In configure{.in} {host|target}_makefile_frag should name a file
[deliverable/binutils-gdb.git] / configure
index 1589aa94efe497be3b55c4abcdebee3625b37aa0..6db69d31ffca14759ce95bbc949830417dcfa753 100755 (executable)
--- a/configure
+++ b/configure
@@ -1,33 +1,26 @@
 #!/bin/sh
-# Please do not edit this file.  It is generated automatically from
-# configure.in and a configure template.
-configdirs=
-
-# the debugger.
-#set -x
 
-#!/bin/sh
-
-# Configuration script template
-#   Copyright (C) 1988, 1990, 1991 Free Software Foundation, Inc.
+# Configuration script
+#   Copyright (C) 1988, 1990, 1991, 1992 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.
-
-#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.
-
-#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.
-
-# $Id$
+# 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+# Please email any bugs, comments, and/or additions to this file to:
+# configure@cygnus.com
 
 #
 # Shell script to create proper links to machine-dependent files in
@@ -38,6 +31,11 @@ configdirs=
 #      config.status is removed.
 #
 
+# NOTE: This script contains support for a Cygnus experimental feature, called
+# +subdirs, which is currently, tentatively, de-supported.
+
+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
 symbolic_link='ln -s'
@@ -47,126 +45,267 @@ symbolic_link='ln -s'
 #hard_link="echo ln"
 #symbolic_link="echo ln -s"
 
-progname=$0
-
 # clear some things potentially inherited from environment.
-ansi=
+
+Makefile=Makefile
+Makefile_in=Makefile.in
+arguments=$*
+commontargets=
+configdirs=
+datadir=
+datadiroption=
 defaulttargets=
-destdir=
 fatal=
-hostsubdir=
-norecurse=
+floating_point=default
+gas=default
+host_makefile_frag=
+hosts=
+next_host=
+next_prefix=
+next_site=
+next_srcdir=
+next_target=
+next_tmpdir=
+norecursion=
+prefix=/usr/local
+progname=
+recurring=
 removing=
+site_makefile_frag=
 srcdir=
 srctrigger=
 target=
+target_makefile_frag=
 targets=
-targetsubdir=
-template=
+undefinedargs=
 verbose=
+version="$Revision$"
+x11=default
+
+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 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.
+##
+## otherwise we prepend `pwd` to $0 and hope that will give us an absolute
+## path.
+##
+
+PWD=`pwd`
+
+if echo $0 | grep '^/' > /dev/null ; then
+       progname=$0
+elif echo $0 | grep '/' > /dev/null ; then
+       progname=${PWD}/$0
+else
+       progname=$0
+       PATH=$PATH:${PWD} ; export PATH
+fi
 
 for arg in $*;
 do
-       case ${arg} in
-       -ansi | +ansi)
-               ansi=true
-               ;;
-       -destdir=* | +destdir=* | +destdi=* | +destd=* | +dest=* | +des=* | +de=* | +d=*)
-               destdir=`echo ${arg} | sed 's/[+-]d[a-z]*=//'`
-               ;;
-       -forcesubdirs | +forcesubdirs | +forcesubdir | +forcesubdi | +forcesubd \
-       | +forcesub | +forcesu | +forces | +force | +forc | +for | +fo | +f)
-               forcesubdirs=${arg}
-               ;;
-       -languages=* | +languages=* | +language=* | +languag=* \
-               | +langua=* | +langu=* | +lang=* | +lan=* | +la=* \
-               | +l=*)
-               languages="${languages} `echo ${arg} | sed 's/[+-]l[a-z]*=//'`"
-               ;;
-       -gas | +gas | +ga | +g)
-               gas=yes
-               ;;
-       -help | +h | +help)
-               fatal=true
-               ;;
-       -nfp | +nfp | +nf | +n)
-               nfp=yes
-               ;;
-       -norecurse | +norecurse)
-               norecurse=true
-               ;;
-       -rm | +rm)
-               removing=${arg}
-               ;;
-#      -srcdir=* | +srcdir=* | +srcdi=* | +srcd=* | +src=* | +sr=* | +s=*)
-#              srcdir=`echo ${arg} | sed 's/[+-]s[a-z]*=//'`
-#              ;;
-       -target=* | +target=* | +targe=* | +targ=* | +tar=* | +ta=* | +t=*)
-               if [ -n "${targets}" ] ; then
-                       forcesubdirs="+forcesubdirs"
-               fi
-
-               newtargets="${targets} `echo ${arg} | sed 's/[+-]t[a-z]*=//'`"
-               targets="${newtargets}"
-               ;;
-       -template=* | +template=*)
-               template=`echo ${arg} | sed 's/[+-]template=//'`
-               ;;
-       +verbose | +verbos | +verbo | +verb | +ver | +ve | +v)
-               verbose=${arg}
-               ;;
-       -* | +*)
-               (echo ;
-               echo "Unrecognized option: \"${arg}\"". ;
-               echo) 1>&2
-               fatal=true
-               ;;
-       *)
-               if [ -n "${hosts}" ] ; then
-                       forcesubdirs="+forcesubdirs"
-               fi
+       # handle things that might have args following as separate words
+       if [ -n "${next_prefix}" ] ; then prefix=${arg} ; prefixoption="-prefix=${prefix}" ; next_prefix=
+       elif [ -n "${next_datadir}" ] ; then datadir=${arg} ; datadiroption="-datadir=${datadir}" ; next_datadir=
+       elif [ -n "${next_site}" ] ; then site=${arg} ; next_site=
+       elif [ -n "${next_srcdir}" ] ; then srcdir=${arg} ; next_srcdir=                
+       elif [ -n "${next_target}" ] ; then
+               next_target=
+               case "${targets}" in
+               "")
+                       newtargets="${targets} ${arg}"
+                       targets="${newtargets}"
+                       ;;
+               *)
+                       echo '***' Can only configure for one target at a time.
+                       fatal=yes
+                       ;;
+               esac
+       elif [ -n "${next_tmpdir}" ] ; then
+               next_tmpdir=
+               tmpdiroption="--tmpdir=${arg}"
+               TMPDIR=${arg}
 
-               newhosts="${hosts} ${arg}"
-               hosts=${newhosts}
-               ;;
-       esac
+       else
+               case ${arg} in
+               -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* | --da=* | --d=*)
+                       datadir=`echo ${arg} | sed 's/^[-a-z]*=//'`
+                       datadiroption=${arg}
+                       ;;
+               -datadir | --datadir | --datadi | --datad | --data | --dat | --da | --d)
+                       next_datadir=yes
+                       ;;
+               -gas | --g*)
+                       gas=yes
+                       ;;
+               -help | --he*)
+                       fatal=true
+                       ;;
+               -host=* | --host=* | --hos=* | --ho=*)
+                       case "${hosts}" in
+                       "")
+                               newhosts="${hosts} `echo ${arg} | sed 's/^[-a-z]*=//'`"
+                               hosts="${newhosts}"
+                               ;;
+                       *)
+                               echo '***' Can only configure for one host at a time.
+                               fatal=yes
+                               ;;
+                       esac
+                       ;;
+               -nfp | --nf*)
+                       floating_point=no
+                       ;;
+               -norecursion | --no*)
+                       norecursion=true
+                       ;;
+               -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+                       prefix=`echo ${arg} | sed 's/^[-a-z]*=//'`
+                       prefixoption=${arg}
+                       ;;
+               -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+                       next_prefix=yes
+                       ;;
+               -recurring | --recurring | --recurrin | --recurri | --recurr | --recur | --recu | --rec | --re)
+                       recurring=true
+                       arguments=`echo ${arguments} | sed "s:${arg}::"`
+                       ;;
+               -rm | --rm)
+                       removing=${arg}
+                       ;;
+               -site=* | --site=* | --sit=* | --si=*)
+                       site=`echo ${arg} | sed 's/^[-a-z]*=//'`
+                       ;;
+               -site | --site | --sit | --si)
+                       next_site=yes
+                       ;;
+               -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+                       srcdir=`echo ${arg} | sed 's/^[-a-z]*=//'`
+                       ;;
+               -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+                       next_srcdir=yes
+                       ;;
+               -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=*)
+                       case "${targets}" in
+                       "")
+                               newtargets="${targets} `echo ${arg} | sed 's/^[-a-z]*=//'`"
+                               targets="${newtargets}"
+                               ;;
+                       *)
+                               echo '***' Can only configure for one target at a time.
+                               fatal=yes
+                               ;;
+                       esac
+                       ;;
+               -target | --target | --targe | --targ | --tar | --ta)
+                       next_target=yes
+                       ;;
+               -tmpdir=* | --tmpdir=* | --tmpdi=* | --tmpd=* | --tmp=* | --tm=*)
+                       tmpdiroption=${arg}
+                       TMPDIR=`echo ${arg} | sed 's/^[-a-z]*=//'`
+                       ;;
+               -tmpdir | --tmpdir | --tmpdi | --tmpd | --tmp | --tm)
+                       next_tmpdir=yes
+                       ;;
+               -v | -verbose | --v)
+                       verbose=${arg}
+                       ;;
+               -version | -V | --version | --V)
+                       echo "This is Cygnus Configure version" `echo ${version} | sed 's/[ $:]//g'`
+                       exit 0
+                       ;;
+               -x | --x) ;;
+               -* | --*)
+                       (echo ;
+                       echo "Unrecognized option: \"${arg}\"". ;
+                       echo) 1>&2
+                       fatal=true
+                       ;;
+               *)
+                       case "${undefs}" in
+                       "")
+                               newundefs="${undefs} ${arg}"
+                               undefs=${newundefs}
+                               ;;
+                       *)
+                               echo '***' Can only configure for one host and one target at a time.
+                               fatal=yes
+                               ;;
+                       esac
+                       ;;
+               esac
+       fi
 done
 
-if [ -n "${verbose}" ] ; then
-       echo `pwd`/configure $*
-       echo targets=\"${targets}\"
-fi
+# process host and target
+case "${fatal}" in
+"")
+#      # Complain if an arg is missing
+#      if [ -z "${hosts}" ] ; then
+#              (echo ;
+#              echo "configure: No HOST specified." ;
+#              echo) 1>&2
+#              fatal=true
+#      fi
 
-# process host and target only if not rebuilding configure itself or removing.
-if [ -z "${template}" -a -z "${removing}" -a -z "${fatal}" ] ; then
-       # Complain if an arg is missing
-       if [ -z "${hosts}" ] ; then
-               (echo ;
-               echo "configure: No HOST specified." ;
-               echo) 2>&1
-               fatal=true
+### This is a bit twisted.
+### * if all three are specified, this is an error.
+### * if we have neither hosts, nor unadorned args, this is an error.
+### * if no hosts are specified, then the unadorned args are hosts, but if
+### there were none, this is an error.
+### * if no targets are specified, then the unadorned args are targets, but if
+### there were no unadorned args, then the hosts are also targets.
+
+       if [ -n "${hosts}" -a -n "${targets}" -a -n "${undefs}" ] ; then
+               echo '***' Can only configure for one host and one target at a time.
+               fatal=yes
+       elif [ -z "${hosts}" -a -z "${undefs}" ] ; then
+               echo '***' You must tell me for which host you want to configure.
+               fatal=yes
+       else
+               case "${hosts}" in
+               "") hosts=${undefs} ;;
+               *) ;;
+               esac
+
+               case "${targets}" in
+               "")
+                       case "${undefs}" in
+                       "")     targets=${hosts} ;;
+                       *)      targets=${undefs} ;;
+                       esac
+                       ;;
+               *) ;;
+               esac
        fi
-fi
+       ;;
+*) ;;
+esac
 
 if [ -n "${fatal}" -o "${hosts}" = "help" ] ; then
        (echo "Usage: configure HOST" ;
        echo ;
        echo "Options: [defaults in brackets]" ;
-       echo " +ansi            configure w/ANSI library. [no ansi lib]" ;
-       echo " +destdir=MYDIR   configure for installation into MYDIR. [/usr/local]" ;
-       echo " +forcesubdirs    configure in subdirectories.  [in source directories]" ;
-       echo " +lang=LANG       configure to build LANG. [gcc]" ;
-       echo " +help            print this message. [normal config]" ;
-       echo " +gas             configure the compilers for use with gas. [native as]" ;
-       echo " +nfp             configure the compilers default to soft floating point. [hard float]" ;
-       echo " +norecurse       configure this directory only. [recurse]" ;
-       echo " +rm              remove this configuration. [build a configuration]" ;
-       echo " +target=TARGET   configure for TARGET.  [TARGET = HOST]" ;
-       echo " +template=TEM    rebuild configure using TEM. [normal config]" ;
+       echo " -datadir=MYDIR   configure for installation of host dependent files into MYDIR. [\"/usr/local\"]" ;
+       echo " -gas             configure the compilers for use with gas. [native as]" ;
+       echo " -help            print this message. [normal config]" ;
+       echo " -lang=LANG       configure to build LANG. [gcc]" ;
+       echo " -nfp             configure the compilers default to soft floating point. [hard float]" ;
+       echo " -norecursion     configure this directory only. [recurse]" ;
+       echo " -prefix=MYDIR    configure for installation of host dependent files into MYDIR. [\"/usr/local\"]" ;
+       echo " -rm              remove this configuration. [build a configuration]" ;
+       echo " -site            configure with site specific makefile" ;
+       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.  [ TMPDIR = \"/tmp\" ]" ;
        echo ;
        echo "Where HOST and TARGET are something like \"vax\", \"sun3\", \"encore\", etc." ;
-       echo "Asking for more than one \"+target\" implies \"+forcesubdirs\".  Any other" ;
-       echo "options given will apply to all targets.") 1>&2
+       ) 1>&2
 
        if [ -r config.status ] ; then
                cat config.status
@@ -175,105 +314,84 @@ if [ -n "${fatal}" -o "${hosts}" = "help" ] ; then
        exit 1
 fi
 
-#### configure.in common parts 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.
+configsub=`echo ${progname} | sed 's/configure$/config.sub/'`
 
-configdirs="libiberty bfd binutils ld gas readline gcc gnulib clib"
-srctrigger=README.configure
-srcname="gnu development package"
-
-## end of common part.
+if ${configsub} `echo ${hosts} | sed -e 's/ .*//'` >/dev/null 2>&1 ; then
+       true
+else
+       echo '***' cannot find config.sub.
+       exit 1
+fi
 
-# are we rebuilding config itself?
-if [ -n "${template}" ] ; then
-       if [ ! -r ${template} ] ; then
-               echo "Can't find template ${template}."
+case "${srcdir}" in
+"")
+       if [ -r configure.in ] ; then
+               srcdir=.
+       else
+               echo '***' "Can't find configure.in.  Try using -srcdir=some_dir"
                exit 1
        fi
+       ;;
+*) ;;
+esac
 
-# prep the template
-       sed -e '/^#### configure.in common parts come in here.$/,/^## end of common part.$/c\
-#### configure.in common parts come in here.\
-## end of common part.' \
-       -e '/^#### configure.in per-host parts come in here.$/,/^## end of per-host part.$/c\
-#### configure.in per-host parts come in here.\
-## end of per-host part.' \
-       -e '/^#### configure.in per-target parts come in here.$/,/^## end of per-target part.$/c\
-#### configure.in per-target parts come in here.\
-## end of per-target part.' \
-       < ${template} > template.new
-
-       if [ -r configure.in ] ; then
-               if [ -z "`grep '^# per\-host:' configure.in`" ] ; then
-                       echo `pwd`/configure.in has no "per-host:" line.
-                       exit 1
-               fi
-
-               if [ -z "`grep '^# per\-target:' configure.in`" ] ; then
-                       echo `pwd`/configure.in has no "per-target:" line.
-                       exit 1
-               fi
-
-               # split configure.in into common, per-host, and per-target parts
-               sed -e '/^# per\-host:/,$d' configure.in > configure.com
-               sed -e '1,/^# per\-host:/d' -e '/^# per\-target:/,$d' configure.in > configure.hst
-               sed -e '1,/^# per\-target:/d' configure.in > configure.tgt
 
-               # and insert them
-               sed -e '/^#### configure.in common parts come in here.$/  r configure.com' \
-                       -e '/^#### configure.in per\-host parts come in here.$/  r configure.hst' \
-                       -e '/^#### configure.in per\-target parts come in here.$/  r configure.tgt' \
-                       template.new > configure.new
+# default datadir
+case "${datadir}" in
+"") datadir="$(prefix)/lib" ;;
+*) ;;
+esac
 
-               rm -f configure.com configure.tgt configure.hst
-       else
-               echo Warning: no configure.in in `pwd`
-               cat ${template} >> configure
-       fi
+### break up ${srcdir}/configure.in.
+case "`grep '^# per\-host:' ${srcdir}/configure.in`" in
+"")
+       echo '***' ${srcdir}/configure.in has no "per-host:" line. 1>&2
+       exit 1
+       ;;
+*) ;;
+esac
 
-       chmod a+x configure.new
-       rm template.new
-#      mv configure configure.old
-       mv configure.new configure
-       echo Rebuilt configure in `pwd`
-
-       if [ -z "${norecurse}" ] ; then
-               while [ -n "${configdirs}" ] ; do
-                       # set configdir to car of configdirs, configdirs to cdr of configdirs
-                       set ${configdirs}; configdir=$1; shift; configdirs=$*
-
-                       if [ "`echo ${configdir}.*`" != "${configdir}.*" ] ; then
-                               targetspecificdirs=${configdir}.*
-                       else
-                               targetspecificdirs=
-                       fi
+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 &%*%$*# 14 char file names
+tmpfile=${TMPDIR}/cONf$$
+trap "rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos" 0
+
+# 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
 
-                       for i in ${configdir} ${targetspecificdirs} ; do
-                               if [ -d $i ] ; then
-                                       if [ -r $i/configure ] ; then
-                                               (cd $i ;
-                                                       ./configure +template=${template} ${verbose})
-                                       else
-                                               echo No configure script in `pwd`/$i
-                                       fi
-                               else
-                                       echo Warning: directory $i is missing.
-                               fi
-                       done
-               done
-       fi
+### do common part of configure.in
 
-       exit 0
-fi
+. ${tmpfile}.com
 
 # some sanity checks on configure.in
-if [ -z "${srctrigger}" ] ; then
-       echo srctrigger not set in configure.in. `pwd` not configured.
+case "${srctrigger}" in
+"")
+       echo '***' srctrigger not set in ${PWD}/configure.in.
        exit 1
-fi
+       ;;
+*) ;;
+esac
 
 for host in ${hosts} ; do
        # Default other arg
@@ -282,82 +400,58 @@ for host in ${hosts} ; do
                defaulttargets=true
        fi
 
-       host_makefile_frag=config/hmake-${host}
-
-#### configure.in per-host parts come in here.
+       host_alias=${host}
 
-## end of per-host part.
+       result=`${configsub} ${host}`
+       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}
 
+       . ${tmpfile}.hst
 
        for target in ${targets} ; do
 
-               if [ -n "${verbose}" ] ; then
-                       echo host \= \"${host}\", target \= \"${target}\".
-               fi
+               target_alias=${target}
+               result=`${configsub} ${target}`
+               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}
 
-               target_makefile_frag=config/tmake-${target}
+               . ${tmpfile}.tgt
 
-#### configure.in per-target parts come in here.
-## end of per-target part.
+               case "${host_alias}" in
+               "${target_alias}")      subdirname=H-${host_alias} ;;
+               *)                      subdirname=X-${host_alias}-${target_alias} ;;
+               esac
 
-               # Temporarily, we support only direct subdir builds.
-               hostsubdir=Host-${host}
-               targetsubdir=Target-${target}
-
-               if [ -n "${removing}" ] ; then
-                       if [ -n "${forcesubdirs}" ] ; then
-                               if [ -d "${hostsubdir}" ] ; then
-                                       rm -rf ${hostsubdir}/${targetsubdir}
-
-                                       if [ -z "`(ls ${hostsubdir}) 2>&1 | grep Target-`" ] ; then
-                                               rm -rf ${hostsubdir}
-                                       fi
-                               else
-                                       echo Warning: no `pwd`/${hostsubdir} to remove.
-                               fi
-                       else
-                               rm -f Makefile config.status ${links}
-                       fi
-               else
-                       if [ -n "${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 ${targetsubdir}
-
-                               srcdir=../..
-                       else
-                               # if not subdir builds, then make sure none exist.
-                               if [ -n "`(ls .) 2>&1 | grep Host-`" ] ; then
-                                       echo "Configured subdirs exist.  `pwd` not configured."
-                                       exit 1
-                               fi
-                       fi
+               case "${namesubdir}" in
+               "") ;;
+               *) subdirname=${namesubdir} ;;
+               esac
 
+               case "${removing}" in
+               "")
                        # Find the source files, if location was not specified.
-                       if [ -z "${srcdir}" ] ; then
+                       case "${srcdir}" in
+                       "")
                                srcdirdefaulted=1
                                srcdir=.
-                               if [ -n "${srctrigger}" -a ! -r ${srctrigger} ] ; then
+                               if [ ! -r ${srctrigger} ] ; then
                                        srcdir=..
                                fi
-                       fi
+                               ;;
+                       *) ;;
+                       esac
 
-                       if [ -n "${srctrigger}" -a ! -r ${srcdir}/${srctrigger} ] ; then
-                               if [ -z "${srcdirdefaulted}" ] ; then
-                                       echo "${progname}: Can't find ${srcname} sources in `pwd`/${srcdir}" 1>&2
-                               else
-                                       echo "${progname}: Can't find ${srcname} sources in `pwd`/. or `pwd`/.." 1>&2
-                               fi
+                       if [ ! -r ${srcdir}/${srctrigger} ] ; then
+                               case "${srcdirdefaulted}" in
+                               "") echo '***' "${progname}: Can't find ${srcname} sources in ${PWD}/${srcdir}" 1>&2 ;;
+                               *)  echo '***' "${progname}: Can't find ${srcname} sources in ${PWD}/. or ${PWD}/.." 1>&2 ;;
+                               esac
 
-                               echo \(At least ${srctrigger} is missing.\) 1>&2
+                               echo '***' \(At least ${srctrigger} is missing.\) 1>&2
                                exit 1
                        fi
 
@@ -371,8 +465,8 @@ for host in ${hosts} ; do
                                set ${links}; link=$1; shift; links=$*
 
                                if [ ! -r ${srcdir}/${file} ] ; then
-                                       echo "${progname}: cannot create a link \"${link}\"," 1>&2
-                                       echo "since the file \"${file}\" does not exist." 1>&2
+                                       echo '***' "${progname}: cannot create a link \"${link}\"," 1>&2
+                                       echo '***' "since the file \"${file}\" does not exist." 1>&2
                                        exit 1
                                fi
 
@@ -382,271 +476,247 @@ for host in ${hosts} ; do
                                ${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}/${file}\"." 1>&2
+                                       echo '***' "${progname}: unable to link \"${link}\" to \"${srcdir}/${file}\"." 1>&2
                                        exit 1
                                fi
-                               echo "Linked \"${link}\" to \"${srcdir}/${file}\"."
+
+                               case "${verbose}" in
+                               "") ;;
+                               *)  echo "Linked \"${link}\" to \"${srcdir}/${file}\"." ;;
+                               esac
                        done
 
                        # Create a .gdbinit file which runs the one in srcdir
                        # and tells GDB to look there for source files.
 
-                       case ${srcdir} in
-                       .)
-                               ;;
-                       *)
-                               echo "dir ." > .gdbinit
-                               echo "dir ${srcdir}" >> .gdbinit
-                               echo "source ${srcdir}/.gdbinit" >> .gdbinit
-                               ;;
-                       esac
+                       if [ -r ${srcdir}/.gdbinit ] ; then
+                               case ${srcdir} in
+                               .)
+                                       ;;
+                               *) cat > .gdbinit <<EOF
+# ${NO_EDIT} > .gdbinit
+dir .
+dir ${srcdir}
+source ${srcdir}/.gdbinit
+EOF
+                                       ;;
+                               esac
+                       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.
 
-               # 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.
-
-                       # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
-                       if [ "${host}" != "${target}" ] ; then
-                               echo "CROSS=-DCROSS_COMPILE" > Makefile
-                               echo "ALL=start.encap" >> Makefile
-                       else
-                               echo "ALL=all.internal" > Makefile
-                       fi
+                       # code is order so as to try to sed the smallest input files we know.
 
-                       # set target, host, VPATH
-                       echo "host = ${host}" >> Makefile
-                       echo "target = ${target}" >> Makefile
+                       # the three makefile fragments MUST end up in the resulting Makefile in this order: target, host, and site.
+                       # so do these separately because I don't trust the order of sed -e expressions.
 
-                       if [ -n "${forcesubdirs}" ] ; then
-                               echo "subdir = /${hostsubdir}/${targetsubdir}" >> Makefile
-                       else
-                               echo "subdir =" >> Makefile
-                       fi
-
-               #       echo "workdir = `pwd`" >> Makefile
-                       echo "VPATH = ${srcdir}" >> Makefile
+                       # Conditionalize for this site from "Makefile.in" (or whatever it's called) into Makefile.tem
+                       case "${site}" in
+                       "") cp ${srcdir}/${Makefile_in} Makefile.tem ;;
+                       *)
+                               site_makefile_frag=${srcdir}/config/ms-${site}
 
-                       # add Makefile.in
-                       cat ${srcdir}/Makefile.in >> Makefile
+                               if [ -f ${site_makefile_frag} ] ; then
+                                       sed -e "/^####/  r ${site_makefile_frag}" ${srcdir}/${Makefile_in} \
+                                               >> Makefile.tem
+                               else
+                                       cp ${srcdir}/${Makefile_in} Makefile.tem
+                                       site_makefile_frag=
+                               fi
+                               ;;
+                       esac
+                       # working copy now in Makefile.tem
 
-                       # and shake thoroughly.
                        # Conditionalize the makefile for this host.
-                       if [ -f ${srcdir}/${host_makefile_frag} ] ; then
-                               sed -e "/^####/  r ${srcdir}/${host_makefile_frag}" Makefile > Makefile.tem
-                               mv Makefile.tem Makefile
-                       fi
+                       case "${host_makefile_frag}" in
+                       "") mv Makefile.tem ${Makefile} ;;
+                       *)
+                               host_makefile_frag=${srcdir}/${host_makefile_frag}
+                               if [ -f ${host_makefile_frag} ] ; then
+                                       sed -e "/^####/  r ${host_makefile_frag}" Makefile.tem > ${Makefile}
+                               else
+                                       echo '***' Expected host makefile fragment \"${host_makefile_frag}\" 1>&2
+                                       echo '***' is missing in ${PWD}. 1>&2
+                                       mv Makefile.tem ${Makefile}
+                               fi
+                       esac
+                       # working copy now in ${Makefile}
 
                        # Conditionalize the makefile for this target.
-                       if [ -f ${srcdir}/${target_makefile_frag} ] ; then
-                               sed -e "/^####/  r ${srcdir}/${target_makefile_frag}" Makefile > Makefile.tem
-                               mv Makefile.tem Makefile
-                       fi
-
-                       # set srcdir
-                       sed "s@^srcdir = \.@srcdir = ${srcdir}@" Makefile > Makefile.tem
-                       mv Makefile.tem Makefile
+                       case "${target_makefile_frag}" in
+                       "") mv ${Makefile} Makefile.tem ;;
+                       *)
+                               target_makefile_frag=${srcdir}/${target_makefile_frag}
+                               if [ -f ${target_makefile_frag} ] ; then
+                                       sed -e "/^####/  r ${target_makefile_frag}" ${Makefile} >> Makefile.tem
+                               else
+                                       mv ${Makefile} Makefile.tem
+                                       target_makefile_frag=
+                               fi
+                               ;;
+                       esac
+                       # real copy now in Makefile.tem
+
+                       # prepend warning about editting, and a bunch of variables.
+                       # fixme-someday: remove the subdir/unsubdir lines.
+                       cat > ${Makefile} <<EOF
+# ${NO_EDIT}
+host_alias = ${host_alias}
+host_cpu = ${host_cpu}
+host_vendor = ${host_vendor}
+host_os = ${host_os}
+target_alias = ${target_alias}
+target_cpu = ${target_cpu}
+target_vendor = ${target_vendor}
+target_os = ${target_os}
+target_makefile_frag = ${target_makefile_frag}
+host_makefile_frag = ${host_makefile_frag}
+site_makefile_frag = ${site_makefile_frag}
+VPATH = ${srcdir}
+subdir =
+unsubdir = .
+EOF
+
+                       # fixme: this shouldn't be in configure.
+                       # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
+                       case "${host}" in
+                       "${target}") echo "ALL=all.internal" >> ${Makefile} ;;
+                       *)
+                               echo "CROSS=-DCROSS_COMPILE" >> ${Makefile}
+                               echo "ALL=all.cross" >> ${Makefile}
+                               ;;
+                       esac
 
-                       # set destdir
-                       if [ -n "${destdir}" ] ; then
-                               sed "s:^destdir =.*$:destdir = ${destdir}:" Makefile > Makefile.tem
-                               mv Makefile.tem Makefile
+                       # reset prefix, datadir, srcdir, SUBDIRS, NONSUBDIRS, remove any form
+                       # feeds.
+                       sed -e "s:^prefix[      ]*=.*$:prefix = ${prefix}:" \
+                               -e "s:^datadir[         ]*=.*$:datadir = ${datadir}:" \
+                               -e "s:^srcdir[  ]*=.*$:srcdir = ${srcdir}:" \
+                               -e "s:^SUBDIRS[         ]*=.*$:SUBDIRS = ${configdirs}:" \
+                               -e "s:^NONSUBDIRS[      ]*=.*$:NONSUBDIRS = ${noconfigdirs}:" \
+                               -e "s/\f//" Makefile.tem >> ${Makefile}
+                       # final copy now in ${Makefile}
+
+                       rm Makefile.tem
+
+                       if [ -n "${verbose}" -o -z "${recurring}" ] ; then
+                               case "${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 \"${site_makefile_frag}\"" ;;
+                               esac
+
+                               echo "Created \"${Makefile}\" in" ${PWD} `echo "${using}" | sed 's/and/using/'`
                        fi
 
-                       # Remove all formfeeds, since some Makes get confused by them.
-                       sed "s/\f//" Makefile >> Makefile.tem
-                       mv Makefile.tem Makefile
+                       . ${tmpfile}.pos
 
-                       # reset SUBDIRS
-                       sed "s:^SUBDIRS =.*$:SUBDIRS = ${configdirs}:" Makefile > Makefile.tem
-                       mv Makefile.tem Makefile
+                       # describe the chosen configuration in config.status.
+                       # Make that file a shellscript which will reestablish
+                       # the same configuration.  Used in Makefiles to rebuild
+                       # Makefiles.
 
-                       # reset NONSUBDIRS
-                       sed "s:^NONSUBDIRS =.*$:NONSUBDIRS = ${noconfigdirs}:" Makefile > Makefile.tem
-                       mv Makefile.tem Makefile
+                       case "${norecursion}" in
+                       "") arguments="${arguments} -norecursion" ;;
+                       *) ;;
+                       esac
 
-                       using=
-                       if [ -f ${srcdir}/${host_makefile_frag} ] ; then
-                               using=" using \"${host_makefile_frag}\""
-                       fi
+                       echo "#!/bin/sh
+# ${NO_EDIT}
+# ${PWD} was configured as follows:
+${progname}" ${arguments}  "
+# ${using}" > config.status
+                       chmod a+x config.status
+                       ;;
+               *)      rm -f ${Makefile} config.status ${links} ;;
+               esac
+
+               # If there are subdirectories, then recur. 
+               if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then 
+                       for configdir in ${configdirs} ; do
+                               case "${verbose}" in
+                               "") ;;
+                               *) echo Configuring ${configdir}... ;;
+                               esac
+
+                               if [ -d ${srcdir}/${configdir} ] ; then
+                                       case "${srcdir}" in
+                                       ".") ;;
+                                       *)
+                                               if [ ! -d ./${configdir} ] ; then
+                                                       mkdir ./${configdir}
+                                               fi
+                                               ;;
+                                       esac
+
+                                       POPDIR=${PWD}
+                                       cd ${configdir} 
+
+### figure out what to do with srcdir & guest configure
+                                       case "${srcdir}" in
+                                       ".") newsrcdir=${srcdir} ;; # no -srcdir option.  We're building in place.
+                                       /*) # absolute path
+                                               newsrcdir=${srcdir}/${configdir}
+                                               srcdiroption="-srcdir=${newsrcdir}"
+                                               ;;
+                                       *) # otherwise relative
+                                               newsrcdir=../${srcdir}/${configdir}
+                                               srcdiroption="-srcdir=${newsrcdir}"
+                                               ;;
+                                       esac
+
+### The recursion line is here.
+                                       if [ -f ${newsrcdir}/configure ] ; then
+                                               recprog=${newsrcdir}/configure
+                                       else
+                                               recprog=${progname}
+                                       fi
 
-                       if [ -f ${srcdir}/${target_makefile_frag} ] ; then
-                               if [ -z "${using}" ] ; then
-                                       andusing=" using \"${target_makefile_frag}\""
+                                       if ${recprog} -recurring ${host_alias} -target=${target_alias} \
+                                               ${verbose} ${subdirs} ${removing} ${prefixoption} \
+                                               ${tmpdiroption} ${namesubdiroption} ${datadiroption} \
+                                               ${srcdiroption} ; then
+                                               true
+                                       else
+                                               exit 1
+                                       fi
+
+                                       cd ${POPDIR}
                                else
-                                       andusing="${using} and \"${target_makefile_frag}\""
+                                       case "${verbose}" in
+                                       "") ;;
+                                       *) echo Warning: source directory \"${srcdir}/${configdir}\" is missing. ;;
+                                       esac
                                fi
-                       else
-                               andusing=${using}
-                       fi
-
-                       echo "Created \"Makefile\"" in `pwd`${andusing}.
-
-                       if [ "${host}" = "${target}" ] ; then
-                               echo "Links are now set up for use with a ${target}." \
-                                       > config.status
-               #                       | tee ${srcdir}/config.status
-                       else
-                               echo "Links are now set up for host ${host} and target ${target}." \
-                                       > config.status
-               #                       | tee ${srcdir}/config.status
-                       fi
-
-                       originaldir=`pwd`
-                       cd ${srcdir}
+                       done
                fi
        done # for each target
-
-#      # Now build a Makefile for this host.
-#      if [ -n "${forcesubdirs}" ] ; then
-#              cd ${hostsubdir}
-#              cat > GNUmakefile << E!O!F
-## Makefile generated by configure for host ${host}.
-#
-#%:
-#      for i in ${targets} ; do \
-#              $(MAKE) -C Target-\$i \$@
-#
-#all clean stage1 stage2 stage3 stage4etags tags TAGS
-#E!O!F
-#      fi
 done # for each host
 
-# If there are subdirectories, then recurse. 
-
-if [ -n "${norecurse}" -o -z "${configdirs}" ] ; then exit 0 ; fi
-
-# configdirs is not null
-for configdir in ${configdirs} ; do
-       echo Configuring ${configdir}...
-       specifics=
-       commons=
-
-       if [ -n "${defaulttargets}" ] ; then
-               for host in ${hosts} ; do
-                       if [ -d ${configdir}.${host} ] ; then
-                               newspecifics="${specifics} ${host}"
-                               specifics=${newspecifics}
-                       else
-                               newcommons="${commons} ${host}"
-                               commons=${newcommons}
-                       fi # if target specific
-               done # for each host
-
-               if [ -n "${commons}" ] ; then
-                       if [ -d ${configdir} ] ; then
-                               (cd ${configdir} ;
-                                       ./configure ${commons} ${verbose} ${forcesubdirs} ${removing}) \
-                                       | sed 's/^/     /'
-                       else
-                               echo Warning: directory \"${configdir}\" is missing.
-                       fi
-               fi # if any common hosts
-
-               if [ -n "${specifics}" ] ; then
-                       for host in ${specifics} ; do
-                               echo Configuring target specific directory ${configdir}.${host}...
-                               (cd ${configdir}.${host} ;
-                                       ./configure ${host} ${verbose} ${forcesubdirs} ${removing}) \
-                                       | sed 's/^/     /'
-                       done # for host in specifics
-               fi # if there are any specifics
-       else
-
-               for target in ${targets} ; do
-                       if [ -d ${configdir}.${target} ] ; then
-                               newspecifics="${specifics} ${target}"
-                               specifics=${newspecifics}
-                       else
-                               newcommons="${commons} +target=${target}"
-                               commons=${newcommons}
-                       fi
-
-               done # check for target specific dir override
+### clean up.
 
-               if [ -n "${verbose}" ] ; then
-                       echo "  "commons=\"${commons}\"
-                       echo "  "specifics=\"${specifics}\"
-               fi # if verbose
-
-               if [ -n "${commons}" ] ; then
-                       if [ -d ${configdir} ] ; then
-                               (cd ${configdir} ;
-                                       ./configure ${hosts} ${verbose} ${forcesubdirs} ${removing} ${commons}) \
-                                       | sed 's/^/     /'
-                       else
-                               echo Warning: directory \"${configdir}\" is missing.
-                       fi
-               fi # if any commons
-
-               if [ -n "${specifics}" ] ; then
-                       for target in ${specifics} ; do
-                               echo Configuring target specific directory ${configdir}.${target}...
-                               (cd ${configdir}.${target} ;
-                                       ./configure ${hosts} ${verbose} ${forcesubdirs} ${removing} "+target=${target}") \
-                                       | sed 's/^/     /'
-                       done
-               fi # if any specifics
-       fi # not default targets
-done
+# trap cmd above handles this now:
+#rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos
 
 exit 0
 
-#
-# $Log$
-# Revision 1.15  1991/05/27 20:54:24  rich
-# fixed a bug in multiple targets
-#
-# Revision 1.14  1991/05/22  01:44:04  rich
-# remove gdb until config issues resolve.
-#
-# Revision 1.13  1991/05/19  08:00:09  rich
-# Added gdb.
-#
-# Revision 1.12  1991/05/19  00:32:13  rich
-# Changes to deal with missing subdirs gracefully, and changes dictated
-# from dropping configure over gdb.
-#
-# Revision 1.4  1991/05/19  00:16:45  rich
-# Configure for gdb.
-#
-# Revision 1.10  1991/05/04  00:58:38  rich
-# Fix program name bug.
-#
-# Revision 1.9  1991/05/03  19:14:18  rich
-# Changed getopt to libiberty, commented out an aborted attempt at host
-# level Makefiles because it caused errors on +rm, add a warning for
-# directories expected to be removed on +rm but that don't exist.
-#
-# Revision 1.8  1991/04/24  16:50:59  rich
-# Three staging checkpoint.
-#
-# Revision 1.7  1991/04/17  01:34:47  rich
-# Added getopt for binutils, fixed problem with host dependancies in
-# configure.template.
-#
-# Revision 1.6  1991/04/16  00:18:44  rich
-# Now handles multiple hosts and targets.
-#
-# Revision 1.5  1991/04/15  23:43:44  rich
-# Now handles multiple hosts and targets.
-#
-# Revision 1.4  1991/04/13  02:11:03  rich
-# Config cut 3.  We now almost install a29k.
-#
-# Revision 1.3  1991/04/11  02:41:54  rich
-# Cut 2 config.  Subdirs.
-#
-#
-#
-
 #
 # Local Variables:
 # fill-column: 131
 # End:
 #
 
-# end of configure.template
+# end of configure
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