configure

早期freebsd实现

#!/bin/sh
# Configuration script for GNU CC
#   Copyright (C) 1988, 1990, 1991, 1992 Free Software Foundation, Inc.

#This file is part of GNU CC.

#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 2, 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.

#
# Shell script to create proper links to machine-dependent files in
# preparation for compiling gcc.
#
# Options: --srcdir=DIR		specifies directory where sources are.
# 	   --host=HOST		specifies host configuration.
#	   --target=TARGET	specifies target configuration.
#	   --build=TARGET	specifies configuration of machine you are
#				using to compile GCC.
#	   --prefix=DIR		specifies directory to install in.
#	   --exec-prefix=DIR	specifies directory to install executables in.
#	   --with-gnu-ld	arrange to work with GNU ld.
#	   --with-gnu-as	arrange to work with GAS.
#	   --with-stabs		arrange to use stabs instead of host debug format.
#	   --nfp		assume system has no FPU.
#
# If configure succeeds, it leaves its status in config.status.
# If configure fails after disturbing the status quo, 
# 	config.status is removed.
#

progname=$0

# Default --srcdir to the directory where the script is found, 
# if a directory was specified.
# The second sed call is to convert `.//configure' to `./configure'.
srcdir=`echo $0 | sed 's|//|/|' | sed 's|/[^/]*$||'`
if [ x$srcdir = x$0 ]
then
srcdir=
fi

host=

# Default prefix to /usr/local.
#prefix=/usr/local
prefix=/usr/libexec
# Default is to let the Makefile set exec_prefix from $(prefix)
#exec_prefix='$(prefix)'
exec_prefix='$(prefix)/gcc2'

remove=rm
hard_link=ln
symbolic_link='ln -s'
copy=cp

# Record all the arguments, to write them in config.status.
arguments=$*

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

target=
host=
build=

for arg in $*;
do
  case $next_arg in
  --srcdir)
    srcdir=$arg
    next_arg=
    ;;
  --host)
    host=$arg
    next_arg=
    ;;
  --target)
    target=$arg
    next_arg=
    ;;
  --build)
    build=$arg
    next_arg=
    ;;
  --prefix)
    prefix=$arg
    next_arg=
    ;;
  --exec-prefix)
    exec_prefix=$arg
    next_arg=
    ;;
  *)
    case $arg in
     -srcdir | --srcdir | --srcdi | --srcd | --src | --sr | --s)
	next_arg=--srcdir
	;;
     -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=* | --s=*)
	srcdir=`echo $arg | sed 's/-*s[a-z]*=//'`
	;;
     -host | --host | --hos | --ho | --h)
	next_arg=--host
	;;
     -host=* | --host=* | --hos=* | --ho=* | --h=*)
	host=`echo $arg | sed 's/-*h[a-z]*=//'`
	;; 
     -target | --target | --targe | --targ | --tar | --ta | --t)
	next_arg=--target
	;;
     -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
	target=`echo $arg | sed 's/-*t[a-z]*=//'`
	;; 
     -build | --build | --buil | --bui | --bu | --b)
	next_arg=--build
	;;
     -build=* | --build=* | --buil=* | --bui=* | --bu=* | --b=*)
	build=`echo $arg | sed 's/-*b[a-z]*=//'`
	;; 
     -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
	next_arg=--prefix
	;;
     -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
	prefix=`echo $arg | sed 's/-*p[a-z]*=//'`
	;;
     -exec-prefix | --exec-prefix | --exec-prefi | --exec-pref | --exec-pre \
	| --exec-pr | --exec-p | --exec- | --exec | --exe | --ex | --e)
	next_arg=--exec-prefix
	;;
     -exec-prefix=* | --exec-prefix=* | --exec-prefi=* | --exec-pref=* \
	| --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* | --exec=* \
	| --exe=* | --ex=* | --e=*)
	exec_prefix=`echo $arg | sed 's/-*e[-a-z]*=//'`
	;;
     -with-gnu-ld | --with-gnu-ld | --with-gnu-l)
	gnu_ld=yes
	;;
     -gas | --gas | --ga | --g | -with-gnu-as | --with-gnu-as | -with-gnu-a)
        gas=yes
	;;
     -nfp | --nfp | --nf | --n)
	nfp=yes
	;;
     -with-stabs | -with-stab | -with-sta | -with-st | -with-s \
	| --with-stabs | --with-stab | --with-sta | --with-st | --with-s \
	| -stabs | -stab | -sta | -st  \
	| --stabs | --stab | --sta | --st)
	stabs=yes
	;;
     -with-* | --with-*) ;; #ignored
     -x | --x) ;; # ignored
     -*)
	echo "Invalid option \`$arg'" 1>&2
	exit 1
	;;
     *)
# Allow configure HOST TARGET
	if [ x$host = x ]
	then
		host=$target
	fi
	target=$arg
	;;
    esac
  esac
done

# Find the source files, if location was not specified.
if [ x$srcdir = x ]
then
	srcdirdefaulted=1
	srcdir=.
	if [ ! -r tree.c ]
	then
		srcdir=..
	fi
fi

if [ ! -r ${srcdir}/tree.c ]
then
	if [ x$srcdirdefaulted = x ]
	then
	  echo "$progname: Can't find compiler sources in \`${srcdir}'" 1>&2
	else
	  echo "$progname: Can't find compiler sources in \`.' or \`..'" 1>&2
	fi
	exit 1
fi

if [ -r ${srcdir}/config.status ] && [ x$srcdir != x. ]
then
	echo "$progname: \`configure' has been run in \`${srcdir}'" 1>&2
	exit 1
fi

# Complain if an arg is missing
if [ x$target = x ]
then
	echo "No target specified." 1>&2

	echo "\
Usage: `basename $progname` [--host=HOST] [--build=BUILD]
       [--prefix=DIR] [--exec-pref=DIR]
       [--with-gnu-as] [--with-gnu-ld] [--with-stabs] [--nfp] TARGET" 1>&2
	echo "Where HOST, TARGET and BUILD are three-part configuration names " 1>&2
	if [ -r config.status ]
	then
		tail +2 config.status 1>&2
	fi
	exit 1
fi

# Default other arg
if [ x$host = x ]
then
	host=$target
fi
# If $build was not specified, use $host.
if [ x$build = x ]
then
	build=$host
fi

build_xm_file=
host_xm_file=
host_xmake_file=
host_broken_install=

# Validate the specs, and canonicalize them.
canon_build=`$srcdir/config.sub $build` || exit 1
canon_host=`$srcdir/config.sub $host` || exit 1
canon_target=`$srcdir/config.sub $target` || exit 1

# Decode the host machine, then the target machine.
# For the host machine, we save the xm_file variable as host_xm_file;
# then we decode the target machine and forget everything else
# that came from the host machine.
for machine in $canon_build $canon_host $canon_target; do

	cpu_type=
	xm_file=
	tm_file=
	out_file=
	xmake_file=
	tmake_file=
	header_files=
	# Set this to force installation and use of collect2.
	use_collect2=
	# Set this to override the default target model.
	target_cpu_default=
	# Set this to force use of install.sh.
	broken_install=
	# Set this to control which fixincludes program to use.
	fixincludes=fixincludes

	case $machine in
	# Support site-specific machine types.
	*local*)
		cpu_type=$machine
		xm_file=xm-$machine.h
		tm_file=$machine.h
		if [ -f $srcdir/config/x-$machine ] ; \
		then xmake_file=x-$machine; \
		else true; \
		fi
		if [ -f $srcdir/config/t-$machine ] ; \
		then tmake_file=t-$machine; \
		else true; \
		fi
		;;
	vax-*-bsd*)			# vaxen running BSD
		tm_file=vax.h
		use_collect2=yes
		;;
	vax-*-ultrix*)			# vaxen running ultrix
		tm_file=ultrix.h
		use_collect2=yes
		;;
	vax-*-vms*)			# vaxen running VMS
		xm_file=xm-vax-vms.h
		tm_file=vax-vms.h
		;;
	vax-*-sysv*)			# vaxen running system V
		xm_file=xm-vaxv.h
		tm_file=vaxv.h
		;;
# This hasn't been upgraded to GCC 2.
#	tahoe-harris-*)			# Harris tahoe, using COFF.
#		tm_file=harris.h
#		;;
#	tahoe-*-bsd*)			# tahoe running BSD
#		xm_file=xm-tahoe.h
#		tm_file=tahoe.h
#		;;
	i[34]86-*-osfrose*)		# 386 using OSF/rose
		tm_file=i386rose.h
		xmake_file=x-i386rose
		tmake_file=t-i386rose
		use_collect2=yes
		;;
	i[34]86-sequent-bsd*) 		# 80386 from Sequent
		xm_file=xm-i386.h
		use_collect2=yes
		if [ x$gas = xyes ]
		then
			tm_file=seq386gas.h
		else
			tm_file=seq386.h
		fi
		;;
	i[34]86-*-bsd*)
		xm_file=xm-i386.h
		tm_file=i386bsd.h
#		tmake_file=t-libc-ok
		use_collect2=yes
		;;
	i[34]86-*-mach*)
		xm_file=xm-i386.h
		tm_file=i386mach.h
#		tmake_file=t-libc-ok
		use_collect2=yes
		;;
	i[34]86-*-sco3.2v4*)	 	# 80386 running SCO 3.2v4 system
		xm_file=xm-i386sco.h
		tm_file=i386sco4.h
		xmake_file=x-i386s4
		tmake_file=t-i386sco
		fixincludes=fixinc.sco
		broken_install=yes
		;;
	i[34]86-*-sco*)		 	# 80386 running SCO system
		xm_file=xm-i386sco.h
		tm_file=i386sco.h
		xmake_file=x-i386sco
		tmake_file=t-i386sco
		broken_install=yes
		;;
	i[34]86-*-isc*)			# 80386 running ISC system
		xm_file=xm-i386isc.h
		xmake_file=x-i386isc
                if [ x$gas = xyes ]
		then
			tm_file=i386iscgas.h
			tmake_file=t-i386iscgas
		else
			tm_file=i386isc.h
			tmake_file=t-i386isc
		fi
		broken_install=yes
		;;
	i[34]86-ibm-aix*)		# IBM PS/2 running AIX
                if [ x$gas = xyes ]
		then
			tm_file=aix386.h
		else
			tm_file=aix386ng.h
			use_collect2=yes
		fi
		xm_file=xm-aix386.h
		xmake_file=x-aix386
		broken_install=yes
		;;
	i386-sun-sunos*)		# Sun i386 roadrunner
		xm_file=xm-sun386.h
		tm_file=i386sun.h
		use_collect2=yes
		;;
	i[34]86-*-linux*)               # Intel 80386's running Linux
		cpu_type=i386
		xm_file=xm-linux.h
		xmake_file=x-linux
		tm_file=i386linux.h
		broken_install=yes
		;;
	i486-ncr-sysv4*)		# NCR 3000 - i486 running system V.4
		cpu_type=i386
		xm_file=xm-i38v4.h
		xmake_file=x-ncr3000
		tm_file=i386v4.h
		tmake_file=t-svr4
		;;
	i[34]86-*-sysv4*)		# Intel 80386's running system V.4
		cpu_type=i386
		xm_file=xm-i38v4.h
		tm_file=i386v4.h
		tmake_file=t-svr4
		xmake_file=x-svr4
		;;
	i[34]86-*-sysv*)		# Intel 80386's running system V
		xm_file=xm-i386v.h
		xmake_file=x-i386v
		tmake_file=t-svr3
		if [ x$gas = xyes ]
		then
			if [ x$stabs = xyes ]
			then
				tm_file=i386gstabs.h
			else
				tm_file=i386gas.h
			fi
		else
			tm_file=i386v.h
		fi
		;;
	i860-*-mach*)
		xm_file=xm-i860.h
		tm_file=i860mach.h
		tmake_file=t-libc-ok
		;;
	i860-*-sysv3*)
		xm_file=xm-i86v3.h
		xmake_file=x-i860v3
		tm_file=i860v3.h
		tmake_file=t-svr3
		;;
	i860-*-sysv4*)
		xm_file=xm-i86v4.h
		xmake_file=x-i860v4
		tm_file=i860v4.h
		tmake_file=t-svr4
		;;
	i860-alliant-*)		# Alliant FX/2800
		xm_file=xm-fx2800.h
		xmake_file=x-fx2800
		tm_file=fx2800.h
		tmake_file=t-fx2800
		;;
	i860-*-bsd*)
		if [ x$gas = xyes ]
		then
			tm_file=i860bg.h
		else
			tm_file=i860b.h
		fi
		use_collect2=yes
		;;
	sparc-tti-*)
		tm_file=pbd.h
		xm_file=xm-pbd.h
		use_collect2=yes
		;;
	elxsi-elxsi-*)
		tm_file=elxsi.h
		xm_file=xm-elxsi.h
		use_collect2=yes
		;;
	sparc-*-sunos4*)
		tm_file=sparc.h
		use_collect2=yes
		;;
	sparc-*-sunos3*)
		tm_file=sun4o3.h
		use_collect2=yes
		;;
	sparc-*-sysv4*)
		xm_file=xm-spcv4.h
		tm_file=sparcv4.h
		tmake_file=t-svr4
		xmake_file=x-sparcv4
		;;
	sparc-*-solaris2* | sparc-*-sunos5*)
		xm_file=xm-spc-sol2.h
		tm_file=spc-sol2.h
		tmake_file=t-sol2
		xmake_file=x-sparcv4
		fixincludes=fixinc.svr4
		broken_install=yes
		;;
	m68k-cbm-sysv4*)		# Commodore variant of V.4.
		tm_file=amix.h
		xm_file=xm-amix.h
		xmake_file=x-amix
		tmake_file=t-svr4
		header_files=math-68881.h
		;;
	m68k-*-sysv4*)			# Motorola m68k's running system V.4
		tm_file=m68kv4.h
		xm_file=xm-m68kv.h
		tmake_file=t-svr4
		header_files=math-68881.h
		;;
	m68k-bull-sysv*)		# Bull DPX/2
		if [ x$gas = xyes ]
		then
			tm_file=dpx2g.h
		else
			echo dpx2 supported only with GAS 1>&2
			exit 1
			tm_file=dpx2.h
		fi
		xm_file=xm-m68kv.h
		xmake_file=x-dpx2
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68k-next-*)
		tm_file=next.h
		out_file=next.c
		xm_file=xm-next.h
		tmake_file=t-next
		xmake_file=x-next
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68k-sun-sunos3*)
		if [ x$nfp = xyes ]
		then
			tm_file=sun3n3.h
		else
			tm_file=sun3o3.h
		fi
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68k-sun-sunos*)		# For SunOS 4 (the default).
		if [ x$nfp = xyes ]
		then
			tm_file=sun3n.h
		else
			tm_file=sun3.h
		fi
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68k-sun-mach*)
		tm_file=sun3mach.h
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68k-tti-*)
		tm_file=pbb.h
		xm_file=xm-m68kv.h
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68k-hp-hpux*)	# HP 9000 series 300
		xm_file=xm-hp320.h
		if [ x$gas = xyes ]
		then
			xmake_file=x-hp320g
			tmake_file=t-hp320g
			tm_file=hp320g.h
		else
			xmake_file=x-hp320
			tm_file=hp320.h
		fi
		broken_install=yes
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68k-hp-bsd*)			# HP 9000/3xx running Berkeley Unix
		tm_file=hp3bsd.h
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68k-omron-bsd*)		# OMRON LUNA-I/LUNA-II running Berkeley Unix
		tm_file=luna68k.h
		use_collect2=yes
#		header_files=math-68881.h
		;;
	m68k-isi-bsd*)
		if [ x$nfp = xyes ]
		then
			tm_file=isi-nfp.h
		else
			tm_file=isi.h
		fi
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68k-sony-newsos3*)
	        xm_file=xm-m68k.h
		if [ x$gas = xyes ]
		then
			tm_file=news3gas.h
		else
			tm_file=news3.h
		fi
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68k-sony-bsd* | m68k-sony-newsos*)
	        xm_file=xm-m68k.h
		if [ x$gas = xyes ]
		then
			tm_file=newsgas.h
		else
			tm_file=news.h
		fi
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68k-altos-sysv*)		   # Altos 3068
		if [ x$gas = xyes ]
		then
		        xm_file=xm-altos3068.h
		        tm_file=altos3068.h
		else
			echo "The Altos is supported only with the GNU assembler" 1>&2
			exit 1
		fi
		header_files=math-68881.h
	        ;;
	m68k-motorola-sysv*)
		tm_file=mot3300.h
		xm_file=xm-mot3300.h
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68k-crds-unos*)
		xm_file=xm-crds.h
		xmake_file=x-crds
		tm_file=crds.h
		broken_install=yes
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68k-apollo-*)
		xmake_file=x-apollo68
		tm_file=apollo68.h
		use_collect2=yes
		header_files=math-68881.h
		;;
        m68k-plexus-sysv*)
	        cpu_type=m68k
		tm_file=plexus.h
		use_collect2=yes
		xm_file=xm-plexus.h
		header_files=math-68881.h
		;;
	m68k-ncr-sysv*)			# NCR Tower 32 SVR3
		tm_file=tower-as.h
		xm_file=xm-tower.h
		xmake_file=x-tower
		tmake_file=t-svr3
		header_files=math-68881.h
		;;
	m68k-*-sysv3*)			# Motorola m68k's running system V.3
		tm_file=m68k.h
		xm_file=xm-m68kv.h
		xmake_file=x-m68kv
		tmake_file=t-svr3
		header_files=math-68881.h
		;;
	m68000-sun-sunos3*)
		cpu_type=m68k
		tm_file=sun2.h
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68000-sun-sunos4*)
		cpu_type=m68k
		tm_file=sun2o4.h
		use_collect2=yes
		header_files=math-68881.h
		;;
	m68000-hp-hpux*)		# HP 9000 series 300
		cpu_type=m68k
		xm_file=xm-hp320.h
		if [ x$gas = xyes ]
		then
			xmake_file=x-hp320g