot set debugging mode" >&5
echo "$as_me: WARNING: Cannot set debugging mode" >&2;}

  fi


cat >>confdefs.h <<\_ACEOF
#define MEM_STATS 2
_ACEOF


cat >>confdefs.h <<\_ACEOF
#define MEM_TRACE
_ACEOF


cat >>confdefs.h <<\_ACEOF
#define MEM_GUARD
_ACEOF


cat >>confdefs.h <<\_ACEOF
#define MEM_TAG
_ACEOF

else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6

cat >>confdefs.h <<\_ACEOF
#define MEM_STATS 1
_ACEOF

fi


# Compile for profiling.

echo "$as_me:$LINENO: checking whether to enable profiling" >&5
echo $ECHO_N "checking whether to enable profiling... $ECHO_C" >&6

if test x"$enable_profile" = x"yes"; then
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
  if test -z "$pov_cv_prog_cxx_flags_g"; then
    pov_flags="-g"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi
  else
    { echo "$as_me:$LINENO: WARNING: Cannot set debugging mode" >&5
echo "$as_me: WARNING: Cannot set debugging mode" >&2;}

  fi

  fi
  pov_flags="-pg"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi
  else
    { echo "$as_me:$LINENO: WARNING: Cannot set profiling mode" >&5
echo "$as_me: WARNING: Cannot set profiling mode" >&2;}

  fi

else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi


# Strip object files.

echo "$as_me:$LINENO: checking whether to enable stripping" >&5
echo $ECHO_N "checking whether to enable stripping... $ECHO_C" >&6

if test x"$enable_strip" = x"no"; then
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
  if test x"$enable_debug" = x"yes" || test x"$enable_profile" = x"yes"; then
    echo "$as_me:$LINENO: result: no, debugging/profiling mode is on" >&5
echo "${ECHO_T}no, debugging/profiling mode is on" >&6
  else
    echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
    pov_flags="-s"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi
  else
    { echo "$as_me:$LINENO: WARNING: Cannot set stripping mode" >&5
echo "$as_me: WARNING: Cannot set stripping mode" >&2;}

  fi

  fi
fi


# Compile with optimizations.

echo "$as_me:$LINENO: checking whether to enable optimizations" >&5
echo $ECHO_N "checking whether to enable optimizations... $ECHO_C" >&6

if test x"$enable_optimiz" != x"no"; then

  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6

  # don't try -fast (makes ICC fail when linking due to implied -ipo flag).
  pov_flags="-O3"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi
  else

      pov_flags="-O2"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi
  else

          pov_flags="-O"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi

  else
    :
  fi



  fi



  fi


  # compiler specific flags.
  case "$pov_prog_cxx" in
    *g++*)  # gcc
      pov_cxx="gcc"
      if test x"$pov_cv_prog_cxx_flags_O" = x"yes"; then  # -O was set
        for pov_flags in "-fexpensive-optimizations" "-finline-functions" "-foptimize-sibling-calls"; do



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi

  else
    :
  fi

        done
      elif test x"$pov_cv_prog_cxx_flags_O2" = x"yes"; then  # -O2 was set
        pov_flags="-finline-functions"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi

  else
    :
  fi

      fi
      for pov_flags in "-ffast-math" "-malign-double" "-minline-all-stringops"; do



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi

  else
    :
  fi

      done
      ;;

    *icpc*|*icc*)  # icc
      pov_cxx="icc"
      pov_flags="-ip"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi

  else
    :
  fi

      ;;
  esac

  # Arch-specific tuning, alphabetically ordered for conveniency.
  # Perform checks only when not cross-compiling.
  if test x"$cross_compiling" != x"yes"; then
  case "$host" in

    alphaev*6*)
      ### Suggested by Christopher Endsley <endsley@yokuts.csustan.edu> .
      for pov_flags in "-mcpu=ev56" "-mno-soft-float"; do



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi

  else
    :
  fi

      done
      ;;

    i?86-* | k?-* | *86*64*)
      # head is used to handle SMP/HT systems
      # check whether 'head -n 1' is supported; otherwise use older 'head -1'
      if test -z "`head -n 1 /dev/null 2>&1`"; then
        head_1='head -n 1'
      else
        head_1='head -1'
      fi

      # check from machine info; currently Linux and FreeBSD
      if test -r /proc/cpuinfo ; then  # Linux
        pov_cpuinfo=/proc/cpuinfo
      elif test -r /compat/linux/proc/cpuinfo ; then # FreeBSD using linprocfs
        pov_cpuinfo=/compat/linux/proc/cpuinfo
      elif test "`dmesg 2> /dev/null`"; then  # FreeBSD 4.9 at least
        pov_modelname=`dmesg | grep CPU | $head_1 | cut -d: -f2 | tr A-Z a-z`
        pov_cpuflags=`dmesg | grep Features | $head_1 | cut -d'<' -f2 | sed 's/,>/ /g' | tr A-Z a-z`
        pov_vendorid=`dmesg | grep Origin | $head_1 | cut -d'"' -f2`
      fi

      if test "$pov_cpuinfo"; then
        pov_modelname=`cat $pov_cpuinfo | grep 'model name' | $head_1 | cut -d: -f2 | tr A-Z a-z`
        pov_cpuflags=`cat $pov_cpuinfo | grep flags | $head_1 | cut -d: -f2`
        pov_cpuflags=`echo $pov_cpuflags`  # remove leading/trailing blanks
        pov_vendorid=`cat $pov_cpuinfo | grep vendor_id | $head_1 | cut -d: -f2`
        pov_vendorid=`echo $pov_vendorid`
      fi

      # cpu model
      pov_cpumodel=${pov_modelname:-`uname -p 2> /dev/null`}
      pov_cpumodel=`echo $pov_cpumodel | sed -e 's,mobile,,g' -e 's,\([.[:alnum:]]*hz\),,g'`

      # log values
      { ac_try='echo pov_cpuinfo   = $pov_cpuinfo   > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='echo pov_modelname = $pov_modelname > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='echo pov_cpumodel  = $pov_cpumodel  > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='echo pov_vendorid  = $pov_vendorid  > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='echo pov_cpuflags  = $pov_cpuflags  > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }

      for flag in $pov_cpuflags ; do
        case "$flag" in
          sse)  pov_flags_has_sse="yes";;   # sse
          sse?) pov_flags_has_sse2="yes";;  # sse2, sse3
        esac
      done
      if test x"$pov_cxx" = x"gcc"; then   # gcc only
        if test "$pov_flags_has_sse"; then
          for pov_flags in "-m$flag" "-mfpmath=$flag"; do



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi

  else
    :
  fi

          done
        fi
        if test "$pov_flags_has_sse2"; then
          pov_flags="-m$flag"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi

  else
    :
  fi

        fi
      fi

      if test -z "$pov_arch"; then
        case "$host" in
          i486-*)                  pov_arch="i486";;
          i586-*)                  pov_arch="pentium";;  # for GCC / ICC
          i686-*|i386-*)  # FreeBSD seems to only report i386
            case "$pov_cpumodel" in
              # Intel
              *pentium*4*|*xeon*)  pov_arch="pentium4";;  # for GCC / ICC
              *pentium*mmx*)       pov_arch="pentium";;   # catch this first
              *pentium*m*|*celeron*m*)
                if test x"$pov_cxx" = x"icc"; then
                  pov_arch="pentium4"
                else
                  pov_arch="pentium-m"
                fi
                ;;
              *pentium*iii*|*celeron*)
                if test x"$pov_flags_has_sse2" = x"yes"; then
                  pov_arch="pentium4"  # for GCC / ICC with newer celerons
                else
                  if test x"$pov_cxx" = x"icc"; then
                    pov_arch="pentiumiii"
                    pov_tune="pentiumpro"
                  else
                    pov_arch="pentium3"
                  fi
                fi
                ;;
              *pentium*ii*)
                if test x"$pov_cxx" = x"icc"; then
                  pov_arch="pentiumii"
                  pov_tune="pentiumpro"
                else
                  pov_arch="pentium2"
                fi
                ;;
              *pentium*pro*)       pov_arch="pentiumpro";;  # for GCC / ICC
              *pentium*)           pov_arch="pentium";;     # for GCC / ICC
              # AMD, flags are for GCC only
              *athlon*xp*)         pov_arch="athlon-xp";;
              *athlon*mp*)         pov_arch="athlon-mp";;
              *sempron*)           pov_arch="athlon-xp";;  # 3100+ is k8-based but w/o AMD64 ISA instructions
              *athlon*|*duron*)    pov_arch="athlon";;
              # others
              *)                   pov_arch="i686";;  # don't support true i386
            esac
            pov_arch_fallback="i686"
            ;;
          k6-*)           pov_arch="k6"; pov_arch_fallback="i686";;
          k7-*)           pov_arch="k7"; pov_arch_fallback="i686";;
          k8-*|x86_64-*)  pov_arch="k8"; pov_arch_fallback="i686";;
          *)              pov_arch="unknown";;
        esac
      fi

      if test x"$pov_arch" != x"unknown"; then
        # pentium4 with icc
        if test x"$pov_arch" = x"pentium4" && test x"$pov_cxx" = x"icc"; then
          pov_flags="-xP"          # Prescott



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi
  else

              pov_flags="-xN"      # Northwood



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi
  else

                  pov_flags="-xW"  # Willamette



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi

  else
    :
  fi



  fi



  fi

        else
          pov_flags="-march=$pov_arch"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo -march=$pov_arch | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo -march=$pov_arch | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts -march=$pov_arch" >&5
echo $ECHO_N "checking whether $CC accepts -march=$pov_arch... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c -march=$pov_arch conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS -march=$pov_arch"
    :
  else
    :
  fi
 } fi
  else

              if test "$pov_arch_fallback"; then
                {
                  pov_flags="-march=$pov_arch_fallback"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"

                      if test "$subdirs"; then
                        {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }
                      fi
                      pov_arch=$pov_arch_fallback

  else
    pov_arch=

  fi

                }
              fi


  fi

        fi

        pov_tune=${pov_tune:-$pov_arch}  # assign $pov_arch if unset
        if test "$pov_tune"; then
          pov_flags="-mtune=$pov_tune"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 } fi
  else

              pov_flags="-mcpu=$pov_tune"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 } fi

  else
    :
  fi



  fi

        fi
      fi  # pov_arch not unknown
      ;;

    *irix*)
      pov_flags="-mips4"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi
  else

          pov_flags="-mips2"



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi

  else
    :
  fi



  fi

      ;;

    powerpc*)
      ### Suggested by Thorsten Froehlich <thorsten@trf.de> :
      # Note that the different parameters for mcpu and mtune are intentional:
      # The PPC 7450 processor has a much longer pipeline and thus scheduling
      # for that pipeline always yields good results even on processors with
      # a shorter pipeline.  On the other hand, most PowerPC processors only
      # support the instructions also found in the PPC 750 processor (aka G3).
      # That is why it is selected in the mcpu parameter.  Using 7450 (aka G4+)
      # in mcpu would make the code incompatible with anything prior to the
      # PPC 7400 (aka G4).  To be precise, the vector instructions are new
      # in the four digit model number PowerPC processors (aka G4), but gcc
      # cannot (as of February 2003) use them automatically anyway! [trf]
      for pov_flags in "-mpowerpc" "-mcpu=750 -mtune=7450" "-mmultiple" "-mstring" "-mfused-madd"; do



  # Create a unique cache-id name (multiple flags are handled).
  pov_prog_cxx_flags_var=pov_cv_prog_cxx_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`

  # Create the extended regular expression to handle multiple flags.
  # For instance, "-first-flag -second-flag -X" gives the regexp:
  #   "\-f|irst-flag|\-s|econd-flag|\-X|X"
  #
  # FreeBSD and Darwin seem to have a problem with the \+ sed construct
  # (but apparently not with the \{x,y\} one).  For safety, I prefer to
  # use  [[:space:]][[:space:]]*  for  [[:space:]]\+
  pov_prog_cxx_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  # Cannot use AC_CACHE_CHECK due to the nature of the cache-id variable.
  echo "$as_me:$LINENO: checking whether $CXX accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CXX accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cxx_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      # Create a conftest file for CXX.
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF

      # Compile with $CXX and inspect standard error for given flags.
      { ac_try='$CXX -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CXX -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cxx_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      # the command above seems to not always return the correct status, so
      # for safety I rerun it here; I keep the other one for logging purpose.
      pov_prog_cxx_flags_err=`$ac_cv_prog_egrep "$pov_prog_cxx_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cxx_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cxx_flags_var=yes"
      else
        eval "$pov_prog_cxx_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cxx_flags_value=\$$pov_prog_cxx_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cxx_flags_value" >&5
echo "${ECHO_T}$pov_prog_cxx_flags_value" >&6

  # Update CXXFLAGS when flags are working, and run provided actions.
  if test x"$pov_prog_cxx_flags_value" = x"yes"; then
    CXXFLAGS="$CXXFLAGS $pov_flags"
    if test "$subdirs"; then {


  pov_prog_cc_flags_var=pov_cv_prog_cc_flags`echo $pov_flags | sed 's,[^a-zA-Z0-9],_,g'`
  pov_prog_cc_flags_regexp=`echo $pov_flags | sed 's,\(-.\)\([^[:space:]]*\),\\\\\1|\2,g; s,[[:space:]][[:space:]]*,|,g; s,\(.\)||,\1|\1|,g; s,\(.\)|$,\1|\1,'`

  echo "$as_me:$LINENO: checking whether $CC accepts $pov_flags" >&5
echo $ECHO_N "checking whether $CC accepts $pov_flags... $ECHO_C" >&6
  if eval "test \"\${$pov_prog_cc_flags_var+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else

      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

      cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
      { ac_try='$CC -c conftest.$ac_ext > /dev/null 2> conftest.err0'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$CC -c $pov_flags conftest.$ac_ext > /dev/null 2> conftest.err'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='cat conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      { ac_try='$ac_cv_prog_egrep \"$pov_prog_cc_flags_regexp\" conftest.err 2>&1 > /dev/null'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      pov_prog_cc_flags_err=`$ac_cv_prog_egrep "$pov_prog_cc_flags_regexp" conftest.err`
      { ac_try='diff conftest.err0 conftest.err >&5'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }
      if test -z "$pov_prog_cc_flags_err" \
      || test -z "`diff conftest.err0 conftest.err`"; then
        eval "$pov_prog_cc_flags_var=yes"
      else
        eval "$pov_prog_cc_flags_var=no"
      fi

      rm -f conftest.$ac_ext conftest.$ac_objext conftest.err conftest.err0
      ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



fi

  eval "pov_prog_cc_flags_value=\$$pov_prog_cc_flags_var"
  echo "$as_me:$LINENO: result: $pov_prog_cc_flags_value" >&5
echo "${ECHO_T}$pov_prog_cc_flags_value" >&6

  if test x"$pov_prog_cc_flags_value" = x"yes"; then
    CFLAGS="$CFLAGS $pov_flags"
    :
  else
    :
  fi
 }; fi

  else
    :
  fi

      done
      ;;

    sparc-*)
      # Commented out for now.
      #POV_PROG_CXX_FLAGS([-march=ultrasparc])
      #POV_PROG_CXX_FLAGS([-mvis])
      ;;

  esac
  fi  # not cross-compiling

else

  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6

fi


# Add flags specified at the command line.
CXXFLAGS="$CXXFLAGS $pov_save_cxxflags"

cat >>confdefs.h <<_ACEOF
#define CXXFLAGS "$CXXFLAGS"
_ACEOF


# Flags for supporting libraries.
CFLAGS="$CFLAGS $pov_save_cflags"
export CFLAGS CPPFLAGS LDFLAGS


###############################################################################

echo "$as_me:$LINENO: result:
Makefiles
---------" >&5
echo "${ECHO_T}
Makefiles
---------" >&6

# Supporting libraries to be included in the compilation/linking process.

if test "$LIBZ"; then
  POVLIBS="zlib"
fi
if test "$LIBPNG"; then
  POVLIBS="$POVLIBS png"
fi
if test "$LIBJPEG"; then
  POVLIBS="$POVLIBS jpeg"
fi
# Does not compile all in tiff/ but only the library itself.
if test "$LIBTIFF"; then
  POVLIBS="$POVLIBS tiff/libtiff"
fi

                                                                      ac_config_files="$ac_config_files Makefile libraries/Makefile source/base/Makefile source/frontend/Makefile source/patches/Makefile source/Makefile unix/Makefile"



###############################################################################

if test "$subdirs"; then
            ac_config_commands="$ac_config_commands config.log"

fi
cat >confcache <<\_ACEOF
# This file is a shell script that caches the results of configure
# tests run on this system so they can be shared between configure
# scripts and configure runs, see configure's option --config-cache.
# It is not useful on other systems.  If it contains results you don't
# want to keep, you may remove or edit it.
#
# config.status only pays attention to the cache file if you give it
# the --recheck option to rerun configure.
#
# `ac_cv_env_foo' variables (set or unset) will be overridden when
# loading this file, other *unset* `ac_cv_foo' will be assigned the
# following values.

_ACEOF

# The following way of writing the cache mishandles newlines in values,
# but we know of no workaround that is simple, portable, and efficient.
# So, don't put newlines in cache variables' values.
# Ultrix sh set writes to stderr and can't be redirected directly,
# and sets the high bit in the cache file unless we assign to the vars.
{
  (set) 2>&1 |
    case `(ac_space=' '; set | grep ac_space) 2>&1` in
    *ac_space=\ *)
      # `set' does not quote correctly, so add quotes (double-quote
      # substitution turns \\\\ into \\, and sed turns \\ into \).
      sed -n \
	"s/'/'\\\\''/g;
	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
      ;;
    *)
      # `set' quotes correctly as required by POSIX, so do not add quotes.
      sed -n \
	"s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
      ;;
    esac;
} |
  sed '
     t clear
     : clear
     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
     t end
     /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
     : end' >>confcache
if diff $cache_file confcache >/dev/null 2>&1; then :; else
  if test -w $cache_file; then
    test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file"
    cat confcache >$cache_file
  else
    echo "not updating unwritable cache $cache_file"
  fi
fi
rm -f confcache

test "x$prefix" = xNONE && prefix=$ac_default_prefix
# Let make expand exec_prefix.
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'

# VPATH may cause trouble with some makes, so we remove $(srcdir),
# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and
# trailing colons and then remove the whole line if VPATH becomes empty
# (actually we leave an empty line to preserve line numbers).
if test "x$srcdir" = x.; then
  ac_vpsub='/^[	 ]*VPATH[	 ]*=/{
s/:*\$(srcdir):*/:/;
s/:*\${srcdir}:*/:/;
s/:*@srcdir@:*/:/;
s/^\([^=]*=[	 ]*\):*/\1/;
s/:*$//;
s/^[^=]*=[	 ]*$//;
}'
fi

DEFS=-DHAVE_CONFIG_H

ac_libobjs=
ac_ltlibobjs=
for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
  # 1. Remove the extension, and $U if already installed.
  ac_i=`echo "$ac_i" |
	 sed 's/\$U\././;s/\.o$//;s/\.obj$//'`
  # 2. Add them.
  ac_libobjs="$ac_libobjs $ac_i\$U.$ac_objext"
  ac_ltlibobjs="$ac_ltlibobjs $ac_i"'$U.lo'
done
LIBOBJS=$ac_libobjs

LTLIBOBJS=$ac_ltlibobjs


if test -z "${MAINTAINER_MODE_TRUE}" && test -z "${MAINTAINER_MODE_FALSE}"; then
  { { echo "$as_me:$LINENO: error: conditional \"MAINTAINER_MODE\" was never defined.
Usually this means the macro was only invoked conditionally." >&5
echo "$as_me: error: conditional \"MAINTAINER_MODE\" was never defined.
Usually this means the macro was only invoked conditionally." >&2;}
   { (exit 1); exit 1; }; }
fi
if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
  { { echo "$as_me:$LINENO: error: conditional \"AMDEP\" was never defined.
Usually this means the macro was only invoked conditionally." >&5
echo "$as_me: error: conditional \"AMDEP\" was never defined.
Usually this means the macro was only invoked conditionally." >&2;}
   { (exit 1); exit 1; }; }
fi
if test -z "${am__fastdepCXX_TRUE}" && test -z "${am__fastdepCXX_FALSE}"; then
  { { echo "$as_me:$LINENO: error: conditional \"am__fastdepCXX\" was never defined.
Usually this means the macro was only invoked conditionally." >&5
echo "$as_me: error: conditional \"am__fastdepCXX\" was never defined.
Usually this means the macro was only invoked conditionally." >&2;}
   { (exit 1); exit 1; }; }
fi
if test -z "${am__fastdepCXX_TRUE}" && test -z "${am__fastdepCXX_FALSE}"; then
  { { echo "$as_me:$LINENO: error: conditional \"am__fastdepCXX\" was never defined.
Usually this means the macro was only invoked conditionally." >&5
echo "$as_me: error: conditional \"am__fastdepCXX\" was never defined.
Usually this means the macro was only invoked conditionally." >&2;}
   { (exit 1); exit 1; }; }
fi
if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
  { { echo "$as_me:$LINENO: error: conditional \"am__fastdepCC\" was never defined.
Usually this means the macro was only invoked conditionally." >&5
echo "$as_me: error: conditional \"am__fastdepCC\" was never defined.
Usually this means the macro was only invoked conditionally." >&2;}
   { (exit 1); exit 1; }; }
fi

: ${CONFIG_STATUS=./config.status}
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files $CONFIG_STATUS"
{ echo "$as_me:$LINENO: creating $CONFIG_STATUS" >&5
echo "$as_me: creating $CONFIG_STATUS" >&6;}
cat >$CONFIG_STATUS <<_ACEOF
#! $SHELL
# Generated by $as_me.
# Run this file to recreate the current configuration.
# Compiler output produced by configure, useful for debugging
# configure, is in config.log if it exists.

debug=false
ac_cs_recheck=false
ac_cs_silent=false
SHELL=\${CONFIG_SHELL-$SHELL}
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF
## --------------------- ##
## M4sh Initialization.  ##
## --------------------- ##

# Be Bourne compatible
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
  emulate sh
  NULLCMD=:
  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
  set -o posix
fi
DUALCASE=1; export DUALCASE # for MKS sh

# Support unset when possible.
if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
  as_unset=unset
else
  as_unset=false
fi


# Work around bugs in pre-3.0 UWIN ksh.
$as_unset ENV MAIL MAILPATH
PS1='$ '
PS2='> '
PS4='+ '

# NLS nuisances.
for as_var in \
  LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
  LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
  LC_TELEPHONE LC_TIME
do
  if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
    eval $as_var=C; export $as_var
  else
    $as_unset $as_var
  fi
done

# Required to use basename.
if expr a : '\(a\)' >/dev/null 2>&1; then
  as_expr=expr
else
  as_expr=false
fi

if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi


# Name of the executable.
as_me=`$as_basename "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)$' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
  	  /^X\/\(\/\/\)$/{ s//\1/; q; }
  	  /^X\/\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`


# PATH needs CR, and LINENO needs CR and PATH.
# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits

# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
  echo "#! /bin/sh" >conf$$.sh
  echo  "exit 0"   >>conf$$.sh
  chmod +x conf$$.sh
  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
    PATH_SEPARATOR=';'
  else
    PATH_SEPARATOR=:
  fi
  rm -f conf$$.sh
fi


  as_lineno_1=$LINENO
  as_lineno_2=$LINENO
  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
  test "x$as_lineno_1" != "x$as_lineno_2" &&
  test "x$as_lineno_3"  = "x$as_lineno_2"  || {
  # Find who we are.  Look in the path if we contain no path at all
  # relative or not.
  case $0 in
    *[\\/]* ) as_myself=$0 ;;
    *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
done

       ;;
  esac
  # We did not find ourselves, most probably we were run as `sh COMMAND'
  # in which case we are not to be found in the path.
  if test "x$as_myself" = x; then
    as_myself=$0
  fi
  if test ! -f "$as_myself"; then
    { { echo "$as_me:$LINENO: error: cannot find myself; rerun with an absolute path" >&5
echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2;}
   { (exit 1); exit 1; }; }
  fi
  case $CONFIG_SHELL in
  '')
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for as_base in sh bash ksh sh5; do
	 case $as_dir in
	 /*)
	   if ("$as_dir/$as_base" -c '
  as_lineno_1=$LINENO
  as_lineno_2=$LINENO
  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
  test "x$as_lineno_1" != "x$as_lineno_2" &&
  test "x$as_lineno_3"  = "x$as_lineno_2" ') 2>/dev/null; then
	     $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
	     $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
	     CONFIG_SHELL=$as_dir/$as_base
	     export CONFIG_SHELL
	     exec "$CONFIG_SHELL" "$0" ${1+"$@"}
	   fi;;
	 esac
       done
done
;;
  esac

  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
  # uniformly replaced by the line number.  The first 'sed' inserts a
  # line-number line before each line; the second 'sed' does the real
  # work.  The second script uses 'N' to pair each line-number line
  # with the numbered line, and appends trailing '-' during
  # substitution so that $LINENO is not a special case at line end.
  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
  # second 'sed' script.  Blame Lee E. McMahon for sed's syntax.  :-)
  sed '=' <$as_myself |
    sed '
      N
      s,$,-,
      : loop
      s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
      t loop
      s,-$,,
      s,^['$as_cr_digits']*\n,,
    ' >$as_me.lineno &&
  chmod +x $as_me.lineno ||
    { { echo "$as_me:$LINENO: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&5
echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2;}
   { (exit 1); exit 1; }; }

  # Don't try to exec as it changes $[0], causing all sort of problems
  # (the dirname of $[0] is not the place where we might find the
  # original and so on.  Autoconf is especially sensible to this).
  . ./$as_me.lineno
  # Exit status is that of the last command.
  exit
}


case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
  *c*,-n*) ECHO_N= ECHO_C='
' ECHO_T='	' ;;
  *c*,*  ) ECHO_N=-n ECHO_C= ECHO_T= ;;
  *)       ECHO_N= ECHO_C='\c' ECHO_T= ;;
esac

if expr a : '\(a\)' >/dev/null 2>&1; then
  as_expr=expr
else
  as_expr=false
fi

rm -f conf$$ conf$$.exe conf$$.file
echo >conf$$.file
if ln -s conf$$.file conf$$ 2>/dev/null; then
  # We could just check for DJGPP; but this test a) works b) is more generic
  # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
  if test -f conf$$.exe; then
    # Don't use ln at all; we don't have any links
    as_ln_s='cp -p'
  else
    as_ln_s='ln -s'
  fi
elif ln conf$$.file conf$$ 2>/dev/null; then
  as_ln_s=ln
else
  as_ln_s='cp -p'
fi
rm -f conf$$ conf$$.exe conf$$.file

if mkdir -p . 2>/dev/null; then
  as_mkdir_p=:
else
  test -d ./-p && rmdir ./-p
  as_mkdir_p=false
fi

as_executable_p="test -f"

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"


# IFS
# We need space, tab and new line, in precisely that order.
as_nl='
'
IFS=" 	$as_nl"

# CDPATH.
$as_unset CDPATH

exec 6>&1

# Open the log real soon, to keep \$[0] and so on meaningful, and to
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.  Logging --version etc. is OK.
exec 5>>config.log
{
  echo
  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
## Running $as_me. ##
_ASBOX
} >&5
cat >&5 <<_CSEOF

This file was extended by MegaPOV $as_me 1.2, which was
generated by GNU Autoconf 2.59.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
  CONFIG_HEADERS  = $CONFIG_HEADERS
  CONFIG_LINKS    = $CONFIG_LINKS
  CONFIG_COMMANDS = $CONFIG_COMMANDS
  $ $0 $@

_CSEOF
echo "on `(hostname || uname -n) 2>/dev/null | sed 1q`" >&5
echo >&5
_ACEOF

# Files that config.status was made for.
if test -n "$ac_config_files"; then
  echo "config_files=\"$ac_config_files\"" >>$CONFIG_STATUS
fi

if test -n "$ac_config_headers"; then
  echo "config_headers=\"$ac_config_headers\"" >>$CONFIG_STATUS
fi

if test -n "$ac_config_links"; then
  echo "config_links=\"$ac_config_links\"" >>$CONFIG_STATUS
fi

if test -n "$ac_config_commands"; then
  echo "config_commands=\"$ac_config_commands\"" >>$CONFIG_STATUS
fi

cat >>$CONFIG_STATUS <<\_ACEOF

ac_cs_usage="\
\`$as_me' instantiates files from templates according to the
current configuration.

Usage: $0 [OPTIONS] [FILE]...

  -h, --help       print this help, then exit
  -V, --version    print version number, then exit
  -q, --quiet      do not print progress messages
  -d, --debug      don't remove temporary files
      --recheck    update $as_me by reconfiguring in the same conditions
  --file=FILE[:TEMPLATE]
		   instantiate the configuration file FILE
  --header=FILE[:TEMPLATE]
		   instantiate the configuration header FILE

Configuration files:
$config_files

Configuration headers:
$config_headers

Configuration commands:
$config_commands

Report bugs to <bug-autoconf@gnu.org>."
_ACEOF

cat >>$CONFIG_STATUS <<_ACEOF
ac_cs_version="\\
MegaPOV config.status 1.2
configured by $0, generated by GNU Autoconf 2.59,
  with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"

Copyright (C) 2003 Free Software Foundation, Inc.
This config.status script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it."
srcdir=$srcdir
INSTALL="$INSTALL"
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF
# If no file are specified by the user, then we need to provide default
# value.  By we need to know if files were specified by the user.
ac_need_defaults=:
while test $# != 0
do
  case $1 in
  --*=*)
    ac_option=`expr "x$1" : 'x\([^=]*\)='`
    ac_optarg=`expr "x$1" : 'x[^=]*=\(.*\)'`
    ac_shift=:
    ;;
  -*)
    ac_option=$1
    ac_optarg=$2
    ac_shift=shift
    ;;
  *) # This is not an option, so the user has probably given explicit
     # arguments.
     ac_option=$1
     ac_need_defaults=false;;
  esac

  case $ac_option in
  # Handling of the options.
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF
  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    ac_cs_recheck=: ;;
  --version | --vers* | -V )
    echo "$ac_cs_version"; exit 0 ;;
  --he | --h)
    # Conflict between --help and --header
    { { echo "$as_me:$LINENO: error: ambiguous option: $1
Try \`$0 --help' for more information." >&5
echo "$as_me: error: ambiguous option: $1
Try \`$0 --help' for more information." >&2;}
   { (exit 1); exit 1; }; };;
  --help | --hel | -h )
    echo "$ac_cs_usage"; exit 0 ;;
  --debug | --d* | -d )
    debug=: ;;
  --file | --fil | --fi | --f )
    $ac_shift
    CONFIG_FILES="$CONFIG_FILES $ac_optarg"
    ac_need_defaults=false;;
  --header | --heade | --head | --hea )
    $ac_shift
    CONFIG_HEADERS="$CONFIG_HEADERS $ac_optarg"
    ac_need_defaults=false;;
  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil | --si | --s)
    ac_cs_silent=: ;;

  # This is an error.
  -*) { { echo "$as_me:$LINENO: error: unrecognized option: $1
Try \`$0 --help' for more information." >&5
echo "$as_me: error: unrecognized option: $1
Try \`$0 --help' for more information." >&2;}
   { (exit 1); exit 1; }; } ;;

  *) ac_config_targets="$ac_config_targets $1" ;;

  esac
  shift
done

ac_configure_extra_args=

if $ac_cs_silent; then
  exec 6>/dev/null
  ac_configure_extra_args="$ac_configure_extra_args --silent"
fi

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF
if \$ac_cs_recheck; then
  echo "running $SHELL $0 " $ac_configure_args \$ac_configure_extra_args " --no-create --no-recursion" >&6
  exec $SHELL $0 $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
fi

_ACEOF

cat >>$CONFIG_STATUS <<_ACEOF
#
# INIT-COMMANDS section.
#

AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"

_ACEOF



cat >>$CONFIG_STATUS <<\_ACEOF
for ac_config_target in $ac_config_targets
do
  case "$ac_config_target" in
  # Handling of arguments.
  "Makefile" ) CONFIG_FILES="$CONFIG_FILES Makefile" ;;
  "libraries/Makefile" ) CONFIG_FILES="$CONFIG_FILES libraries/Makefile" ;;
  "source/base/Makefile" ) CONFIG_FILES="$CONFIG_FILES source/base/Makefile" ;;
  "source/frontend/Makefile" ) CONFIG_FILES="$CONFIG_FILES source/frontend/Makefile" ;;
  "source/patches/Makefile" ) CONFIG_FILES="$CONFIG_FILES source/patches/Makefile" ;;
  "source/Makefile" ) CONFIG_FILES="$CONFIG_FILES source/Makefile" ;;
  "unix/Makefile" ) CONFIG_FILES="$CONFIG_FILES unix/Makefile" ;;
  "depfiles" ) CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
  "config.log" ) CONFIG_COMMANDS="$CONFIG_COMMANDS config.log" ;;
  "conf.h" ) CONFIG_HEADERS="$CONFIG_HEADERS conf.h" ;;
  *) { { echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
   { (exit 1); exit 1; }; };;
  esac
done

# If the user did not use the arguments to specify the items to instantiate,
# then the envvar interface is used.  Set only those that are not.
# We use the long form for the default assignment because of an extremely
# bizarre bug on SunOS 4.1.3.
if $ac_need_defaults; then
  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
  test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
fi

# Have a temporary directory for convenience.  Make it in the build tree
# simply because there is no reason to put it here, and in addition,
# creating and moving files from /tmp can sometimes cause problems.
# Create a temporary directory, and hook for its removal unless debugging.
$debug ||
{
  trap 'exit_status=$?; rm -rf $tmp && exit $exit_status' 0
  trap '{ (exit 1); exit 1; }' 1 2 13 15
}

# Create a (secure) tmp directory for tmp files.

{
  tmp=`(umask 077 && mktemp -d -q "./confstatXXXXXX") 2>/dev/null` &&
  test -n "$tmp" && test -d "$tmp"
}  ||
{
  tmp=./confstat$$-$RANDOM
  (umask 077 && mkdir $tmp)
} ||
{
   echo "$me: cannot create a temporary directory in ." >&2
   { (exit 1); exit 1; }
}

_ACEOF

cat >>$CONFIG_STATUS <<_ACEOF

#
# CONFIG_FILES section.
#

# No need to generate the scripts if there are no CONFIG_FILES.
# This happens for instance when ./config.status config.h
if test -n "\$CONFIG_FILES"; then
  # Protect against being on the right side of a sed subst in config.status.
  sed 's/,@/@@/; s/@,/@@/; s/,;t t\$/@;t t/; /@;t t\$/s/[\\\\&,]/\\\\&/g;
   s/@@/,@/; s/@@/@,/; s/@;t t\$/,;t t/' >\$tmp/subs.sed <<\\CEOF
s,@SHELL@,$SHELL,;t t
s,@PATH_SEPARATOR@,$PATH_SEPARATOR,;t t
s,@PACKAGE_NAME@,$PACKAGE_NAME,;t t
s,@PACKAGE_TARNAME@,$PACKAGE_TARNAME,;t t
s,@PACKAGE_VERSION@,$PACKAGE_VERSION,;t t
s,@PACKAGE_STRING@,$PACKAGE_STRING,;t t
s,@PACKAGE_BUGREPORT@,$PACKAGE_BUGREPORT,;t t
s,@exec_prefix@,$exec_prefix,;t t
s,@prefix@,$prefix,;t t
s,@program_transform_name@,$program_transform_name,;t t
s,@bindir@,$bindir,;t t
s,@sbindir@,$sbindir,;t t
s,@libexecdir@,$libexecdir,;t t
s,@datadir@,$datadir,;t t
s,@sysconfdir@,$sysconfdir,;t t
s,@sharedstatedir@,$sharedstatedir,;t t
s,@localstatedir@,$localstatedir,;t t
s,@libdir@,$libdir,;t t
s,@includedir@,$includedir,;t t
s,@oldincludedir@,$oldincludedir,;t t
s,@infodir@,$infodir,;t t
s,@mandir@,$mandir,;t t
s,@build_alias@,$build_alias,;t t
s,@host_alias@,$host_alias,;t t
s,@target_alias@,$target_alias,;t t
s,@DEFS@,$DEFS,;t t
s,@ECHO_C@,$ECHO_C,;t t
s,@ECHO_N@,$ECHO_N,;t t
s,@ECHO_T@,$ECHO_T,;t t
s,@LIBS@,$LIBS,;t t
s,@VERSION_BASE@,$VERSION_BASE,;t t
s,@COMPILED_BY@,$COMPILED_BY,;t t
s,@C99_COMPATIBLE_RADIOSITY@,$C99_COMPATIBLE_RADIOSITY,;t t
s,@build@,$build,;t t
s,@build_cpu@,$build_cpu,;t t
s,@build_vendor@,$build_vendor,;t t
s,@build_os@,$build_os,;t t
s,@host@,$host,;t t
s,@host_cpu@,$host_cpu,;t t
s,@host_vendor@,$host_vendor,;t t
s,@host_os@,$host_os,;t t
s,@INSTALL_PROGRAM@,$INSTALL_PROGRAM,;t t
s,@INSTALL_SCRIPT@,$INSTALL_SCRIPT,;t t
s,@INSTALL_DATA@,$INSTALL_DATA,;t t
s,@CYGPATH_W@,$CYGPATH_W,;t t
s,@PACKAGE@,$PACKAGE,;t t
s,@VERSION@,$VERSION,;t t
s,@ACLOCAL@,$ACLOCAL,;t t
s,@AUTOCONF@,$AUTOCONF,;t t
s,@AUTOMAKE@,$AUTOMAKE,;t t
s,@AUTOHEADER@,$AUTOHEADER,;t t
s,@MAKEINFO@,$MAKEINFO,;t t
s,@install_sh@,$install_sh,;t t
s,@STRIP@,$STRIP,;t t
s,@ac_ct_STRIP@,$ac_ct_STRIP,;t t
s,@INSTALL_STRIP_PROGRAM@,$INSTALL_STRIP_PROGRAM,;t t
s,@mkdir_p@,$mkdir_p,;t t
s,@AWK@,$AWK,;t t
s,@SET_MAKE@,$SET_MAKE,;t t
s,@am__leading_dot@,$am__leading_dot,;t t
s,@AMTAR@,$AMTAR,;t t
s,@am__tar@,$am__tar,;t t
s,@am__untar@,$am__untar,;t t
s,@MAINTAINER_MODE_TRUE@,$MAINTAINER_MODE_TRUE,;t t
s,@MAINTAINER_MODE_FALSE@,$MAINTAINER_MODE_FALSE,;t t
s,@MAINT@,$MAINT,;t t
s,@C_INCLUDE_PATH@,$C_INCLUDE_PATH,;t t
s,@CPLUS_INCLUDE_PATH@,$CPLUS_INCLUDE_PATH,;t t
s,@CXX@,$CXX,;t t
s,@CXXFLAGS@,$CXXFLAGS,;t t
s,@LDFLAGS@,$LDFLAGS,;t t
s,@CPPFLAGS@,$CPPFLAGS,;t t
s,@ac_ct_CXX@,$ac_ct_CXX,;t t
s,@EXEEXT@,$EXEEXT,;t t
s,@OBJEXT@,$OBJEXT,;t t
s,@DEPDIR@,$DEPDIR,;t t
s,@am__include@,$am__include,;t t
s,@am__quote@,$am__quote,;t t
s,@AMDEP_TRUE@,$AMDEP_TRUE,;t t
s,@AMDEP_FALSE@,$AMDEP_FALSE,;t t
s,@AMDEPBACKSLASH@,$AMDEPBACKSLASH,;t t
s,@CXXDEPMODE@,$CXXDEPMODE,;t t
s,@am__fastdepCXX_TRUE@,$am__fastdepCXX_TRUE,;t t
s,@am__fastdepCXX_FALSE@,$am__fastdepCXX_FALSE,;t t
s,@EGREP@,$EGREP,;t t
s,@CXXCPP@,$CXXCPP,;t t
s,@CC@,$CC,;t t
s,@CFLAGS@,$CFLAGS,;t t
s,@ac_ct_CC@,$ac_ct_CC,;t t
s,@CCDEPMODE@,$CCDEPMODE,;t t
s,@am__fastdepCC_TRUE@,$am__fastdepCC_TRUE,;t t
s,@am__fastdepCC_FALSE@,$am__fastdepCC_FALSE,;t t
s,@CPP@,$CPP,;t t
s,@RANLIB@,$RANLIB,;t t
s,@ac_ct_RANLIB@,$ac_ct_RANLIB,;t t
s,@LIBOBJS@,$LIBOBJS,;t t
s,@X_CFLAGS@,$X_CFLAGS,;t t
s,@X_PRE_LIBS@,$X_PRE_LIBS,;t t
s,@X_LIBS@,$X_LIBS,;t t
s,@X_EXTRA_LIBS@,$X_EXTRA_LIBS,;t t
s,@subdirs@,$subdirs,;t t
s,@INCZ@,$INCZ,;t t
s,@LIBZ@,$LIBZ,;t t
s,@INCPNG@,$INCPNG,;t t
s,@LIBPNG@,$LIBPNG,;t t
s,@INCJPEG@,$INCJPEG,;t t
s,@LIBJPEG@,$LIBJPEG,;t t
s,@INCTIFF@,$INCTIFF,;t t
s,@LIBTIFF@,$LIBTIFF,;t t
s,@POVLIBS@,$POVLIBS,;t t
s,@LTLIBOBJS@,$LTLIBOBJS,;t t
CEOF

_ACEOF

  cat >>$CONFIG_STATUS <<\_ACEOF
  # Split the substitutions into bite-sized pieces for seds with
  # small command number limits, like on Digital OSF/1 and HP-UX.
  ac_max_sed_lines=48
  ac_sed_frag=1 # Number of current file.
  ac_beg=1 # First line for current file.
  ac_end=$ac_max_sed_lines # Line after last line for current file.
  ac_more_lines=:
  ac_sed_cmds=
  while $ac_more_lines; do
    if test $ac_beg -gt 1; then
      sed "1,${ac_beg}d; ${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
    else
      sed "${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
    fi
    if test ! -s $tmp/subs.frag; then
      ac_more_lines=false
    else
      # The purpose of the label and of the branching condition is to
      # speed up the sed processing (if there are no `@' at all, there
      # is no need to browse any of the substitutions).
      # These are the two extra sed commands mentioned above.
      (echo ':t
  /@[a-zA-Z_][a-zA-Z_0-9]*@/!b' && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed
      if test -z "$ac_sed_cmds"; then
	ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
      else
	ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed"
      fi
      ac_sed_frag=`expr $ac_sed_frag + 1`
      ac_beg=$ac_end
      ac_end=`expr $ac_end + $ac_max_sed_lines`
    fi
  done
  if test -z "$ac_sed_cmds"; then
    ac_sed_cmds=cat
  fi
fi # test -n "$CONFIG_FILES"

_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF
for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
  case $ac_file in
  - | *:- | *:-:* ) # input from stdin
	cat >$tmp/stdin
	ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
	ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
  *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
	ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
  * )   ac_file_in=$ac_file.in ;;
  esac

  # Compute @srcdir@, @top_srcdir@, and @INSTALL@ for subdirectories.
  ac_dir=`(dirname "$ac_file") 2>/dev/null ||
$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$ac_file" : 'X\(//\)[^/]' \| \
	 X"$ac_file" : 'X\(//\)$' \| \
	 X"$ac_file" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$ac_file" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
  { if $as_mkdir_p; then
    mkdir -p "$ac_dir"
  else
    as_dir="$ac_dir"
    as_dirs=
    while test ! -d "$as_dir"; do
      as_dirs="$as_dir $as_dirs"
      as_dir=`(dirname "$as_dir") 2>/dev/null ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
    done
    test ! -n "$as_dirs" || mkdir $as_dirs
  fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
   { (exit 1); exit 1; }; }; }

  ac_builddir=.

if test "$ac_dir" != .; then
  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
  # A "../" for each directory in $ac_dir_suffix.
  ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
else
  ac_dir_suffix= ac_top_builddir=
fi

case $srcdir in
  .)  # No --srcdir option.  We are building in place.
    ac_srcdir=.
    if test -z "$ac_top_builddir"; then
       ac_top_srcdir=.
    else
       ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
    fi ;;
  [\\/]* | ?:[\\/]* )  # Absolute path.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir ;;
  *) # Relative path.
    ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_builddir$srcdir ;;
esac

# Do not use `cd foo && pwd` to compute absolute paths, because
# the directories may not exist.
case `pwd` in
.) ac_abs_builddir="$ac_dir";;
*)
  case "$ac_dir" in
  .) ac_abs_builddir=`pwd`;;
  [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
  *) ac_abs_builddir=`pwd`/"$ac_dir";;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_top_builddir=${ac_top_builddir}.;;
*)
  case ${ac_top_builddir}. in
  .) ac_abs_top_builddir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
  *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_srcdir=$ac_srcdir;;
*)
  case $ac_srcdir in
  .) ac_abs_srcdir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
  *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_top_srcdir=$ac_top_srcdir;;
*)
  case $ac_top_srcdir in
  .) ac_abs_top_srcdir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
  *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
  esac;;
esac


  case $INSTALL in
  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
  *) ac_INSTALL=$ac_top_builddir$INSTALL ;;
  esac

  if test x"$ac_file" != x-; then
    { echo "$as_me:$LINENO: creating $ac_file" >&5
echo "$as_me: creating $ac_file" >&6;}
    rm -f "$ac_file"
  fi
  # Let's still pretend it is `configure' which instantiates (i.e., don't
  # use $as_me), people would be surprised to read:
  #    /* config.h.  Generated by config.status.  */
  if test x"$ac_file" = x-; then
    configure_input=
  else
    configure_input="$ac_file.  "
  fi
  configure_input=$configure_input"Generated from `echo $ac_file_in |
				     sed 's,.*/,,'` by configure."

  # First look for the input files in the build tree, otherwise in the
  # src tree.
  ac_file_inputs=`IFS=:
    for f in $ac_file_in; do
      case $f in
      -) echo $tmp/stdin ;;
      [\\/$]*)
	 # Absolute (can't be DOS-style, as IFS=:)
	 test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
echo "$as_me: error: cannot find input file: $f" >&2;}
   { (exit 1); exit 1; }; }
	 echo "$f";;
      *) # Relative
	 if test -f "$f"; then
	   # Build tree
	   echo "$f"
	 elif test -f "$srcdir/$f"; then
	   # Source tree
	   echo "$srcdir/$f"
	 else
	   # /dev/null tree
	   { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
echo "$as_me: error: cannot find input file: $f" >&2;}
   { (exit 1); exit 1; }; }
	 fi;;
      esac
    done` || { (exit 1); exit 1; }
_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF
  sed "$ac_vpsub
$extrasub
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF
:t
/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
s,@configure_input@,$configure_input,;t t
s,@srcdir@,$ac_srcdir,;t t
s,@abs_srcdir@,$ac_abs_srcdir,;t t
s,@top_srcdir@,$ac_top_srcdir,;t t
s,@abs_top_srcdir@,$ac_abs_top_srcdir,;t t
s,@builddir@,$ac_builddir,;t t
s,@abs_builddir@,$ac_abs_builddir,;t t
s,@top_builddir@,$ac_top_builddir,;t t
s,@abs_top_builddir@,$ac_abs_top_builddir,;t t
s,@INSTALL@,$ac_INSTALL,;t t
" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out
  rm -f $tmp/stdin
  if test x"$ac_file" != x-; then
    mv $tmp/out $ac_file
  else
    cat $tmp/out
    rm -f $tmp/out
  fi

done
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF

#
# CONFIG_HEADER section.
#

# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
# NAME is the cpp macro being defined and VALUE is the value it is being given.
#
# ac_d sets the value in "#define NAME VALUE" lines.
ac_dA='s,^\([	 ]*\)#\([	 ]*define[	 ][	 ]*\)'
ac_dB='[	 ].*$,\1#\2'
ac_dC=' '
ac_dD=',;t'
# ac_u turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
ac_uA='s,^\([	 ]*\)#\([	 ]*\)undef\([	 ][	 ]*\)'
ac_uB='$,\1#\2define\3'
ac_uC=' '
ac_uD=',;t'

for ac_file in : $CONFIG_HEADERS; do test "x$ac_file" = x: && continue
  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
  case $ac_file in
  - | *:- | *:-:* ) # input from stdin
	cat >$tmp/stdin
	ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
	ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
  *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
	ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
  * )   ac_file_in=$ac_file.in ;;
  esac

  test x"$ac_file" != x- && { echo "$as_me:$LINENO: creating $ac_file" >&5
echo "$as_me: creating $ac_file" >&6;}

  # First look for the input files in the build tree, otherwise in the
  # src tree.
  ac_file_inputs=`IFS=:
    for f in $ac_file_in; do
      case $f in
      -) echo $tmp/stdin ;;
      [\\/$]*)
	 # Absolute (can't be DOS-style, as IFS=:)
	 test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
echo "$as_me: error: cannot find input file: $f" >&2;}
   { (exit 1); exit 1; }; }
	 # Do quote $f, to prevent DOS paths from being IFS'd.
	 echo "$f";;
      *) # Relative
	 if test -f "$f"; then
	   # Build tree
	   echo "$f"
	 elif test -f "$srcdir/$f"; then
	   # Source tree
	   echo "$srcdir/$f"
	 else
	   # /dev/null tree
	   { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
echo "$as_me: error: cannot find input file: $f" >&2;}
   { (exit 1); exit 1; }; }
	 fi;;
      esac
    done` || { (exit 1); exit 1; }
  # Remove the trailing spaces.
  sed 's/[	 ]*$//' $ac_file_inputs >$tmp/in

_ACEOF

# Transform confdefs.h into two sed scripts, `conftest.defines' and
# `conftest.undefs', that substitutes the proper values into
# config.h.in to produce config.h.  The first handles `#define'
# templates, and the second `#undef' templates.
# And first: Protect against being on the right side of a sed subst in
# config.status.  Protect against being in an unquoted here document
# in config.status.
rm -f conftest.defines conftest.undefs
# Using a here document instead of a string reduces the quoting nightmare.
# Putting comments in sed scripts is not portable.
#
# `end' is used to avoid that the second main sed command (meant for
# 0-ary CPP macros) applies to n-ary macro definitions.
# See the Autoconf documentation for `clear'.
cat >confdef2sed.sed <<\_ACEOF
s/[\\&,]/\\&/g
s,[\\$`],\\&,g
t clear
: clear
s,^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 (][^	 (]*\)\(([^)]*)\)[	 ]*\(.*\)$,${ac_dA}\1${ac_dB}\1\2${ac_dC}\3${ac_dD},gp
t end
s,^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 ][^	 ]*\)[	 ]*\(.*\)$,${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD},gp
: end
_ACEOF
# If some macros were called several times there might be several times
# the same #defines, which is useless.  Nevertheless, we may not want to
# sort them, since we want the *last* AC-DEFINE to be honored.
uniq confdefs.h | sed -n -f confdef2sed.sed >conftest.defines
sed 's/ac_d/ac_u/g' conftest.defines >conftest.undefs
rm -f confdef2sed.sed

# This sed command replaces #undef with comments.  This is necessary, for
# example, in the case of _POSIX_SOURCE, which is predefined and required
# on some systems where configure will not decide to define it.
cat >>conftest.undefs <<\_ACEOF
s,^[	 ]*#[	 ]*undef[	 ][	 ]*[a-zA-Z_][a-zA-Z_0-9]*,/* & */,
_ACEOF

# Break up conftest.defines because some shells have a limit on the size
# of here documents, and old seds have small limits too (100 cmds).
echo '  # Handle all the #define templates only if necessary.' >>$CONFIG_STATUS
echo '  if grep "^[	 ]*#[	 ]*define" $tmp/in >/dev/null; then' >>$CONFIG_STATUS
echo '  # If there are no defines, we may have an empty if/fi' >>$CONFIG_STATUS
echo '  :' >>$CONFIG_STATUS
rm -f conftest.tail
while grep . conftest.defines >/dev/null
do
  # Write a limited-size here document to $tmp/defines.sed.
  echo '  cat >$tmp/defines.sed <<CEOF' >>$CONFIG_STATUS
  # Speed up: don't consider the non `#define' lines.
  echo '/^[	 ]*#[	 ]*define/!b' >>$CONFIG_STATUS
  # Work around the forget-to-reset-the-flag bug.
  echo 't clr' >>$CONFIG_STATUS
  echo ': clr' >>$CONFIG_STATUS
  sed ${ac_max_here_lines}q conftest.defines >>$CONFIG_STATUS
  echo 'CEOF
  sed -f $tmp/defines.sed $tmp/in >$tmp/out
  rm -f $tmp/in
  mv $tmp/out $tmp/in
' >>$CONFIG_STATUS
  sed 1,${ac_max_here_lines}d conftest.defines >conftest.tail
  rm -f conftest.defines
  mv conftest.tail conftest.defines
done
rm -f conftest.defines
echo '  fi # grep' >>$CONFIG_STATUS
echo >>$CONFIG_STATUS

# Break up conftest.undefs because some shells have a limit on the size
# of here documents, and old seds have small limits too (100 cmds).
echo '  # Handle all the #undef templates' >>$CONFIG_STATUS
rm -f conftest.tail
while grep . conftest.undefs >/dev/null
do
  # Write a limited-size here document to $tmp/undefs.sed.
  echo '  cat >$tmp/undefs.sed <<CEOF' >>$CONFIG_STATUS
  # Speed up: don't consider the non `#undef'
  echo '/^[	 ]*#[	 ]*undef/!b' >>$CONFIG_STATUS
  # Work around the forget-to-reset-the-flag bug.
  echo 't clr' >>$CONFIG_STATUS
  echo ': clr' >>$CONFIG_STATUS
  sed ${ac_max_here_lines}q conftest.undefs >>$CONFIG_STATUS
  echo 'CEOF
  sed -f $tmp/undefs.sed $tmp/in >$tmp/out
  rm -f $tmp/in
  mv $tmp/out $tmp/in
' >>$CONFIG_STATUS
  sed 1,${ac_max_here_lines}d conftest.undefs >conftest.tail
  rm -f conftest.undefs
  mv conftest.tail conftest.undefs
done
rm -f conftest.undefs

cat >>$CONFIG_STATUS <<\_ACEOF
  # Let's still pretend it is `configure' which instantiates (i.e., don't
  # use $as_me), people would be surprised to read:
  #    /* config.h.  Generated by config.status.  */
  if test x"$ac_file" = x-; then
    echo "/* Generated by configure.  */" >$tmp/config.h
  else
    echo "/* $ac_file.  Generated by configure.  */" >$tmp/config.h
  fi
  cat $tmp/in >>$tmp/config.h
  rm -f $tmp/in
  if test x"$ac_file" != x-; then
    if diff $ac_file $tmp/config.h >/dev/null 2>&1; then
      { echo "$as_me:$LINENO: $ac_file is unchanged" >&5
echo "$as_me: $ac_file is unchanged" >&6;}
    else
      ac_dir=`(dirname "$ac_file") 2>/dev/null ||
$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$ac_file" : 'X\(//\)[^/]' \| \
	 X"$ac_file" : 'X\(//\)$' \| \
	 X"$ac_file" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$ac_file" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
      { if $as_mkdir_p; then
    mkdir -p "$ac_dir"
  else
    as_dir="$ac_dir"
    as_dirs=
    while test ! -d "$as_dir"; do
      as_dirs="$as_dir $as_dirs"
      as_dir=`(dirname "$as_dir") 2>/dev/null ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
    done
    test ! -n "$as_dirs" || mkdir $as_dirs
  fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
   { (exit 1); exit 1; }; }; }

      rm -f $ac_file
      mv $tmp/config.h $ac_file
    fi
  else
    cat $tmp/config.h
    rm -f $tmp/config.h
  fi
# Compute $ac_file's index in $config_headers.
_am_stamp_count=1
for _am_header in $config_headers :; do
  case $_am_header in
    $ac_file | $ac_file:* )
      break ;;
    * )
      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  esac
done
echo "timestamp for $ac_file" >`(dirname $ac_file) 2>/dev/null ||
$as_expr X$ac_file : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X$ac_file : 'X\(//\)[^/]' \| \
	 X$ac_file : 'X\(//\)$' \| \
	 X$ac_file : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X$ac_file |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`/stamp-h$_am_stamp_count
done
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF

#
# CONFIG_COMMANDS section.
#
for ac_file in : $CONFIG_COMMANDS; do test "x$ac_file" = x: && continue
  ac_dest=`echo "$ac_file" | sed 's,:.*,,'`
  ac_source=`echo "$ac_file" | sed 's,[^:]*:,,'`
  ac_dir=`(dirname "$ac_dest") 2>/dev/null ||
$as_expr X"$ac_dest" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$ac_dest" : 'X\(//\)[^/]' \| \
	 X"$ac_dest" : 'X\(//\)$' \| \
	 X"$ac_dest" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$ac_dest" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
  { if $as_mkdir_p; then
    mkdir -p "$ac_dir"
  else
    as_dir="$ac_dir"
    as_dirs=
    while test ! -d "$as_dir"; do
      as_dirs="$as_dir $as_dirs"
      as_dir=`(dirname "$as_dir") 2>/dev/null ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
    done
    test ! -n "$as_dirs" || mkdir $as_dirs
  fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
   { (exit 1); exit 1; }; }; }

  ac_builddir=.

if test "$ac_dir" != .; then
  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
  # A "../" for each directory in $ac_dir_suffix.
  ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
else
  ac_dir_suffix= ac_top_builddir=
fi

case $srcdir in
  .)  # No --srcdir option.  We are building in place.
    ac_srcdir=.
    if test -z "$ac_top_builddir"; then
       ac_top_srcdir=.
    else
       ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
    fi ;;
  [\\/]* | ?:[\\/]* )  # Absolute path.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir ;;
  *) # Relative path.
    ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_builddir$srcdir ;;
esac

# Do not use `cd foo && pwd` to compute absolute paths, because
# the directories may not exist.
case `pwd` in
.) ac_abs_builddir="$ac_dir";;
*)
  case "$ac_dir" in
  .) ac_abs_builddir=`pwd`;;
  [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
  *) ac_abs_builddir=`pwd`/"$ac_dir";;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_top_builddir=${ac_top_builddir}.;;
*)
  case ${ac_top_builddir}. in
  .) ac_abs_top_builddir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
  *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_srcdir=$ac_srcdir;;
*)
  case $ac_srcdir in
  .) ac_abs_srcdir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
  *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_top_srcdir=$ac_top_srcdir;;
*)
  case $ac_top_srcdir in
  .) ac_abs_top_srcdir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
  *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
  esac;;
esac


  { echo "$as_me:$LINENO: executing $ac_dest commands" >&5
echo "$as_me: executing $ac_dest commands" >&6;}
  case $ac_dest in
    depfiles ) test x"$AMDEP_TRUE" != x"" || for mf in $CONFIG_FILES; do
  # Strip MF so we end up with the name of the file.
  mf=`echo "$mf" | sed -e 's/:.*$//'`
  # Check whether this is an Automake generated Makefile or not.
  # We used to match only the files named `Makefile.in', but
  # some people rename them; so instead we look at the file content.
  # Grep'ing the first line is not enough: some people post-process
  # each Makefile.in and add a new line on top of each file to say so.
  # So let's grep whole file.
  if grep '^#.*generated by automake' $mf > /dev/null 2>&1; then
    dirpart=`(dirname "$mf") 2>/dev/null ||
$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$mf" : 'X\(//\)[^/]' \| \
	 X"$mf" : 'X\(//\)$' \| \
	 X"$mf" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$mf" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
  else
    continue
  fi
  # Extract the definition of DEPDIR, am__include, and am__quote
  # from the Makefile without running `make'.
  DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
  test -z "$DEPDIR" && continue
  am__include=`sed -n 's/^am__include = //p' < "$mf"`
  test -z "am__include" && continue
  am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
  # When using ansi2knr, U may be empty or an underscore; expand it
  U=`sed -n 's/^U = //p' < "$mf"`
  # Find all dependency output files, they are included files with
  # $(DEPDIR) in their names.  We invoke sed twice because it is the
  # simplest approach to changing $(DEPDIR) to its actual value in the
  # expansion.
  for file in `sed -n "
    s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
       sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
    # Make sure the directory exists.
    test -f "$dirpart/$file" && continue
    fdir=`(dirname "$file") 2>/dev/null ||
$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$file" : 'X\(//\)[^/]' \| \
	 X"$file" : 'X\(//\)$' \| \
	 X"$file" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$file" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
    { if $as_mkdir_p; then
    mkdir -p $dirpart/$fdir
  else
    as_dir=$dirpart/$fdir
    as_dirs=
    while test ! -d "$as_dir"; do
      as_dirs="$as_dir $as_dirs"
      as_dir=`(dirname "$as_dir") 2>/dev/null ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
    done
    test ! -n "$as_dirs" || mkdir $as_dirs
  fi || { { echo "$as_me:$LINENO: error: cannot create directory $dirpart/$fdir" >&5
echo "$as_me: error: cannot create directory $dirpart/$fdir" >&2;}
   { (exit 1); exit 1; }; }; }

    # echo "creating $dirpart/$file"
    echo '# dummy' > "$dirpart/$file"
  done
done
 ;;
    config.log ) echo "$as_me:$LINENO: result:
Supporting libraries
--------------------" >&5
echo "${ECHO_T}
Supporting libraries
--------------------" >&6
   ;;
  esac
done
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF

{ (exit 0); exit 0; }
_ACEOF
chmod +x $CONFIG_STATUS
ac_clean_files=$ac_clean_files_save


# configure is writing to config.log, and then calls config.status.
# config.status does its own redirection, appending to config.log.
# Unfortunately, on DOS this fails, as config.log is still kept open
# by configure, so config.status won't be able to write to it; its
# output is simply discarded.  So we exec the FD to /dev/null,
# effectively closing config.log, so it can be properly (re)opened and
# appended to by config.status.  When coming back to configure, we
# need to make the FD available again.
if test "$no_create" != yes; then
  ac_cs_success=:
  ac_config_status_args=
  test "$silent" = yes &&
    ac_config_status_args="$ac_config_status_args --quiet"
  exec 5>/dev/null
  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
  exec 5>>config.log
  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
  # would make configure fail if this is the last instruction.
  $ac_cs_success || { (exit 1); exit 1; }
fi

#
# CONFIG_SUBDIRS section.
#
if test "$no_recursion" != yes; then

  # Remove --cache-file and --srcdir arguments so they do not pile up.
  ac_sub_configure_args=
  ac_prev=
  for ac_arg in $ac_configure_args; do
    if test -n "$ac_prev"; then
      ac_prev=
      continue
    fi
    case $ac_arg in
    -cache-file | --cache-file | --cache-fil | --cache-fi \
    | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
      ac_prev=cache_file ;;
    -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
    | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* \
    | --c=*)
      ;;
    --config-cache | -C)
      ;;
    -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
      ac_prev=srcdir ;;
    -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
      ;;
    -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
      ac_prev=prefix ;;
    -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
      ;;
    *) ac_sub_configure_args="$ac_sub_configure_args $ac_arg" ;;
    esac
  done

  # Always prepend --prefix to ensure using the same prefix
  # in subdir configurations.
  ac_sub_configure_args="--prefix=$prefix $ac_sub_configure_args"

  ac_popdir=`pwd`
  for ac_dir in : $subdirs; do test "x$ac_dir" = x: && continue

    # Do not complain, so a configure script can configure whichever
    # parts of a large source tree are present.
    test -d $srcdir/$ac_dir || continue

    { echo "$as_me:$LINENO: configuring in $ac_dir" >&5
echo "$as_me: configuring in $ac_dir" >&6;}
    { if $as_mkdir_p; then
    mkdir -p "$ac_dir"
  else
    as_dir="$ac_dir"
    as_dirs=
    while test ! -d "$as_dir"; do
      as_dirs="$as_dir $as_dirs"
      as_dir=`(dirname "$as_dir") 2>/dev/null ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
    done
    test ! -n "$as_dirs" || mkdir $as_dirs
  fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
   { (exit 1); exit 1; }; }; }

    ac_builddir=.

if test "$ac_dir" != .; then
  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
  # A "../" for each directory in $ac_dir_suffix.
  ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
else
  ac_dir_suffix= ac_top_builddir=
fi

case $srcdir in
  .)  # No --srcdir option.  We are building in place.
    ac_srcdir=.
    if test -z "$ac_top_builddir"; then
       ac_top_srcdir=.
    else
       ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
    fi ;;
  [\\/]* | ?:[\\/]* )  # Absolute path.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir ;;
  *) # Relative path.
    ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_builddir$srcdir ;;
esac

# Do not use `cd foo && pwd` to compute absolute paths, because
# the directories may not exist.
case `pwd` in
.) ac_abs_builddir="$ac_dir";;
*)
  case "$ac_dir" in
  .) ac_abs_builddir=`pwd`;;
  [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
  *) ac_abs_builddir=`pwd`/"$ac_dir";;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_top_builddir=${ac_top_builddir}.;;
*)
  case ${ac_top_builddir}. in
  .) ac_abs_top_builddir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
  *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_srcdir=$ac_srcdir;;
*)
  case $ac_srcdir in
  .) ac_abs_srcdir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
  *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
  esac;;
esac
case $ac_abs_builddir in
.) ac_abs_top_srcdir=$ac_top_srcdir;;
*)
  case $ac_top_srcdir in
  .) ac_abs_top_srcdir=$ac_abs_builddir;;
  [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
  *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
  esac;;
esac


    cd "$ac_dir"

    # Check for guested configure; otherwise get Cygnus style configure.
    if test -f $ac_srcdir/configure.gnu; then
      ac_sub_configure="$SHELL '$ac_srcdir/configure.gnu'"
    elif test -f $ac_srcdir/configure; then
      ac_sub_configure="$SHELL '$ac_srcdir/configure'"
    elif test -f $ac_srcdir/configure.in; then
      ac_sub_configure=$ac_configure
    else
      { echo "$as_me:$LINENO: WARNING: no configuration information is in $ac_dir" >&5
echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2;}
      ac_sub_configure=
    fi

    # The recursion is here.
    if test -n "$ac_sub_configure"; then
      # Make the cache file name correct relative to the subdirectory.
      case $cache_file in
      [\\/]* | ?:[\\/]* ) ac_sub_cache_file=$cache_file ;;
      *) # Relative path.
	ac_sub_cache_file=$ac_top_builddir$cache_file ;;
      esac

      { echo "$as_me:$LINENO: running $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&5
echo "$as_me: running $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&6;}
      # The eval makes quoting arguments work.
      eval $ac_sub_configure $ac_sub_configure_args \
	   --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir ||
	{ { echo "$as_me:$LINENO: error: $ac_sub_configure failed for $ac_dir" >&5
echo "$as_me: error: $ac_sub_configure failed for $ac_dir" >&2;}
   { (exit 1); exit 1; }; }
    fi

    cd "$ac_popdir"
  done
fi



###############################################################################

if test x"$enable_io_restrictions" = x"no"; then
  pov_io_msg="disabled"
else
  pov_io_msg="enabled"
fi

# recursively expand the following variables for displaying
for i in bindir sysconfdir datadir mandir ; do
  eval povtemp=\$$i
  while test "$povtemp" != "$oldpovtemp" ; do
    oldpovtemp=$povtemp
    eval povtemp=$povtemp
  done
  eval pov$i=$povtemp
done

echo "$as_me:$LINENO: result:
===============================================================================
$PACKAGE_NAME $PACKAGE_VERSION has been configured with the following features:
  I/O restrictions: ${pov_io_msg}
  X Window display: ${pov_xwin_msg}
  SVGAlib display : ${pov_svga_msg}

Type 'make check' to build the program and run a test render.
Type 'make install' to install $PACKAGE_NAME on your system.

The $PACKAGE_NAME components will be installed in the following directories:
  Program (povray binary)     ${povbindir}
  System configuration files  ${povsysconfdir}/$PACKAGE/$VERSION_BASE
  User configuration files    ${HOME}/.$PACKAGE/$VERSION_BASE
  Standard include files      ${povdatadir}/$PACKAGE-$VERSION_BASE/include
  Standard INI files          ${povdatadir}/$PACKAGE-$VERSION_BASE/ini
  Standard demo scene files   ${povdatadir}/$PACKAGE-$VERSION_BASE/scenes
  Documentation               ${povdatadir}/doc/$PACKAGE-$VERSION_BASE
  Unix man page               ${povmandir}" >&5
echo "${ECHO_T}
===============================================================================
$PACKAGE_NAME $PACKAGE_VERSION has been configured with the following features:
  I/O restrictions: ${pov_io_msg}
  X Window display: ${pov_xwin_msg}
  SVGAlib display : ${pov_svga_msg}

Type 'make check' to build the program and run a test render.
Type 'make install' to install $PACKAGE_NAME on your system.

The $PACKAGE_NAME components will be installed in the following directories:
  Program (povray binary)     ${povbindir}
  System configuration files  ${povsysconfdir}/$PACKAGE/$VERSION_BASE
  User configuration files    ${HOME}/.$PACKAGE/$VERSION_BASE
  Standard include files      ${povdatadir}/$PACKAGE-$VERSION_BASE/include
  Standard INI files          ${povdatadir}/$PACKAGE-$VERSION_BASE/ini
  Standard demo scene files   ${povdatadir}/$PACKAGE-$VERSION_BASE/scenes
  Documentation               ${povdatadir}/doc/$PACKAGE-$VERSION_BASE
  Unix man page               ${povmandir}" >&6

if test "$pov_warn_path"; then
  echo "
WARNING: configure has detected that the list of search paths specified
by the following environment variables
 $pov_warn_path
erroneously contain the \".\" directory, which may cause a build failure.
In order to build POV-Ray successfully, the package has been configured
with all \".\" directory entries removed from the variables above.  You're
strongly advised to correct your configuration accordingly."
fi

echo "$as_me:$LINENO: result: ===============================================================================
" >&5
echo "${ECHO_T}===============================================================================
" >&6
