path: root/configure

#!/bin/sh

# Configuration script
#   Copyright (C) 1988, 1990, 1991, 1992 Free Software Foundation, Inc.

# 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

# This file was written by K. Richard Pixley.

#
# Shell script to create proper links to machine-dependent files in
# 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.
#

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'

#for Test
#remove="echo rm"
#hard_link="echo ln"
#symbolic_link="echo ln -s"

# clear some things potentially inherited from environment.

Makefile=Makefile
Makefile_in=Makefile.in
arguments=$*
configdirs=
exec_prefix=
exec_prefixoption=
fatal=
floating_point=default
gas=default
host_alias=
host_makefile_frag=
next_host=
next_prefix=
next_site=
next_srcdir=
next_target=
next_tmpdir=
norecursion=
prefix=/usr/local
progname=
program_prefix=
program_prefix_option=
silent=
site_makefile_frag=
srcdir=
srctrigger=
target_alias=
target_makefile_frag=
undefinedargs=
verbose=
version="$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 (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.
##

PWD=`pwd`
progname=$0

case "${progname}" in
/*) ;;
*/*) ;;
*)
	PATH=$PATH:${PWD} ; export PATH
	;;
esac

for arg in $*;
do
	# handle things that might have args following as separate words
	if [ -n "${next_prefix}" ] ; then prefix=${arg} ; prefixoption="-prefix=${prefix}" ; next_prefix=
	elif [ -n "${next_exec_prefix}" ] ; then
		exec_prefix=${arg}
		exec_prefixoption="-exec_prefix=${exec_prefix}"
		next_exec_prefix=
	elif [ -n "${next_site}" ] ; then site=${arg} ; next_site=
	elif [ -n "${next_srcdir}" ] ; then srcdir=${arg} ; next_srcdir=
	elif [ -n "${next_program_prefix}" ] ; then
		program_prefix=${arg}
		program_prefixoption="-program_prefix=${program_prefix}"
		next_program_prefix=
	elif [ -n "${next_target}" ] ; then
		next_target=
		case "${target_alias}" in
		"")
			target_alias="${arg}"
			;;
		*)
			echo '***' Can only configure for one target at a time.
			fatal=yes
			;;
		esac
	elif [ -n "${next_tmpdir}" ] ; then
		next_tmpdir=
		tmpdiroption="--tmpdir=${arg}"
		TMPDIR=${arg}

	else
		case ${arg} in
		-exec_prefix=* | --exec_prefix=* | --exec_prefi=* | --exec_pref=* | --exec_pre=* | --exec_pr=* | --exec_p=* | --exec_=* | --exec=* | --exe=* | --ex=* | --e=*)
			exec_prefix=`echo ${arg} | sed 's/^[-a-z_]*=//'`
			exec_prefixoption=${arg}
			;;
		-exec_prefix | --exec_prefix | --exec_prefi | --exec_pref | --exec_pre | --exec_pr | --exec_p | --exec_ | --exec | --exe | --ex | --e)
			next_exec_prefix=yes
			;;
		-gas | --g*)
			gas=yes
			;;
		-help | --he*)
			fatal=true
			;;
		-host=* | --host=* | --hos=* | --ho=*)
			case "${host_alias}" in
			"")
				host_alias="`echo ${arg} | sed 's/^[-a-z]*=//'`"
				;;
			*)
				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=*)
			prefix=`echo ${arg} | sed 's/^[-a-z]*=//'`
			prefixoption=${arg}
			;;
		-prefix | --prefix | --prefi | --pref | --pre)
			next_prefix=yes
			;;
		-program_prefix=* | --program_prefix=* | --program_prefi=* | --program_pref=* | --program_pre=* | --program_pr=* | --program_p=* | --program_=* | --program=* | --progra=* | --progr=* | --prog=* | --pro=*)
			program_prefix=`echo ${arg} | sed 's/^[-a-z]*=//'`
			program_prefixoption=${arg}
			;;
		-program_prefix | --program_prefix | --program_prefi | --program_pref | --program_pre | --program_pr | --program_p | --program_ | --program | --progra | --progr | --prog | --pro)
			next_program_prefix=yes
			;;
		-s | -silent | --silent | --silen | --sile | --sil)
			silent=true
			arguments=`echo ${arguments} | sed "s:${arg}::"`
			;;
		-site=* | --site=* | --sit=* | --si=*)
			site=`echo ${arg} | sed 's/^[-a-z]*=//'`
			;;
		-site | --site | --sit)
			next_site=yes
			;;
		-srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
			srcdir=`echo ${arg} | sed 's/^[-a-z]*=//'`
			;;
		-srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
			next_srcdir=yes
			;;
		-target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=*)
			case "${target_alias}" in
			"") target_alias="`echo ${arg} | sed 's/^[-a-z]*=//'`" ;;
			*)
				echo '***' Can only configure for one target at a time.
				fatal=yes
				;;
			esac
			;;
		-target | --target | --targe | --targ | --tar | --ta)
			next_target=yes
			;;
		-tmpdir=* | --tmpdir=* | --tmpdi=* | --tmpd=* | --tmp=* | --tm=*)
			tmpdiroption=${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 "${undefs}" in
			"")
				undefs="${arg}"
				;;
			*)
				echo '***' Can only configure for one host and one target at a time.
				fatal=yes
				;;
			esac
			;;
		esac
	fi
done

# process host and target
case "${fatal}" in
"")
#	# Complain if an arg is missing
#	if [ -z "${host_alias}" ] ; then
#		(echo ;
#		echo "configure: No HOST specified." ;
#		echo) 1>&2
#		fatal=true
#	fi

### 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 "${host_alias}" -a -n "${target_alias}" -a -n "${undefs}" ] ; then
		echo '***' Can only configure for one host and one target at a time.
		fatal=yes
	elif [ -z "${host_alias}" -a -z "${undefs}" ] ; then
		echo '***' You must tell me for which host you want to configure.
		fatal=yes
	else
		case "${host_alias}" in
		"") host_alias=${undefs} ;;
		*) ;;
		esac

		case "${target_alias}" in
		"")
			case "${undefs}" in
			"")	target_alias=${host_alias} ;;
			*)	target_alias=${undefs} ;;
			esac
			;;
		*) ;;
		esac
	fi
	;;
*) ;;
esac

if [ -n "${fatal}" -o "${host_alias}" = "help" ] ; then
	(echo "Usage: configure HOST" ;
	echo ;
	echo "Options: [defaults in brackets]" ;
	echo " -exec_prefix=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 " -program_prefix=FOO	install programs with FOO prepended to their names. [ \"\" ]" ;
	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.  [ TMPDIR = \"/tmp\" ]" ;
	echo ;
	echo "Where HOST and TARGET are something like \"vax\", \"sun3\", \"encore\", etc." ;
	) 1>&2

	if [ -r config.status ] ; then
		cat config.status
	fi

	exit 1
fi

configsub=`echo ${progname} | sed 's/configure$/config.sub/'`

if ${configsub} `echo ${host_alias} | sed -e 's/ .*//'` >/dev/null 2>&1 ; then
	true
else
	echo '***' cannot find config.sub.
	exit 1
fi

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"
			exit 1
		fi
	fi
	;;
*) ;;
esac


# default exec_prefix
case "${exec_prefix}" in
"") exec_prefix="${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
	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 &%*%$*# 14 char file names
tmpfile=${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

### do common part of configure.in

. ${tmpfile}.com

# some sanity checks on configure.in
case "${srctrigger}" in
"")
	echo '***' srctrigger not set in ${PWD}/configure.in.
	exit 1
	;;
*) ;;
esac

result=`${configsub} ${host_alias}`
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

result=`${configsub} ${target_alias}`
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 ${PWD}/${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
	exit 1
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.
configlinks="${links}"
while [ -n "${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

	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.

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.

# code is order so as to try to sed the smallest input files we know.

# 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.

# 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}

	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

# Conditionalize the makefile for this host.
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.
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.
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}
links = ${configlinks}
VPATH = ${srcdir}
EOF

# fixme: this shouldn't be in configure.
# Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
case "${host_alias}" in
"${target_alias}")
	tooldir="$(libdir)"
	echo "ALL=all.internal" >> ${Makefile}
	;;
*)
	echo "CROSS=-DCROSS_COMPILE" >> ${Makefile}
	echo "ALL=all.cross" >> ${Makefile}
	case "${program_prefix}" in
	"")	program_prefix=${target_alias}- ;;
	*)	;;
	esac

	tooldir="$(libdir)/${target_alias}"
	;;
esac

# reset prefix, exec_prefix, srcdir, SUBDIRS, NONSUBDIRS, remove any form
# feeds.
sed -e "s:^prefix[ 	]*=.*$:prefix = ${prefix}:" \
	-e "s:^exec_prefix[ 	]*=.*$:exec_prefix = ${exec_prefix}:" \
	-e "s:^srcdir[ 	]*=.*$:srcdir = ${srcdir}:" \
	-e "s:^SUBDIRS[ 	]*=.*$:SUBDIRS = ${configdirs}:" \
	-e "s:^NONSUBDIRS[ 	]*=.*$:NONSUBDIRS = ${noconfigdirs}:" \
	-e "s///" \
	-e "s:^program_prefix[ 	]*=.*$:program_prefix = ${program_prefix}:" \
	-e "s:^tooldir[ 	]*=.*$:tooldir = ${tooldir}:" \
	Makefile.tem >> ${Makefile}
# final copy now in ${Makefile}

rm Makefile.tem

if [ -n "${verbose}" -o -z "${silent}" ] ; 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

. ${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}
# ${PWD} was configured as follows:
${progname}" ${arguments}  "
# ${using}" > config.status
chmod a+x config.status

# 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
			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

### check for guested configure, otherwise fix possibly relative progname
			if [ -f ${newsrcdir}/configure ] ; then
				recprog=${newsrcdir}/configure
			else
				case "${progname}" in
				/*)	recprog=${progname} ;;
				*)	recprog=../${progname} ;;
				esac
			fi

### The recursion line is here.
			if ${recprog} -s ${host_alias} -target=${target_alias} \
				${verbose} ${prefixoption} ${tmpdiroption} ${exec_prefixoption} \
				${srcdiroption} ${program_prefixoption} ; then
				true
			else
				exit 1
			fi

			cd ${POPDIR}
		else
			case "${verbose}" in
			"") ;;
			*) echo Warning: source directory \"${srcdir}/${configdir}\" is missing. ;;
			esac
		fi
	done
fi

### clean up.

# trap cmd above handles this now:
#rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos

exit 0

#
# Local Variables:
# fill-column: 131
# End:
#

# end of configure