stk/configure

#! /bin/sh

# Guess values for system-dependent variables and create Makefiles.
# Generated automatically using autoconf version 2.7 
# Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
#
# This configure script is free software; the Free Software Foundation
# gives unlimited permission to copy, distribute and modify it.

# Defaults:
ac_help=
ac_default_prefix=/usr/local
# Any additions from configure.in:
ac_help="$ac_help
  --with-x                use the X Window System"
ac_help="$ac_help
	--with-fgmp		Use a free replacement of Gnu MP package"
ac_help="$ac_help
	--enable-hash		Enable hash table support"
ac_help="$ac_help
	--enable-posix		Enable posix support"
ac_help="$ac_help
	--enable-stklos		Provide support for STklos"
ac_help="$ac_help
	--enable-socket		Provide support for sockets"
ac_help="$ac_help
	--enable-regexp		Provide support for regular expressions"
ac_help="$ac_help
	--enable-process	Provide support for Unix processes"
ac_help="$ac_help
	--enable-html		Enable html support"
ac_help="$ac_help
	--enable-pixmap		Enable pixmap images support"
ac_help="$ac_help
	--enable-jpeg		Enable JPEG images support"
ac_help="$ac_help
	--enable-elf		Enable Dynamic Loading using ELF (Linux only)"
ac_help="$ac_help
	--enable-dld		Enable Dynamic Loading using DLD (Linux only)"
ac_help="$ac_help
	--enable-dynload	Enable Dynamic loading"

# Initialize some variables set by options.
# The variables have the same names as the options, with
# dashes changed to underlines.
build=NONE
cache_file=./config.cache
exec_prefix=NONE
host=NONE
no_create=
nonopt=NONE
no_recursion=
prefix=NONE
program_prefix=NONE
program_suffix=NONE
program_transform_name=s,x,x,
silent=
site=
srcdir=
target=NONE
verbose=
x_includes=NONE
x_libraries=NONE
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'

# Initialize some other variables.
subdirs=
MFLAGS= MAKEFLAGS=

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

  case "$ac_option" in
  -*=*) ac_optarg=`echo "$ac_option" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
  *) ac_optarg= ;;
  esac

  # 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 ;;
  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
    build="$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" ;;

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

  -disable-* | --disable-*)
    ac_feature=`echo $ac_option|sed -e 's/-*disable-//'`
    # Reject names that are not valid shell variable names.
    if test -n "`echo $ac_feature| sed 's/[-a-zA-Z0-9_]//g'`"; then
      { echo "configure: error: $ac_feature: invalid feature name" 1>&2; exit 1; }
    fi
    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
    eval "enable_${ac_feature}=no" ;;

  -enable-* | --enable-*)
    ac_feature=`echo $ac_option|sed -e 's/-*enable-//' -e 's/=.*//'`
    # Reject names that are not valid shell variable names.
    if test -n "`echo $ac_feature| sed 's/[-_a-zA-Z0-9]//g'`"; then
      { echo "configure: error: $ac_feature: invalid feature name" 1>&2; exit 1; }
    fi
    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
    case "$ac_option" in
      *=*) ;;
      *) 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)
    # 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 << EOF
Usage: configure [options] [host]
Options: [defaults in brackets after descriptions]
Configuration:
  --cache-file=FILE       cache test results in FILE
  --help                  print this message
  --no-create             do not create output files
  --quiet, --silent       do not print \`checking...' messages
  --version               print the version of autoconf that created configure
Directory and file names:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [$ac_default_prefix]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [same as prefix]
  --bindir=DIR            user executables in DIR [EPREFIX/bin]
  --sbindir=DIR           system admin executables in DIR [EPREFIX/sbin]
  --libexecdir=DIR        program executables in DIR [EPREFIX/libexec]
  --datadir=DIR           read-only architecture-independent data in DIR
                          [PREFIX/share]
  --sysconfdir=DIR        read-only single-machine data in DIR [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data in DIR
                          [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data in DIR [PREFIX/var]
  --libdir=DIR            object code libraries in DIR [EPREFIX/lib]
  --includedir=DIR        C header files in DIR [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc in DIR [/usr/include]
  --infodir=DIR           info documentation in DIR [PREFIX/info]
  --mandir=DIR            man documentation in DIR [PREFIX/man]
  --srcdir=DIR            find the sources in DIR [configure dir or ..]
  --program-prefix=PREFIX prepend PREFIX to installed program names
  --program-suffix=SUFFIX append SUFFIX to installed program names
  --program-transform-name=PROGRAM
                          run sed PROGRAM on installed program names
EOF
    cat << EOF
Host type:
  --build=BUILD           configure for building on BUILD [BUILD=HOST]
  --host=HOST             configure for HOST [guessed]
  --target=TARGET         configure for TARGET [TARGET=HOST]
Features and packages:
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --x-includes=DIR        X include files are in DIR
  --x-libraries=DIR       X library files are in DIR
EOF
    if test -n "$ac_help"; then
      echo "--enable and --with options recognized:$ac_help"
    fi
    exit 0 ;;

  -host | --host | --hos | --ho)
    ac_prev=host ;;
  -host=* | --host=* | --hos=* | --ho=*)
    host="$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)
    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 ;;
  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
    target="$ac_optarg" ;;

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

  -version | --version | --versio | --versi | --vers)
    echo "configure generated by autoconf version 2.7"
    exit 0 ;;

  -with-* | --with-*)
    ac_package=`echo $ac_option|sed -e 's/-*with-//' -e 's/=.*//'`
    # Reject names that are not valid shell variable names.
    if test -n "`echo $ac_package| sed 's/[-_a-zA-Z0-9]//g'`"; then
      { echo "configure: error: $ac_package: invalid package name" 1>&2; exit 1; }
    fi
    ac_package=`echo $ac_package| sed 's/-/_/g'`
    case "$ac_option" in
      *=*) ;;
      *) ac_optarg=yes ;;
    esac
    eval "with_${ac_package}='$ac_optarg'" ;;

  -without-* | --without-*)
    ac_package=`echo $ac_option|sed -e 's/-*without-//'`
    # Reject names that are not valid shell variable names.
    if test -n "`echo $ac_package| sed 's/[-a-zA-Z0-9_]//g'`"; then
      { echo "configure: error: $ac_package: invalid package name" 1>&2; exit 1; }
    fi
    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 "configure: error: $ac_option: invalid option; use --help to show usage" 1>&2; exit 1; }
    ;;

  *)
    if test -n "`echo $ac_option| sed 's/[-a-z0-9.]//g'`"; then
      echo "configure: warning: $ac_option: invalid host type" 1>&2
    fi
    if test "x$nonopt" != xNONE; then
      { echo "configure: error: can only configure for one host and one target at a time" 1>&2; exit 1; }
    fi
    nonopt="$ac_option"
    ;;

  esac
done

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

trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15

# File descriptor usage:
# 0 standard input
# 1 file creation
# 2 errors and warnings
# 3 some systems may open it to /dev/tty
# 4 used on the Kubota Titan
# 6 checking for... messages and results
# 5 compiler messages saved in config.log
if test "$silent" = yes; then
  exec 6>/dev/null
else
  exec 6>&1
fi
exec 5>./config.log

echo "\
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
" 1>&5

# Strip out --no-create and --no-recursion so they do not pile up.
# Also quote any args containing shell metacharacters.
ac_configure_args=
for ac_arg
do
  case "$ac_arg" in
  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
  | --no-cr | --no-c) ;;
  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;;
  *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
  ac_configure_args="$ac_configure_args '$ac_arg'" ;;
  *) ac_configure_args="$ac_configure_args $ac_arg" ;;
  esac
done

# NLS nuisances.
# Only set LANG and LC_ALL to C if already set.
# These must not be set unconditionally because not all systems understand
# e.g. LANG=C (notably SCO).
if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi

# 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

# A filename unique to this package, relative to the directory that
# configure is in, which we can look for to find out if srcdir is correct.
ac_unique_file=README

# 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_prog=$0
  ac_confdir=`echo $ac_prog|sed 's%/[^/][^/]*$%%'`
  test "x$ac_confdir" = "x$ac_prog" && ac_confdir=.
  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 "configure: error: can not find sources in $ac_confdir or .." 1>&2; exit 1; }
  else
    { echo "configure: error: can not find sources in $srcdir" 1>&2; exit 1; }
  fi
fi
srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'`

# 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 "loading site script $ac_site_file"
    . "$ac_site_file"
  fi
done

if test -r "$cache_file"; then
  echo "loading cache $cache_file"
  . $cache_file
else
  echo "creating cache $cache_file"
  > $cache_file
fi

ac_ext=c
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='echo $CPP $CPPFLAGS 1>&5;
$CPP $CPPFLAGS'
ac_compile='echo ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5;
${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5 2>&5'
ac_link='echo ${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5;
${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5 2>&5'

if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
  # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu.
  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
    ac_n= ac_c='
' ac_t='	'
  else
    ac_n=-n ac_c= ac_t=
  fi
else
  ac_n= ac_c='\c' ac_t=
fi



# I have a lot of problems with cache. So ...
/bin/rm -f ./config.cache Src/config.cache Tk/config.cache Tcl/config.cache

# determine the kind of the machine which is running this script
os=`uname -s`
version=`uname -r`
machine=`uname -m`

case $os in
  Linux*) 
	  case $version in
            1.*) version=1.X;;
	    2.*) version=2.X;;
	  esac
	  case $machine in
	    i*86) machine=ix86;;
	  esac;;
  SunOS*)
	  case $version in
	    4.1.*) version=4.1.X;;
	  esac
	  case $machine in
	    sun4*) machine=sun4;;
	  esac;;
  IRIX*)
	  case $version in
	    5.*) version=5.X;;
	    6.*) version=6.X;;
	  esac
	  case $machine in
	   IP*) machine=IPxx;;
	  esac;;
  HP-UX*)
 	  case $version in
 	    A.09.*) version=9.X;;
 	    A.10.*) version=10.X;;
 	  esac
 	  case $machine in
 	    9000/7*) machine=9000s700;;
 	  esac;;
esac

#
# General variables:
#	DFLGS= the -Dxxx options
#	EDFLGS= the -Dxxx options (which could be erased if dyn. loading is enabled)
#	EOBJ= Some extra '.o' to build
#	ETKOBJ= Some extra '.o' to build (when used with Tk)
#	MACHINE= something which identifies the machine (hard/OS/machine)
DFLGS="-DSTk_CODE"
EOBJ=""
ETKOBJ=""
EDFLGS=""
MACHINE=$os-$version-$machine





####
#### Checks for various programs:
####
# Extract the first word of "ranlib", so it can be a program name with args.
set dummy ranlib; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  if test -n "$RANLIB"; then
  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
else
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
  for ac_dir in $PATH; do
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/$ac_word; then
      ac_cv_prog_RANLIB="ranlib"
      break
    fi
  done
  IFS="$ac_save_ifs"
  test -z "$ac_cv_prog_RANLIB" && ac_cv_prog_RANLIB=":"
fi
fi
RANLIB="$ac_cv_prog_RANLIB"
if test -n "$RANLIB"; then
  echo "$ac_t""$RANLIB" 1>&6
else
  echo "$ac_t""no" 1>&6
fi

STRIP=strip; 

####
#### Find the C compiler an compile flags
####
CC=${CC-gcc}
echo "Using '$CC' compiler"


STKCFLAGS=${CFLAGS-"-O2"}

echo "Using '$STKCFLAGS' compilation options"

STKLDFLAGS=""


####
#### Try to figure the system we have
####
case $MACHINE in
  SunOS-4*)  OS=SUNOS4;;
  SunOS-5*)  OS=SUNOS5;;
  OSF1*)     OS=OSF1;;
  ULTRIX*)   OS=ULTRIX;;
  HP*)	     OS=HPUX; DFLGS="$DFLGS -Dhpux";;
  Linux*)    OS=LINUX;;
  NetBSD-1*) OS=NETBSD1;;
  FreeBSD*)  OS=FREEBSD;;
  IRIX-5*)   OS=IRIX5;;
  *)         OS=unknown_system;;
esac

# Set the OS flag soon since it can be augmented with Linux
DFLGS="$DFLGS -D$OS"
echo "Assumming OS is $OS"

####
#### X11 stuff
####
echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
# On Suns, sometimes $CPP names a directory.
if test -n "$CPP" && test -d "$CPP"; then
  CPP=
fi
if test -z "$CPP"; then
if eval "test \"`echo '$''{'ac_cv_prog_CPP'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
    # This must be in double quotes, not single quotes, because CPP may get
  # substituted into the Makefile and "${CC-cc}" will confuse make.
  CPP="${CC-cc} -E"
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp.
  cat > conftest.$ac_ext <<EOF
#line 692 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
EOF
eval "$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
ac_err=`grep -v '^ *+' conftest.out`
if test -z "$ac_err"; then
  :
else
  echo "$ac_err" >&5
  rm -rf conftest*
  CPP="${CC-cc} -E -traditional-cpp"
  cat > conftest.$ac_ext <<EOF
#line 706 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
EOF
eval "$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
ac_err=`grep -v '^ *+' conftest.out`
if test -z "$ac_err"; then
  :
else
  echo "$ac_err" >&5
  rm -rf conftest*
  CPP=/lib/cpp
fi
rm -f conftest*
fi
rm -f conftest*
  ac_cv_prog_CPP="$CPP"
fi
  CPP="$ac_cv_prog_CPP"
else
  ac_cv_prog_CPP="$CPP"
fi
echo "$ac_t""$CPP" 1>&6

# If we find X, set shell vars x_includes and x_libraries to the
# paths, otherwise set no_x=yes.
# Uses ac_ vars as temps to allow command line to override cache and checks.
# --without-x overrides everything else, but does not touch the cache.
echo $ac_n "checking for X""... $ac_c" 1>&6

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

if test "x$with_x" = xno; then
  no_x=yes
else
  if test "x$x_includes" != xNONE && test "x$x_libraries" != xNONE; then
    no_x=
  else
if eval "test \"`echo '$''{'ac_cv_path_x'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  # One or both of the vars are not set, and there is no cached value.
no_x=yes
rm -fr conftestdir
if mkdir conftestdir; then
  cd conftestdir
  # Make sure to not put "make" in the Imakefile rules, since we grep it out.
  cat > Imakefile <<'EOF'
acfindx:
	@echo 'ac_im_incroot="${INCROOT}"; ac_im_usrlibdir="${USRLIBDIR}"; ac_im_libdir="${LIBDIR}"'
EOF
  if (xmkmf) >/dev/null 2>/dev/null && test -f Makefile; then
    no_x=
    # GNU make sometimes prints "make[1]: Entering...", which would confuse us.
    eval `${MAKE-make} acfindx 2>/dev/null | grep -v make`
    # Open Windows xmkmf reportedly sets LIBDIR instead of USRLIBDIR.
    for ac_extension in a so sl; do
      if test ! -f $ac_im_usrlibdir/libX11.$ac_extension &&
        test -f $ac_im_libdir/libX11.$ac_extension; then
        ac_im_usrlibdir=$ac_im_libdir; break
      fi
    done
    # Screen out bogus values from the imake configuration.
    case "$ac_im_incroot" in
	/usr/include) ;;
	*) test -f "$ac_im_incroot/X11/Xos.h" && ac_x_includes="$ac_im_incroot" ;;
    esac
    case "$ac_im_usrlibdir" in
	/usr/lib | /lib) ;;
	*) test -d "$ac_im_usrlibdir" && ac_x_libraries="$ac_im_usrlibdir" ;;
    esac
  fi
  cd ..
  rm -fr conftestdir
fi

if test "$no_x" = yes; then
test -z "$x_direct_test_library" && x_direct_test_library=Xt
test -z "$x_direct_test_function" && x_direct_test_function=XtMalloc
test -z "$x_direct_test_include" && x_direct_test_include=X11/Intrinsic.h
cat > conftest.$ac_ext <<EOF
#line 792 "configure"
#include "confdefs.h"
#include <$x_direct_test_include>
EOF
eval "$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
ac_err=`grep -v '^ *+' conftest.out`
if test -z "$ac_err"; then
  rm -rf conftest*
  no_x= ac_x_includes=
else
  echo "$ac_err" >&5
  rm -rf conftest*
    for ac_dir in               \
    /usr/X11R6/include        \
    /usr/X11R5/include        \
    /usr/X11R4/include        \
                              \
    /usr/include/X11R6        \
    /usr/include/X11R5        \
    /usr/include/X11R4        \
                              \
    /usr/local/X11R6/include  \
    /usr/local/X11R5/include  \
    /usr/local/X11R4/include  \
                              \
    /usr/local/include/X11R6  \
    /usr/local/include/X11R5  \
    /usr/local/include/X11R4  \
                              \
    /usr/X11/include          \
    /usr/include/X11          \
    /usr/local/X11/include    \
    /usr/local/include/X11    \
                              \
    /usr/X386/include         \
    /usr/x386/include         \
    /usr/XFree86/include/X11  \
                              \
    /usr/include              \
    /usr/local/include        \
    /usr/unsupported/include  \
    /usr/athena/include       \
    /usr/local/x11r5/include  \
    /usr/lpp/Xamples/include  \
                              \
    /usr/openwin/include      \
    /usr/openwin/share/include \
    ; \
  do
    if test -r "$ac_dir/$x_direct_test_include"; then
      no_x= ac_x_includes=$ac_dir
      break
    fi
  done
fi
rm -f conftest*

# Check for the libraries.
# See if we find them without any special options.
# Don't add to $LIBS permanently.
ac_save_LIBS="$LIBS"
LIBS="-l$x_direct_test_library $LIBS"
cat > conftest.$ac_ext <<EOF
#line 855 "configure"
#include "confdefs.h"

int main() { return 0; }
int t() {
${x_direct_test_function}()
; return 0; }
EOF
if eval $ac_link; then
  rm -rf conftest*
  LIBS="$ac_save_LIBS" no_x= ac_x_libraries=
else
  rm -rf conftest*
  LIBS="$ac_save_LIBS"
# First see if replacing the include by lib works.
for ac_dir in `echo "$ac_x_includes" | sed s/include/lib/` \
    /usr/X11R6/lib        \
    /usr/X11R5/lib        \
    /usr/X11R4/lib        \
                          \
    /usr/lib/X11R6        \
    /usr/lib/X11R5        \
    /usr/lib/X11R4        \
                          \
    /usr/local/X11R6/lib  \
    /usr/local/X11R5/lib  \
    /usr/local/X11R4/lib  \
                          \
    /usr/local/lib/X11R6  \
    /usr/local/lib/X11R5  \
    /usr/local/lib/X11R4  \
                          \
    /usr/X11/lib          \
    /usr/lib/X11          \
    /usr/local/X11/lib    \
    /usr/local/lib/X11    \
                          \
    /usr/X386/lib         \
    /usr/x386/lib         \
    /usr/XFree86/lib/X11  \
                          \
    /usr/lib              \
    /usr/local/lib        \
    /usr/unsupported/lib  \
    /usr/athena/lib       \
    /usr/local/x11r5/lib  \
    /usr/lpp/Xamples/lib  \
                          \
    /usr/openwin/lib      \
    /usr/openwin/share/lib \
    ; \
do
  for ac_extension in a so sl; do
    if test -r $ac_dir/lib${x_direct_test_library}.$ac_extension; then
      no_x= ac_x_libraries=$ac_dir
      break 2
    fi
  done
done
fi
rm -f conftest*

fi
if test "$no_x" = yes; then
  ac_cv_path_x="no_x=yes"
else
  ac_cv_path_x="no_x= ac_x_includes=$ac_x_includes ac_x_libraries=$ac_x_libraries"
fi
fi
  fi
  eval "$ac_cv_path_x"
fi # $with_x != no

if test "$no_x" = yes; then
  echo "$ac_t""no" 1>&6
else
  test "x$x_includes" = xNONE && x_includes=$ac_x_includes
  test "x$x_libraries" = xNONE && x_libraries=$ac_x_libraries
  ac_cv_path_x="no_x= ac_x_includes=$x_includes ac_x_libraries=$x_libraries"
  echo "$ac_t""libraries $x_libraries, headers $x_includes" 1>&6
fi

echo $ac_n "checking for POSIXized ISC""... $ac_c" 1>&6
if test -d /etc/conf/kconfig.d &&
  grep _POSIX_VERSION /usr/include/sys/unistd.h >/dev/null 2>&1
then
  echo "$ac_t""yes" 1>&6
  ISC=yes # If later tests want to check for ISC.
  cat >> confdefs.h <<\EOF
#define _POSIX_SOURCE 1
EOF

  if test "$GCC" = yes; then
    CC="$CC -posix"
  else
    CC="$CC -Xp"
  fi
else
  echo "$ac_t""no" 1>&6
  ISC=
fi

if test "$no_x" = yes; then 
  # Not all programs may use this symbol, but it does not hurt to define it.
  X_CFLAGS="$X_CFLAGS -DX_DISPLAY_MISSING"
else
  if test -n "$x_includes"; then
    X_CFLAGS="$X_CFLAGS -I$x_includes"
  fi

  # It would be nice to have a more robust check for the -R ld option than
  # just checking for Solaris.
  # It would also be nice to do this for all -L options, not just this one.
  if test -n "$x_libraries"; then
    X_LIBS="$X_LIBS -L$x_libraries"
    if test "`(uname) 2>/dev/null`" = SunOS &&
      uname -r | grep '^5' >/dev/null; then
      X_LIBS="$X_LIBS -R $x_libraries"
    fi
  fi

  # Check for libraries that X11R6 Xt/Xaw programs need.

  ac_save_LDFLAGS="$LDFLAGS"
  LDFLAGS="$LDFLAGS -L$x_libraries"
  # SM needs ICE to (dynamically) link under SunOS 4.x (so we have to
  # check for ICE first), but we must link in the order -lSM -lICE or
  # we get undefined symbols.  So assume we have SM if we have ICE.
  # These have to be linked with before -lX11, unlike the other
  # libraries we check for below, so use a different variable.
  #  --interran@uluru.Stanford.EDU, kb@cs.umb.edu.
  echo $ac_n "checking for -lICE""... $ac_c" 1>&6
ac_lib_var=`echo ICE | tr '.-/+' '___p'`
if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  ac_save_LIBS="$LIBS"
LIBS="-lICE  $LIBS"
cat > conftest.$ac_ext <<EOF
#line 994 "configure"
#include "confdefs.h"

int main() { return 0; }
int t() {
IceConnectionNumber()
; return 0; }
EOF
if eval $ac_link; then
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=yes"
else
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=no"
fi
rm -f conftest*
LIBS="$ac_save_LIBS"

fi
if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
  echo "$ac_t""yes" 1>&6
  X_PRE_LIBS="$X_PRE_LIBS -lSM -lICE"
else
  echo "$ac_t""no" 1>&6
fi

  LDFLAGS="$ac_save_LDFLAGS"

  # Check for system-dependent libraries X programs must link with.

  if test "$ISC" = yes; then
    X_EXTRA_LIBS="$X_EXTRA_LIBS -lnsl_s -linet"
  else
    # Martyn.Johnson@cl.cam.ac.uk says this is needed for Ultrix, if the X
    # libraries were built with DECnet support.  And karl@cs.umb.edu says
    # the Alpha needs dnet_stub (dnet does not exist).
    echo $ac_n "checking for -ldnet""... $ac_c" 1>&6
ac_lib_var=`echo dnet | tr '.-/+' '___p'`
if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  ac_save_LIBS="$LIBS"
LIBS="-ldnet  $LIBS"
cat > conftest.$ac_ext <<EOF
#line 1038 "configure"
#include "confdefs.h"

int main() { return 0; }
int t() {
dnet_ntoa()
; return 0; }
EOF
if eval $ac_link; then
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=yes"
else
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=no"
fi
rm -f conftest*
LIBS="$ac_save_LIBS"

fi
if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
  echo "$ac_t""yes" 1>&6
  X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet"
else
  echo "$ac_t""no" 1>&6
fi

    if test $ac_cv_lib_dnet = no; then
      echo $ac_n "checking for -ldnet_stub""... $ac_c" 1>&6
ac_lib_var=`echo dnet_stub | tr '.-/+' '___p'`
if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  ac_save_LIBS="$LIBS"
LIBS="-ldnet_stub  $LIBS"
cat > conftest.$ac_ext <<EOF
#line 1073 "configure"
#include "confdefs.h"

int main() { return 0; }
int t() {
dnet_ntoa()
; return 0; }
EOF
if eval $ac_link; then
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=yes"
else
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=no"
fi
rm -f conftest*
LIBS="$ac_save_LIBS"

fi
if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
  echo "$ac_t""yes" 1>&6
  X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet_stub"
else
  echo "$ac_t""no" 1>&6
fi

    fi

    # msh@cis.ufl.edu says -lnsl (and -lsocket) are needed for his 386/AT,
    # to get the SysV transport functions.
    # Not sure which flavor of 386 UNIX this is, but it seems harmless to
    # check for it.
    echo $ac_n "checking for -lnsl""... $ac_c" 1>&6
ac_lib_var=`echo nsl | tr '.-/+' '___p'`
if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  ac_save_LIBS="$LIBS"
LIBS="-lnsl  $LIBS"
cat > conftest.$ac_ext <<EOF
#line 1113 "configure"
#include "confdefs.h"

int main() { return 0; }
int t() {
t_accept()
; return 0; }
EOF
if eval $ac_link; then
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=yes"
else
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=no"
fi
rm -f conftest*
LIBS="$ac_save_LIBS"

fi
if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
  echo "$ac_t""yes" 1>&6
  X_EXTRA_LIBS="$X_EXTRA_LIBS -lnsl"
else
  echo "$ac_t""no" 1>&6
fi


    # lieder@skyler.mavd.honeywell.com says without -lsocket,
    # socket/setsockopt and other routines are undefined under SCO ODT 2.0.
    # But -lsocket is broken on IRIX, according to simon@lia.di.epfl.ch.
    if test "`(uname) 2>/dev/null`" != IRIX; then
      echo $ac_n "checking for -lsocket""... $ac_c" 1>&6
ac_lib_var=`echo socket | tr '.-/+' '___p'`
if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  ac_save_LIBS="$LIBS"
LIBS="-lsocket  $LIBS"
cat > conftest.$ac_ext <<EOF
#line 1152 "configure"
#include "confdefs.h"

int main() { return 0; }
int t() {
socket()
; return 0; }
EOF
if eval $ac_link; then
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=yes"
else
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=no"
fi
rm -f conftest*
LIBS="$ac_save_LIBS"

fi
if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
  echo "$ac_t""yes" 1>&6
  X_EXTRA_LIBS="$X_EXTRA_LIBS -lsocket"
else
  echo "$ac_t""no" 1>&6
fi

    fi
  fi
fi


XINCLUDES=""; 
XLIBSW="";    

if test "$x_includes" != "" 
then 
  XINCLUDES="-I$x_includes"
fi

if test "$x_libraries" != ""
then
   XLIBSW="-L$x_libraries"
fi

XLIBSW="$XLIBSW $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"


#--------------------------------------------------------------------
#	Include sys/select.h if it exists and if it supplies things
#	that appear to be useful and aren't already in sys/types.h.
#	This appears to be true only on the RS/6000 under AIX.  Some
#	systems like OSF/1 have a sys/select.h that's of no use, and
#	other systems like SCO UNIX have a sys/select.h that's
#	pernicious.  If "fd_set" isn't defined anywhere then set a
#	special flag.
#--------------------------------------------------------------------

echo $ac_n "checking fd_set and sys/select""... $ac_c" 1>&6
cat > conftest.$ac_ext <<EOF
#line 1211 "configure"
#include "confdefs.h"
#include <sys/types.h>
int main() { return 0; }
int t() {
fd_set readMask, writeMask;
; return 0; }
EOF
if eval $ac_compile; then
  rm -rf conftest*
  tk_ok=yes
else
  rm -rf conftest*
  tk_ok=no
fi
rm -f conftest*

if test $tk_ok = no; then
    cat > conftest.$ac_ext <<EOF
#line 1230 "configure"
#include "confdefs.h"
#include <sys/select.h>
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "fd_mask" >/dev/null 2>&1; then
  rm -rf conftest*
  tk_ok=yes
fi
rm -f conftest*

    if test $tk_ok = yes; then
	cat >> confdefs.h <<\EOF
#define HAVE_SYS_SELECT_H 1
EOF

    fi
fi
echo "$ac_t""$tk_ok" 1>&6
if test $tk_ok = no; then
    cat >> confdefs.h <<\EOF
#define NO_FD_SET 1
EOF

fi


####
#### Find the MP library to use
####
# Check whether --with-fgmp or --without-fgmp was given.
if test "${with_fgmp+set}" = set; then
  withval="$with_fgmp"
  MP=libfgmp
else
  MP=libgmp
fi

echo "Multiple precision library: $MP"


####
#### Hash tables
####
# Check whether --enable-hash or --disable-hash was given.
if test "${enable_hash+set}" = set; then
  enableval="$enable_hash"
  hashtable="$enable_hash"
else
  hashtable="yes"
fi


if test "$hashtable" = "yes" ; 
then
  EOBJ="$EOBJ hash.o"; EDFLGS="$EDFLGS -DUSE_HASH"
fi

echo "Hash tables support: $hashtable"

####
#### Posix support
####
# Check whether --enable-posix or --disable-posix was given.
if test "${enable_posix+set}" = set; then
  enableval="$enable_posix"
  posix="$enable_posix"
else
  posix="yes"
fi


if test "$posix" = "yes" ; 
then
  EOBJ="$EOBJ posix.o"; EDFLGS="$EDFLGS -DUSE_POSIX"
fi

echo "Posix support: $posix"

####
#### Use STklos support
####
# Check whether --enable-stklos or --disable-stklos was given.
if test "${enable_stklos+set}" = set; then
  enableval="$enable_stklos"
  stklos="$enable_stklos"
else
  stklos="yes"
fi


if test "$stklos" = "yes" ; 
then
  if test "$hashtable" != "yes"
  then
    echo "*** Hash table support is required for STklos."
    echo "*** Forcing hash table support building."
    EOBJ="$EOBJ hash.o"; EDFLGS="$EDFLGS -DUSE_HASH"
  fi
  DFLGS="$DFLGS -DUSE_STKLOS"
fi
echo "STklos support: $stklos"

####
#### Use Socket support from David Tolpin (dvd@pizza.msk.su)
####
# Check whether --enable-socket or --disable-socket was given.
if test "${enable_socket+set}" = set; then
  enableval="$enable_socket"
  socket="$enable_socket"
else
  socket="yes"
fi


if test "$socket" = "yes" 
then
   EOBJ="$EOBJ socket.o"; EDFLGS="$EDFLGS -DUSE_SOCKET"
fi
echo "Socket support: $socket"


####
#### Use Regexp support 
####
# Check whether --enable-regexp or --disable-regexp was given.
if test "${enable_regexp+set}" = set; then
  enableval="$enable_regexp"
  regexpr="$enable_regexpr"
else
  regexpr="yes"
fi


if test "$regexpr" = "yes" 
then 
   EOBJ="$EOBJ sregexp.o"; EDFLGS="$EDFLGS -DUSE_REGEXP"
fi
echo "Regexp support: $regexpr"


####
#### Use Process support 
####
# Check whether --enable-process or --disable-process was given.
if test "${enable_process+set}" = set; then
  enableval="$enable_process"
  process="$enable_process"
else
  process="yes"
fi


if test "$process" = "yes" 
then
   EOBJ="$EOBJ process.o"; EDFLGS="$EDFLGS -DUSE_PROCESS"
fi
echo "Process support: $process"

####
#### Html support
####
# Check whether --enable-html or --disable-html was given.
if test "${enable_html+set}" = set; then
  enableval="$enable_html"
  html="$enable_html"
else
  html="yes"
fi


if test "$html" = "yes" ; 
then
  EOBJ="$EOBJ html.o"; EDFLGS="$EDFLGS -DUSE_HTML"
fi

echo "Html support: $html"

####
#### Pixmap support
####
# Check whether --enable-pixmap or --disable-pixmap was given.
if test "${enable_pixmap+set}" = set; then
  enableval="$enable_pixmap"
  pixmapimages="$enable_pixmap"
else
  pixmapimages="yes"
fi


if test "$pixmapimages" = "yes" ; 
then
  ETKOBJ="$ETKOBJ pixmap.o"; EDFLGS="$EDFLGS -DUSE_PIXMAP"
fi
echo "Pixmap Images support: $pixmapimages"

####
#### JPEG support
####
# Check whether --enable-jpeg or --disable-jpeg was given.
if test "${enable_jpeg+set}" = set; then
  enableval="$enable_jpeg"
  jpegimages="$enable_jpeg"
else
  jpegimages="yes"
fi


if test "$jpegimages" = "yes" ; 
then
  ETKOBJ="$ETKOBJ jpeg.o"; EDFLGS="$EDFLGS -DUSE_JPEG"
fi
echo "JPEG Images support: $jpegimages"


##############################################################################
####
#### Dynamic loading
#### 
##############################################################################
DYNLOAD=""       ; 
EXTRA_OBJ=""     ; 
LIB_DLD=""	 ; 
HAVE_DYNLOAD=yes

case $OS in
  unkn*)   HAVE_DYNLOAD="no";;
  ULTRIX)  HAVE_DYNLOAD="no";;
  LINUX)   HAVE_DYNLOAD="no";
	   # Try to see if this system could be a ELF one
	   elf_hint="no"
	   for i in /lib/libc.so*
	   do
	     case $i in
	       /lib/libc.so.6*| libc-2.*)  elf_hint="yes"; break;;
	       *) set `file  $i`
		  if test "$2" = "ELF"
		  then 
		    elf_hint="yes"
		    break
		  fi ;;
	     esac
	   done 2> /dev/null
 
           # Check whether --enable-elf or --disable-elf was given.
if test "${enable_elf+set}" = set; then
  enableval="$enable_elf"
  dynload_elf="$enable_elf"
else
  dynload_elf=$elf_hint
fi

	   
           # Check whether --enable-dld or --disable-dld was given.
if test "${enable_dld+set}" = set; then
  enableval="$enable_dld"
  dynload_dld="$enable_dld"
else
  dynload_dld="no"
fi

	   if test "$dynload_elf" = "yes"
	   then 
	     if test "$dynload_dld" = "yes"
	     then
	       echo "**** You have set both DLD and ELF support. Rerun configure"
	       exit 1
	     fi
	     OS=LINUX_ELF
	     echo "Linux: Using ELF for dynamic loading"
	     HAVE_DYNLOAD="yes"
	   fi
	   if test "$dynload_dld" = "yes"
	   then 
	     OS=LINUX_DLD
	     echo "Linux: Using DLD for dynamic loading"
	     HAVE_DYNLOAD="yes"
	   fi
	   # Set a compilation flag indicating the format used
	   DFLGS="$DFLGS -D$OS" ;;
   *)      # Check whether --enable-dynload or --disable-dynload was given.
if test "${enable_dynload+set}" = set; then
  enableval="$enable_dynload"
  dynload="$enable_dynload"
else
  dynload="yes"
fi


	   if test "$dynload" = "no"
	   then
	     echo "======== Don't use dynamic loading ======="; 
	     HAVE_DYNLOAD="no";
	   fi;;
esac
	

SH_CCFLAGS=""; 
SH_LDFLAGS=""; 
SH_LOADER=":"; 
SH_SUFFIX="";  
LIB_MALLOC=""; 

echo "Determining options for dynamic loading for $OS"
case $OS in 
  SUNOS4) 
     SH_CCFLAGS="-pic"
     SH_LDFLAGS="-assert pure-text -o"
     SH_LOADER="ld"
     SH_SUFFIX='so';;
   SUNOS5)
     SH_CCFLAGS="-K pic"
     SH_LDFLAGS='-G -z text -h'
     SH_LOADER="ld"
     SH_SUFFIX='so';;
   OSF1)
     SH_CCFLAGS="-fpic"
     SH_LDFLAGS="-shared -o"
     SH_LOADER="ld"
     SH_SUFFIX='so' ;;
   NETBSD1) 
     SH_CCFLAGS="-fpic"
     SH_LDFLAGS="-Bshareable -o"
     SH_LOADER="ld"
     SH_SUFFIX='so';;
   HPUX)
     SH_CCFLAGS="+Z"
     SH_LDFLAGS="-b -o"
     SH_LOADER="ld"
     SH_SUFFIX='sl'
     STKLDFLAGS="$STKLDFLAGS -Wl,-E"
     LIB_DLD=-ldld;;
   FREEBSD)
     SH_CCFLAGS="-pic"
     SH_LDFLAGS="-Bshareable -o"
     SH_LOADER="ld"
     LIB_MALLOC="-lgnumalloc"
     SH_SUFFIX='so';;
   IRIX5)
     if test "$CC" = "gcc"
     then 
       SH_CCFLAGS="-fpic"
     else
       SH_CCFLAGS="-KPIC"
     fi
     SH_LDFLAGS="-shared -o"
     SH_LOADER="$CC"
     SH_SUFFIX='so' ;;
   LINUX)
     echo "     Linux: no dynamic loading method chosen";;
   LINUX_DLD)
     SH_CCFLAGS=''
     SH_LDFLAGS='-r -o'
     SH_LOADER='ld'
     SH_SUFFIX='so'
     # Define STRIP to true to avoid executables striping when using DLD
     STRIP=true
     # Add the -ldld flag 
     LIB_DLD=-ldld;;
   LINUX_ELF)
     SH_CCFLAGS=''
     SH_LDFLAGS='-shared -o'
     SH_LOADER='ld'
     SH_SUFFIX='so' 
     # Under ELF, use the -rdynamic option at ld phase
     STKLDFLAGS=-rdynamic;;
   *) echo " (I don't know how to make shared libraries for $OS)" ;;
esac

#
# Transform -pic in -fpic if using gcc
#
if test ! -z "SH_CCFLAGS" ; then 
  if test "$CC" = "gcc" -a "$SH_CCFLAGS" != "" ; then
    SH_CCFLAGS="-fpic"
  fi
fi

if  test "$HAVE_DYNLOAD" = "yes"
then
  for _i_ in $EOBJ $ETKOBJ
  do 
    EXTRA_OBJ="$EXTRA_OBJ `basename $_i_ .o`.$SH_SUFFIX"
  done
  DYNLOAD=-DUSE_DYNLOAD
  EOBJ=""
  ETKOBJ=""
  EDFLGS=""
fi

# Set final DFLGS
DFLGS="$DFLGS $EDFLGS"

####
#### Produce the Makefile
####
echo
trap '' 1 2 15
cat > confcache <<\EOF
# 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.  It is not useful on other systems.
# If it contains results you don't want to keep, you may remove or edit it.
#
# By default, configure uses ./config.cache as the cache file,
# creating it if it does not exist already.  You can give configure
# the --cache-file=FILE option to use a different cache file; that is
# what configure does when it calls configure scripts in
# subdirectories, so they share the cache.
# Giving --cache-file=/dev/null disables caching, for debugging configure.
# config.status only pays attention to the cache file if you give it the
# --recheck option to rerun configure.
#
EOF
# 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 |
  sed -n "s/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=\${\1='\2'}/p" \
  >> confcache
if cmp -s $cache_file confcache; then
  :
else
  if test -w $cache_file; then
    echo "updating cache $cache_file"
    cat confcache > $cache_file
  else
    echo "not updating unwritable cache $cache_file"
  fi
fi
rm -f confcache

trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15

test "x$prefix" = xNONE && prefix=$ac_default_prefix
# Let make expand exec_prefix.
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'

# Any assignment to VPATH causes Sun make to only execute
# the first set of double-colon rules, so remove it if not needed.
# If there is a colon in the path, we need to keep it.
if test "x$srcdir" = x.; then
  ac_vpsub='/^[ 	]*VPATH[ 	]*=[^:]*$/d'
fi

trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15

# Transform confdefs.h into DEFS.
# Protect against shell expansion while executing Makefile rules.
# Protect against Makefile macro expansion.
cat > conftest.defs <<\EOF
s%#define \([A-Za-z_][A-Za-z0-9_]*\) \(.*\)%-D\1=\2%g
s%[ 	`~#$^&*(){}\\|;'"<>?]%\\&%g
s%\[%\\&%g
s%\]%\\&%g
s%\$%$$%g
EOF
DEFS=`sed -f conftest.defs confdefs.h | tr '\012' ' '`
rm -f conftest.defs


# Without the "./", some shells look in PATH for config.status.
: ${CONFIG_STATUS=./config.status}

echo creating $CONFIG_STATUS
rm -f $CONFIG_STATUS
cat > $CONFIG_STATUS <<EOF
#! /bin/sh
# Generated automatically by configure.
# Run this file to recreate the current configuration.
# This directory was configured as follows,
# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
#
# $0 $ac_configure_args
#
# Compiler output produced by configure, useful for debugging
# configure, is in ./config.log if it exists.

ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]"
for ac_option
do
  case "\$ac_option" in
  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
    exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
  -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
    echo "$CONFIG_STATUS generated by autoconf version 2.7"
    exit 0 ;;
  -help | --help | --hel | --he | --h)
    echo "\$ac_cs_usage"; exit 0 ;;
  *) echo "\$ac_cs_usage"; exit 1 ;;
  esac
done

ac_given_srcdir=$srcdir

trap 'rm -fr `echo "Makefile" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
EOF
cat >> $CONFIG_STATUS <<EOF

# Protect against being on the right side of a sed subst in config.status.
sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
 s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
$ac_vpsub
$extrasub
s%@CFLAGS@%$CFLAGS%g
s%@CPPFLAGS@%$CPPFLAGS%g
s%@CXXFLAGS@%$CXXFLAGS%g
s%@DEFS@%$DEFS%g
s%@LDFLAGS@%$LDFLAGS%g
s%@LIBS@%$LIBS%g
s%@exec_prefix@%$exec_prefix%g
s%@prefix@%$prefix%g
s%@program_transform_name@%$program_transform_name%g
s%@bindir@%$bindir%g
s%@sbindir@%$sbindir%g
s%@libexecdir@%$libexecdir%g
s%@datadir@%$datadir%g
s%@sysconfdir@%$sysconfdir%g
s%@sharedstatedir@%$sharedstatedir%g
s%@localstatedir@%$localstatedir%g
s%@libdir@%$libdir%g
s%@includedir@%$includedir%g
s%@oldincludedir@%$oldincludedir%g
s%@infodir@%$infodir%g
s%@mandir@%$mandir%g
s%@DFLGS@%$DFLGS%g
s%@EOBJ@%$EOBJ%g
s%@ETKOBJ@%$ETKOBJ%g
s%@MACHINE@%$MACHINE%g
s%@RANLIB@%$RANLIB%g
s%@STRIP@%$STRIP%g
s%@CC@%$CC%g
s%@STKCFLAGS@%$STKCFLAGS%g
s%@STKLDFLAGS@%$STKLDFLAGS%g
s%@CPP@%$CPP%g
s%@X_CFLAGS@%$X_CFLAGS%g
s%@X_PRE_LIBS@%$X_PRE_LIBS%g
s%@X_LIBS@%$X_LIBS%g
s%@X_EXTRA_LIBS@%$X_EXTRA_LIBS%g
s%@XINCLUDES@%$XINCLUDES%g
s%@XLIBSW@%$XLIBSW%g
s%@MP@%$MP%g
s%@DYNLOAD@%$DYNLOAD%g
s%@EXTRA_OBJ@%$EXTRA_OBJ%g
s%@LIB_DLD@%$LIB_DLD%g
s%@SH_CCFLAGS@%$SH_CCFLAGS%g
s%@SH_LDFLAGS@%$SH_LDFLAGS%g
s%@SH_LOADER@%$SH_LOADER%g
s%@SH_SUFFIX@%$SH_SUFFIX%g
s%@LIB_MALLOC@%$LIB_MALLOC%g

CEOF
EOF
cat >> $CONFIG_STATUS <<EOF

CONFIG_FILES=\${CONFIG_FILES-"Makefile"}
EOF
cat >> $CONFIG_STATUS <<\EOF
for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
  # Support "outfile[:infile]", defaulting infile="outfile.in".
  case "$ac_file" in
  *:*) ac_file_in=`echo "$ac_file"|sed 's%.*:%%'`
       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
  *) ac_file_in="${ac_file}.in" ;;
  esac

  # Adjust relative srcdir, etc. for subdirectories.

  # Remove last slash and all that follows it.  Not all systems have dirname.
  ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
  if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
    # The file is in a subdirectory.
    test ! -d "$ac_dir" && mkdir "$ac_dir"
    ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
    # A "../" for each directory in $ac_dir_suffix.
    ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
  else
    ac_dir_suffix= ac_dots=
  fi

  case "$ac_given_srcdir" in
  .)  srcdir=.
      if test -z "$ac_dots"; then top_srcdir=.
      else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;;
  /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
  *) # Relative path.
    srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
    top_srcdir="$ac_dots$ac_given_srcdir" ;;
  esac

  echo creating "$ac_file"
  rm -f "$ac_file"
  configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
  case "$ac_file" in
  *Makefile*) ac_comsub="1i\\
# $configure_input" ;;
  *) ac_comsub= ;;
  esac
  sed -e "$ac_comsub
s%@configure_input@%$configure_input%g
s%@srcdir@%$srcdir%g
s%@top_srcdir@%$top_srcdir%g
" -f conftest.subs $ac_given_srcdir/$ac_file_in > $ac_file
fi; done
rm -f conftest.subs



exit 0
EOF
chmod +x $CONFIG_STATUS
rm -fr confdefs* $ac_clean_files
test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1


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

####
#### Configuring Sub-directories
####

echo "**** Configuring Src directory";
(cd Src; CC=$CC MACH=$MACH /bin/sh ./configure)

echo "**** Configuring Extensions directory";
(cd Extensions; CC=$CC MACH=$MACH /bin/sh ./configure)

echo "**** Configuring Stack directory";
(cd Stack; CC=$CC /bin/sh ./configure)

echo "**** Configuring Tcl directory";
(cd Tcl; CC=$CC /bin/sh ./configure)

echo "**** Configuring Tk directory";
if test "$x_includes" != "" -a "$x_libraries" != ""
then
  (cd Tk/unix; CC=$CC /bin/sh ./configure --x-includes=$x_includes \
				          --x-libraries=$x_libraries)
else
  (cd Tk/unix; CC=$CC /bin/sh ./configure)
fi

###
### Some things to terminate
###


# FreeBsd seems to use an old syntax for inclusion in Makefile. Patch
# Makefiles acordingly 

case $OS in
   FREEBSD) for i in */Makefile
	    do
		sed <$i > X$$X 's%include ../config.make%.include "../config.make"%'
		mv X$$X $i
	    done;;
   *)       ;;
esac

###
### SUMMARY
###

echo " "
echo " "
echo "SUMMARY"
echo "*******"
echo "   Your system is " $OS
echo "   C compiler is:" $CC
echo "   Compilation options:" $STKCFLAGS
echo "   Dynamic loading enabled:" $HAVE_DYNLOAD
echo "   X11 libraries directory:" $x_libraries
echo "   X11 headers directory:"   $x_includes
echo " "
echo "   You have chosen the following options"
echo "		Multiple precision library:     " $MP
echo "		Hash tables support:            " $hashtable
echo "		Posix support:                  " $posix
echo "		STklos support:                 " $stklos
echo "		Socket support:                 " $socket
echo "		Regexp support:                 " $regexpr
echo "		Process support:                " $process
echo "		Html support:                   " $html
echo "		Pixmap Images support:          " $pixmapimages
echo "		Jpeg Images support:            " $jpegimages

echo " "
echo "If this is correct, you can just type 'make' now at your shell prompt."
echo "Otherwise, rerun configure with proper options (see the README file for"
echo "a description of STk configure options.)"
echo " "