configure

早期freebsd实现

#!/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:
# [e-mail]

# 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=$*
configdirs=
exec_prefix=
exec_prefixoption=
fatal=
floating_point=default
gas=default
host_alias=
host_makefile_frag=
moveifchange=
next_host=
next_prefix=
next_site=
next_srcdir=
next_target=
next_tmpdir=
norecursion=
prefix=/usr/local
progname=
program_prefix=
program_prefixoption=
program_suffix=
program_suffixoption=
program_transform_name=
program_transform_nameoption=
redirect=">/dev/null"
removing=
site=
site_makefile_frag=
site_option=
srcdir=
srctrigger=
subdirs=
target_alias=
target_makefile_frag=
undefinedargs=
version="$Revision: 1.136 $"
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.
##

progname=$0
# if PWD already has a value, it is probably wrong.
if [ -n "$PWD" ]; then PWD=`pwd`; fi

case "${progname}" in
/*) ;;
*/*) ;;
*)
	PATH=$PATH:${PWD=`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=${arg} ; site_option=-site=${site} ; next_site=
	# remove any possible trailing slash from srcdir.  See note below.
	elif [ -n "${next_srcdir}" ] ; then srcdir=`echo ${arg} | sed -e 's:/$::'` ; next_srcdir=
	elif [ -n "${next_program_prefix}" ] ; then
		program_prefix=${arg}
		program_prefixoption="-program_prefix=${program_prefix}"
		next_program_prefix=
	elif [ -n "${next_program_suffix}" ] ; then
		program_suffix=${arg}
		program_suffixoption="-program_suffix=${program_suffix}"
		next_program_suffix=
	elif [ -n "${next_program_transform_name}" ] ; then
		# Double any backslashes or dollar signs in the argument
		program_transform_name="${program_transform_name} -e `echo ${arg} | sed -e 's/\\\\/\\\\\\\\/g' -e 's/\\\$/$$/g'`"
		program_transform_nameoption="${program_transform_nameoption} -program_transform_name='${arg}'"
		next_program_transform_name=
	elif [ -n "${next_target}" ] ; then
		next_target=
		case "${target_alias}" in
		"")
			target_alias="${arg}"
			;;
		*)
			echo '***' Can only configure for one target at a time.  1>&2
			fatal=yes
			;;
		esac
	elif [ -n "${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=* | --exec-prefix=* | --exec-prefi=* | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* )
			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 | -exec-prefix | --exec-prefix | --exec-prefi | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec-)
			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.  1>&2
				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
			;;
		-rm | --rm) removing=${arg} ;;
		-program_prefix=* | --program_prefix=* | --program_prefi=* | --program_pref=* | --program_pre=* | --program_pr=* | --program_p=* | -program-prefix=* | --program-prefix=* | --program-prefi=* | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
			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-prefix | --program-prefix | --program-prefi | --program-pref | --program-pre | --program-pr | --program-p)
			next_program_prefix=yes
			;;
		-program_suffix=* | --program_suffix=* | --program_suffi=* | --program_suff=* | --program_suf=* | --program_su=* | --program_s=* | -program-suffix=* | --program-suffix=* | --program-suffi=* | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
			program_suffix=`echo ${arg} | sed 's/^[-a-z_]*=//'`
			program_suffixoption=${arg}
			;;
		-program_suffix | --program_suffix | --program_suffi | --program_suff | --program_suf | --program_su | --program_s |-program-suffix | --program-suffix | --program-suffi | --program-suff | --program-suf | --program-su | --program-s)
			next_program_suffix=yes
			;;
		-program_transform_name=* | --program_transform_name=* | --program_transform_nam=* | --program_transform_na=* | --program_transform_n=* | --program_transform_=* | --program_transform=* | --program_transfor=* | --program_transfo=* | --program_transf=* | --program_trans=* | --program_tran=* | --program_tra=* | --program_tr=* | --program_t=* | -program-transform-name=* | --program-transform-name=* | --program-transform-nam=* | --program-transform-na=* | --program-transform-n=* | --program-transform-=* | --program-transform=* | --program-transfor=* | --program-transfo=* | --program-transf=* | --program-trans=* | --program-tran=* | --program-tra=* | --program-tr=* | --program-t=*)
			# Double any \ or $ in the argument
			program_transform_name="${program_transform_name} -e `echo ${arg} | sed -e 's/^[-a-z_]*=//' -e 's/\\\\/\\\\\\\\/g' -e 's/\\\$/$$/g'`"
			program_transform_nameoption="${program_transform_nameoption} -program_transform_name='`echo ${arg} | sed 's/^[-a-z_]*=//'`'"
			;;
		-program_transform_name | --program_transform_name | --program_transform_nam | --program_transform_na | --program_transform_n | --program_transform_ | --program_transform | --program_transfor | --program_transfo | --program_transf | --program_trans | --program_tran | --program_tra | --program_tr | --program_t | -program-transform-name | --program-transform-name | --program-transform-nam | --program-transform-na | --program-transform-n | --program-transform- | --program-transform | --program-transfor | --program-transfo | --program-transf | --program-trans | --program-tran | --program-tra | --program-tr | --program-t)
			next_program_transform_name=yes
			;;
		-site=* | --site=* | --sit=* | --si=*)
			site_option=${arg}
			site=`echo ${arg} | sed 's/^[-a-z]*=//'`
			;;
		-site | --site | --sit)
			next_site=yes
			;;
		# 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=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
			srcdir=`echo ${arg} | sed 's/^[-a-z]*=//' | sed -e 's:/$::'`
			;;
		-srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
			next_srcdir=yes
			;;
		-target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=*)
			case "${target_alias}" in
			"") target_alias="`echo ${arg} | sed 's/^[-a-z]*=//'`" ;;
			*)
				echo '***' Can only configure for one target at a time.  1>&2
				fatal=yes
				;;
			esac
			;;
		-target | --target | --targe | --targ | --tar | --ta)
			next_target=yes
			;;
		-tmpdir=* | --tmpdir=* | --tmpdi=* | --tmpd=* | --tmp=* | --tm=*)
			tmpdiroption=${arg}
			TMPDIR=`echo ${arg} | sed 's/^[-a-z]*=//'`
			;;
		-tmpdir | --tmpdir | --tmpdi | --tmpd | --tmp | --tm)
			next_tmpdir=yes
			;;
		-v | -verbose | --v)
			redirect=
			verbose=-v
			;;
		-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.  1>&2
				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 "${undefs}" ] ; then
		echo '***' Can only configure for one host and one target at a time.  1>&2
		fatal=yes
	elif [ -z "${host_alias}" -a -z "${undefs}" ] ; then
		echo '***' You must tell me for which host you want to configure.  1>&2
		fatal=yes
	else
		case "${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 " -program-suffix=FOO	install programs with FOO appended to their names. [ \"\" ]" ;
	echo " -program-transform-name=FOO	install programs with names transformed by sed pattern FOO. [ \"\" ]" ;
	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/'`
moveifchange=`echo ${progname} | sed 's/configure$/move-if-change/'`

# this is a hack.  sun4 must always be a valid host alias or this will fail.
if ${configsub} sun4 >/dev/null 2>&1 ; then
	true
else
	echo '***' cannot find config.sub.  1>&2
	exit 1
fi

touch config.junk
if ${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
	;;
*) ;;
esac

### warn about some conflicting configurations.

case "${srcdir}" in
".") ;;
*)
	if [ -f ${srcdir}/config.status ] ; then
		echo '***' Cannot configure here in \"${PWD=`pwd`}\" when \"${srcdir}\" is currently configured. 1>&2
		exit 1
	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