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configure

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  • Forked from gmsh / gmsh
    Source project has a limited visibility.
    configure 123.83 KiB
    #! /bin/sh
    # Guess values for system-dependent variables and create Makefiles.
    # Generated by GNU Autoconf 2.53.
    #
    # Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
    # Free Software Foundation, Inc.
    # This configure script is free software; the Free Software Foundation
    # gives unlimited permission to copy, distribute and modify it.
    
    if expr a : '\(a\)' >/dev/null 2>&1; then
      as_expr=expr
    else
      as_expr=false
    fi
    
    
    ## --------------------- ##
    ## M4sh Initialization.  ##
    ## --------------------- ##
    
    # Be Bourne compatible
    if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
      emulate sh
      NULLCMD=:
    elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
      set -o posix
    fi
    
    # NLS nuisances.
    # Support unset when possible.
    if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
      as_unset=unset
    else
      as_unset=false
    fi
    
    (set +x; test -n "`(LANG=C; export LANG) 2>&1`") &&
        { $as_unset LANG || test "${LANG+set}" != set; } ||
          { LANG=C; export LANG; }
    (set +x; test -n "`(LC_ALL=C; export LC_ALL) 2>&1`") &&
        { $as_unset LC_ALL || test "${LC_ALL+set}" != set; } ||
          { LC_ALL=C; export LC_ALL; }
    (set +x; test -n "`(LC_TIME=C; export LC_TIME) 2>&1`") &&
        { $as_unset LC_TIME || test "${LC_TIME+set}" != set; } ||
          { LC_TIME=C; export LC_TIME; }
    (set +x; test -n "`(LC_CTYPE=C; export LC_CTYPE) 2>&1`") &&
        { $as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set; } ||
          { LC_CTYPE=C; export LC_CTYPE; }
    (set +x; test -n "`(LANGUAGE=C; export LANGUAGE) 2>&1`") &&
        { $as_unset LANGUAGE || test "${LANGUAGE+set}" != set; } ||
          { LANGUAGE=C; export LANGUAGE; }
    (set +x; test -n "`(LC_COLLATE=C; export LC_COLLATE) 2>&1`") &&
        { $as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set; } ||
          { LC_COLLATE=C; export LC_COLLATE; }
    (set +x; test -n "`(LC_NUMERIC=C; export LC_NUMERIC) 2>&1`") &&
        { $as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set; } ||
          { LC_NUMERIC=C; export LC_NUMERIC; }
    (set +x; test -n "`(LC_MESSAGES=C; export LC_MESSAGES) 2>&1`") &&
        { $as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set; } ||
          { LC_MESSAGES=C; export LC_MESSAGES; }
    
    
    # Name of the executable.
    as_me=`(basename "$0") 2>/dev/null ||
    $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" >conftest.sh
      echo  "exit 0"   >>conftest.sh
      chmod +x conftest.sh
      if (PATH=".;."; conftest.sh) >/dev/null 2>&1; then
        PATH_SEPARATOR=';'
      else
        PATH_SEPARATOR=:
      fi
      rm -f conftest.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$as_lineno_2" ') 2>/dev/null; then
    	     CONFIG_SHELL=$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
    
    as_executable_p="test -f"
    
    # Sed expression to map a string onto a valid CPP name.
    as_tr_cpp="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="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.
    $as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=$PATH_SEPARATOR; export 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
    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=
    PACKAGE_TARNAME=
    PACKAGE_VERSION=
    PACKAGE_STRING=
    PACKAGE_BUGREPORT=
    
    ac_unique_file="Parser/Gmsh.y"
    # 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"
    
    
    # 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 $srcdir" >&2
       { (exit 1); exit 1; }; }
      fi
    fi
    srcdir=`echo "$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=$target_alias
    ac_env_CC_set=${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=$CFLAGS
    ac_env_LDFLAGS_set=${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=$CPPFLAGS
    ac_env_CXX_set=${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=$CXXFLAGS
    ac_env_CPP_set=${CPP+set}
    ac_env_CPP_value=$CPP
    ac_cv_env_CPP_set=${CPP+set}
    ac_cv_env_CPP_value=$CPP
    ac_env_CXXCPP_set=${CXXCPP+set}
    ac_env_CXXCPP_value=$CXXCPP
    ac_cv_env_CXXCPP_set=${CXXCPP+set}
    ac_cv_env_CXXCPP_value=$CXXCPP
    
    #
    # 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 this package 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
    _ACEOF
    fi
    
    if test -n "$ac_init_help"; then
    
      cat <<\_ACEOF
    
    Optional Features:
      --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
      --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
      --enable-gui            build the graphical user interface (default=yes)
      --enable-parallel       enable parallel version (default=no)
      --enable-triangle       compile Triangle if available (default=yes)
    
    Optional Packages:
      --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
      --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
      --with-gsl-prefix=PFX   prefix where GSL is installed
      --with-fltk-prefix=PFX  prefix where FLTK is installed
    
    Some influential environment variables:
      CC          C compiler command
      CFLAGS      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>
      CXX         C++ compiler command
      CXXFLAGS    C++ compiler flags
      CPP         C preprocessor
      CXXCPP      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.
    
    _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
    # Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
    # absolute.
    ac_abs_builddir=`cd "$ac_dir" && cd $ac_builddir && pwd`
    ac_abs_top_builddir=`cd "$ac_dir" && cd $ac_top_builddir && pwd`
    ac_abs_srcdir=`cd "$ac_dir" && cd $ac_srcdir && pwd`
    ac_abs_top_srcdir=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
    
        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
        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
    
    Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
    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 $as_me, which was
    generated by GNU Autoconf 2.53.  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.
    # Also quote any args containing shell meta-characters.
    ac_configure_args=
    ac_sep=
    for ac_arg
    do
      case $ac_arg in
      -no-create | --no-create | --no-creat | --no-crea | --no-cre \
      | --no-cr | --no-c | -n ) continue ;;
      -no-recursion | --no-recursion | --no-recursio | --no-recursi \
      | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
        continue ;;
      *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
        ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
      esac
      case " $ac_configure_args " in
        *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
        *) ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
           ac_sep=" " ;;
      esac
      # Get rid of the leading space.
    done
    
    # 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_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
          ;;
        esac;
    }
        echo
        if test -s confdefs.h; then
          cat <<\_ASBOX
    ## ----------- ##
    ## confdefs.h. ##
    ## ----------- ##
    _ASBOX
          echo
          sed "/^$/d" confdefs.h
          echo
        fi
        test "$ac_signal" != 0 &&
          echo "$as_me: caught signal $ac_signal"
        echo "$as_me: exit $exit_status"
      } >&5
      rm -f core 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
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    # Check whether --with-gsl-prefix or --without-gsl-prefix was given.
    if test "${with_gsl_prefix+set}" = set; then
      withval="$with_gsl_prefix"
      GSL_PREFIX=$withval
    else
      GSL_PREFIX="$GSL_DIR"
    fi;
    
    # Check whether --with-fltk-prefix or --without-fltk-prefix was given.
    if test "${with_fltk_prefix+set}" = set; then
      withval="$with_fltk_prefix"
      FLTK_PREFIX=$withval
    else
      FLTK_PREFIX="$FLTK_DIR"
    fi;
    
    # Check whether --enable-gui or --disable-gui was given.
    if test "${enable_gui+set}" = set; then
      enableval="$enable_gui"
    
    fi;
    
    # Check whether --enable-parallel or --disable-parallel was given.
    if test "${enable_parallel+set}" = set; then
      enableval="$enable_parallel"
    
    fi;
    
    # Check whether --enable-triangle or --disable-triangle was given.
    if test "${enable_triangle+set}" = set; then
      enableval="$enable_triangle"
    
    fi;
    
    UNAME=`uname`
    UVERSION=`uname -r | sed -e '1,$s/[^0-9]//g'`
    if test "x${UNAME}" = "xIRIX64"; then
      UNAME="IRIX"
    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
    
    
    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 $# != 0; then
        # We chose a different compiler from the bogus one.
        # However, it has the same basename, so the bogon will be chosen
        # first if we set CC to just the basename; use the full file name.
        shift
        set dummy "$as_dir/$ac_word" ${1+"$@"}
        shift
        ac_cv_prog_CC="$@"
      fi
    fi
    fi
    fi
    CC=$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:$LINENO: error: no acceptable C compiler found in \$PATH" >&5
    echo "$as_me: error: no acceptable C compiler found in \$PATH" >&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); }
    
    cat >conftest.$ac_ext <<_ACEOF
    #line $LINENO "configure"
    #include "confdefs.h"
    
    #ifdef F77_DUMMY_MAIN
    #  ifdef __cplusplus
         extern "C"
    #  endif
       int F77_DUMMY_MAIN() { return 1; }
    #endif
    int
    main ()
    {
    
      ;
      return 0;
    }
    _ACEOF
    ac_clean_files_save=$ac_clean_files
    ac_clean_files="$ac_clean_files a.out a.exe"
    # 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" >&5
    echo $ECHO_N "checking for C compiler default output... $ECHO_C" >&6
    ac_link_default=`echo "$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=
    for ac_file in `ls a_out.exe a.exe conftest.exe 2>/dev/null;
                    ls a.out conftest 2>/dev/null;
                    ls a.* conftest.* 2>/dev/null`; do
      case $ac_file in
        *.$ac_ext | *.o | *.obj | *.xcoff | *.tds | *.d | *.pdb | *.xSYM ) ;;
        a.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 --akim.
              export ac_cv_exeext
              break;;
        * ) break;;
      esac
    done
    else
      echo "$as_me: failed program was:" >&5
    cat conftest.$ac_ext >&5
    { { echo "$as_me:$LINENO: error: C compiler cannot create executables" >&5
    echo "$as_me: error: C compiler cannot create executables" >&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'." >&5
    echo "$as_me: error: cannot run C compiled programs.
    If you meant to cross compile, use \`--host'." >&2;}
       { (exit 1); exit 1; }; }
        fi
      fi
    fi
    echo "$as_me:$LINENO: result: yes" >&5
    echo "${ECHO_T}yes" >&6
    
    rm -f a.out a.exe conftest$ac_cv_exeext
    ac_clean_files=$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 `(ls conftest.exe; ls conftest; ls conftest.*) 2>/dev/null`; do
      case $ac_file in
        *.$ac_ext | *.o | *.obj | *.xcoff | *.tds | *.d | *.pdb ) ;;
        *.* ) 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" >&5
    echo "$as_me: error: cannot compute suffix of executables: cannot compile and link" >&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
    #line $LINENO "configure"
    #include "confdefs.h"
    
    #ifdef F77_DUMMY_MAIN
    #  ifdef __cplusplus
         extern "C"
    #  endif
       int F77_DUMMY_MAIN() { return 1; }
    #endif
    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 ) ;;
        *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
           break;;
      esac
    done
    else
      echo "$as_me: failed program was:" >&5
    cat conftest.$ac_ext >&5
    { { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile" >&5
    echo "$as_me: error: cannot compute suffix of object files: cannot compile" >&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_c_compiler_gnu+set}" = set; then
      echo $ECHO_N "(cached) $ECHO_C" >&6
    else
      cat >conftest.$ac_ext <<_ACEOF
    #line $LINENO "configure"
    #include "confdefs.h"
    
    #ifdef F77_DUMMY_MAIN
    #  ifdef __cplusplus
         extern "C"
    #  endif
       int F77_DUMMY_MAIN() { return 1; }
    #endif
    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 $ac_compile) 2>&5
      ac_status=$?
      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
    cat conftest.$ac_ext >&5
    ac_compiler_gnu=no
    fi
    rm -f conftest.$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
    #line $LINENO "configure"
    #include "confdefs.h"
    
    #ifdef F77_DUMMY_MAIN
    #  ifdef __cplusplus
         extern "C"
    #  endif
       int F77_DUMMY_MAIN() { return 1; }
    #endif
    int
    main ()
    {
    
      ;
      return 0;
    }
    _ACEOF
    rm -f conftest.$ac_objext
    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
      (eval $ac_compile) 2>&5
      ac_status=$?
      echo "$as_me:$LINENO: \$? = $ac_status" >&5
      (exit $ac_status); } &&
             { ac_try='test -s conftest.$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
    cat conftest.$ac_ext >&5
    ac_cv_prog_cc_g=no
    fi
    rm -f conftest.$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 "$GCC" = yes; then
        CFLAGS="-O2"
      else
        CFLAGS=
      fi
    fi
    # Some people use a C++ compiler to compile C.  Since we use `exit',
    # in C++ we need to declare it.  In case someone uses the same compiler
    # for both compiling C and C++ we need to have the C++ compiler decide
    # the declaration of exit, since it's the most demanding environment.
    cat >conftest.$ac_ext <<_ACEOF
    #ifndef __cplusplus
      choke me
    #endif
    _ACEOF
    rm -f conftest.$ac_objext
    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
      (eval $ac_compile) 2>&5
      ac_status=$?
      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 $ac_status); }; }; then
      for ac_declaration in \
       ''\
       '#include <stdlib.h>' \
       'extern "C" void std::exit (int) throw (); using std::exit;' \
       'extern "C" void std::exit (int); using std::exit;' \
       'extern "C" void exit (int) throw ();' \
       'extern "C" void exit (int);' \
       'void exit (int);'
    do
      cat >conftest.$ac_ext <<_ACEOF
    #line $LINENO "configure"
    #include "confdefs.h"
    #include <stdlib.h>
    $ac_declaration
    #ifdef F77_DUMMY_MAIN
    #  ifdef __cplusplus
         extern "C"
    #  endif
       int F77_DUMMY_MAIN() { return 1; }
    #endif
    int
    main ()
    {
    exit (42);
      ;
      return 0;
    }
    _ACEOF
    rm -f conftest.$ac_objext
    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
      (eval $ac_compile) 2>&5
      ac_status=$?
      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
    cat conftest.$ac_ext >&5
    continue
    fi
    rm -f conftest.$ac_objext conftest.$ac_ext
      cat >conftest.$ac_ext <<_ACEOF
    #line $LINENO "configure"
    #include "confdefs.h"
    $ac_declaration
    #ifdef F77_DUMMY_MAIN
    #  ifdef __cplusplus
         extern "C"
    #  endif
       int F77_DUMMY_MAIN() { return 1; }
    #endif
    int
    main ()
    {
    exit (42);
      ;
      return 0;
    }
    _ACEOF
    rm -f conftest.$ac_objext
    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
      (eval $ac_compile) 2>&5
      ac_status=$?
      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
    cat conftest.$ac_ext >&5
    fi
    rm -f conftest.$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 "$as_me: failed program was:" >&5
    cat conftest.$ac_ext >&5
    fi
    rm -f conftest.$ac_objext conftest.$ac_ext
    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
    
    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
    #line $LINENO "configure"
    #include "confdefs.h"
    
    #ifdef F77_DUMMY_MAIN
    #  ifdef __cplusplus
         extern "C"
    #  endif
       int F77_DUMMY_MAIN() { return 1; }
    #endif
    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 $ac_compile) 2>&5
      ac_status=$?
      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
    cat conftest.$ac_ext >&5
    ac_compiler_gnu=no
    fi
    rm -f conftest.$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
    #line $LINENO "configure"
    #include "confdefs.h"
    
    #ifdef F77_DUMMY_MAIN
    #  ifdef __cplusplus
         extern "C"
    #  endif
       int F77_DUMMY_MAIN() { return 1; }
    #endif
    int
    main ()
    {
    
      ;
      return 0;
    }
    _ACEOF
    rm -f conftest.$ac_objext
    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
      (eval $ac_compile) 2>&5
      ac_status=$?
      echo "$as_me:$LINENO: \$? = $ac_status" >&5
      (exit $ac_status); } &&
             { ac_try='test -s conftest.$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
    cat conftest.$ac_ext >&5
    ac_cv_prog_cxx_g=no
    fi
    rm -f conftest.$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 "$GXX" = yes; then
        CXXFLAGS="-O2"
      else
        CXXFLAGS=
      fi
    fi
    for ac_declaration in \
       ''\
       '#include <stdlib.h>' \
       'extern "C" void std::exit (int) throw (); using std::exit;' \
       'extern "C" void std::exit (int); using std::exit;' \
       'extern "C" void exit (int) throw ();' \
       'extern "C" void exit (int);' \
       'void exit (int);'
    do
      cat >conftest.$ac_ext <<_ACEOF
    #line $LINENO "configure"
    #include "confdefs.h"
    #include <stdlib.h>
    $ac_declaration
    #ifdef F77_DUMMY_MAIN
    #  ifdef __cplusplus
         extern "C"
    #  endif
       int F77_DUMMY_MAIN() { return 1; }
    #endif
    int
    main ()
    {
    exit (42);
      ;
      return 0;
    }
    _ACEOF
    rm -f conftest.$ac_objext
    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
      (eval $ac_compile) 2>&5
      ac_status=$?
      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
    cat conftest.$ac_ext >&5
    continue
    fi
    rm -f conftest.$ac_objext conftest.$ac_ext
      cat >conftest.$ac_ext <<_ACEOF
    #line $LINENO "configure"
    #include "confdefs.h"
    $ac_declaration
    #ifdef F77_DUMMY_MAIN
    #  ifdef __cplusplus
         extern "C"
    #  endif
       int F77_DUMMY_MAIN() { return 1; }
    #endif
    int
    main ()
    {
    exit (42);
      ;
      return 0;
    }
    _ACEOF
    rm -f conftest.$ac_objext
    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
      (eval $ac_compile) 2>&5
      ac_status=$?
      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
    cat conftest.$ac_ext >&5
    fi
    rm -f conftest.$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=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
    
    
    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" "$CC -E -traditional-cpp" "/lib/cpp"
        do
          ac_preproc_ok=false
    for ac_c_preproc_warn_flag in '' yes
    do
      # Use a header file that comes with gcc, so configuring glibc
      # with a fresh cross-compiler works.
      # On the NeXT, cc -E runs the code through the compiler's parser,
      # not just through cpp. "Syntax error" is here to catch this case.
      cat >conftest.$ac_ext <<_ACEOF
    #line $LINENO "configure"
    #include "confdefs.h"
    #include <assert.h>
                         Syntax error
    _ACEOF
    if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
      (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
      ac_status=$?
      egrep -v '^ *\+' conftest.er1 >conftest.err
      rm -f conftest.er1
      cat conftest.err >&5
      echo "$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
      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
      cat 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
    #line $LINENO "configure"
    #include "confdefs.h"
    #include <ac_nonexistent.h>
    _ACEOF
    if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
      (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
      ac_status=$?
      egrep -v '^ *\+' conftest.er1 >conftest.err
      rm -f conftest.er1
      cat conftest.err >&5
      echo "$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
      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
      cat 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}$CPP" >&6
    ac_preproc_ok=false
    for ac_c_preproc_warn_flag in '' yes
    do
      # Use a header file that comes with gcc, so configuring glibc
      # with a fresh cross-compiler works.
      # On the NeXT, cc -E runs the code through the compiler's parser,
      # not just through cpp. "Syntax error" is here to catch this case.
      cat >conftest.$ac_ext <<_ACEOF
    #line $LINENO "configure"
    #include "confdefs.h"
    #include <assert.h>
                         Syntax error
    _ACEOF
    if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
      (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
      ac_status=$?
      egrep -v '^ *\+' conftest.er1 >conftest.err
      rm -f conftest.er1
      cat conftest.err >&5
      echo "$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
      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
      cat 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
    #line $LINENO "configure"
    #include "confdefs.h"
    #include <ac_nonexistent.h>
    _ACEOF
    if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
      (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
      ac_status=$?
      egrep -v '^ *\+' conftest.er1 >conftest.err
      rm -f conftest.er1
      cat conftest.err >&5
      echo "$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
      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
      cat 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" >&5
    echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check" >&2;}
       { (exit 1); exit 1; }; }
    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
    
    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
    
    # Extract the first word of "ar", so it can be a program name with args.
    set dummy ar; 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_path_AR+set}" = set; then
      echo $ECHO_N "(cached) $ECHO_C" >&6
    else
      case $AR in
      [\\/]* | ?:[\\/]*)
      ac_cv_path_AR="$AR" # Let the user override the test with a path.
      ;;
      *)
      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_path_AR="$as_dir/$ac_word$ac_exec_ext"
        echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
    done
    
      ;;
    esac
    fi
    AR=$ac_cv_path_AR
    
    if test -n "$AR"; then
      echo "$as_me:$LINENO: result: $AR" >&5
    echo "${ECHO_T}$AR" >&6
    else
      echo "$as_me:$LINENO: result: no" >&5
    echo "${ECHO_T}no" >&6
    fi
    
    
    
    
    if test "x${AR}" = "x:"; then
      { { echo "$as_me:$LINENO: error: Could not find the library archiver" >&5
    echo "$as_me: error: Could not find the library archiver" >&2;}
       { (exit aborting.); exit aborting.; }; }
    fi
    AR="${AR} ruvs"
    
    GMSH_DIRS="Common DataStr Geo Mesh Numeric Parallel Parser Plugin"
    
    if test "x$enable_gui" != "xno"; then
      GMSH_DIRS="${GMSH_DIRS} Graphics Fltk jpeg"
      GMSH_LIBS="-Llib -lGmshFltk -lGmshParser -lGmshGraphics -lGmshMesh -lGmshGeo -lGmshNumeric -lGmshCommon -lGmshDataStr -lGmshJpeg -lGmshPlugin -lGmshParallel"
      VERSION_FLAGS="-D_FLTK"
      # Extract the first word of "fltk-config", so it can be a program name with args.
    set dummy fltk-config; 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_path_FLTKCONFIG+set}" = set; then
      echo $ECHO_N "(cached) $ECHO_C" >&6
    else
      case $FLTKCONFIG in
      [\\/]* | ?:[\\/]*)
      ac_cv_path_FLTKCONFIG="$FLTKCONFIG" # Let the user override the test with a path.
      ;;
      *)
      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_path_FLTKCONFIG="$as_dir/$ac_word$ac_exec_ext"
        echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
    done
    
      ;;
    esac
    fi
    FLTKCONFIG=$ac_cv_path_FLTKCONFIG
    
    if test -n "$FLTKCONFIG"; then
      echo "$as_me:$LINENO: result: $FLTKCONFIG" >&5
    echo "${ECHO_T}$FLTKCONFIG" >&6
    else
      echo "$as_me:$LINENO: result: no" >&5
    echo "${ECHO_T}no" >&6
    fi
    
      if test "x${FLTKCONFIG}" = "x" -a "x${FLTK_PREFIX}" != "x" ; then
        # Extract the first word of "fltk-config", so it can be a program name with args.
    set dummy fltk-config; 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_path_FLTKCONFIG+set}" = set; then
      echo $ECHO_N "(cached) $ECHO_C" >&6
    else
      case $FLTKCONFIG in
      [\\/]* | ?:[\\/]*)
      ac_cv_path_FLTKCONFIG="$FLTKCONFIG" # Let the user override the test with a path.
      ;;
      *)
      as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in ${FLTK_PREFIX}
    do
      IFS=$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_path_FLTKCONFIG="$as_dir/$ac_word$ac_exec_ext"
        echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
    done
    
      test -z "$ac_cv_path_FLTKCONFIG" && ac_cv_path_FLTKCONFIG=""""
      ;;
    esac
    fi
    FLTKCONFIG=$ac_cv_path_FLTKCONFIG
    
    if test -n "$FLTKCONFIG"; then
      echo "$as_me:$LINENO: result: $FLTKCONFIG" >&5
    echo "${ECHO_T}$FLTKCONFIG" >&6
    else
      echo "$as_me:$LINENO: result: no" >&5
    echo "${ECHO_T}no" >&6
    fi
    
      fi
      if test "x$FLTKCONFIG" = "x"; then
        { { echo "$as_me:$LINENO: error: Could not find fltk-config. Try --with-prefix-fltk?" >&5
    echo "$as_me: error: Could not find fltk-config. Try --with-prefix-fltk?" >&2;}
       { (exit 1); exit 1; }; }
      fi
      GUI_LIBS="`$FLTKCONFIG --use-gl --ldstaticflags`"
      GUI_INCLUDE="`$FLTKCONFIG --use-gl --cxxflags`"
    else
      GMSH_DIRS="${GMSH_DIRS} Box"
      GMSH_LIBS="-Llib -lGmshBox -lGmshParser -lGmshMesh -lGmshGeo -lGmshNumeric -lGmshPlugin -lGmshCommon -lGmshDataStr -lGmshParallel"
      VERSION_FLAGS="-D_BLACKBOX"
      GUI_LIBS=""
      GUI_INCLUDE=""
    fi
    
    echo "$as_me:$LINENO: checking for ./Triangle/triangle.c" >&5
    echo $ECHO_N "checking for ./Triangle/triangle.c... $ECHO_C" >&6
    if test "${ac_cv_file___Triangle_triangle_c+set}" = set; then
      echo $ECHO_N "(cached) $ECHO_C" >&6
    else
      test "$cross_compiling" = yes &&
      { { echo "$as_me:$LINENO: error: cannot check for file existence when cross compiling" >&5
    echo "$as_me: error: cannot check for file existence when cross compiling" >&2;}
       { (exit 1); exit 1; }; }
    if test -r "./Triangle/triangle.c"; then
      ac_cv_file___Triangle_triangle_c=yes
    else
      ac_cv_file___Triangle_triangle_c=no
    fi
    fi
    echo "$as_me:$LINENO: result: $ac_cv_file___Triangle_triangle_c" >&5
    echo "${ECHO_T}$ac_cv_file___Triangle_triangle_c" >&6
    if test $ac_cv_file___Triangle_triangle_c = yes; then
      HAVE_TRIANGLE="yes"
    else
      HAVE_TRIANGLE="no"
    fi
    
    if test "x${HAVE_TRIANGLE}" = "xyes" -a "x$enable_triangle" != "xno"; then
      GMSH_DIRS="${GMSH_DIRS} Triangle"
      GMSH_LIBS="${GMSH_LIBS} -lGmshTriangle"
      VERSION_FLAGS="${VERSION_FLAGS} -DHAVE_TRIANGLE"
    fi
    
    if test "x$enable_parallel" = "xyes"; then
      VERSION_FLAGS="${VERSION_FLAGS} -DPARALLEL"
    fi
    
    
    
    
    OPT_FLAGS="${CXXFLAGS}"
    LINKER="${CXX}"
    POSTBUILD=""
    if test "x$enable_gui" != "xno"; then
      GMSH_LIBS="${GMSH_LIBS} ${GUI_LIBS}"
    else
      GMSH_LIBS="${GMSH_LIBS} -lm";
    fi
    
    case "$UNAME" in
    
      CYGWIN* | MINGW*)
        OS_FLAGS="-mwindows -DWIN32 -D_LITTLE_ENDIAN"
        LINKER="g++ -Wl,--subsystem,windows -mwindows"
        if test "x$enable_gui" != "xno"; then
          GMSH_LIBS="${GMSH_LIBS} Fltk/Win32Icon.res"
        fi
        ;;
    
      Darwin*)
        OS_FLAGS="-D_NODLL"
        POSTBUILD="/Developer/Tools/Rez -t APPL -o bin/gmsh Fltk/MacRes.r"
        ;;
    
      Linux*)
        OS_FLAGS="-D_LITTLE_ENDIAN"
        GMSH_LIBS="${GMSH_LIBS} -ldl"
        ;;
    
      OSF1*)
        OS_FLAGS="-D_LITTLE_ENDIAN"
        ;;
    
      AIX*)
        OS_FLAGS="-D_BSD -D_NODLL"
        ;;
    
      IRIX*)
        OS_FLAGS="-mips3 -n32"
        CXX="CC"
        CC="cc"
        OPT_FLAGS="-O2 -OPT:Olimit=0 -LANG:std"
        AR="CC -mips3 -n32 -ar -o"
        LINKER="CC -O2 -mips3 -n32"
        ;;
    
      SunOS*)
        OS_FLAGS="-D_NODLL"
        CXX="g++"
        CC="gcc"
        GMSH_LIBS="${GMSH_LIBS} -lsocket -lnsl -ldl"
        ;;
    
      *)
        OS_FLAGS="-D_NODLL"
        ;;
    
    esac
    
    
    
    
    
    
    
    
    
    if test "x${GSL_PREFIX}" = "x"; then
      LDFLAGS="-lgslcblas"
    else
      LDFLAGS="-L${GSL_PREFIX}/lib -lgslcblas"
    fi
    
    echo "$as_me:$LINENO: checking for gsl_vector_alloc in -lgsl" >&5
    echo $ECHO_N "checking for gsl_vector_alloc in -lgsl... $ECHO_C" >&6
    if test "${ac_cv_lib_gsl_gsl_vector_alloc+set}" = set; then
      echo $ECHO_N "(cached) $ECHO_C" >&6
    else
      ac_check_lib_save_LIBS=$LIBS
    LIBS="-lgsl  $LIBS"
    cat >conftest.$ac_ext <<_ACEOF
    #line $LINENO "configure"
    #include "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 gsl_vector_alloc ();
    #ifdef F77_DUMMY_MAIN
    #  ifdef __cplusplus
         extern "C"
    #  endif
       int F77_DUMMY_MAIN() { return 1; }
    #endif
    int
    main ()
    {
    gsl_vector_alloc ();
      ;
      return 0;
    }
    _ACEOF
    rm -f conftest.$ac_objext conftest$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 $ac_status); } &&
             { ac_try='test -s conftest$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 $ac_status); }; }; then
      ac_cv_lib_gsl_gsl_vector_alloc=yes
    else
      echo "$as_me: failed program was:" >&5
    cat conftest.$ac_ext >&5
    ac_cv_lib_gsl_gsl_vector_alloc=no
    fi
    rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
    LIBS=$ac_check_lib_save_LIBS
    fi
    echo "$as_me:$LINENO: result: $ac_cv_lib_gsl_gsl_vector_alloc" >&5
    echo "${ECHO_T}$ac_cv_lib_gsl_gsl_vector_alloc" >&6
    if test $ac_cv_lib_gsl_gsl_vector_alloc = yes; then
      GSL="yes"
    else
      GSL="no"
    fi
    
    if test "x${GSL_PREFIX}" = "x"; then
      GSL_LIBS="-lgsl -lgslcblas"
    else
      GSL_LIBS="-L${GSL_PREFIX}/lib -lgsl -lgslcblas"
      GSL_INCLUDE="-I${GSL_PREFIX}/include"
    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.
      # 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
    #line $LINENO "configure"
    #include "confdefs.h"
    #include <assert.h>
                         Syntax error
    _ACEOF
    if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
      (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
      ac_status=$?
      egrep -v '^ *\+' conftest.er1 >conftest.err
      rm -f conftest.er1
      cat conftest.err >&5
      echo "$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
      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
      cat 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
    #line $LINENO "configure"
    #include "confdefs.h"
    #include <ac_nonexistent.h>
    _ACEOF
    if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
      (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
      ac_status=$?
      egrep -v '^ *\+' conftest.er1 >conftest.err
      rm -f conftest.er1
      cat conftest.err >&5
      echo "$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
      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
      cat 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}$CXXCPP" >&6
    ac_preproc_ok=false
    for ac_cxx_preproc_warn_flag in '' yes
    do
      # Use a header file that comes with gcc, so configuring glibc
      # with a fresh cross-compiler works.
      # On the NeXT, cc -E runs the code through the compiler's parser,
      # not just through cpp. "Syntax error" is here to catch this case.
      cat >conftest.$ac_ext <<_ACEOF
    #line $LINENO "configure"
    #include "confdefs.h"
    #include <assert.h>
                         Syntax error
    _ACEOF
    if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
      (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
      ac_status=$?
      egrep -v '^ *\+' conftest.er1 >conftest.err
      rm -f conftest.er1
      cat conftest.err >&5
      echo "$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
      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
      cat 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
    #line $LINENO "configure"
    #include "confdefs.h"
    #include <ac_nonexistent.h>
    _ACEOF
    if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
      (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
      ac_status=$?
      egrep -v '^ *\+' conftest.er1 >conftest.err
      rm -f conftest.er1
      cat conftest.err >&5
      echo "$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
      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
      cat 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" >&5
    echo "$as_me: error: C++ preprocessor \"$CXXCPP\" fails sanity check" >&2;}
       { (exit 1); exit 1; }; }
    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 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
    #line $LINENO "configure"
    #include "confdefs.h"
    #include <stdlib.h>
    #include <stdarg.h>
    #include <string.h>
    #include <float.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=$?
      egrep -v '^ *\+' conftest.er1 >conftest.err
      rm -f conftest.er1
      cat conftest.err >&5
      echo "$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
      else
        ac_cpp_err=
      fi
    else
      ac_cpp_err=yes
    fi
    if test -z "$ac_cpp_err"; then
      ac_cv_header_stdc=yes
    else
      echo "$as_me: failed program was:" >&5
      cat conftest.$ac_ext >&5
      ac_cv_header_stdc=no
    fi
    rm -f conftest.err conftest.$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
    #line $LINENO "configure"
    #include "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
    #line $LINENO "configure"
    #include "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
    #line $LINENO "configure"
    #include "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
    cat conftest.$ac_ext >&5
    ( exit $ac_status )
    ac_cv_header_stdc=no
    fi
    rm -f core core.* *.core conftest$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
    #line $LINENO "configure"
    #include "confdefs.h"
    $ac_includes_default
    
    #include <$ac_header>
    _ACEOF
    rm -f conftest.$ac_objext
    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
      (eval $ac_compile) 2>&5
      ac_status=$?
      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 "$as_me: failed program was:" >&5
    cat conftest.$ac_ext >&5
    eval "$as_ac_Header=no"
    fi
    rm -f conftest.$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 sys/time.h sys/resource.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
    #line $LINENO "configure"
    #include "confdefs.h"
    $ac_includes_default
    #include <$ac_header>
    _ACEOF
    rm -f conftest.$ac_objext
    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
      (eval $ac_compile) 2>&5
      ac_status=$?
      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
    cat conftest.$ac_ext >&5
    ac_header_compiler=no
    fi
    rm -f conftest.$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
    #line $LINENO "configure"
    #include "confdefs.h"
    #include <$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=$?
      egrep -v '^ *\+' conftest.er1 >conftest.err
      rm -f conftest.er1
      cat conftest.err >&5
      echo "$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
      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
      cat 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 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: $ac_header: proceeding with the preprocessor's result" >&5
    echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
      no:yes )
        { echo "$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: $ac_header: proceeding with the preprocessor's result" >&5
    echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
    esac
    echo "$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
    
    
    ac_config_files="$ac_config_files variables"
    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 overriden 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 cmp -s $cache_file confcache; 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
    
    # Transform confdefs.h into DEFS.
    # Protect against shell expansion while executing Makefile rules.
    # Protect against Makefile macro expansion.
    #
    # If the first sed substitution is executed (which looks for macros that
    # take arguments), then we branch to the quote section.  Otherwise,
    # look for a macro that doesn't take arguments.
    cat >confdef2opt.sed <<\_ACEOF
    t clear
    : clear
    s,^[ 	]*#[ 	]*define[ 	][ 	]*\([^ 	(][^ 	(]*([^)]*)\)[ 	]*\(.*\),-D\1=\2,g
    t quote
    s,^[ 	]*#[ 	]*define[ 	][ 	]*\([^ 	][^ 	]*\)[ 	]*\(.*\),-D\1=\2,g
    t quote
    d
    : quote
    s,[ 	`~#$^&*(){}\\|;'"<>?],\\&,g
    s,\[,\\&,g
    s,\],\\&,g
    s,\$,$$,g
    p
    _ACEOF
    # We use echo to avoid assuming a particular line-breaking character.
    # The extra dot is to prevent the shell from consuming trailing
    # line-breaks from the sub-command output.  A line-break within
    # single-quotes doesn't work because, if this script is created in a
    # platform that uses two characters for line-breaks (e.g., DOS), tr
    # would break.
    ac_LF_and_DOT=`echo; echo .`
    DEFS=`sed -n -f confdef2opt.sed confdefs.h | tr "$ac_LF_and_DOT" ' .'`
    rm -f confdef2opt.sed
    
    
    
    : ${CONFIG_STATUS=./config.status}
    ac_clean_files_save=$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
    SHELL=\${CONFIG_SHELL-$SHELL}
    _ACEOF
    
    cat >>$CONFIG_STATUS <<\_ACEOF
    
    ## --------------------- ##
    ## M4sh Initialization.  ##
    ## --------------------- ##
    
    # Be Bourne compatible
    if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
      emulate sh
      NULLCMD=:
    elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
      set -o posix
    fi
    
    # NLS nuisances.
    # Support unset when possible.
    if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
      as_unset=unset
    else
      as_unset=false
    fi
    
    (set +x; test -n "`(LANG=C; export LANG) 2>&1`") &&
        { $as_unset LANG || test "${LANG+set}" != set; } ||
          { LANG=C; export LANG; }
    (set +x; test -n "`(LC_ALL=C; export LC_ALL) 2>&1`") &&
        { $as_unset LC_ALL || test "${LC_ALL+set}" != set; } ||
          { LC_ALL=C; export LC_ALL; }
    (set +x; test -n "`(LC_TIME=C; export LC_TIME) 2>&1`") &&
        { $as_unset LC_TIME || test "${LC_TIME+set}" != set; } ||
          { LC_TIME=C; export LC_TIME; }
    (set +x; test -n "`(LC_CTYPE=C; export LC_CTYPE) 2>&1`") &&
        { $as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set; } ||
          { LC_CTYPE=C; export LC_CTYPE; }
    (set +x; test -n "`(LANGUAGE=C; export LANGUAGE) 2>&1`") &&
        { $as_unset LANGUAGE || test "${LANGUAGE+set}" != set; } ||
          { LANGUAGE=C; export LANGUAGE; }
    (set +x; test -n "`(LC_COLLATE=C; export LC_COLLATE) 2>&1`") &&
        { $as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set; } ||
          { LC_COLLATE=C; export LC_COLLATE; }
    (set +x; test -n "`(LC_NUMERIC=C; export LC_NUMERIC) 2>&1`") &&
        { $as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set; } ||
          { LC_NUMERIC=C; export LC_NUMERIC; }
    (set +x; test -n "`(LC_MESSAGES=C; export LC_MESSAGES) 2>&1`") &&
        { $as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set; } ||
          { LC_MESSAGES=C; export LC_MESSAGES; }
    
    
    # Name of the executable.
    as_me=`(basename "$0") 2>/dev/null ||
    $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" >conftest.sh
      echo  "exit 0"   >>conftest.sh
      chmod +x conftest.sh
      if (PATH=".;."; conftest.sh) >/dev/null 2>&1; then
        PATH_SEPARATOR=';'
      else
        PATH_SEPARATOR=:
      fi
      rm -f conftest.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$as_lineno_2" ') 2>/dev/null; then
    	     CONFIG_SHELL=$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
    
    as_executable_p="test -f"
    
    # Sed expression to map a string onto a valid CPP name.
    as_tr_cpp="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="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.
    $as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=$PATH_SEPARATOR; export 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 $as_me, which was
    generated by GNU Autoconf 2.53.  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
      -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
    
    Configuration files:
    $config_files
    
    Report bugs to <bug-autoconf@gnu.org>."
    _ACEOF
    
    cat >>$CONFIG_STATUS <<_ACEOF
    ac_cs_version="\\
    config.status
    configured by $0, generated by GNU Autoconf 2.53,
      with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
    
    Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
    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
    _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[^=]*=\(.*\)'`
        shift
        set dummy "$ac_option" "$ac_optarg" ${1+"$@"}
        shift
        ;;
      -*);;
      *) # This is not an option, so the user has probably given explicit
         # arguments.
         ac_need_defaults=false;;
      esac
    
      case $1 in
      # Handling of the options.
    _ACEOF
    cat >>$CONFIG_STATUS <<_ACEOF
      -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
        echo "running $SHELL $0 " $ac_configure_args " --no-create --no-recursion"
        exec $SHELL $0 $ac_configure_args --no-create --no-recursion ;;
    _ACEOF
    cat >>$CONFIG_STATUS <<\_ACEOF
      --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 )
        shift
        CONFIG_FILES="$CONFIG_FILES $1"
        ac_need_defaults=false;;
      --header | --heade | --head | --hea )
        shift
        CONFIG_HEADERS="$CONFIG_HEADERS $1"
        ac_need_defaults=false;;
    
      # 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
    
    _ACEOF
    
    
    
    
    
    cat >>$CONFIG_STATUS <<\_ACEOF
    for ac_config_target in $ac_config_targets
    do
      case "$ac_config_target" in
      # Handling of arguments.
      "variables" ) CONFIG_FILES="$CONFIG_FILES variables" ;;
      *) { { echo "$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
    fi
    
    # 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.
    : ${TMPDIR=/tmp}
    {
      tmp=`(umask 077 && mktemp -d -q "$TMPDIR/csXXXXXX") 2>/dev/null` &&
      test -n "$tmp" && test -d "$tmp"
    }  ||
    {
      tmp=$TMPDIR/cs$$-$RANDOM
      (umask 077 && mkdir $tmp)
    } ||
    {
       echo "$me: cannot create a temporary directory in $TMPDIR" >&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,@UNAME@,$UNAME,;t t
    s,@CC@,$CC,;t t
    s,@CFLAGS@,$CFLAGS,;t t
    s,@LDFLAGS@,$LDFLAGS,;t t
    s,@CPPFLAGS@,$CPPFLAGS,;t t
    s,@ac_ct_CC@,$ac_ct_CC,;t t
    s,@EXEEXT@,$EXEEXT,;t t
    s,@OBJEXT@,$OBJEXT,;t t
    s,@CXX@,$CXX,;t t
    s,@CXXFLAGS@,$CXXFLAGS,;t t
    s,@ac_ct_CXX@,$ac_ct_CXX,;t t
    s,@CPP@,$CPP,;t t
    s,@RANLIB@,$RANLIB,;t t
    s,@ac_ct_RANLIB@,$ac_ct_RANLIB,;t t
    s,@AR@,$AR,;t t
    s,@FLTKCONFIG@,$FLTKCONFIG,;t t
    s,@VERSION_FLAGS@,$VERSION_FLAGS,;t t
    s,@GUI_INCLUDE@,$GUI_INCLUDE,;t t
    s,@OPT_FLAGS@,$OPT_FLAGS,;t t
    s,@OS_FLAGS@,$OS_FLAGS,;t t
    s,@LINKER@,$LINKER,;t t
    s,@GMSH_DIRS@,$GMSH_DIRS,;t t
    s,@GMSH_LIBS@,$GMSH_LIBS,;t t
    s,@POSTBUILD@,$POSTBUILD,;t t
    s,@GSL_LIBS@,$GSL_LIBS,;t t
    s,@GSL_INCLUDE@,$GSL_INCLUDE,;t t
    s,@CXXCPP@,$CXXCPP,;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'`
      { case "$ac_dir" in
      [\\/]* | ?:[\\/]* ) as_incr_dir=;;
      *)                      as_incr_dir=.;;
    esac
    as_dummy="$ac_dir"
    for as_mkdir_dir in `IFS='/\\'; set X $as_dummy; shift; echo "$@"`; do
      case $as_mkdir_dir in
        # Skip DOS drivespec
        ?:) as_incr_dir=$as_mkdir_dir ;;
        *)
          as_incr_dir=$as_incr_dir/$as_mkdir_dir
          test -d "$as_incr_dir" ||
            mkdir "$as_incr_dir" ||
    	{ { echo "$as_me:$LINENO: error: cannot create \"$ac_dir\"" >&5
    echo "$as_me: error: cannot create \"$ac_dir\"" >&2;}
       { (exit 1); exit 1; }; }
        ;;
      esac
    done; }
    
      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
    # Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
    # absolute.
    ac_abs_builddir=`cd "$ac_dir" && cd $ac_builddir && pwd`
    ac_abs_top_builddir=`cd "$ac_dir" && cd $ac_top_builddir && pwd`
    ac_abs_srcdir=`cd "$ac_dir" && cd $ac_srcdir && pwd`
    ac_abs_top_srcdir=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
    
    
    
      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
    " $ac_file_inputs | (eval "$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
    
    { (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=:
      exec 5>/dev/null
      $SHELL $CONFIG_STATUS || 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
    
    
    echo "*******************************************************************"
    echo "Gmsh is configured for"
    echo "- Operating system: $UNAME"
    echo "- Version flags: $VERSION_FLAGS"
    echo "*******************************************************************"
    
    if test "x${HAVE_TRIANGLE}" = "xno"; then
      echo "*******************************************************************"
      echo "If you want to use Jonathan Shewchuk's Triangle as an alternative"
      echo "isotropic 2D mesh generator, please download Triangle from the"
      echo "author's web site at http://www.cs.cmu.edu/~quake/triangle.html,"
      echo "unpack the archive and copy the two files 'triangle.c' and"
      echo "'triangle.h' in the ./Triangle subdirectory. Then run ./configure"
      echo "again."
      echo ""
      echo "Please note that by doing so, you agree to Triangle's licencing"
      echo "requirements stated in ./Triangle/README. (Most notably, you may"
      echo "then only redistribute Gmsh if no compensation is received.)"
      echo "*******************************************************************"
    fi
    
    if test "x${GSL}" = "xno"; then
      echo "*******************************************************************"
      echo "Configure could not find the GNU Scientific Library (GSL):"
      echo "- if it is installed in a non-standard location, please run"
      echo "  ./configure again with the --with-gsl-prefix option"
      echo "- if it is not installed on your system, you can download it from"
      echo "  http://sources.redhat.com/gsl/"
      echo "*******************************************************************"
    fi