* config/tc-i960.c (md_convert_frag): Add ATTRIBUTE_UNUSED to args.
[binutils-gdb.git] / configure
index bfa3fcca8993c88323a98c660c90b26c9c00207a..6b4d9b495623f5f4443c72b45c0809bd4a13c561 100755 (executable)
--- a/configure
+++ b/configure
@@ -1,43 +1,37 @@
 #!/bin/sh
-# Please do not edit this file.  It is generated automatically from
-# configure.in and a configure template.
-configdirs=
-
-#!/bin/sh
-
-# Configuration script template
-#   Copyright (C) 1988, 1990, 1991 Free Software Foundation, Inc.
-
-#This file is part of GNU.
 
-#GNU CC is free software; you can redistribute it and/or modify
-#it under the terms of the GNU General Public License as published by
-#the Free Software Foundation; either version 1, or (at your option)
-#any later version.
+### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
 
-#GNU CC is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#GNU General Public License for more details.
+# Configuration script
+# Copyright (C) 1988, 90, 91, 92, 93, 94, 95, 96, 97, 98, 1999, 2000, 2001,
+# 2002 Free Software Foundation, Inc.
 
-#You should have received a copy of the GNU General Public License
-#along with GNU CC; see the file COPYING.  If not, write to
-#the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-# $Id$
+# This file was originally written by K. Richard Pixley.
 
 #
 # Shell script to create proper links to machine-dependent files in
-# preparation for compiling gcc.
-#
-# Usage: configure [+srcdir=DIR] [+host=HOST] [+gas] [+nfp] TARGET
+# preparation for compilation.
 #
 # If configure succeeds, it leaves its status in config.status.
 # If configure fails after disturbing the status quo, 
-#      config.status is removed.
+#       config.status is removed.
 #
 
-progname=$0
+export PATH || (echo "OOPS, this isn't sh.  Desperation time.  I will feed myself to sh."; sh $0 $argv; kill $$)
 
 remove=rm
 hard_link=ln
@@ -49,389 +43,1346 @@ symbolic_link='ln -s'
 #symbolic_link="echo ln -s"
 
 # clear some things potentially inherited from environment.
-ansi=
-hostsubdir=
-norecurse=
-removing=
+
+Makefile=Makefile
+Makefile_in=Makefile.in
+arguments=
+build_alias=
+cache_file=config.cache
+cache_file_option=
+configdirs=
+extraconfigdirs=
+diroptions=
+enable_threads=no
+enable_shared=no
+enable_libstdcxx_v3=yes
+exec_prefix=
+exec_prefixoption=
+fatal=
+floating_point=default
+gas=default
+gcc_version=
+gcc_version_trigger=
+host_alias=NOHOST
+host_makefile_frag=
+moveifchange=
+norecursion=
+other_options=
+package_makefile_frag=
+package_makefile_rules_frag=
+prefix=/usr/local
+progname=
+program_prefix=
+program_prefixoption=
+program_suffix=
+program_suffixoption=
+program_transform_name=
+program_transform_nameoption=
+redirect=
+site=
+site_makefile_frag=
+site_option=
 srcdir=
-target=
-targetsubdir=
-template=
+srctrigger=
+target_alias=NOTARGET
+target_makefile_frag=
+undefs=NOUNDEFS
+version="$Revision$"
+x11=default
+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='${prefix}/man'
+
+### we might need to use some other shell than /bin/sh for running subshells
+
+### If we are on Windows, search for the shell.  This will permit people
+### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
+### without also having to set CONFIG_SHELL.  This code will work when
+### using bash, which sets OSTYPE.
+case "${OSTYPE}" in
+*win32*)
+  if [ x${CONFIG_SHELL} = x ]; then
+    if [ ! -f /bin/sh ]; then
+      if [ x${SHELL} != x ] && [ -f ${SHELL} ]; then
+       CONFIG_SHELL=${SHELL}
+       export CONFIG_SHELL
+      else
+       for prog in sh sh.exe bash bash.exe; do
+         IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
+         for dir in $PATH; do
+           test -z "$dir" && dir=.
+           if test -f $dir/$prog; then
+             CONFIG_SHELL=$dir/$prog
+             export CONFIG_SHELL
+             break
+           fi
+         done
+         IFS="$save_ifs"
+         test -n "${CONFIG_SHELL}" && break
+       done
+      fi
+    fi
+  fi
+  ;;
+esac
 
-for arg in $*;
+config_shell=${CONFIG_SHELL-/bin/sh}
+
+NO_EDIT="This file was generated automatically by configure.  Do not edit."
+
+## this is a little touchy and won't always work, but...
+##
+## if the argv[0] starts with a slash then it is an absolute name that can (and
+## must) be used as is.
+##
+## otherwise, if argv[0] has no slash in it, we can assume that it is on the
+## path.  Since PATH might include "." we also add `pwd` to the end of PATH.
+##
+
+progname=$0
+# if PWD already has a value, it is probably wrong.
+if [ -n "$PWD" ]; then PWD=`${PWDCMD-pwd}`; fi
+
+case "${progname}" in
+/* | [A-Za-z]:[\\/]* ) ;;
+*/*) ;;
+*)
+        PATH=$PATH:${PWD=`${PWDCMD-pwd}`} ; export PATH
+        ;;
+esac
+
+# Export original configure arguments for use by sub-configures.
+TOPLEVEL_CONFIGURE_ARGUMENTS="$progname $@"
+export TOPLEVEL_CONFIGURE_ARGUMENTS
+
+# Loop over all args
+
+while :
 do
-       case $arg in
-       -ansi | +ansi)
-               ansi=true
-               ;;
-       -forcesubdirs | +f*)
-               forcesubdirs=${arg}
-               ;;
-       -host=* | +host=* | +hos=* | +ho=* | +h=*)
-               host=`echo $arg | sed 's/[+-]h[a-z]*=//'`
-               ;; 
-       -languages=* | +languages=* | +language=* | +languag=* \
-               | +langua=* | +langu=* | +lang=* | +lan=* | +la=* \
-               | +l=*)
-               languages="$languages `echo $arg | sed 's/[+-]l[a-z]*=//'`"
-               ;;
-       -gas | +gas | +ga | +g)
+
+# Break out if there are no more args
+       case $# in
+       0)
+               break
+               ;;
+       esac
+
+# Get the first arg, and shuffle
+       option=$1
+       shift
+
+# Make all options have two hyphens
+       orig_option=$option     # Save original for error messages
+       case $option in
+       --*) ;;
+       -*) option=-$option ;;
+       esac
+               
+# Split out the argument for options that take them
+       case $option in
+       --*=*)
+               optarg=`echo $option | sed -e 's/^[^=]*=//'`
+               arguments="$arguments $option"
+               ;;
+# These options have mandatory values.  Since we didn't find an = sign,
+# the value must be in the next argument
+       --bu* | --cache* | --ex* | --ho* | --pre* | --program-p* | --program-s* | --program-t* | --si* | --sr* | --ta* | --tm* | --x-* | --bi* | --sb* | --li* | --da* | --sy* | --sh* | --lo* | --in* | --ol* | --ma*)
+               optarg=$1
+               shift
+               arguments="$arguments $option=$optarg"
+               ;;
+       --v)
+               arguments="$arguments -v"
+               ;;
+       --*)
+               arguments="$arguments $option"
+               ;;
+       esac
+
+# Now, process the options
+       case $option in
+
+       --bi*)
+               bindir=$optarg
+               diroptions="$diroptions --bindir=$optarg"
+               ;;
+       --build* | --bu*)
+               case "$build_alias" in
+               "") build_alias=$optarg ;;
+               *) echo '***' Can only configure for one build machine at a time.  1>&2
+                  fatal=yes
+                  ;;
+               esac
+               ;;
+       --cache*)
+               cache_file=$optarg
+               ;;
+       --da*)
+               datadir=$optarg
+               diroptions="$diroptions --datadir=$optarg"
+               ;;
+       --disable-*)
+               enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
+               eval $enableopt=no
+               disableoptions="$disableoptions $option"
+               ;;
+       --enable-*)
+               case "$option" in
+               *=*)    ;;
+               *)      optarg=yes ;;
+               esac
+
+               enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
+               eval "$enableopt=\$optarg"
+               enableoptions="$enableoptions '$option'"
+               ;;
+       --exec-prefix* | --ex*)
+               exec_prefix=$optarg
+               exec_prefixoption="--exec-prefix=$optarg"
+               ;;
+       --gas | --g*)
                gas=yes
                ;;
-       -nfp | +nfp | +nf | +n)
-               nfp=yes
+       --help | --he*)
+               fatal=yes
+               ;;
+       --host* | --ho*)
+               case $host_alias in
+               NOHOST) host_alias=$optarg ;;
+               *) echo '***' Can only configure for one host at a time.  1>&2
+                  fatal=yes
+                  ;;
+               esac
+               ;;
+       --inc*)
+               includedir=$optarg
+               diroptions="$diroptions --includedir=$optarg"
+               ;;
+       --inf*)
+               infodir=$optarg
+               diroptions="$diroptions --infodir=$optarg"
+               ;;
+       --libd*)
+               libdir=$optarg
+               diroptions="$diroptions --libdir=$optarg"
+               ;;
+       --libe*)
+               libexecdir=$optarg
+               diroptions="$diroptions --libexecdir=$optarg"
+               ;;
+       --lo*)
+               localstatedir=$optarg
+               diroptions="$diroptions --localstatedir=$optarg"
+               ;;
+       --ma*)
+               mandir=$optarg
+               diroptions="$diroptions --mandir=$optarg"
+               ;;
+       --nfp | --nf*)
+               floating_point=no
+               floating_pointoption="--nfp"
+               ;;
+       --norecursion | --no*)
+               norecursion=yes
+               ;;
+       --ol*)
+               oldincludedir=$optarg
+               diroptions="$diroptions --oldincludedir=$optarg"
+               ;;
+       --prefix* | --pre*)
+               prefix=$optarg
+               prefixoption="--prefix=$optarg"
+               ;;
+       --program-prefix* | --program-p*)
+               program_prefix=$optarg
+               program_prefixoption="--program-prefix=$optarg"
+               ;;
+       --program-suffix* | --program-s*)
+               program_suffix=$optarg
+               program_suffixoption="--program-suffix=$optarg"
+               ;;
+       --program-transform-name* | --program-t*)
+               # Double any backslashes or dollar signs in the argument
+               program_transform_name="${program_transform_name} -e `echo ${optarg} | sed -e 's/\\\\/\\\\\\\\/g' -e 's/\\\$/$$/g'`"
+               program_transform_nameoption="${program_transform_nameoption} --program-transform-name='$optarg'"
+               ;;
+       --sb*)
+               sbindir=$optarg
+               diroptions="$diroptions --sbindir=$optarg"
+               ;;
+       --sh*)
+               sharedstatedir=$optarg
+               diroptions="$diroptions --sharedstatedir=$optarg"
+               ;;
+       --silent | --sil* | --quiet | --q*)
+               redirect=">/dev/null"
+               verbose=--silent
+               ;;
+       --site* | --sit*)
+               site=$optarg
+               site_option="--site=$optarg"
                ;;
-       -norecurse | +norecurse)
-               norecurse=true
+       --srcdir*/ | --sr*/)
+                # Remove trailing slashes.  Otherwise, when the file name gets
+                # bolted into an object file as debug info, it has two slashes
+                # in it.  Ordinarily this is ok, but emacs takes double slash
+                # to mean "forget the first part".
+               srcdir=`echo $optarg | sed -e 's:/$::'`
                ;;
-       -rm | +rm)
-               removing=$arg
+       --srcdir* | --sr*)
+               srcdir=$optarg
                ;;
-       -srcdir=* | +srcdir=* | +srcdi=* | +srcd=* | +src=* | +sr=* | +s=*)
-               srcdir=`echo $arg | sed 's/[+-]s[a-z]*=//'`
+       --sy*)
+               sysconfdir=$optarg
+               diroptions="$diroptions --sysconfdir=$optarg"
                ;;
-       -template=* | +template=*)
-               template=`echo $arg | sed 's/[+-]template=//'`
+       --target* | --ta*)
+               case $target_alias in
+               NOTARGET) target_alias=$optarg ;;
+               *) echo '***' Can only configure for one target at a time.  1>&2
+                  fatal=yes
+                  ;;
+               esac
+               ;;
+       --tmpdir* | --tm*)
+               TMPDIR=$optarg
+               tmpdiroption="--tmpdir=$optarg"
+               ;;
+       --verbose | --v | --verb*)
+               redirect=
+               verbose=--verbose
+               ;;
+       --version | --V | --vers*)
+               echo "This is Cygnus Configure version" `echo ${version} | sed 's/[ $:]//g'`
+               exit 0
+               ;;
+       --with-*)
+               case "$option" in
+               *=*)    ;;
+               *)      optarg=yes ;;
+               esac
+
+               withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
+               eval $withopt="\$optarg"
+               withoptions="$withoptions $option"
+               ;;
+       --without-*)
+               withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
+               eval $withopt=no
+               withoutoptions="$withoutoptions $option"
+               ;;
+       --x)    with_x=yes
+               withoptions="$withoptions --with-x"
+               ;;
+       --x-i* | --x-l*) other_options="$other_options $orig_option"
+               ;;
+       --*)
+               echo "configure: Unrecognized option: \"$orig_option\"; use --help for usage." >&2
+               exit 1
                ;;
        *)
-# Allow configure HOST TARGET
-               if [ x$host = x ] ; then host=$target ; fi
-               target=$arg
+               case $undefs in
+               NOUNDEFS) undefs=$option ;;
+               *) echo '***' Can only configure for one host and one target at a time.  1>&2
+                  fatal=yes
+                  ;;
+               esac
                ;;
        esac
 done
 
-# process host and target only if not rebuilding configure itself or removing.
-if [ -z "$template" -a -z "$removing" ]
-then
-       # Complain if an arg is missing
-       if [ -z "$target" ]
-       then
-               echo "Usage: $progname [+srcdir=DIR] [+host=HOST] [+gas] [+nfp] TARGET"
-               echo -n "Where HOST and TARGET are something like "
-               echo "\`vax', \`sun3', \`encore', etc."
-               if [ -r config.status ]
-               then
-                       cat config.status
-               fi
-               exit 1
-       fi
-fi
-
-# Default other arg
-if [ -z "$host" ]
-then
-       host=$target
-fi
-
-#### configure.in files come in here.
-# This file is a shell script fragment that supplies the information
-# necessary to tailor a template configure script into the configure
-# script appropriate for this directory.  For more information, check
-# any existing configure script.
-
-configdirs="bfd binutils ld gas gcc"
-srctrigger=README.configure
-srcname="gnu development package"
-### end of configure.in
-
-# are we rebuilding config itself?
-if [ -n "$template" ]
-then
-       if [ ! -r $template ]
-       then
-               echo "Can't find template ${template}."
-               exit 1
-       fi
-
-       mv configure configure.old
-       echo "#!/bin/sh" > configure
-       echo "# Please do not edit this file.  It is generated automatically from" >> configure
-       echo "# configure.in and a configure template." >> configure
-       echo "configdirs=" >> configure
-       echo >> configure
+# process host and target
 
-       if [ -r configure.in ]
-       then
-               sed -e "/^####/  r configure.in" $template >> configure
-       else
-               cat $template >> configure
-       fi
-
-       chmod a+x configure
-       rm configure.old
-       echo Rebuilt configure in `pwd`
-
-       if [ x$norecurse = x ]
-       then
-               while [ -n "$configdirs" ]
-               do
-                       # set configdir to car of configdirs, configdirs to cdr of configdirs
-                       set $configdirs; configdir=$1; shift; configdirs=$*
+# Do some error checking and defaulting for the host and target type.
+# The inputs are:
+#    configure --host=HOST --target=TARGET UNDEFS
+#
+# The rules are:
+# 1. You aren't allowed to specify --host, --target, and undefs at the
+#    same time.
+# 2. Host defaults to undefs.
+# 3. If undefs is not specified, then host defaults to the current host,
+#    as determined by config.guess.
+# 4. Target defaults to undefs.
+# 5. If undefs is not specified, then target defaults to host.
+
+case "${fatal}" in
+"")
+       # Make sure that host, target & undefs aren't all specified at the
+       # same time.
+       case $host_alias---$target_alias---$undefs in
+       NOHOST---*---* | *---NOTARGET---* | *---*---NOUNDEFS)
+               ;;
+       *) echo '***' Can only configure for one host and one target at a time.  1>&2
+          fatal=yes
+          break 2
+               ;;
+       esac
 
-                       if [ "`echo ${configdir}.*`" != "${configdir}.*" ]
+       # Now, do defaulting for host.
+       case $host_alias in
+       NOHOST)
+               case $undefs in
+               NOUNDEFS)
+                       # Neither --host option nor undefs were present.
+                       # Call config.guess.
+                       guesssys=`echo ${progname} | sed 's/configure$/config.guess/'`
+                       if host_alias=`${config_shell} ${guesssys}`
                        then
-                               targetspecificdirs=${configdir}.*
+                               # If the string we are going to use for
+                               # the target is a prefix of the string
+                               # we just guessed for the host, then
+                               # assume we are running native, and force
+                               # the same string for both target and host.
+                               case $target_alias in
+                               NOTARGET) ;;
+                               *)
+                                       if expr $host_alias : $target_alias >/dev/null
+                                       then
+                                               host_alias=$target_alias
+                                       fi
+                                       ;;
+                               esac
+                               echo "Configuring for a ${host_alias} host."
+                               arguments="--host=$host_alias $arguments"
                        else
-                               targetspecificdirs=
+                               echo 'Config.guess failed to determine the host type.  You need to specify one.' 1>&2
+                               fatal=yes
                        fi
+                       ;;
+               *)
+                       host_alias=$undefs
+                       arguments="--host=$host_alias $arguments"
+                       undefs=NOUNDEFS
+                       ;;
+               esac
+       esac
 
-                       for i in ${configdir} ${targetspecificdirs}
-                       do
-                               if [ -r $i/configure ]
-                               then
-                                       (cd $i ;
-                                               configure +template=${template})
-                               else
-                                       echo No configure script in `pwd`/$i
-                               fi
-                       done
-               done
+       # Do defaulting for target.  If --target option isn't present, default
+       # to undefs.  If undefs isn't present, default to host.
+       case $target_alias in
+       NOTARGET)
+               case $undefs in
+               NOUNDEFS)
+                       target_alias=$host_alias
+                       ;;
+               *)
+                       target_alias=$undefs
+                       arguments="--target=$target_alias $arguments"
+                       ;;
+               esac
+       esac
+       ;;
+*) ;;
+esac
+
+if [ -n "${fatal}" -o "${host_alias}" = "help" ] ; then
+       exec 1>&2
+       echo Usage: configure [OPTIONS] [HOST]
+       echo
+       echo Options: [defaults in brackets]
+       echo ' --prefix=MYDIR            install into MYDIR [/usr/local]'
+       echo ' --exec-prefix=MYDIR       install host-dependent files into MYDIR [/usr/local]'
+       echo ' --help                    print this message [normal config]'
+       echo ' --build=BUILD             configure for building on BUILD [BUILD=HOST]'
+       echo ' --host=HOST               configure for HOST [determined via config.guess]'
+       echo ' --norecursion             configure this directory only [recurse]'
+       echo ' --program-prefix=FOO      prepend FOO to installed program names [""]'
+       echo ' --program-suffix=FOO      append FOO to installed program names [""]'
+       echo ' --program-transform-name=P transform installed names by sed pattern P [""]'
+       echo ' --site=SITE               configure with site-specific makefile for SITE'
+       echo ' --srcdir=DIR              find the sources in DIR [. or ..]'
+       echo ' --target=TARGET   configure for TARGET [TARGET=HOST]'
+       echo ' --tmpdir=TMPDIR   create temporary files in TMPDIR [/tmp]'
+       echo ' --nfp                     configure for software floating point [hard float]'
+       echo ' --with-FOO, --with-FOO=BAR package FOO is available (parameter BAR)'
+       echo ' --without-FOO             package FOO is NOT available'
+       echo ' --enable-FOO, --enable-FOO=BAR include feature FOO (parameter BAR)'
+       echo ' --disable-FOO             do not include feature FOO'
+       echo
+       echo 'Where HOST and TARGET are something like "sparc-sunos", "mips-sgi-irix5", etc.'
+       echo
+       if [ -r config.status ] ; then
+               cat config.status
        fi
 
-       exit 0
+       exit 1
 fi
 
-# Temporarily, we support only direct subdir builds.
-hostsubdir=Host-${host}
-targetsubdir=Target-${target}
+configsub=`echo ${progname} | sed 's/configure$/config.sub/'`
+moveifchange=`echo ${progname} | sed 's/configure$/move-if-change/'`
+## the sed command below emulates the dirname command
+topsrcdir=`cd \`echo ${progname} | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'\`; ${PWDCMD-pwd}`
 
-if [ -n "${removing}" ]
-then
-       if [ -d "${hostsubdir}/${targetsubdir}" ]
-       then
-               rm -rf ${hostsubdir}/${targetsubdir}
 
-               if [ -z "`(ls ${hostsubdir}) 2>&1 | grep Target-`" ]
-               then
-                       rm -rf ${hostsubdir}
-               fi
-       else
-               rm -f .gdbinit Makefile config.status $links
-       fi
+# this is a hack.  sun4 must always be a valid host alias or this will fail.
+if ${config_shell} ${configsub} sun4 >/dev/null 2>&1 ; then
+        true
 else
-       if [ -n "$forcesubdirs" ]
-       then
-               # check for existing status before allowing forced subdirs.
-               if [ -f Makefile ]
-               then
-                       echo "Makefile already exists in source directory.  `pwd` not configured."
-                       exit 1
-               fi
-
-               if [ ! -d $hostsubdir ] ; then mkdir $hostsubdir ; fi
-               cd $hostsubdir
-       
-               if [ ! -d $targetsubdir ] ; then mkdir $targetsubdir ; fi
-               cd $targetsubdir
-       
-               srcdir=../..
-       else
-               # if not subdir builds, then make sure none exist.
-               if [ -n "`(ls .) 2>&1 | grep Host-`" ]
-               then
-                       echo "Configured subdirs exist.  `pwd` not configured."
-                       exit 1
-               fi
-       fi
+        echo '***' cannot find config.sub.  1>&2
+        exit 1
+fi
 
-       # Find the source files, if location was not specified.
-       if [ x$srcdir = x ]
-       then
-               srcdirdefaulted=1
+touch config.junk
+if ${config_shell} ${moveifchange} config.junk config.trash ; then
+        true
+else
+        echo '***' cannot find move-if-change.  1>&2
+        exit 1
+fi
+rm -f config.junk config.trash
+
+case "${srcdir}" in
+"")
+        if [ -r configure.in ] ; then
+                srcdir=.
+        else
+                if [ -r ${progname}.in ] ; then
+                        srcdir=`echo ${progname} | sed 's:/configure$::'`
+                else
+                        echo '***' "Can't find configure.in.  Try using --srcdir=some_dir"  1>&2
+                        exit 1
+                fi
+        fi
+        ;;
+*)
+       # Set srcdir to "." if that's what it is.
+       # This is important for multilib support.
+       if [ ! -d ${srcdir} ] ; then
+               echo "Invalid source directory ${srcdir}" >&2
+               exit 1
+       fi
+       pwd=`${PWDCMD-pwd}`
+       srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
+       if [ "${pwd}" = "${srcpwd}" ] ; then
                srcdir=.
-               if [ ! -r ${srctrigger} ]
-               then
-                       srcdir=..
-               fi
        fi
-       
-       if [ ! -r ${srcdir}/${srctrigger} ]
-       then
-               if [ -z "$srcdirdefaulted" ]
-               then
-                 echo "$progname: Can't find ${srcname} sources in \`${srcdir}'." 1>&2
-               else
-                 echo "$progname: Can't find ${srcname} sources in \`.' or \`..'." 1>&2
-               fi
-               exit 1
+esac
+
+### warn about some conflicting configurations.
+
+case "${srcdir}" in
+".") ;;
+*)
+        if [ -f ${srcdir}/config.status ] ; then
+                echo '***' Cannot configure here in \"${PWD=`${PWDCMD-pwd}`}\" when \"${srcdir}\" is currently configured. 1>&2
+                exit 1
+        fi
+esac
+
+# default exec_prefix
+case "${exec_prefixoption}" in
+"") exec_prefix="\$(prefix)" ;;
+*) ;;
+esac
+
+### break up ${srcdir}/configure.in.
+case "`grep '^# per\-host:' ${srcdir}/configure.in`" in
+"")
+        echo '***' ${srcdir}/configure.in has no \"per-host:\" line. 1>&2
+       # Check for a directory that's been converted to use autoconf since
+       # it was last configured.
+       if grep AC_OUTPUT ${srcdir}/configure.in >/dev/null ; then
+         echo '***' Hmm, looks like this directory has been autoconfiscated. 1>&2
+         if [ -r ${srcdir}/configure ] ; then
+           echo '***' Running the local configure script. 1>&2
+           case "${cache_file}" in
+           "") cache_file_option= ;;
+           *)  cache_file_option="--cache-file=${cache_file}" ;;
+           esac
+           srcdiroption="--srcdir=${srcdir}"
+           case "${build_alias}" in
+           "") buildopt= ;;
+           *)  buildopt="--build=${build_alias}" ;;
+           esac
+           eval exec ${config_shell} ${srcdir}/configure ${verbose} \
+               ${buildopt} --host=${host_alias} --target=${target_alias} \
+               ${prefixoption} ${tmpdiroption} ${exec_prefixoption} \
+               ${srcdiroption} ${diroptions} \
+               ${program_prefixoption} ${program_suffixoption} \
+               ${program_transform_nameoption} ${site_option} \
+               ${withoptions} ${withoutoptions} \
+               ${enableoptions} ${disableoptions} ${floating_pointoption} \
+               ${cache_file_option} ${other_options} ${redirect}
+         else
+           echo '***' There is no configure script present though. 1>&2
+         fi
        fi
+        exit 1
+        ;;
+*) ;;
+esac
+
+case "`grep '^# per\-target:' ${srcdir}/configure.in`" in
+"")
+        echo '***' ${srcdir}/configure.in has no \"per-target:\" line. 1>&2
+        exit 1
+        ;;
+*) ;;
+esac
+
+case "${TMPDIR}" in
+"") TMPDIR=/tmp ; export TMPDIR ;;
+*) ;;
+esac
+
+# keep this filename short for &%*%$*# 14 char file names and 8+3 file names
+tmpdir=${TMPDIR}/cNf$$
+mkdir ${tmpdir} || exit 1
+tmpfile=${tmpdir}/cNf$$
+# Note that under many versions of sh a trap handler for 0 will *override* any
+# exit status you explicitly specify!  At this point, the only non-error exit
+# is at the end of the script; these actions are duplicated there, minus
+# the "exit 1".  Don't use "exit 0" anywhere after this without resetting the
+# trap handler, or you'll lose.
+trap "rm -rf Makefile.tem ${tmpdir}; exit 1" 0 1 2 15
+
+# split ${srcdir}/configure.in into common, per-host, per-target,
+# and post-target parts.  Post-target is optional.
+sed -e '/^# per\-host:/,$d' ${srcdir}/configure.in > ${tmpfile}.com
+sed -e '1,/^# per\-host:/d' -e '/^# per\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.hst
+if grep '^# post-target:' ${srcdir}/configure.in >/dev/null ; then
+  sed -e '1,/^# per\-target:/d' -e '/^# post\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.tgt
+  sed -e '1,/^# post\-target:/d' ${srcdir}/configure.in > ${tmpfile}.pos
+else
+  sed -e '1,/^# per\-target:/d' ${srcdir}/configure.in > ${tmpfile}.tgt
+  echo >${tmpfile}.pos
+fi
 
-       # Set up the list of links to be made.
-       # $links is the list of link names, and $files is the list of names to link to.
-
-       # Make the links.
-       while [ -n "$files" ]
-       do
-               # set file to car of files, files to cdr of files
-               set $files; file=$1; shift; files=$*
-               set $links; link=$1; shift; links=$*
-
-               if [ ! -r ${srcdir}/${file} ]
-               then
-                       echo "$progname: cannot create a link \"${link}\"," 1>&2
-                       echo "since the file \"$file\" does not exist." 1>&2
-                       exit 1
-               fi
-
-               $remove -f $link
-               rm -f config.status
-               # Make a symlink if possible, otherwise try a hard link
-               $symbolic_link ${srcdir}/$file $link 2>/dev/null || $hard_link ${srcdir}/$file $link
-
-               if [ ! -r $link ]
-               then
-                       echo "$progname: unable to link \"$link\" to \"${srcdir}/$file\"." 1>&2
-                       exit 1
-               fi
-               echo "Linked \"$link\" to \"${srcdir}/${file}\"."
-       done
+### do common part of configure.in
+
+. ${tmpfile}.com
+
+# some sanity checks on configure.in
+case "${srctrigger}" in
+"")
+        echo '***' srctrigger not set in ${PWD=`${PWDCMD-pwd}`}/configure.in.  1>&2
+        exit 1
+        ;;
+*) ;;
+esac
+
+case "${build_alias}" in
+"")
+       if result=`${config_shell} ${configsub} ${host_alias}` ; then
+           build_cpu=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+           build_vendor=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+           build_os=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+           build=${build_cpu}-${build_vendor}-${build_os}
+           build_alias=${host_alias}
+       fi
+       ;;
+*)
+       if result=`${config_shell} ${configsub} ${build_alias}` ; then
+           buildopt="--build=${build_alias}"
+           build_cpu=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+           build_vendor=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+           build_os=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+           build=${build_cpu}-${build_vendor}-${build_os}
+       else
+           echo "Unrecognized build system name ${build_alias}." 1>&2
+           exit 1
+       fi
+       ;;
+esac
 
-       # Create a .gdbinit file which runs the one in srcdir
-       # and tells GDB to look there for source files.
+if result=`${config_shell} ${configsub} ${host_alias}` ; then
+    true
+else
+    echo "Unrecognized host system name ${host_alias}." 1>&2
+    exit 1
+fi
+host_cpu=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+host_vendor=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+host_os=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+host=${host_cpu}-${host_vendor}-${host_os}
 
-       case $srcdir in
-       .)
-               ;;
-       *)
-               echo "dir ." > .gdbinit
-               echo "dir ${srcdir}" >> .gdbinit
-               echo "source ${srcdir}/.gdbinit" >> .gdbinit
-               ;;
-       esac
+. ${tmpfile}.hst
 
-       # Install a makefile, and make it set VPATH
-       # if necessary so that the sources are found.
-       # Also change its value of srcdir.
+if result=`${config_shell} ${configsub} ${target_alias}` ; then
+    true
+else
+    echo "Unrecognized target system name ${target_alias}." 1>&2
+    exit 1
+fi
+target_cpu=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+target_vendor=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+target_os=`echo $result | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+target=${target_cpu}-${target_vendor}-${target_os}
+
+. ${tmpfile}.tgt
+
+# Find the source files, if location was not specified.
+case "${srcdir}" in
+"")
+        srcdirdefaulted=1
+        srcdir=.
+        if [ ! -r ${srctrigger} ] ; then
+                srcdir=..
+        fi
+        ;;
+*) ;;
+esac
+
+if [ ! -r ${srcdir}/${srctrigger} ] ; then
+        case "${srcdirdefaulted}" in
+        "") echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`${PWDCMD-pwd}`}/${srcdir}" 1>&2 ;;
+        *)  echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`${PWDCMD-pwd}`}/. or ${PWD=`${PWDCMD-pwd}`}/.." 1>&2 ;;
+        esac
+
+        echo '***' \(At least ${srctrigger} is missing.\) 1>&2
+        exit 1
+fi
 
-# FIXME-someday: This business of always writing to .tem and mv back
-# is so that I don't screw things up while developing.  Once this
-# template is stable, these should be optimized. xoxorich.
+# Some systems (e.g., one of the i386-aix systems the gas testers are
+# using) don't handle "\$" correctly, so don't use it here.
+tooldir='$(exec_prefix)'/${target_alias}
+
+if [ "${host_alias}" != "${target_alias}" ] ; then
+    if [ "${program_prefixoption}" = "" ] ; then
+        if [ "${program_suffixoption}" = "" ] ; then 
+            if [ "${program_transform_nameoption}" = "" ] ; then
+                program_prefix=${target_alias}- ;
+            fi
+        fi
+    fi
+fi
 
-       # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
-       if [ x$host != x$target ]
-       then
-               echo "CROSS=-DCROSS_COMPILE" > Makefile
-               echo "ALL=start.encap" >> Makefile
-       else
-               echo "ALL=all.internal" > Makefile
-       fi
+# Merge program_prefix and program_suffix onto program_transform_name.
+# (program_suffix used to use $, but it's hard to preserve $ through both
+# make and sh.)
+if [ "${program_suffix}" != "" ] ; then
+    program_transform_name="-e s,\\\\(.*\\\\),\\\\1${program_suffix}, ${program_transform_name}"
+fi
 
-       # set target, host, VPATH
-       echo "host = $host" >> Makefile
-       echo "target = $target" >> Makefile
+if [ "${program_prefix}" != "" ] ; then
+    program_transform_name="-e s,^,${program_prefix}, ${program_transform_name}"
+fi
 
-       if [ -n "${forcesubdirs}" ]
-       then
-               echo "subdir = /${hostsubdir}/${targetsubdir}" >> Makefile
-       else
-               echo "subdir =" >> Makefile
-       fi
+# If CC and CXX are not set in the environment, and the Makefile
+# exists, try to extract them from it.  This is to handle running
+# ./config.status by hand.
+if [ -z "${CC}" ] && [ -r Makefile ]; then
+  sed -n -e ':loop
+/\\$/ N
+s/\\\n//g
+t loop
+/^CC[  ]*=/ s/CC[      ]*=[    ]*\(.*\)/\1/p' < Makefile > Makefile.cc
+  CC=`tail -1 Makefile.cc`
+  rm -f Makefile.cc
+fi
 
-#      echo "workdir = `pwd`" >> Makefile
-       echo "VPATH = ${srcdir}" >> Makefile
+if [ -z "${CFLAGS}" ] && [ -r Makefile ]; then
+  sed -n -e ':loop
+/\\$/ N
+s/\\\n//g
+t loop
+/^CFLAGS[      ]*=/ s/CFLAGS[  ]*=[    ]*\(.*\)/\1/p' < Makefile > Makefile.cc
+  CFLAGS=`tail -1 Makefile.cc`
+  rm -f Makefile.cc
+fi
 
-       # add Makefile.in
-       cat ${srcdir}/Makefile.in >> Makefile
+if [ -z "${CXX}" ] && [ -r Makefile ]; then
+  sed -n -e ':loop
+/\\$/ N
+s/\\\n//g
+t loop
+/^CXX[         ]*=/ s/CXX[     ]*=[    ]*\(.*\)/\1/p' < Makefile > Makefile.cc
+  CXX=`tail -1 Makefile.cc`
+  rm -f Makefile.cc
+fi
 
-       # and shake thoroughly.
-       host_var_file=hmake-${host}
-       target_var_file=tmake-${target}
+if [ -z "${CXXFLAGS}" ] && [ -r Makefile ]; then
+  sed -n -e ':loop
+/\\$/ N
+s/\\\n//g
+t loop
+/^CXXFLAGS[    ]*=/ s/CXXFLAGS[        ]*=[    ]*\(.*\)/\1/p' < Makefile > Makefile.cc
+  CXXFLAGS=`tail -1 Makefile.cc`
+  rm -f Makefile.cc
+fi
 
-       # Conditionalize the makefile for this machine.
-       if [ -f ${srcdir}/config/${host_var_file} ]
-       then
-               sed -e "/^####/  r ${srcdir}/config/${host_var_file}" Makefile > Makefile.tem
-               mv Makefile.tem Makefile
-       fi
+# Generate a default definition for YACC.  This is used if the makefile can't
+# locate bison or byacc in objdir.
 
-       if [ -f ${srcdir}/config/${target_var_file} ]
-       then
-               sed -e "/^####/  r ${srcdir}/config/${target_var_file}" Makefile > Makefile.tem
-               mv Makefile.tem Makefile
-       fi
+for prog in 'bison -y' byacc yacc
+do
+  set dummy $prog; tmp=$2
+  IFS="${IFS=  }"; save_ifs="$IFS"; IFS="${IFS}:"
+  for dir in $PATH; do
+    test -z "$dir" && dir=.
+    if test -f $dir/$tmp; then
+      DEFAULT_YACC="$prog"
+      break
+    fi
+  done
+  IFS="$save_ifs"
+
+  test -n "$DEFAULT_YACC" && break
+done
 
-       sed "s@^srcdir = \.@srcdir = ${srcdir}@" Makefile > Makefile.tem
-       mv Makefile.tem Makefile
+# Generate a default definition for M4.  This is used if the makefile can't
+# locate m4 in objdir.
 
-       # Remove all formfeeds, since some Makes get confused by them.
-       sed "s/\f//" Makefile >> Makefile.tem
-       mv Makefile.tem Makefile
+for prog in gm4 gnum4 m4
+do
+  set dummy $prog; tmp=$2
+  IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
+  for dir in $PATH; do
+    test -z "$dir" && dir=.
+    if test -f $dir/$tmp; then
+      DEFAULT_M4="$prog"
+      break
+    fi
+  done
+  IFS="$save_ifs"
+
+  test -n "$DEFAULT_M4" && break
+done
 
-       # reset SUBDIRS
-       sed "s:^SUBDIRS =.*$:SUBDIRS = ${configdirs}:" Makefile > Makefile.tem
-       mv Makefile.tem Makefile
+# Generate a default definition for LEX.  This is used if the makefile can't
+# locate flex in objdir.
 
-       # reset NONSUBDIRS
-       sed "s:^NONSUBDIRS =.*$:NONSUBDIRS = ${noconfigdirs}:" Makefile > Makefile.tem
-       mv Makefile.tem Makefile
+for prog in flex lex
+do
+  set dummy $prog; tmp=$2
+  IFS="${IFS=  }"; save_ifs="$IFS"; IFS="${IFS}:"
+  for dir in $PATH; do
+    test -z "$dir" && dir=.
+    if test -f $dir/$tmp; then
+      DEFAULT_LEX="$prog"
+      break
+    fi
+  done
+  IFS="$save_ifs"
+
+  test -n "$DEFAULT_LEX" && break
+done
 
-       using=
-       if [ -f ${srcdir}/config/${host_var_file} ]
-       then
-               using=" using \"${host_var_file}\""
-       fi
 
-       if [ -f ${srcdir}/config/${target_var_file} ]
-       then
-               if [ -z "${using}" ]
-               then
-                       andusing=" using \"${target_var_file}\""
-               else
-                       andusing="${using} and \"${target_var_file}\""
-               fi
+if [ "${build}" != "${host}" ]; then
+  # If we are doing a Canadian Cross, in which the host and build systems
+  # are not the same, we set reasonable default values for the tools.
+  tools="AR AR_FOR_TARGET AS AS_FOR_TARGET BISON CC_FOR_BUILD"
+  tools="${tools} CC_FOR_TARGET CXX_FOR_TARGET GCJ_FOR_TARGET"
+  tools="${tools} DLLTOOL DLLTOOL_FOR_TARGET GCC_FOR_TARGET BUILD_PREFIX"
+  tools="${tools} BUILD_PREFIX_1 LD LD_FOR_TARGET LEX MAKEINFO NM"
+  tools="${tools} NM_FOR_TARGET RANLIB RANLIB_FOR_TARGET"
+  tools="${tools} WINDRES WINDRES_FOR_TARGET YACC"
+  tools="${tools} OBJCOPY OBJDUMP"
+
+  for var in ${tools}; do
+    if eval [ -z \"\$${var}\" ] && [ -r Makefile ]; then
+      sed -n -e ':loop
+/\\$/ N
+s/\\\n//g
+t loop
+/^'"${var}"'[  ]*=/ s/'"${var}"'[      ]*=[    ]*\(.*\)/\1/p' \
+       < Makefile > Makefile.v
+      t=`tail -1 Makefile.v`
+      if [ -n "${t}" ]; then
+       eval "${var}=\${t}"
+      fi
+      rm -f Makefile.v
+    fi
+  done
+
+  AR=${AR-${host_alias}-ar}
+  AR_FOR_TARGET=${AR_FOR_TARGET-${target_alias}-ar}
+  AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
+  AS=${AS-${host_alias}-as}
+  AS_FOR_TARGET=${AS_FOR_TARGET-${target_alias}-as}
+  BISON=${BISON-bison}
+  CC=${CC-${host_alias}-gcc}
+  CFLAGS=${CFLAGS-"-g -O2"}
+  CXX=${CXX-${host_alias}-c++}
+  CXXFLAGS=${CXXFLAGS-"-g -O2"}
+  CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
+  CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
+  CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
+  GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
+  DLLTOOL=${DLLTOOL-${host_alias}-dlltool}
+  DLLTOOL_FOR_TARGET=${DLLTOOL_FOR_TARGET-${target_alias}-dlltool}
+  GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
+  BUILD_PREFIX=${build_alias}-
+  BUILD_PREFIX_1=${build_alias}-
+  LD=${LD-${host_alias}-ld}
+  LD_FOR_TARGET=${LD_FOR_TARGET-${target_alias}-ld}
+  MAKEINFO=${MAKEINFO-makeinfo}
+  NM=${NM-${host_alias}-nm}
+  NM_FOR_TARGET=${NM_FOR_TARGET-${target_alias}-nm}
+  NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
+  RANLIB=${RANLIB-${host_alias}-ranlib}
+  RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET-${target_alias}-ranlib}
+  WINDRES=${WINDRES-${host_alias}-windres}
+  WINDRES_FOR_TARGET=${WINDRES_FOR_TARGET-${target_alias}-windres}
+  OBJCOPY=${OBJCOPY-${host_alias}-objcopy}
+  OBJDUMP=${OBJDUMP-${host_alias}-objdump}
+
+  if [ -z "${YACC}" ]; then
+    IFS="${IFS=        }"; save_ifs="$IFS"; IFS="${IFS}:"
+    for dir in $PATH; do
+      test -z "$dir" && dir=.
+      if test -f $dir/bison; then
+       YACC="bison -y"
+       break
+      fi
+      if test -f $dir/byacc; then
+       YACC=byacc
+       break
+      fi
+      if test -f $dir/yacc; then
+       YACC=yacc
+       break
+      fi
+    done
+    IFS="$save_ifs"
+    if [ -z "${YACC}" ]; then
+      YACC="bison -y"
+    fi
+  fi
+
+  if [ -z "${LEX}" ]; then
+    IFS="${IFS=        }"; save_ifs="$IFS"; IFS="${IFS}:"
+    for dir in $PATH; do
+      test -z "$dir" && dir=.
+      if test -f $dir/flex; then
+       LEX=flex
+       break
+      fi
+      if test -f $dir/lex; then
+       LEX=lex
+       break
+      fi
+    done
+    IFS="$save_ifs"
+    LEX=${LEX-flex}
+  fi
+
+  # Export variables which autoconf might try to set.
+  export AS
+  export AR
+  export CC_FOR_BUILD
+  export DLLTOOL
+  export LD
+  export NM
+  export RANLIB
+  export WINDRES
+  export OBJCOPY
+  export OBJDUMP
+else
+  # Set reasonable default values for some tools even if not Canadian.
+  # Of course, these are different reasonable default values, originally
+  # specified directly in the Makefile.
+  # We don't export, so that autoconf can do its job.
+  # Note that all these settings are above the fragment inclusion point
+  # in Makefile.in, so can still be overridden by fragments.
+  # This is all going to change when we autoconfiscate...
+
+  tools="AR AR_FOR_TARGET AS AS_FOR_TARGET BISON CC_FOR_BUILD"
+  tools="${tools} DLLTOOL DLLTOOL_FOR_TARGET GCC_FOR_TARGET BUILD_PREFIX"
+  tools="${tools} BUILD_PREFIX_1 LD LD_FOR_TARGET LEX MAKEINFO NM"
+  tools="${tools} NM_FOR_TARGET RANLIB_FOR_TARGET"
+  tools="${tools} WINDRES WINDRES_FOR_TARGET YACC"
+
+  AR=ar
+  AR_FOR_TARGET='\$(USUAL_AR_FOR_TARGET)'
+  AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
+  AS=as
+  AS_FOR_TARGET='\$(USUAL_AS_FOR_TARGET)'
+  BISON='$(USUAL_BISON)'
+  CC_FOR_BUILD='\$(CC)'
+  DLLTOOL=dlltool
+  DLLTOOL_FOR_TARGET='\$(USUAL_DLLTOOL_FOR_TARGET)'
+  GCC_FOR_TARGET='\$(USUAL_GCC_FOR_TARGET)'
+  BUILD_PREFIX=
+  BUILD_PREFIX_1=loser-
+  LD=ld
+  LD_FOR_TARGET='\$(USUAL_LD_FOR_TARGET)'
+  MAKEINFO='\$(USUAL_MAKEINFO)'
+  NM=nm
+  NM_FOR_TARGET='\$(USUAL_NM_FOR_TARGET)'
+  NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
+  RANLIB_FOR_TARGET='\$(USUAL_RANLIB_FOR_TARGET)'
+  WINDRES=windres
+  WINDRES_FOR_TARGET='\$(USUAL_WINDRES_FOR_TARGET)'
+  LEX='\$(USUAL_LEX)'
+  YACC='\$(USUAL_YACC)'
+
+  # If CC is still not set, try to get gcc.
+  if [ -z "${CC}" ]; then
+    IFS="${IFS=        }"; save_ifs="$IFS"; IFS="${IFS}:"
+    for dir in $PATH; do
+      test -z "$dir" && dir=.
+      if test -f $dir/gcc; then
+       CC="gcc"
+       echo 'void f(){}' > conftest.c
+       if test -z "`${CC} -g -c conftest.c 2>&1`"; then
+         CFLAGS=${CFLAGS-"-g -O2"}
+         CXXFLAGS=${CXXFLAGS-"-g -O2"}
        else
-               andusing=${using}
+         CFLAGS=${CFLAGS-"-O2"}
+         CXXFLAGS=${CXXFLAGS-"-O2"}
        fi
-
-       echo "Created \"Makefile\""${andusing}.
-
-       if [ x$host = x$target ]
-       then
-               echo "Links are now set up for use with a $target." \
-                       > config.status
-#                      | tee ${srcdir}/config.status
+       rm -f conftest*
+       break
+      fi
+    done
+    IFS="$save_ifs"
+    CC=${CC-cc}
+  else
+    if test -z "${CFLAGS}"; then
+      # Here CC is set but CFLAGS is not.  Use a quick hack to use -O2 if CC
+      # is set to a version of gcc.
+      case "${CC}" in
+      *gcc)
+       echo 'void f(){}' > conftest.c
+       if test -z "`${CC} -g -c conftest.c 2>&1`"; then
+         CFLAGS=${CFLAGS-"-g -O2"}
+         CXXFLAGS=${CXXFLAGS-"-g -O2"}
        else
-               echo "Links are now set up for host $host and target $target." \
-                       > config.status
-#                      | tee ${srcdir}/config.status
+         CFLAGS=${CFLAGS-"-O2"}
+         CXXFLAGS=${CXXFLAGS-"-O2"}
        fi
+       rm -f conftest*
+       ;;
+      esac
+    fi
+  fi
+
+  CXX=${CXX-"c++"}
+  CFLAGS=${CFLAGS-"-g"}
+  CXXFLAGS=${CXXFLAGS-"-g -O2"}
+fi
+
+export CC
+export CXX
+export CFLAGS
+export CXXFLAGS
 
-       originaldir=`pwd`
-       cd ${srcdir}
+# FIXME Should this be done recursively ??? (Useful for e.g. gdbtest)
+# Set up the list of links to be made.
+# ${links} is the list of link names, and ${files} is the list of names to link to.
+
+# Make the links.
+configlinks="${links}"
+if [ -r ./config.status ] ; then
+  mv -f ./config.status ./config.back
 fi
+while [ -n "${files}" ] ; do
+  # set file to car of files, files to cdr of files
+  set ${files}; file=$1; shift; files=$*
+  set ${links}; link=$1; shift; links=$*
+
+  if [ ! -r ${srcdir}/${file} ] ; then
+    if [ ! -r ${file} ] ; then
+      echo '***' "${progname}: cannot create a link \"${link}\"," 1>&2
+      echo '***' "since the file \"${srcdir}/${file}\" does not exist." 1>&2
+      exit 1
+    else
+      srcfile=${file}
+    fi
+  else
+    srcfile=${srcdir}/${file}
+  fi
+
+  ${remove} -f ${link}
+  # Make a symlink if possible, otherwise try a hard link
+  if ${symbolic_link} ${srcfile} ${link} >/dev/null 2>&1 ; then
+    true
+  else
+    # We need to re-remove the file because Lynx leaves a 
+    # very strange directory there when it fails an NFS symlink.
+    ${remove} -r -f ${link}
+    ${hard_link} ${srcfile} ${link}
+  fi
+  if [ ! -r ${link} ] ; then
+    echo '***' "${progname}: unable to link \"${link}\" to \"${srcfile}\"." 1>&2
+    exit 1
+  fi
+
+  echo "Linked \"${link}\" to \"${srcfile}\"."
+done
 
-# If there are subdirectories, then recurse. 
+# Create a .gdbinit file which runs the one in srcdir
+# and tells GDB to look there for source files.
+
+if [ -r ${srcdir}/.gdbinit ] ; then
+  case ${srcdir} in
+    .) ;;
+    *) cat > ./.gdbinit <<EOF
+# ${NO_EDIT}
+dir ${srcdir}
+dir .
+source ${srcdir}/.gdbinit
+EOF
+    ;;
+  esac
+fi
 
-if [ -n "$norecurse" ] ; then exit 0 ; fi
+# Install a makefile, and make it set VPATH
+# if necessary so that the sources are found.
+# Also change its value of srcdir.
+# NOTE: Makefile generation constitutes the majority of the time in configure.  Hence, this section has
+# been somewhat optimized and is perhaps a bit twisty.
+
+# code is order so as to try to sed the smallest input files we know.
+# so do these separately because I don't trust the order of sed -e expressions.
+
+# the five makefile fragments MUST end up in the resulting Makefile in this order: 
+# package macros, target, host, site, and package rules.
+
+if [ -f ${srcdir}/${Makefile_in} ] ; then
+
+  # Conditionalize the makefile for this package from "Makefile.in" (or whatever it's called) into Makefile.tem.
+  rm -f ./${Makefile}.tem
+  case "${package_makefile_rules_frag}" in
+    "") cp ${srcdir}/${Makefile_in} ./Makefile.tem ;;
+    *)
+      if [ ! -f ${package_makefile_rules_frag} ] ; then
+        package_makefile_rules_frag=${srcdir}/${package_makefile_rules_frag}
+      fi
+      if [ -f ${package_makefile_rules_frag} ] ; then
+        sed -e "/^####/  r ${package_makefile_rules_frag}" ${srcdir}/${Makefile_in} > ${Makefile}.tem
+      else
+        echo '***' Expected package makefile rules fragment \"${package_makefile_rules_frag}\" 1>&2
+        echo '***' is missing in ${PWD=`${PWDCMD-pwd}`}. 1>&2
+        cp ${srcdir}/${Makefile_in} ./Makefile.tem
+      fi
+  esac
+  # working copy now in ${Makefile}.tem
+
+  # Conditionalize for this site.
+  rm -f ${Makefile}
+  case "${site}" in
+    "") mv ./Makefile.tem ${Makefile} ;;
+    *)
+      site_makefile_frag=${srcdir}/config/ms-${site}
+
+      if [ -f ${site_makefile_frag} ] ; then
+        sed -e "/^####/  r ${site_makefile_frag}" ./Makefile.tem > ${Makefile}
+      else
+        mv ./Makefile.tem ${Makefile}
+        site_makefile_frag=
+      fi
+      ;;
+  esac
+  # working copy now in ${Makefile}
+
+  # Conditionalize the makefile for this host.
+  rm -f ./Makefile.tem
+  case "${host_makefile_frag}" in
+    "") mv ${Makefile} ./Makefile.tem ;;
+    *)
+      if [ ! -f ${host_makefile_frag} ] ; then
+        host_makefile_frag=${srcdir}/${host_makefile_frag}
+      fi
+      if [ -f ${host_makefile_frag} ] ; then
+        sed -e "/^####/  r ${host_makefile_frag}" ${Makefile} > ./Makefile.tem
+      else
+        echo '***' Expected host makefile fragment \"${host_makefile_frag}\" 1>&2
+        echo '***' is missing in ${PWD=`${PWDCMD-pwd}`}. 1>&2
+        mv ${Makefile} ./Makefile.tem
+      fi
+  esac
+  # working copy now in ./Makefile.tem
+
+  # Conditionalize the makefile for this target.
+  rm -f ${Makefile}
+  case "${target_makefile_frag}" in
+    "") mv ./Makefile.tem ${Makefile} ;;
+    *)
+      if [ ! -f ${target_makefile_frag} ] ; then
+        target_makefile_frag=${srcdir}/${target_makefile_frag}
+      fi
+      if [ -f ${target_makefile_frag} ] ; then
+        sed -e "/^####/  r ${target_makefile_frag}" ./Makefile.tem > ${Makefile}
+      else
+        mv ./Makefile.tem ${Makefile}
+        target_makefile_frag=
+      fi
+      ;;
+  esac
+  # working copy now in ${Makefile}
+
+  # Emit the default values of this package's macros.
+  rm -f ./Makefile.tem
+  case "${package_makefile_frag}" in
+    "") mv ${Makefile} ./Makefile.tem ;;
+    *)
+      if [ ! -f ${package_makefile_frag} ] ; then
+        package_makefile_frag=${srcdir}/${package_makefile_frag}
+      fi
+      if [ -f ${package_makefile_frag} ] ; then
+        sed -e "/^####/  r ${package_makefile_frag}" ${Makefile} > ./Makefile.tem
+      else
+        echo '***' Expected package makefile fragment \"${package_makefile_rules_frag}\" 1>&2
+        echo '***' is missing in ${PWD=`${PWDCMD-pwd}`}. 1>&2
+        mv ${Makefile} ./Makefile.tem
+      fi
+  esac
+  # real copy now in ./Makefile.tem
+
+  # record if we want runtime library stuff installed in libsubdir.
+  # Blank means no.
+  if test -z "${enable_version_specific_runtime_libs}"; then
+    enable_version_specific_runtime_libs=no
+  fi
+
+  sed -e "s|@configlinks@|${configlinks}|" \
+      -e "s|@build_alias@|${build_alias}|" \
+      -e "s|@build_cpu@|${build_cpu}|" \
+      -e "s|@build_vendor@|${build_vendor}|" \
+      -e "s|@build_os@|${build_os}|" \
+      -e "s|@host_alias@|${host_alias}|" \
+      -e "s|@host_cpu@|${host_cpu}|" \
+      -e "s|@host_vendor@|${host_vendor}|" \
+      -e "s|@host_os@|${host_os}|" \
+      -e "s|@target_alias@|${target_alias}|" \
+      -e "s|@target_cpu@|${target_cpu}|" \
+      -e "s|@target_vendor@|${target_vendor}|" \
+      -e "s|@target_os@|${target_os}|" \
+      -e "s|@target_makefile_frag@|${target_makefile_frag}|" \
+      -e "s|@host_makefile_frag@|${host_makefile_frag}|" \
+      -e "s|@enable_shared@|${enable_shared}|" \
+      -e "s|@enable_threads@|${enable_threads}|" \
+      -e "s|@enable_version_specific_runtime_libs@|${enable_version_specific_runtime_libs}|" \
+      -e "s|@gcc_version_trigger@|${gcc_version_trigger}|" \
+      -e "s|@gcc_version@|${gcc_version}|" \
+      ./Makefile.tem > ${Makefile}
+  mv -f ${Makefile} ./Makefile.tem
+  # Real copy now in Makefile.tem; no prologue.
+
+  # reset prefix, exec_prefix, srcdir, SUBDIRS, NONSUBDIRS,
+  # remove any form feeds.
+  sed -e "s|@configdirs@|${configdirs}|" \
+      -e "s|@prefix@|${prefix}|" \
+      -e "s|@exec_prefix@|${exec_prefix}|" \
+      -e "s|@bindir@|${bindir}|" \
+      -e "s|@sbindir@|${sbindir}|" \
+      -e "s|@libexecdir@|${libexecdir}|" \
+      -e "s|@datadir@|${datadir}|" \
+      -e "s|@sysconfdir@|${sysconfdir}|" \
+      -e "s|@sharedstatedir@|${sharedstatedir}|" \
+      -e "s|@localstatedir@|${localstatedir}|" \
+      -e "s|@libdir@|${libdir}|" \
+      -e "s|@includedir@|${includedir}|" \
+      -e "s|@oldincludedir@|${oldincludedir}|" \
+      -e "s|@infodir@|${infodir}|" \
+      -e "s|@mandir@|${mandir}|" \
+      -e "s|@CC@|${CC}|" \
+      -e "s|@CXX@|${CXX}|" \
+      -e "s|@CFLAGS@|${CFLAGS}|" \
+      -e "s|@CXXFLAGS@|${CXXFLAGS}|" \
+      -e "s|@config_shell@|${config_shell}|" \
+      -e "s|@srcdir@|${srcdir}|" \
+      -e "s/\f//" \
+      -e "s:@program_transform_name@:${program_transform_name}:" \
+      -e "s|@tooldir@|${tooldir}|" \
+      -e "s|@build_tooldir@|${tooldir}|" \
+      -e "s:@DEFAULT_YACC@:${DEFAULT_YACC}:" \
+      -e "s:@DEFAULT_LEX@:${DEFAULT_LEX}:" \
+      -e "s:@DEFAULT_M4@:${DEFAULT_M4}:" \
+          ./Makefile.tem > ${Makefile}
+
+  # If this is a Canadian Cross, preset the values of many more
+  # tools.
+  if [ "${build}" != "${host}" ]; then
+    for var in ${tools}; do
+      eval val=\$${var}
+      sed -e "/^${var}[        ]*=/{
+              :loop1
+              /\\\\$/ N
+              /\\\\$/ b loop1
+              s/\\\\\\n//g
+              s%^${var}[       ]*=.*$%${var} = ${val}%
+              }" ${Makefile} > ${Makefile}.tem
+      mv -f ${Makefile}.tem ${Makefile}
+    done
+  fi
+  # If this is NOT a Canadian Cross, preset the values of some more
+  # tools.  The above line should get merged into this, but this
+  # substitutes *once* where the above substitutes *globally*; that
+  # needs to be worked out before the merger.  The issue is in Makefile
+  # fragment elements (ick, yuck, ugh).
+  if [ "${build}" = "${host}" ]; then
+    for var in ${tools}; do
+      eval val=\$${var}
+      sed -e "s%@${var}@%${val}%" ${Makefile} > ${Makefile}.tem
+      mv -f ${Makefile}.tem ${Makefile}
+    done
+  fi
+
+  # final copy now in ${Makefile}
 
-while [ -n "$configdirs" ]
-do
-       # set configdir to car of configdirs, configdirs to cdr of configdirs
-       set $configdirs; configdir=$1; shift; configdirs=$*
-
-       # check for target override
-       targetspecificdir=${configdir}.${target}
-       if [ -d ${targetspecificdir} ]
-       then
-               configdir=${targetspecificdir}
-       fi
+else
+  echo "No Makefile.in found in ${srcdir}/., unable to configure" 1>&2
+fi
 
-       echo Configuring ${configdir}...
-       (cd ${configdir} ;
-               ./configure ${forcesubdirs} ${removing} +host=${host} ${target}) \
-               | sed 's/^/     /'
-done
+rm -f ./Makefile.tem
+
+case "${host_makefile_frag}" in
+  "") using= ;;
+  *) using="and \"${host_makefile_frag}\"" ;;
+esac
+
+case "${target_makefile_frag}" in
+  "") ;;
+  *) using="${using} and \"${target_makefile_frag}\"" ;;
+esac
+
+case "${site_makefile_frag}" in
+  "") ;;
+  *) using="${using} and \"${site_makefile_frag}\"" ;;
+esac
+
+newusing=`echo "${using}" | sed 's/and/using/'`
+using=${newusing}
+echo "Created \"${Makefile}\" in" ${PWD=`${PWDCMD-pwd}`} ${using}
+
+. ${tmpfile}.pos
+
+# describe the chosen configuration in config.status.
+# Make that file a shellscript which will reestablish
+# the same configuration.  Used in Makefiles to rebuild
+# Makefiles.
+
+case "${norecursion}" in
+  "") arguments="${arguments} --norecursion" ;;
+  *) ;;
+esac
+
+echo "#!/bin/sh
+# ${NO_EDIT}
+# This directory was configured as follows:
+${progname}" ${arguments}  "
+# ${using}" > ./config.new
+chmod a+x ./config.new
+if [ -r ./config.back ] ; then
+  mv -f ./config.back ./config.status
+fi
+${config_shell} ${moveifchange} ./config.new ./config.status
+
+# Perform the same cleanup as the trap handler, minus the "exit 1" of course,
+# and reset the trap handler.
+rm -rf ${tmpdir}
+trap 0
 
 exit 0
 
 #
-# $Log$
-# Revision 1.3  1991/04/11 02:41:51  rich
-# Cut 2 config.  Subdirs.
-#
+# Local Variables:
+# fill-column: 131
+# End:
 #
-#
-
 
-# end of configure.template
+# end of configure