[thirdparty/gcc.git] / gcc / configure.in

# configure.in for GNU CC
# Process this file with autoconf to generate a configuration script.

# Copyright (C) 1997, 1998, 1999, 2000 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, 59 Temple Place - Suite 330,
#Boston, MA 02111-1307, USA.

# Initialization and defaults
AC_PREREQ(2.13)
AC_INIT(tree.c)
AC_CONFIG_HEADER(auto-host.h:config.in)

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

# Check for bogus environment variables.
# Test if LIBRARY_PATH contains the notation for the current directory
# since this would lead to problems installing/building glibc.
# LIBRARY_PATH contains the current directory if one of the following
# is true:
# - one of the terminals (":" and ";") is the first or last sign
# - two terminals occur directly after each other
# - the path contains an element with a dot in it
AC_MSG_CHECKING(LIBRARY_PATH variable)
changequote(,)dnl
case ${LIBRARY_PATH} in
  [:\;]* | *[:\;] | *[:\;][:\;]* |  *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
    library_path_setting="contains current directory"
    ;;
  *)
    library_path_setting="ok"
    ;;
esac
changequote([,])dnl
AC_MSG_RESULT($library_path_setting)
if test "$library_path_setting" != "ok"; then
AC_MSG_ERROR([
*** LIBRARY_PATH shouldn't contain the current directory when
*** building gcc. Please change the environment variable
*** and run configure again.])
fi

# Test if GCC_EXEC_PREFIX contains the notation for the current directory
# since this would lead to problems installing/building glibc.
# GCC_EXEC_PREFIX contains the current directory if one of the following
# is true:
# - one of the terminals (":" and ";") is the first or last sign
# - two terminals occur directly after each other
# - the path contains an element with a dot in it
AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
changequote(,)dnl
case ${GCC_EXEC_PREFIX} in
  [:\;]* | *[:\;] | *[:\;][:\;]* |  *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
    gcc_exec_prefix_setting="contains current directory"
    ;;
  *)
    gcc_exec_prefix_setting="ok"
    ;;
esac
changequote([,])dnl
AC_MSG_RESULT($gcc_exec_prefix_setting)
if test "$gcc_exec_prefix_setting" != "ok"; then
AC_MSG_ERROR([
*** GCC_EXEC_PREFIX shouldn't contain the current directory when
*** building gcc. Please change the environment variable
*** and run configure again.])
fi

# Check for additional parameters

# With GNU ld
AC_ARG_WITH(gnu-ld,
[  --with-gnu-ld           arrange to work with GNU ld.],
gnu_ld_flag="$with_gnu_ld",
gnu_ld_flag=no)

# With pre-defined ld
AC_ARG_WITH(ld,
[  --with-ld               arrange to use the specified ld (full pathname).],
DEFAULT_LINKER="$with_ld")
if test x"${DEFAULT_LINKER+set}" = x"set"; then
  if test ! -x "$DEFAULT_LINKER"; then
    AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
  elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
    gnu_ld_flag=yes
  fi
  AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER")
fi

# With GNU as
AC_ARG_WITH(gnu-as,
[  --with-gnu-as           arrange to work with GNU as.],
gas_flag="$with_gnu_as",
gas_flag=no)

AC_ARG_WITH(as,
[  --with-as               arrange to use the specified as (full pathname).],
DEFAULT_ASSEMBLER="$with_as")
if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
  if test ! -x "$DEFAULT_ASSEMBLER"; then
    AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
  elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
    gas_flag=yes
  fi
  AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER")
fi

# With stabs
AC_ARG_WITH(stabs,
[  --with-stabs            arrange to use stabs instead of host debug format.],
stabs="$with_stabs",
stabs=no)

# With ELF
AC_ARG_WITH(elf,
[  --with-elf              arrange to use ELF instead of host debug format.],
elf="$with_elf",
elf=no)

# Specify the local prefix
local_prefix=
AC_ARG_WITH(local-prefix,
[  --with-local-prefix=DIR specifies directory to put local include.],
[case "${withval}" in
yes)	AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
no)	;;
*)	local_prefix=$with_local_prefix ;;
esac])

# Default local prefix if it is empty
if test x$local_prefix = x; then
	local_prefix=/usr/local
fi

# Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
# passed in by the toplevel make and thus we'd get different behavior
# depending on where we built the sources.
gcc_gxx_include_dir=
# Specify the g++ header file directory
AC_ARG_WITH(gxx-include-dir,
[  --with-gxx-include-dir=DIR
                          specifies directory to put g++ header files.],
[case "${withval}" in
yes)	AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
no)	;;
*)	gcc_gxx_include_dir=$with_gxx_include_dir ;;
esac])

if test x${gcc_gxx_include_dir} = x; then
  if test x${enable_version_specific_runtime_libs} = xyes; then
    gcc_gxx_include_dir='${libsubdir}/include/g++'
  else
    topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
changequote(<<, >>)dnl
    gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/g++"-${libstdcxx_interface}
changequote([, ])dnl
  fi
fi

# Enable expensive internal checks
AC_ARG_ENABLE(checking,
[  --enable-checking[=LIST]
			  enable expensive run-time checks.  With LIST,
			  enable only specific categories of checks.
			  Categories are: misc,tree,rtl,gc,gcac; default
			  is misc,tree,rtl],
[case "${enableval}" in
yes)	AC_DEFINE(ENABLE_CHECKING)
	AC_DEFINE(ENABLE_TREE_CHECKING)
	AC_DEFINE(ENABLE_RTL_CHECKING)	;;
no)	;;
*)	IFS="${IFS= 	}"; ac_save_IFS="$IFS" IFS="$IFS,"
	set fnord $enableval; shift
	IFS="$ac_save_IFS"
	for check
	do
		case $check in
		misc)	AC_DEFINE(ENABLE_CHECKING)		;;
		tree)	AC_DEFINE(ENABLE_TREE_CHECKING)		;;
		rtl)	AC_DEFINE(ENABLE_RTL_CHECKING)		;;
		gc)	AC_DEFINE(ENABLE_GC_CHECKING)		;;
		gcac)	AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT)	;;
		*)	AC_MSG_ERROR(unknown check category $check) ;;
		esac
	done
	;;
esac])

AC_ARG_ENABLE(cpp,
[  --disable-cpp           don't provide a user-visible C preprocessor.],
[], [enable_cpp=yes])

AC_ARG_WITH(cpp_install_dir,
[  --with-cpp-install-dir=DIR
                          install the user visible C preprocessor in DIR
                          (relative to PREFIX) as well as PREFIX/bin.],
[if test x$withval = xyes; then
  AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
elif test x$withval != xno; then
  cpp_install_dir=$withval
fi])

# Use cpplib+cppmain for the preprocessor, but don't link it with the compiler.
cpp_main=cppmain
AC_ARG_ENABLE(cpplib,
[  --disable-cpplib        use the old isolated C preprocessor.],
if test x$enable_cpplib = xno; then
  cpp_main=cccp
fi)

# Link cpplib into the compiler proper, for C/C++/ObjC.
AC_ARG_ENABLE(c-cpplib,
[  --enable-c-cpplib       link cpplib directly into C and C++ compilers
                          (EXPERIMENTAL) (implies --enable-cpplib).],
if test x$enable_c_cpplib != xno; then
  extra_c_objs="${extra_c_objs} libcpp.a"
  extra_cxx_objs="${extra_cxx_objs} ../libcpp.a"
  extra_c_flags="${extra_c_flags} -DUSE_CPPLIB=1"
  cpp_main=cppmain
fi)

# Enable Multibyte Characters for C/C++
AC_ARG_ENABLE(c-mbchar,
[  --enable-c-mbchar       Enable multibyte characters for C and C++.],
if test x$enable_c_mbchar != xno; then
  extra_c_flags="${extra_c_flags} -DMULTIBYTE_CHARS=1"
fi)
  
# Enable threads
# Pass with no value to take the default
# Pass with a value to specify a thread package
AC_ARG_ENABLE(threads,
[  --enable-threads        enable thread usage for target GCC.
  --enable-threads=LIB    use LIB thread package for target GCC.],
if test x$enable_threads = xno; then
	enable_threads=''
fi,
enable_threads='')

enable_threads_flag=$enable_threads
# Check if a valid thread package
case x${enable_threads_flag} in
	x | xno)
		# No threads
		target_thread_file='single'
		;;
	xyes)
		# default
		target_thread_file=''
		;;
	xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
	xsolaris | xwin32 | xdce | xvxworks)
		target_thread_file=$enable_threads_flag
		;;
	*)
		echo "$enable_threads is an unknown thread package" 1>&2
		exit 1
		;;
esac

AC_ARG_ENABLE(objc-gc,
[  --enable-objc-gc	  enable the use of Boehm's garbage collector with
			  the GNU Objective-C runtime.],
if test x$enable_objc_gc = xno; then
	objc_boehm_gc=''
else
	objc_boehm_gc=1
fi,
objc_boehm_gc='')

AC_ARG_WITH(dwarf2,
[  --with-dwarf2	  force the default debug format to be DWARF2.],
dwarf2="$with_dwarf2",
dwarf2=no)

# Determine the host, build, and target systems
AC_CANONICAL_SYSTEM

# Find the native compiler
AC_PROG_CC
AC_GCC_C_LONG_DOUBLE

# If the native compiler is GCC, we can enable warnings even in stage1.  
# That's useful for people building cross-compilers, or just running a
# quick `make'.
if test "x$GCC" = "xyes"; then 
  stage1_warn_cflags='$(WARN_CFLAGS)'
else
  stage1_warn_cflags=""
fi
AC_SUBST(stage1_warn_cflags)

AC_PROG_MAKE_SET

AC_MSG_CHECKING([whether a default assembler was specified])
if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
    if test x"$gas_flag" = x"no"; then
    	AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
    else
	AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
    fi
else
    AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING([whether a default linker was specified])
if test x"${DEFAULT_LINKER+set}" = x"set"; then
    if test x"$gnu_ld_flag" = x"no"; then
	AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
    else
	AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
    fi
else
    AC_MSG_RESULT(no)
fi

# Find some useful tools
AC_PROG_AWK
AC_PROG_LEX
GCC_PROG_LN
GCC_PROG_LN_S
GCC_C_VOLATILE
AC_PROG_RANLIB
AC_PROG_YACC
EGCS_PROG_INSTALL

AC_HEADER_STDC
AC_HEADER_TIME
GCC_HEADER_STRING
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
		 fcntl.h unistd.h stab.h sys/file.h sys/time.h \
		 sys/resource.h sys/param.h sys/times.h sys/stat.h \
		 direct.h malloc.h)

# Check for thread headers.
AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])

# See if GNAT has been installed
AC_CHECK_PROG(gnat, gnatbind, yes, no)

# See if the stage1 system preprocessor understands the ANSI C
# preprocessor stringification operator.
AC_C_STRINGIZE

# Use <inttypes.h> only if it exists,
# doesn't clash with <sys/types.h>, and declares intmax_t.
AC_MSG_CHECKING(for inttypes.h)
AC_CACHE_VAL(gcc_cv_header_inttypes_h,
[AC_TRY_COMPILE(
  [#include <sys/types.h>
#include <inttypes.h>],
  [intmax_t i = -1;],
  [gcc_cv_header_inttypes_h=yes],
  gcc_cv_header_inttypes_h=no)])
AC_MSG_RESULT($gcc_cv_header_inttypes_h)
if test $gcc_cv_header_inttypes_h = yes; then
  AC_DEFINE(HAVE_INTTYPES_H)
fi

AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy bzero bcmp \
	index rindex strchr strrchr kill getrlimit setrlimit atoll atoq \
	sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
	fputs_unlocked getrusage valloc)

# Make sure wchar_t is available
#AC_CHECK_TYPE(wchar_t, unsigned int)

GCC_FUNC_VFPRINTF_DOPRNT
GCC_FUNC_PRINTF_PTR

case "${host}" in
*-*-uwin*)
  # Under some versions of uwin, vfork is notoriously buggy and the test 
  # can hang configure; on other versions, vfork exists just as a stub.
  # FIXME: This should be removed once vfork in uwin's runtime is fixed.
  ac_cv_func_vfork_works=no
  ;;
esac
AC_FUNC_VFORK
AC_FUNC_MMAP_ANYWHERE

GCC_NEED_DECLARATIONS(bcopy bzero bcmp \
	index rindex getenv atol sbrk abort atof getcwd getwd \
	strsignal putc_unlocked fputs_unlocked strstr environ)

GCC_NEED_DECLARATIONS(malloc realloc calloc free, [
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
])

GCC_NEED_DECLARATIONS(getrlimit setrlimit getrusage, [
#include <sys/types.h>
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
])

# mkdir takes a single argument on some systems. 
GCC_FUNC_MKDIR_TAKES_ONE_ARG

# File extensions
manext='.1'
objext='.o'
AC_SUBST(manext)
AC_SUBST(objext)

build_xm_file=
build_xm_defines=
build_install_headers_dir=install-headers-tar
build_exeext=
host_xm_file=
host_xm_defines=
host_xmake_file=
host_truncate_target=
host_exeext=

# 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 $build $host $target; do

	out_file=
	xmake_file=
	tmake_file=
	extra_headers=
	extra_passes=
	extra_parts=
	extra_programs=
	extra_objs=
	extra_host_objs=
	extra_gcc_objs=
	xm_defines=
	float_format=
	# 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 control how the header file directory is installed.
	install_headers_dir=install-headers-tar
	# Set this to a non-empty list of args to pass to cpp if the target
	# wants its .md file passed through cpp.
	md_cppflags=
	# Set this if directory names should be truncated to 14 characters.
	truncate_target=
	# Set this if gdb needs a dir command with `dirname $out_file`
	gdb_needs_out_file_path=
	# Set this if the build machine requires executables to have a
	# file name suffix.
	exeext=
	# Set this to control which thread package will be used.
	thread_file=
	# Reinitialize these from the flag values every loop pass, since some
	# configure entries modify them.
	gas="$gas_flag"
	gnu_ld="$gnu_ld_flag"
	enable_threads=$enable_threads_flag

	# Set default cpu_type, tm_file, tm_p_file and xm_file so it can be
	# updated in each machine entry.
	tm_p_file=
	cpu_type=`echo $machine | sed 's/-.*$//'`
	case $machine in
	alpha*-*-*)
		cpu_type=alpha
		;;
	arm*-*-*)
		cpu_type=arm
		;;
	c*-convex-*)
		cpu_type=convex
		;;
changequote(,)dnl
	i[34567]86-*-*)
changequote([,])dnl
		cpu_type=i386
		;;
	hppa*-*-*)
		cpu_type=pa
		;;
	m68000-*-*)
		cpu_type=m68k
		;;
	mips*-*-*)
		cpu_type=mips
		;;
 	pj*-*-*)
 		cpu_type=pj
 		;;
	powerpc*-*-*)
		cpu_type=rs6000
		;;
	pyramid-*-*)
		cpu_type=pyr
		;;
	sparc*-*-*)
		cpu_type=sparc
		;;
	esac

	tm_file=${cpu_type}/${cpu_type}.h
	xm_file=${cpu_type}/xm-${cpu_type}.h
	if test -f ${srcdir}/config/${cpu_type}/${cpu_type}-protos.h;
	then
		tm_p_file=${cpu_type}/${cpu_type}-protos.h;
	fi
	# On a.out targets, we need to use collect2.
	case $machine in
	*-*-*aout*)
		use_collect2=yes
		;;
	esac	

	# Common parts for linux-gnu and openbsd systems
	case $machine in
	*-*-linux-gnu*)
		xm_defines="HAVE_ATEXIT POSIX BSTRING"
		;;
	*-*-openbsd*)
		tm_file=${cpu_type}/openbsd.h
		tmake_file="t-libc-ok t-openbsd"
		# avoid surprises, always provide an xm-openbsd file 
		xm_file=${cpu_type}/xm-openbsd.h
		# don't depend on processor x-fragments as well
		xmake_file=none
 		if test x$enable_threads = xyes; then
 			thread_file='posix'
			tmake_file="${tmake_file} t-openbsd-thread"
		fi
		;;
	esac

	case $machine in
	# Support site-specific machine types.
	*local*)
		cpu_type=`echo $machine | sed -e 's/-.*//'`
		rest=`echo $machine | sed -e "s/$cpu_type-//"`
		xm_file=${cpu_type}/xm-$rest.h
		tm_file=${cpu_type}/$rest.h
		if test -f $srcdir/config/${cpu_type}/x-$rest; \
		then xmake_file=${cpu_type}/x-$rest; \
		else true; \
		fi
		if test -f $srcdir/config/${cpu_type}/t-$rest; \
		then tmake_file=${cpu_type}/t-$rest; \
		else true; \
		fi
		;;
	1750a-*-*)
		;;
	a29k-*-bsd* | a29k-*-sym1*)
		tm_file="${tm_file} a29k/unix.h"
		xm_defines=USG
		xmake_file=a29k/x-unix
		use_collect2=yes
		;;
	a29k-*-udi | a29k-*-coff)
		tm_file="${tm_file} dbxcoff.h a29k/udi.h"
		tmake_file=a29k/t-a29kbare
		;;
	a29k-wrs-vxworks*)
		tm_file="${tm_file} dbxcoff.h a29k/udi.h a29k/vx29k.h"
		tmake_file=a29k/t-vx29k
		extra_parts="crtbegin.o crtend.o"
		thread_file='vxworks'
		;;
	a29k-*-*)			# Default a29k environment.
		use_collect2=yes
		;;
	alpha-*-interix)
		tm_file="${tm_file} alpha/alpha32.h interix.h alpha/alpha-interix.h"

		# GAS + IEEE_CONFORMANT+IEEE (no inexact);
		#target_cpu_default="MASK_GAS|MASK_IEEE_CONFORMANT|MASK_IEEE"

		# GAS + IEEE_CONFORMANT
		target_cpu_default="MASK_GAS|MASK_IEEE_CONFORMANT"

		xm_file="alpha/xm-alpha-interix.h xm-interix.h"
		xmake_file="x-interix alpha/t-pe"
		tmake_file="alpha/t-interix alpha/t-ieee"
 		if test x$enable_threads = xyes ; then
			thread_file='posix'
		fi
		if test x$stabs = xyes ; then
			tm_file="${tm_file} dbxcoff.h"
		fi
		#prefix='$$INTERIX_ROOT'/usr/contrib
		#local_prefix='$$INTERIX_ROOT'/usr/contrib
		;;
	alpha*-*-linux-gnuecoff*)
		tm_file="${tm_file} alpha/linux-ecoff.h alpha/linux.h"
		target_cpu_default="MASK_GAS"
		tmake_file="alpha/t-ieee"
		gas=no
		xmake_file=none
		gas=yes gnu_ld=yes
		;;
	alpha*-*-linux-gnulibc1*)
		tm_file="${tm_file} alpha/elf.h alpha/linux.h alpha/linux-elf.h"
		target_cpu_default="MASK_GAS"
		tmake_file="t-linux t-linux-gnulibc1 alpha/t-linux alpha/t-crtbe alpha/t-ieee"
		extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
		xmake_file=none
		gas=yes gnu_ld=yes
 		if test x$enable_threads = xyes; then
 			thread_file='posix'
 		fi
		;;
	alpha*-*-linux-gnu*)
		tm_file="${tm_file} alpha/elf.h alpha/linux.h alpha/linux-elf.h"
		target_cpu_default="MASK_GAS"
		tmake_file="t-linux alpha/t-linux alpha/t-crtbe alpha/t-ieee"
		extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
		xmake_file=none
		gas=yes gnu_ld=yes
 		if test x$enable_threads = xyes; then
 			thread_file='posix'
 		fi
		;;
	alpha*-*-netbsd*)
		tm_file="${tm_file} alpha/elf.h alpha/netbsd.h alpha/netbsd-elf.h"
		target_cpu_default="MASK_GAS"
		tmake_file="alpha/t-crtbe alpha/t-ieee"
		extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
		xmake_file=none
		gas=yes gnu_ld=yes
		;;

	alpha*-*-openbsd*)
		# default x-alpha is only appropriate for dec-osf.
		target_cpu_default="MASK_GAS"
		tmake_file="alpha/t-ieee"
		;;
		
	alpha*-dec-osf*)
		if test x$stabs = xyes
		then
			tm_file="${tm_file} dbx.h"
		fi
		if test x$gas != xyes
		then
			extra_passes="mips-tfile mips-tdump"
		fi
		use_collect2=yes
		tmake_file="alpha/t-ieee"
		case $machine in
		  *-*-osf1*)
		    tm_file="${tm_file} alpha/osf.h alpha/osf12.h alpha/osf2or3.h"
		    ;;
changequote(,)dnl
		  *-*-osf[23]*)
changequote([,])dnl
		    tm_file="${tm_file} alpha/osf.h alpha/osf2or3.h"
		    ;;
		  *-*-osf4*)
		    tm_file="${tm_file} alpha/osf.h"
		    # Some versions of OSF4 (specifically X4.0-9 296.7) have
		    # a broken tar, so we use cpio instead.
		    install_headers_dir=install-headers-cpio
		    ;;
		  *-*-osf5*)
		    tm_file="${tm_file} alpha/osf.h alpha/osf5.h"
		    ;;
		esac
		case $machine in
changequote(,)dnl
		  *-*-osf4.0[b-z] | *-*-osf4.[1-9]* | *-*-osf5*)
changequote([,])dnl
		    target_cpu_default=MASK_SUPPORT_ARCH
		    ;;
		esac
		;;
 	alpha*-*-vxworks*)
		tm_file="${tm_file} dbx.h alpha/vxworks.h"
		tmake_file="alpha/t-ieee"
		if [ x$gas != xyes ]
		then
			extra_passes="mips-tfile mips-tdump"
		fi
		use_collect2=yes
		thread_file='vxworks'
		;;
	alpha*-*-winnt*)
	 	tm_file="${tm_file} alpha/alpha32.h alpha/win-nt.h winnt/win-nt.h"
		xm_file="${xm_file} config/winnt/xm-winnt.h alpha/xm-winnt.h"
		tmake_file="t-libc-ok alpha/t-ieee"
		xmake_file=winnt/x-winnt
		extra_host_objs=oldnames.o
		extra_gcc_objs="spawnv.o oldnames.o"
		if test x$gnu_ld != xyes
		then
			extra_programs=ld.exe
		fi
 		if test x$enable_threads = xyes; then
			thread_file='win32'
		fi
		;;
	alpha*-dec-vms*)
		tm_file=alpha/vms.h
		xm_file="${xm_file} alpha/xm-vms.h"
		tmake_file="alpha/t-vms alpha/t-ieee"
		;;
	arc-*-elf*)
		extra_parts="crtinit.o crtfini.o"
		;;
	arm-*-coff* | armel-*-coff*)
		tm_file=arm/coff.h
		tmake_file=arm/t-bare
		;;
	arm-*-vxworks*)
		tm_file=arm/vxarm.h
		tmake_file=arm/t-bare
		thread_file='vxworks'
		;;
changequote(,)dnl
	arm-*-riscix1.[01]*)		# Acorn RISC machine (early versions)
changequote([,])dnl
		tm_file=arm/riscix1-1.h
		use_collect2=yes
		;;
	arm-*-riscix*)			# Acorn RISC machine
		if test x$gas = xyes
		then
		    tm_file=arm/rix-gas.h
		else
		    tm_file=arm/riscix.h
		fi
		xmake_file=arm/x-riscix
		tmake_file=arm/t-riscix
		use_collect2=yes
		;;
	arm-semi-aout | armel-semi-aout)
		tm_file=arm/semi.h
		tmake_file=arm/t-semi
		;;
	arm-semi-aof | armel-semi-aof)
		tm_file=arm/semiaof.h
		tmake_file=arm/t-semiaof
		;;
	arm*-*-netbsd*)
		tm_file=arm/netbsd.h
		tmake_file="t-netbsd arm/t-netbsd"
		use_collect2=yes
		;;
	arm*-*-linux-gnuaout*)		# ARM GNU/Linux with a.out
		cpu_type=arm
		xmake_file=x-linux
		tm_file=arm/linux-aout.h
		tmake_file=arm/t-linux
		gnu_ld=yes
		;;
	arm*-*-linux-gnuoldld*)		# ARM GNU/Linux with old ELF linker
		xm_file=arm/xm-linux.h
		xmake_file=x-linux
		tm_file="arm/linux-oldld.h arm/linux-elf.h"
		case $machine in
		armv2*-*-*)
			tm_file="arm/linux-elf26.h $tm_file"
			;;
		esac
		tmake_file="t-linux arm/t-linux"
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		gnu_ld=yes
		case x${enable_threads} in
		x | xyes | xpthreads | xposix)
			thread_file='posix'
			;;
		esac
		;;
	arm*-*-linux-gnu*)		# ARM GNU/Linux with ELF
		xm_file=arm/xm-linux.h
		xmake_file=x-linux
		tm_file="arm/linux-elf.h"
		case $machine in
		armv2*-*-*)
			tm_file="arm/linux-elf26.h $tm_file"
			;;
		esac
		tmake_file="t-linux arm/t-linux"
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		gnu_ld=yes
		case x${enable_threads} in
		x | xyes | xpthreads | xposix)
			thread_file='posix'
			;;
		esac
		;;
	arm*-*-uclinux*)		# ARM ucLinux
		tm_file=arm/uclinux-elf.h
		tmake_file=arm/t-arm-elf
		;;
	arm*-*-aout)
		tm_file=arm/aout.h
		tmake_file=arm/t-bare
		;;
        arm*-*-ecos-elf)
		tm_file=arm/ecos-elf.h
		tmake_file=arm/t-elf
		;; 
	arm*-*-elf)
		tm_file=arm/unknown-elf.h
		tmake_file=arm/t-arm-elf
		;;
	arm*-*-conix*)
		tm_file=arm/conix-elf.h
		tmake_file=arm/t-arm-elf
		;;
        arm*-*-oabi)
		tm_file=arm/unknown-elf-oabi.h
		tmake_file=arm/t-arm-elf
		;;
	arm-*-pe*)
		tm_file=arm/pe.h
		tmake_file=arm/t-pe
		extra_objs=pe.o
		;;
	avr-*-*)
		;;
	c1-convex-*)			# Convex C1
		target_cpu_default=1
		use_collect2=yes
		;;
	c2-convex-*)			# Convex C2
		target_cpu_default=2
		use_collect2=yes
		;;
	c32-convex-*)
		target_cpu_default=4
		use_collect2=yes
		;;
	c34-convex-*)
		target_cpu_default=8
		use_collect2=yes
		;;
	c38-convex-*)
		target_cpu_default=16		
		use_collect2=yes
		;;
 	c4x-*)
 		cpu_type=c4x
 		tmake_file=c4x/t-c4x
 		;;
	clipper-intergraph-clix*)
		tm_file="${tm_file} svr3.h clipper/clix.h"
		xm_file=clipper/xm-clix.h
		xmake_file=clipper/x-clix
		extra_headers=va-clipper.h
		extra_parts="crtbegin.o crtend.o"
		install_headers_dir=install-headers-cpio
		;;
	dsp16xx-*)
		;;
	elxsi-elxsi-*)
		use_collect2=yes
		;;
	fr30-*-elf)
		tm_file="fr30/fr30.h"
		tmake_file=fr30/t-fr30
		extra_parts="crti.o crtn.o crtbegin.o crtend.o"
		;;
# This hasn't been upgraded to GCC 2.
#	fx80-alliant-*)			# Alliant FX/80
#		;;
	h8300-*-*)
		float_format=i32
		;;
	hppa*-*-linux*)
		target_cpu_default="(MASK_PA_11 | MASK_GAS | MASK_JUMP_IN_DELAY)"
		tm_file="${tm_file} pa/elf.h linux.h pa/pa-linux.h"
		tmake_file="t-linux pa/t-linux"
		extra_parts="crtbegin.o crtend.o"
		xmake_file=none
		gas=yes gnu_ld=yes
 		if test x$enable_threads = xyes; then
 			thread_file='posix'
 		fi
		;;
	hppa*-*-openbsd*)
		target_cpu_default="MASK_PA_11"
		tmake_file=pa/t-openbsd
		;;
	hppa1.1-*-pro*)
		target_cpu_default="(MASK_JUMP_IN_DELAY | MASK_PORTABLE_RUNTIME | MASK_GAS | MASK_NO_SPACE_REGS | MASK_SOFT_FLOAT)"
		tm_file="${tm_file} pa/pa32-regs.h elfos.h pa/elf.h pa/pa-pro-end.h libgloss.h"
		xm_file=pa/xm-papro.h
		tmake_file=pa/t-pro
		;;
	hppa1.1-*-osf*)
		target_cpu_default="MASK_PA_11"
		tm_file="${tm_file} pa/pa32-regs.h pa/som.h pa/pa-osf.h"
		use_collect2=yes
		;;
	hppa1.1-*-rtems*)
		target_cpu_default="(MASK_JUMP_IN_DELAY | MASK_PORTABLE_RUNTIME | MASK_GAS | MASK_NO_SPACE_REGS | MASK_SOFT_FLOAT)"
		tm_file="${tm_file} pa/pa32-regs.h elfos.h pa/elf.h pa/pa-pro-end.h libgloss.h pa/rtems.h"
		xm_file=pa/xm-papro.h
		tmake_file=pa/t-pro
		;;
	hppa1.0-*-osf*)
		tm_file="${tm_file} pa/pa32-regs.h pa/som.h pa/pa-osf.h"
		use_collect2=yes
		;;
	hppa1.1-*-bsd*)
		tm_file="${tm_file} pa/pa32-regs.h pa/som.h"
		target_cpu_default="MASK_PA_11"
		use_collect2=yes
		;;
	hppa1.0-*-bsd*)
		tm_file="${tm_file} pa/pa32-regs.h pa/som.h"
		use_collect2=yes
		;;
	hppa1.0-*-hpux7*)
		tm_file="pa/pa-oldas.h ${tm_file} pa/pa32-regs.h pa/som.h pa/pa-hpux7.h"
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		if test x$gas = xyes
		then
			tm_file="${tm_file} pa/gas.h"
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
changequote(,)dnl
	hppa1.0-*-hpux8.0[0-2]*)
changequote([,])dnl
		tm_file="${tm_file} pa/pa32-regs.h pa/som.h pa/pa-hpux.h"
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		if test x$gas = xyes
		then
			tm_file="${tm_file} pa/pa-gas.h"
		else
			tm_file="pa/pa-oldas.h ${tm_file}"
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
changequote(,)dnl
	hppa1.1-*-hpux8.0[0-2]*)
changequote([,])dnl
		target_cpu_default="MASK_PA_11"
		tm_file="${tm_file} pa/pa32-regs.h pa/som.h pa/pa-hpux.h"
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		if test x$gas = xyes
		then
			tm_file="${tm_file} pa/pa-gas.h"
		else
			tm_file="pa/pa-oldas.h ${tm_file}"
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.1-*-hpux8*)
		target_cpu_default="MASK_PA_11"
		tm_file="${tm_file} pa/pa32-regs.h pa/som.h pa/pa-hpux.h"
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		if test x$gas = xyes
		then
			tm_file="${tm_file} pa/pa-gas.h"
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.0-*-hpux8*)
		tm_file="${tm_file} pa/pa32-regs.h pa/som.h pa/pa-hpux.h"
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		if test x$gas = xyes
		then
			tm_file="${tm_file} pa/pa-gas.h"
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.1-*-hpux10* | hppa2*-*-hpux10*)
		target_cpu_default="MASK_PA_11"
		tm_file="${tm_file} pa/pa32-regs.h pa/long_double.h pa/som.h pa/pa-hpux.h pa/pa-hpux10.h"
		float_format=i128
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		tmake_file=pa/t-pa
		if test x$gas = xyes
		then
			tm_file="${tm_file} pa/pa-gas.h"
		fi
		if test x$enable_threads = x; then
		    enable_threads=$have_pthread_h
		fi
 		if test x$enable_threads = xyes; then
			thread_file='dce'
			tmake_file="${tmake_file} pa/t-dce-thr"
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.0-*-hpux10*)
		tm_file="${tm_file} pa/pa32-regs.h pa/long_double.h pa/som.h pa/pa-hpux.h pa/pa-hpux10.h"
		float_format=i128
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		tmake_file=pa/t-pa
		if test x$gas = xyes
		then
			tm_file="${tm_file} pa/pa-gas.h"
		fi
		if test x$enable_threads = x; then
		    enable_threads=$have_pthread_h
		fi
 		if test x$enable_threads = xyes; then
			thread_file='dce'
			tmake_file="${tmake_file} pa/t-dce-thr"
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.1-*-hpux11* | hppa2*-*-hpux11*)
		target_cpu_default="MASK_PA_11"
		tm_file="${tm_file} pa/pa32-regs.h pa/long_double.h pa/som.h pa/pa-hpux.h pa/pa-hpux11.h"
		float_format=i128
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		tmake_file=pa/t-pa
		if test x$gas = xyes
		then
			tm_file="${tm_file} pa/pa-gas.h"
		fi
#		if test x$enable_threads = x; then
#		    enable_threads=$have_pthread_h
#		fi
# 		if test x$enable_threads = xyes; then
#			thread_file='dce'
#			tmake_file="${tmake_file} pa/t-dce-thr"
#		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.0-*-hpux11*)
		tm_file="${tm_file} pa/pa32-regs.h pa/long_double.h pa/som.h pa/pa-hpux.h pa/pa-hpux11.h"
		float_format=i128
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		if test x$gas = xyes
		then
			tm_file="${tm_file} pa/pa-gas.h"
		fi
#		if test x$enable_threads = x; then
#		    enable_threads=$have_pthread_h
#		fi
# 		if test x$enable_threads = xyes; then
#			thread_file='dce'
#			tmake_file="${tmake_file} pa/t-dce-thr"
#		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.1-*-hpux* | hppa2*-*-hpux*)
		target_cpu_default="MASK_PA_11"
		tm_file="${tm_file} pa/pa32-regs.h pa/som.h pa/pa-hpux.h pa/pa-hpux9.h"
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		if test x$gas = xyes
		then
			tm_file="${tm_file} pa/pa-gas.h"
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.0-*-hpux*)
		tm_file="${tm_file} pa/pa32-regs.h pa/som.h pa/pa-hpux.h pa/pa-hpux9.h"
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		if test x$gas = xyes
		then
			tm_file="${tm_file} pa/pa-gas.h"
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.1-*-hiux* | hppa2*-*-hiux*)
		target_cpu_default="MASK_PA_11"
		tm_file="${tm_file} pa/pa32-regs.h pa/som.h pa/pa-hpux.h pa/pa-hiux.h"
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		if test x$gas = xyes
		then
			tm_file="${tm_file} pa/pa-gas.h"
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.0-*-hiux*)
		tm_file="${tm_file} pa/pa32-regs.h pa/som.h pa/pa-hpux.h pa/pa-hiux.h"
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		if test x$gas = xyes
		then
			tm_file="${tm_file} pa/pa-gas.h"
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa*-*-lites*)
		tm_file="${tm_file} pa/pa32-regs.h elfos.h pa/elf.h"
		target_cpu_default="MASK_PA_11"
		use_collect2=yes
		;;
	hppa*-*-mpeix*)
		tm_file="${tm_file} pa/pa-mpeix.h"
		xm_file=pa/xm-pampeix.h 
		xmake_file=pa/x-pa-mpeix 
		echo "You must use gas. Assuming it is already installed." 
		install_headers_dir=install-headers-tar
		use_collect2=yes 
		;; 
	i370-*-opened*)			 # IBM 360/370/390 Architecture
		xm_file=i370/xm-oe.h
		tm_file=i370/oe.h
		xmake_file=i370/x-oe
		tmake_file=i370/t-oe
		;;
	i370-*-mvs*)
		xm_file=i370/xm-mvs.h
		tm_file=i370/mvs.h
		tmake_file=i370/t-mvs
		;;
	i370-*-linux*)
		xm_file="xm-linux.h i370/xm-linux.h"
		xmake_file=x-linux
		tm_file="i370/linux.h ${tm_file}"
		tmake_file="t-linux i370/t-linux"
		# broken_install=yes
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		# extra_parts="crtbegin.o crtend.o"
		gnu_ld=yes
		gas=yes
		elf=yes
		if test x$enable_threads = xyes; then
			thread_file='posix'
		fi
		;;
changequote(,)dnl
	i[34567]86-*-elf*)
changequote([,])dnl
		xm_file="${xm_file} xm-svr4.h i386/xm-sysv4.h"
		tm_file=i386/i386elf.h
		tmake_file=i386/t-i386elf
		xmake_file=x-svr4
		;;
changequote(,)dnl
	i[34567]86-ibm-aix*)		# IBM PS/2 running AIX
changequote([,])dnl
                if test x$gas = xyes
		then
			tm_file=i386/aix386.h
			extra_parts="crtbegin.o crtend.o"
			tmake_file=i386/t-crtstuff
		else
			tm_file=i386/aix386ng.h
			use_collect2=yes
		fi
		xm_file="xm-alloca.h i386/xm-aix.h ${xm_file}"
		xm_defines=USG
		xmake_file=i386/x-aix
		;;
changequote(,)dnl
	i[34567]86-ncr-sysv4*)		# NCR 3000 - ix86 running system V.4
changequote([,])dnl
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines="USG POSIX SMALL_ARG_MAX"
		xmake_file=i386/x-ncr3000
		if test x$stabs = xyes -a x$gas = xyes
		then
			tm_file=i386/sysv4gdb.h
		else
			tm_file=i386/sysv4.h
		fi
		extra_parts="crtbegin.o crtend.o"
		tmake_file=i386/t-crtpic
		;;
changequote(,)dnl
	i[34567]86-next-*)
changequote([,])dnl
		tm_file=i386/next.h
		xm_file=i386/xm-next.h
		tmake_file=i386/t-next
		xmake_file=i386/x-next
		extra_objs=nextstep.o
		extra_parts="crtbegin.o crtend.o"
 		if test x$enable_threads = xyes; then
			thread_file='mach'
		fi
		;;
changequote(,)dnl
	i[34567]86-sequent-bsd*) 		# 80386 from Sequent
changequote([,])dnl
		use_collect2=yes
		if test x$gas = xyes
		then
			tm_file=i386/seq-gas.h
		else
			tm_file=i386/sequent.h
		fi
		;;
changequote(,)dnl
	i[34567]86-sequent-ptx1*)
changequote([,])dnl
		xm_defines="USG SVR3"
		xmake_file=i386/x-sysv3
		tm_file=i386/seq-sysv3.h
		tmake_file=i386/t-crtstuff
		extra_parts="crtbegin.o crtend.o"
		install_headers_dir=install-headers-cpio
		;;
changequote(,)dnl
	i[34567]86-sequent-ptx2* | i[34567]86-sequent-sysv3*)
changequote([,])dnl
		xm_defines="USG SVR3"
		xmake_file=i386/x-sysv3
		tm_file=i386/seq2-sysv3.h
		tmake_file=i386/t-crtstuff
		extra_parts="crtbegin.o crtend.o"
		install_headers_dir=install-headers-cpio
		;;
changequote(,)dnl
	i[34567]86-sequent-ptx4* | i[34567]86-sequent-sysv4*)
changequote([,])dnl
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines="USG POSIX SMALL_ARG_MAX"
		xmake_file=x-svr4
		tm_file=i386/ptx4-i.h
		tmake_file=t-svr4
		extra_parts="crtbegin.o crtend.o"
		install_headers_dir=install-headers-cpio
		;;
	i386-sun-sunos*)		# Sun i386 roadrunner
		xm_defines=USG
		tm_file=i386/sun.h
		use_collect2=yes
		;;
changequote(,)dnl
	i[34567]86-wrs-vxworks*)
changequote([,])dnl
		tm_file=i386/vxi386.h
		tmake_file=i386/t-i386bare
		thread_file='vxworks'
		;;
changequote(,)dnl
	i[34567]86-*-aout*)
changequote([,])dnl
		tm_file=i386/i386-aout.h
		tmake_file=i386/t-i386bare
		;;
changequote(,)dnl
	i[34567]86-*-beospe*)
changequote([,])dnl
		xm_file=i386/xm-beos.h
		xm_defines="USE_C_ALLOCA"
		tmake_file=i386/t-beos
		tm_file=i386/beos-pe.h
		xmake_file=i386/x-beos
		extra_objs=winnt.o
		;;
changequote(,)dnl
	i[34567]86-*-beoself* | i[34567]86-*-beos*)
changequote([,])dnl
		xm_file=i386/xm-beos.h
		tmake_file='i386/t-beos i386/t-crtpic'
		tm_file=i386/beos-elf.h
		xmake_file=i386/x-beos
		extra_objs=winnt.o
		extra_parts='crtbegin.o crtend.o'
		;;
changequote(,)dnl
	i[34567]86-*-bsdi* | i[34567]86-*-bsd386*)
changequote([,])dnl
		tm_file=i386/bsd386.h
#		tmake_file=t-libc-ok
		;;
changequote(,)dnl
	i[34567]86-*-bsd*)
changequote([,])dnl
		tm_file=i386/386bsd.h
#		tmake_file=t-libc-ok
# Next line turned off because both 386BSD and BSD/386 use GNU ld.
#		use_collect2=yes
		;;
changequote(,)dnl
	i[34567]86-*-freebsdelf*)
changequote([,])dnl
		tm_file="i386/i386.h i386/att.h svr4.h freebsd.h i386/freebsd-elf.h i386/perform.h"
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		tmake_file=t-freebsd
		gas=yes
		gnu_ld=yes
		stabs=yes
		case x${enable_threads} in
		xyes | xpthreads | xposix)
			thread_file='posix'
			tmake_file="${tmake_file} t-freebsd-thread"
			;;
		esac
		;;
changequote(,)dnl
	i[34567]86-*-freebsd*)
changequote([,])dnl
		tm_file="i386/freebsd.h i386/perform.h"
		tmake_file=t-freebsd
		;;
changequote(,)dnl
	i[34567]86-*-netbsd*)
changequote([,])dnl
		tm_file=i386/netbsd.h
		tmake_file=t-netbsd
		use_collect2=yes
		;;
changequote(,)dnl
	i[34567]86-*-openbsd*)
changequote([,])dnl
		# we need collect2 until our bug is fixed...
		use_collect2=yes
		;;
changequote(,)dnl
	i[34567]86-*-coff*)
changequote([,])dnl
		tm_file=i386/i386-coff.h
		tmake_file=i386/t-i386bare
		;;
changequote(,)dnl
	i[34567]86-*-isc*)		# 80386 running ISC system
changequote([,])dnl
		xm_file="${xm_file} i386/xm-isc.h"
		xm_defines="USG SVR3"
		case $machine in
changequote(,)dnl
		  i[34567]86-*-isc[34]*)
changequote([,])dnl
		    xmake_file=i386/x-isc3
		    ;;
		  *)
		    xmake_file=i386/x-isc
		    ;;
		esac
                if test x$gas = xyes -a x$stabs = xyes
		then
			tm_file=i386/iscdbx.h
			tmake_file=i386/t-svr3dbx
			extra_parts="svr3.ifile svr3z.ifile"
		else
			tm_file=i386/isccoff.h
			tmake_file=i386/t-crtstuff
			extra_parts="crtbegin.o crtend.o"
		fi
		install_headers_dir=install-headers-cpio
		;;
changequote(,)dnl
	i[34567]86-*-linux-gnuoldld*)	# Intel 80386's running GNU/Linux
changequote([,])dnl			# with a.out format using
					# pre BFD linkers
		xmake_file=x-linux-aout
		tmake_file="t-linux-aout i386/t-crtstuff"
		tm_file=i386/linux-oldld.h
		gnu_ld=yes
		float_format=i386
		;;
changequote(,)dnl
	i[34567]86-*-linux-gnuaout*)	# Intel 80386's running GNU/Linux
changequote([,])dnl			# with a.out format
		xmake_file=x-linux-aout
		tmake_file="t-linux-aout i386/t-crtstuff"
		tm_file=i386/linux-aout.h
		gnu_ld=yes
		float_format=i386
		;;
changequote(,)dnl
	i[34567]86-*-linux-gnulibc1)	# Intel 80386's running GNU/Linux
changequote([,])dnl			# with ELF format using the
					# GNU/Linux C library 5
		xmake_file=x-linux	
		tm_file=i386/linux.h	
		tmake_file="t-linux t-linux-gnulibc1 i386/t-crtstuff"
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		gnu_ld=yes
		float_format=i386
 		if test x$enable_threads = xyes; then
 			thread_file='single'
 		fi
		;;
changequote(,)dnl
	i[34567]86-*-linux-gnu*)	# Intel 80386's running GNU/Linux
changequote([,])dnl			# with ELF format using glibc 2
					# aka GNU/Linux C library 6
		xmake_file=x-linux
		tm_file=i386/linux.h
		tmake_file="t-linux i386/t-crtstuff"
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		gnu_ld=yes
		float_format=i386
 		if test x$enable_threads = xyes; then
 			thread_file='posix'
 		fi
		;;
changequote(,)dnl
	i[34567]86-*-gnu*)
		float_format=i386
changequote([,])dnl
		;;
changequote(,)dnl
	i[34567]86-go32-msdos | i[34567]86-*-go32*)
changequote([,])dnl
		echo "GO32/DJGPP V1.X is no longer supported. Use *-pc-msdosdjgpp for DJGPP V2.X instead."
		exit 1
		;;
changequote(,)dnl
	i[34567]86-pc-msdosdjgpp*)
changequote([,])dnl
		xm_file=i386/xm-djgpp.h
		tm_file=i386/djgpp.h
		tmake_file=i386/t-djgpp
		xmake_file=i386/x-djgpp
		gnu_ld=yes
		gas=yes
		exeext=.exe
		case $host in *pc-msdosdjgpp*)
			target_alias=djgpp
			;;
		esac
		;;
changequote(,)dnl
	i[34567]86-moss-msdos* | i[34567]86-*-moss*)
changequote([,])dnl
		tm_file=i386/moss.h
		tmake_file=t-libc-ok
		gnu_ld=yes
		gas=yes
		;;
changequote(,)dnl
	i[34567]86-*-lynxos*)
changequote([,])dnl
		if test x$gas = xyes
		then
			tm_file=i386/lynx.h
		else
			tm_file=i386/lynx-ng.h
		fi
		xm_file=i386/xm-lynx.h
		tmake_file=i386/t-i386bare
		xmake_file=x-lynx
		;;
changequote(,)dnl
	i[34567]86-*-mach*)
changequote([,])dnl
		tm_file=i386/mach.h
#		tmake_file=t-libc-ok
		use_collect2=yes
		;;
changequote(,)dnl
	i[34567]86-*-osfrose*)		# 386 using OSF/rose
changequote([,])dnl
                if test x$elf = xyes
		then
			tm_file=i386/osfelf.h
			use_collect2=
		else
			tm_file=i386/osfrose.h
			use_collect2=yes
		fi
		xm_file="i386/xm-osf.h ${xm_file}"
		xmake_file=i386/x-osfrose
		tmake_file=i386/t-osf
		extra_objs=halfpic.o
		;;
changequote(,)dnl
	i[34567]86-go32-rtems*)
changequote([,])dnl
		cpu_type=i386
		xm_file=i386/xm-go32.h
		tm_file=i386/go32-rtems.h
		tmake_file="i386/t-go32 t-rtems"
		;;
changequote(,)dnl
	i[34567]86-*-rtemscoff*)
changequote([,])dnl
		cpu_type=i386
		tm_file=i386/rtems.h
		tmake_file="i386/t-i386bare t-rtems"
		;;
changequote(,)dnl
	i[34567]86-*-rtems*|i[34567]86-*-rtemself*)
changequote([,])dnl
		cpu_type=i386
		tm_file=i386/rtemself.h
		extra_parts="crtbegin.o crtend.o crti.o crtn.o"
		tmake_file="i386/t-rtems-i386 i386/t-crtstuff t-rtems"
		;;
changequote(,)dnl
	i[34567]86-*-sco3.2v5*)	# 80386 running SCO Open Server 5
changequote([,])dnl
		xm_file="xm-alloca.h ${xm_file} i386/xm-sco5.h"
		xm_defines="USG SVR3"
		xmake_file=i386/x-sco5
		install_headers_dir=install-headers-cpio
		tm_file=i386/sco5.h
		if test x$gas = xyes
		then
			tm_file="i386/sco5gas.h ${tm_file}"
			tmake_file=i386/t-sco5gas
		else
			tmake_file=i386/t-sco5
		fi
		extra_parts="crti.o crtbegin.o crtend.o crtbeginS.o crtendS.o"
		;;
changequote(,)dnl
	i[34567]86-*-sco3.2v4*) 	# 80386 running SCO 3.2v4 system
changequote([,])dnl
		xm_file="${xm_file} i386/xm-sco.h"
		xm_defines="USG SVR3 BROKEN_LDEXP SMALL_ARG_MAX"
		xmake_file=i386/x-sco4
		install_headers_dir=install-headers-cpio
                if test x$stabs = xyes
		then
			tm_file=i386/sco4dbx.h
			tmake_file=i386/t-svr3dbx
			extra_parts="svr3.ifile svr3z.rfile"
		else
			tm_file=i386/sco4.h
			tmake_file=i386/t-crtstuff
			extra_parts="crtbegin.o crtend.o"
		fi
		# The default EAFS filesystem supports long file names.
		# Truncating the target makes $host != $target which
		# makes gcc think it is doing a cross-compile.
		# truncate_target=yes
		;;
changequote(,)dnl
	i[34567]86-*-sco*)	 	# 80386 running SCO system
changequote([,])dnl
		xm_file=i386/xm-sco.h
		xmake_file=i386/x-sco
		install_headers_dir=install-headers-cpio
                if test x$stabs = xyes
		then
			tm_file=i386/scodbx.h
			tmake_file=i386/t-svr3dbx
			extra_parts="svr3.ifile svr3z.rfile"
		else
			tm_file=i386/sco.h
			extra_parts="crtbegin.o crtend.o"
			tmake_file=i386/t-crtstuff
		fi
		truncate_target=yes
		;;
changequote(,)dnl
	i[34567]86-*-solaris2*)
changequote([,])dnl
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines="USG POSIX SMALL_ARG_MAX"
		tm_file=i386/sol2.h
		if test x$gas = xyes; then
			# Only needed if gas does not support -s
			tm_file="i386/sol2gas.h ${tm_file}"
		fi
		tmake_file=i386/t-sol2
		extra_parts="crt1.o crti.o crtn.o gcrt1.o gmon.o crtbegin.o crtend.o"
		xmake_file=x-svr4
		if test x${enable_threads} = x; then
		    enable_threads=$have_pthread_h
		    if test x${enable_threads} = x; then
			enable_threads=$have_thread_h
		    fi
		fi
		if test x${enable_threads} = xyes; then
		    if test x${have_pthread_h} = xyes; then
			thread_file='posix'
		    else
			thread_file='solaris'
		    fi
		fi
		;;
changequote(,)dnl
       i[34567]86-*-sysv5*)           # Intel x86 on System V Release 5
changequote([,])dnl
               xm_file="xm-alloca.h ${xm_file}"
               xm_defines="USG POSIX"
               tm_file=i386/sysv5.h
               if test x$stabs = xyes
               then
                       tm_file="${tm_file} dbx.h"
               fi
               tmake_file=i386/t-crtpic
               xmake_file=x-svr4
               extra_parts="crtbegin.o crtend.o"
	       if test x$enable_threads = xyes; then
		       thread_file='posix'
	       fi
               ;;
changequote(,)dnl
	i[34567]86-*-sysv4*)		# Intel 80386's running system V.4
changequote([,])dnl
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines="USG POSIX SMALL_ARG_MAX"
		tm_file=i386/sysv4.h
		if test x$stabs = xyes
		then
			tm_file="${tm_file} dbx.h"
		fi
		tmake_file=i386/t-crtpic
		xmake_file=x-svr4
		extra_parts="crtbegin.o crtend.o"
		;;
changequote(,)dnl
	i[34567]86-*-udk*)      # Intel x86 on SCO UW/OSR5 Dev Kit
changequote([,])dnl
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines="USG POSIX"
		tm_file=i386/udk.h
		tmake_file="i386/t-crtpic i386/t-udk"
		xmake_file=x-svr4
		extra_parts="crtbegin.o crtend.o"
		install_headers_dir=install-headers-cpio
		;;
changequote(,)dnl
	i[34567]86-*-osf1*)		# Intel 80386's running OSF/1 1.3+
changequote([,])dnl
		cpu_type=i386
		xm_file="${xm_file} xm-svr4.h i386/xm-sysv4.h i386/xm-osf1elf.h"
		xm_defines="USE_C_ALLOCA SMALL_ARG_MAX"
		if test x$stabs = xyes
		then
			tm_file=i386/osf1elfgdb.h
		else
			tm_file=i386/osf1elf.h
		fi
		tmake_file=i386/t-osf1elf
		xmake_file=i386/x-osf1elf
		extra_parts="crti.o crtn.o crtbegin.o crtend.o"
		;;
changequote(,)dnl
	i[34567]86-*-sysv*)		# Intel 80386's running system V
changequote([,])dnl
		xm_defines="USG SVR3"
		xmake_file=i386/x-sysv3
		if test x$gas = xyes
		then
			if test x$stabs = xyes
			then
				tm_file=i386/svr3dbx.h
				tmake_file=i386/t-svr3dbx
				extra_parts="svr3.ifile svr3z.rfile"
			else
				tm_file=i386/svr3gas.h
				extra_parts="crtbegin.o crtend.o"
				tmake_file=i386/t-crtstuff
			fi
		else
			tm_file=i386/sysv3.h
			extra_parts="crtbegin.o crtend.o"
			tmake_file=i386/t-crtstuff
		fi
		;;
	i386-*-vsta)			# Intel 80386's running VSTa kernel
		xm_file="${xm_file} i386/xm-vsta.h"
		tm_file=i386/vsta.h
		tmake_file=i386/t-vsta
		xmake_file=i386/x-vsta
		;;
changequote(,)dnl
	i[34567]86-*-win32)
changequote([,])dnl
		xm_file="${xm_file} i386/xm-cygwin.h"
		tmake_file=i386/t-cygwin
		tm_file=i386/win32.h
		xmake_file=i386/x-cygwin
		extra_objs=winnt.o
 		if test x$enable_threads = xyes; then
			thread_file='win32'
		fi
		exeext=.exe
		;;
changequote(,)dnl
	i[34567]86-*-pe | i[34567]86-*-cygwin*)
changequote([,])dnl
		xm_file="${xm_file} i386/xm-cygwin.h"
		tmake_file=i386/t-cygwin
		tm_file=i386/cygwin.h
		xmake_file=i386/x-cygwin
		extra_objs=winnt.o
 		if test x$enable_threads = xyes; then
			thread_file='win32'
		fi
		exeext=.exe
		;;
changequote(,)dnl
	i[34567]86-*-mingw32*)
changequote([,])dnl
		tm_file=i386/mingw32.h
		xm_file="${xm_file} i386/xm-mingw32.h"
		tmake_file="i386/t-cygwin i386/t-mingw32"
		extra_objs=winnt.o
		xmake_file=i386/x-cygwin
 		if test x$enable_threads = xyes; then
			thread_file='win32'
		fi
		exeext=.exe
		case $machine in
			*mingw32msv*)
				;;
			*minwg32crt* | *mingw32*)
				tm_file="${tm_file} i386/crtdll.h"
				;;
		esac
		;;
changequote(,)dnl
	i[34567]86-*-uwin*)
changequote([,])dnl
		tm_file=i386/uwin.h
		xm_file="${xm_file} i386/xm-uwin.h"
		xm_defines="USG NO_STAB_H"
		tmake_file="i386/t-cygwin i386/t-uwin"
		extra_objs=winnt.o
		xmake_file=i386/x-cygwin
 		if test x$enable_threads = xyes; then
			thread_file='win32'
		fi
		exeext=.exe
		;;
changequote(,)dnl
	i[34567]86-*-interix*)
changequote([,])dnl
		tm_file="i386/i386-interix.h interix.h"
		xm_file="i386/xm-i386-interix.h xm-interix.h"
		xm_defines="USG"
		tmake_file="i386/t-interix"
		extra_objs=interix.o
		xmake_file=x-interix
 		if test x$enable_threads = xyes ; then
			thread_file='posix'
		fi
 		if test x$stabs = xyes ; then
			tm_file="${tm_file} dbxcoff.h"
		fi
		;;
changequote(,)dnl
	i[34567]86-*-winnt3*)
changequote([,])dnl
		tm_file=i386/win-nt.h
		out_file=i386/i386.c
		xm_file="xm-winnt.h ${xm_file}"
		xmake_file=winnt/x-winnt
		tmake_file=i386/t-winnt
		extra_host_objs="winnt.o oldnames.o"
		extra_gcc_objs="spawnv.o oldnames.o"
		if test x$gnu_ld != xyes
		then
			extra_programs=ld.exe
		fi
 		if test x$enable_threads = xyes; then
			thread_file='win32'
		fi
		;;
changequote(,)dnl
	i[34567]86-dg-dgux*)
changequote([,])dnl
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines="USG POSIX"
		out_file=i386/dgux.c
		tm_file=i386/dgux.h
		tmake_file=i386/t-dgux
		xmake_file=i386/x-dgux
		install_headers_dir=install-headers-cpio
              ;;
	i860-alliant-*)		# Alliant FX/2800
		tm_file="${tm_file} svr4.h i860/sysv4.h i860/fx2800.h"
		xm_file="${xm_file}"
		xmake_file=i860/x-fx2800
		tmake_file=i860/t-fx2800
		extra_parts="crtbegin.o crtend.o"
		;;
	i860-*-bsd*)
		tm_file="${tm_file} i860/bsd.h"
		if test x$gas = xyes
		then
			tm_file="${tm_file} i860/bsd-gas.h"
		fi
		use_collect2=yes
		;;
	i860-*-mach*)
		tm_file="${tm_file} i860/mach.h"
		tmake_file=t-libc-ok
		;;
	i860-*-osf*)			# Intel Paragon XP/S, OSF/1AD
		tm_file="${tm_file} svr3.h i860/paragon.h"
		xm_defines="USG SVR3"
		tmake_file=t-osf
		;;
	i860-*-sysv3*)
		tm_file="${tm_file} svr3.h i860/sysv3.h"
		xm_defines="USG SVR3"
		xmake_file=i860/x-sysv3
		extra_parts="crtbegin.o crtend.o"
		;;
	i860-*-sysv4*)
		tm_file="${tm_file} svr4.h i860/sysv4.h"
		xm_defines="USG SVR3"
		xmake_file=i860/x-sysv4
		tmake_file=t-svr4
		extra_parts="crtbegin.o crtend.o"
		;;
	i960-wrs-vxworks5 | i960-wrs-vxworks5.0*)
		tm_file="${tm_file} i960/vx960.h"
		tmake_file=i960/t-vxworks960
		use_collect2=yes
		thread_file='vxworks'
		;;
	i960-wrs-vxworks5* | i960-wrs-vxworks)
		tm_file="${tm_file} dbxcoff.h i960/i960-coff.h i960/vx960-coff.h"
		tmake_file=i960/t-vxworks960
		use_collect2=yes
		thread_file='vxworks'
		;;
	i960-wrs-vxworks*)
		tm_file="${tm_file} i960/vx960.h"
		tmake_file=i960/t-vxworks960
		use_collect2=yes
		thread_file='vxworks'
		;;
	i960-*-coff*)
		tm_file="${tm_file} dbxcoff.h i960/i960-coff.h libgloss.h"
		tmake_file=i960/t-960bare
		use_collect2=yes
		;;
	i960-*-rtems)
		tmake_file="i960/t-960bare t-rtems"
		tm_file="${tm_file} dbxcoff.h i960/rtems.h"
		use_collect2=yes
		;;
	i960-*-*)			# Default i960 environment.
		use_collect2=yes
		;;
	ia64*-*-elf*)
		tm_file=ia64/elf.h
		tmake_file="ia64/t-ia64"
		target_cpu_default="0"
		if test x$gas = xyes
		then
			target_cpu_default="${target_cpu_default}|MASK_GNU_AS"
		fi
		if test x$gnu_ld = xyes
		then
			target_cpu_default="${target_cpu_default}|MASK_GNU_LD"
		fi
		;;
	ia64*-*-linux*)
		tm_file=ia64/linux.h
		tmake_file="t-linux ia64/t-ia64"
		target_cpu_default="MASK_GNU_AS|MASK_GNU_LD"
 		if test x$enable_threads = xyes; then
 			thread_file='posix'
 		fi
		;;
	m32r-*-elf*)
		extra_parts="crtinit.o crtfini.o"
		;;
	m68000-convergent-sysv*)
		tm_file=m68k/ctix.h
		xm_file="m68k/xm-3b1.h ${xm_file}"
		xm_defines=USG
		use_collect2=yes
		extra_headers=math-68881.h
		;;
	m68000-hp-bsd*)			# HP 9000/200 running BSD
		tm_file=m68k/hp2bsd.h
		xmake_file=m68k/x-hp2bsd
		use_collect2=yes
		extra_headers=math-68881.h
		;;
	m68000-hp-hpux*)		# HP 9000 series 300
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines="USG"
		if test x$gas = xyes
		then
			xmake_file=m68k/x-hp320g
			tm_file=m68k/hp310g.h
		else
			xmake_file=m68k/x-hp320
			tm_file=m68k/hp310.h
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		extra_headers=math-68881.h
		;;
	m68000-sun-sunos3*)
		tm_file=m68k/sun2.h
		use_collect2=yes
		extra_headers=math-68881.h
		;;
	m68000-sun-sunos4*)
		tm_file=m68k/sun2o4.h
		use_collect2=yes
		extra_headers=math-68881.h
		;;
	m68000-att-sysv*)
		xm_file="m68k/xm-3b1.h ${xm_file}"
		xm_defines=USG
		if test x$gas = xyes
		then
			tm_file=m68k/3b1g.h
		else
			tm_file=m68k/3b1.h
		fi
		use_collect2=yes
		extra_headers=math-68881.h
		;;
	m68k-apple-aux*)		# Apple Macintosh running A/UX
		xm_defines="USG AUX"
		tmake_file=m68k/t-aux
		install_headers_dir=install-headers-cpio
		extra_headers=math-68881.h
		extra_parts="crt1.o mcrt1.o maccrt1.o crt2.o crtn.o"
		tm_file=
		if test "$gnu_ld" = yes
		then
			tm_file="${tm_file} m68k/auxgld.h"
		else
			tm_file="${tm_file} m68k/auxld.h"
		fi
		if test "$gas" = yes
		then
			tm_file="${tm_file} m68k/auxgas.h"
		else
			tm_file="${tm_file} m68k/auxas.h"
		fi
		tm_file="${tm_file} m68k/a-ux.h"
		float_format=m68k
		;;
	m68k-apollo-*)
		tm_file=m68k/apollo68.h
		xmake_file=m68k/x-apollo68
		use_collect2=yes
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-altos-sysv*)		   # Altos 3068
		if test x$gas = xyes
		then
		        tm_file=m68k/altos3068.h
			xm_defines=USG
		else
			echo "The Altos is supported only with the GNU assembler" 1>&2
			exit 1
		fi
		extra_headers=math-68881.h
	        ;;
	m68k-bull-sysv*)		# Bull DPX/2
		if test x$gas = xyes
		then
			if test x$stabs = xyes
			then
				tm_file=m68k/dpx2cdbx.h
			else
				tm_file=m68k/dpx2g.h
			fi
		else
			tm_file=m68k/dpx2.h
		fi
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines=USG
		xmake_file=m68k/x-dpx2
		use_collect2=yes
		extra_headers=math-68881.h
		;;
	m68k-atari-sysv4*)              # Atari variant of V.4.
		tm_file=m68k/atari.h
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines="USG FULL_PROTOTYPES"
		tmake_file=t-svr4
		extra_parts="crtbegin.o crtend.o"
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-motorola-sysv*)
		tm_file=m68k/mot3300.h
		xm_file="xm-alloca.h m68k/xm-mot3300.h ${xm_file}"
		if test x$gas = xyes
		then
			xmake_file=m68k/x-mot3300-gas
			if test x$gnu_ld = xyes
			then
				tmake_file=m68k/t-mot3300-gald
			else
				tmake_file=m68k/t-mot3300-gas
				use_collect2=yes
			fi
		else
			xmake_file=m68k/x-mot3300
			if test x$gnu_ld = xyes
			then
				tmake_file=m68k/t-mot3300-gld
			else
				tmake_file=m68k/t-mot3300
				use_collect2=yes
			fi
		fi
		gdb_needs_out_file_path=yes
		extra_parts="crt0.o mcrt0.o"
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-ncr-sysv*)			# NCR Tower 32 SVR3
		tm_file=m68k/tower-as.h
		xm_defines="USG SVR3"
		xmake_file=m68k/x-tower
		extra_parts="crtbegin.o crtend.o"
		extra_headers=math-68881.h
		;;
        m68k-plexus-sysv*)
		tm_file=m68k/plexus.h
		xm_file="xm-alloca.h m68k/xm-plexus.h ${xm_file}"
		xm_defines=USG
		use_collect2=yes
		extra_headers=math-68881.h
		;;
	m68k-tti-*)
		tm_file=m68k/pbb.h
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines=USG
		extra_headers=math-68881.h
		;;
	m68k-crds-unos*)
		xm_file="xm-alloca.h m68k/xm-crds.h ${xm_file}"
		xm_defines="USG unos"
		xmake_file=m68k/x-crds
		tm_file=m68k/crds.h
		use_collect2=yes
		extra_headers=math-68881.h
		;;
	m68k-cbm-sysv4*)		# Commodore variant of V.4.
		tm_file=m68k/amix.h
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines="USG FULL_PROTOTYPES"
		xmake_file=m68k/x-amix
		tmake_file=t-svr4
		extra_parts="crtbegin.o crtend.o"
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-ccur-rtu)
		tm_file=m68k/ccur-GAS.h
		xmake_file=m68k/x-ccur
		extra_headers=math-68881.h
		use_collect2=yes
		float_format=m68k
		;;
	m68k-hp-bsd4.4*)		# HP 9000/3xx running 4.4bsd
		tm_file=m68k/hp3bsd44.h
		xmake_file=m68k/x-hp3bsd44
		use_collect2=yes
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-hp-bsd*)			# HP 9000/3xx running Berkeley Unix
		tm_file=m68k/hp3bsd.h
		use_collect2=yes
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-isi-bsd*)
		if test x$with_fp = xno
		then
			tm_file=m68k/isi-nfp.h
		else
			tm_file=m68k/isi.h
			float_format=m68k
		fi
		use_collect2=yes
		extra_headers=math-68881.h
		;;
	m68k-hp-hpux7*)	# HP 9000 series 300 running HPUX version 7.
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines="USG"
		if test x$gas = xyes
		then
			xmake_file=m68k/x-hp320g
			tm_file=m68k/hp320g.h
		else
			xmake_file=m68k/x-hp320
			tm_file=m68k/hpux7.h
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-hp-hpux*)	# HP 9000 series 300
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines="USG"
		if test x$gas = xyes
		then
			xmake_file=m68k/x-hp320g
			tm_file=m68k/hp320g.h
		else
			xmake_file=m68k/x-hp320
			tm_file=m68k/hp320.h
		fi
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-sun-mach*)
		tm_file=m68k/sun3mach.h
		use_collect2=yes
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-sony-newsos3*)
		if test x$gas = xyes
		then
			tm_file=m68k/news3gas.h
		else
			tm_file=m68k/news3.h
		fi
		use_collect2=yes
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-sony-bsd* | m68k-sony-newsos*)
		if test x$gas = xyes
		then
			tm_file=m68k/newsgas.h
		else
			tm_file=m68k/news.h
		fi
		use_collect2=yes
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-next-nextstep2*)
		tm_file=m68k/next21.h
		xm_file="m68k/xm-next.h ${xm_file}"
		tmake_file=m68k/t-next
		xmake_file=m68k/x-next
		extra_objs=nextstep.o
		extra_headers=math-68881.h
		use_collect2=yes
		float_format=m68k
                ;;
changequote(,)dnl
	m68k-next-nextstep[34]*)
changequote([,])dnl
		tm_file=m68k/next.h
		xm_file="m68k/xm-next.h ${xm_file}"
		tmake_file=m68k/t-next
		xmake_file=m68k/x-next
		extra_objs=nextstep.o
		extra_parts="crtbegin.o crtend.o"
		extra_headers=math-68881.h
		float_format=m68k
 		if test x$enable_threads = xyes; then
			thread_file='mach'
		fi
		;;
	m68k-sun-sunos3*)
		if test x$with_fp = xno
		then
			tm_file=m68k/sun3n3.h
		else
			tm_file=m68k/sun3o3.h
			float_format=m68k
		fi
		use_collect2=yes
		extra_headers=math-68881.h
		;;
	m68k-sun-sunos*)			# For SunOS 4 (the default).
		if test x$with_fp = xno
		then
			tm_file=m68k/sun3n.h
		else
			tm_file=m68k/sun3.h
			float_format=m68k
		fi
		use_collect2=yes
		extra_headers=math-68881.h
		;;
	m68k-wrs-vxworks*)
		tm_file=m68k/vxm68k.h
		tmake_file=m68k/t-vxworks68
		extra_headers=math-68881.h
		thread_file='vxworks'
		float_format=m68k
		;;
	m68k-*-aout*)
		tmake_file=m68k/t-m68kbare
		tm_file="m68k/m68k-aout.h libgloss.h"
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-*-coff*)
		tmake_file=m68k/t-m68kbare
		tm_file="m68k/m68k-coff.h dbx.h libgloss.h"
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68020-*-elf* | m68k-*-elf*)
		tm_file="m68k/m68020-elf.h"
		xm_file=m68k/xm-m68kv.h
		tmake_file=m68k/t-m68kelf
		header_files=math-68881.h
		;;
	m68k-*-lynxos*)
		if test x$gas = xyes
		then
			tm_file=m68k/lynx.h
		else
			tm_file=m68k/lynx-ng.h
		fi
		xm_file=m68k/xm-lynx.h
		xmake_file=x-lynx
		tmake_file=m68k/t-lynx
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k*-*-netbsd*)
		tm_file=m68k/netbsd.h
		tmake_file=t-netbsd
		float_format=m68k
		use_collect2=yes
		;;
	m68k*-*-openbsd*)
		float_format=m68k
		# we need collect2 until our bug is fixed...
		use_collect2=yes
		;;
	m68k-*-sysv3*)			# Motorola m68k's running system V.3
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines=USG
		xmake_file=m68k/x-m68kv
		extra_parts="crtbegin.o crtend.o"
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-*-sysv4*)			# Motorola m68k's running system V.4
		tm_file=m68k/m68kv4.h
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines=USG
		tmake_file=t-svr4
		extra_parts="crtbegin.o crtend.o"
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-*-linux-gnuaout*)		# Motorola m68k's running GNU/Linux
					# with a.out format
		xmake_file=x-linux
		tm_file=m68k/linux-aout.h
		tmake_file="t-linux-aout m68k/t-linux-aout"
		extra_headers=math-68881.h
		float_format=m68k
		gnu_ld=yes
		;;
	m68k-*-linux-gnulibc1)		# Motorola m68k's running GNU/Linux
					# with ELF format using the
					# GNU/Linux C library 5
		xmake_file=x-linux
		tm_file=m68k/linux.h
		tmake_file="t-linux t-linux-gnulibc1 m68k/t-linux"
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		extra_headers=math-68881.h
		float_format=m68k
		gnu_ld=yes
		;;
	m68k-*-linux-gnu*)		# Motorola m68k's running GNU/Linux
					# with ELF format using glibc 2
					# aka the GNU/Linux C library 6.
		xmake_file=x-linux
		tm_file=m68k/linux.h
		tmake_file="t-linux m68k/t-linux"
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		extra_headers=math-68881.h
		float_format=m68k
		gnu_ld=yes
		if test x$enable_threads = xyes; then
			thread_file='posix'
		fi
		;;
	m68k-*-psos*)
		tmake_file=m68k/t-m68kbare
		tm_file=m68k/m68k-psos.h
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-*-rtemscoff*)
		tmake_file="m68k/t-m68kbare t-rtems"
		tm_file=m68k/rtems.h
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m68k-*-rtemself*|m68k-*-rtems*)
		tmake_file="m68k/t-m68kbare t-rtems m68k/t-crtstuff"
		tm_file=m68k/rtemself.h
		extra_headers=math-68881.h
		float_format=m68k
		;;
	m88k-dg-dgux*)
		case $machine in
		  m88k-dg-dguxbcs*)
		    tm_file=m88k/dguxbcs.h
		    tmake_file=m88k/t-dguxbcs
		    ;;
		  *)
		    tm_file=m88k/dgux.h
		    tmake_file=m88k/t-dgux
		    ;;
		esac
		extra_parts="crtbegin.o bcscrtbegin.o crtend.o m88kdgux.ld"
		xmake_file=m88k/x-dgux
		if test x$gas = xyes
		then
			tmake_file=m88k/t-dgux-gas
		fi
		;;
	m88k-dolphin-sysv3*)
		tm_file=m88k/dolph.h
		extra_parts="crtbegin.o crtend.o"
		xm_file="m88k/xm-sysv3.h ${xm_file}"
		xmake_file=m88k/x-dolph
		if test x$gas = xyes
		then
			tmake_file=m88k/t-m88k-gas
		fi
		;;
	m88k-tektronix-sysv3)
		tm_file=m88k/tekXD88.h
		extra_parts="crtbegin.o crtend.o"
		xm_file="m88k/xm-sysv3.h ${xm_file}"
		xmake_file=m88k/x-tekXD88
		if test x$gas = xyes
		then
			tmake_file=m88k/t-m88k-gas
		fi
		;;
	m88k-*-aout*)
		tm_file=m88k/m88k-aout.h
		;;
	m88k-*-coff*)
		tm_file=m88k/m88k-coff.h
		tmake_file=m88k/t-bug
		;;
	m88k-*-luna*)
		tm_file=m88k/luna.h
		extra_parts="crtbegin.o crtend.o"
		if test x$gas = xyes
		then
			tmake_file=m88k/t-luna-gas
		else
			tmake_file=m88k/t-luna
		fi
		;;
	m88k-*-openbsd*)
		tmake_file="${tmake_file} m88k/t-luna-gas"
		;;
	m88k-*-sysv3*)
		tm_file=m88k/sysv3.h
		extra_parts="crtbegin.o crtend.o"
		xm_file="m88k/xm-sysv3.h ${xm_file}"
		xmake_file=m88k/x-sysv3
		if test x$gas = xyes
		then
			tmake_file=m88k/t-m88k-gas
		fi
		;;
	m88k-*-sysv4*)
		tm_file=m88k/sysv4.h
		extra_parts="crtbegin.o crtend.o"
		xmake_file=m88k/x-sysv4
		tmake_file=m88k/t-sysv4
		;;
	mcore-*-elf)
		tm_file=mcore/mcore-elf.h
		tmake_file=mcore/t-mcore
		;;
	mcore-*-pe*)
		tm_file=mcore/mcore-pe.h
		tmake_file=mcore/t-mcore-pe
		;;
	mips-sgi-irix6*)		# SGI System V.4., IRIX 6
		if test "x$gnu_ld" = xyes
		then
			tm_file="mips/iris6.h mips/iris6gld.h"
		else
			tm_file=mips/iris6.h
		fi
		tmake_file=mips/t-iris6
		xm_file=mips/xm-iris6.h
		xmake_file=mips/x-iris6
# 		if test x$enable_threads = xyes; then
#			thread_file='irix'
#		fi
		;;
	mips-wrs-vxworks)
		tm_file="mips/elf.h mips/vxworks.h"
 		tmake_file=mips/t-ecoff
 		gas=yes
		gnu_ld=yes
 		extra_parts="crtbegin.o crtend.o"
		thread_file='vxworks'
 		;;
	mips-sgi-irix5cross64)		# Irix5 host, Irix 6 target, cross64
		tm_file="mips/iris6.h mips/cross64.h"
		xm_defines=USG
		xm_file="mips/xm-iris5.h"
		xmake_file=mips/x-iris
		tmake_file=mips/t-cross64
		# See comment in mips/iris[56].h files.
		use_collect2=yes
# 		if test x$enable_threads = xyes; then
#			thread_file='irix'
#		fi
		;;
        mips-sni-sysv4)
		if test x$gas = xyes
		then
			if test x$stabs = xyes
			then
				tm_file=mips/iris5gdb.h
			else
				tm_file="mips/sni-svr4.h mips/sni-gas.h"
			fi
		else
			tm_file=mips/sni-svr4.h
		fi
		xm_defines=USG
                xmake_file=mips/x-sni-svr4
                tmake_file=mips/t-mips-gas
                if test x$gnu_ld != xyes
                then
                        use_collect2=yes
                fi
                ;;
	mips-sgi-irix5*)		# SGI System V.4., IRIX 5
		if test x$gas = xyes
		then
			tm_file="mips/iris5.h mips/iris5gas.h"
			if test x$stabs = xyes
			then
				tm_file="${tm_file} dbx.h"
			fi
		else
			tm_file=mips/iris5.h
		fi
		xm_defines=USG
		xm_file="mips/xm-iris5.h"
		xmake_file=mips/x-iris
		# mips-tfile doesn't work yet
		tmake_file=mips/t-mips-gas
		# See comment in mips/iris5.h file.
		use_collect2=yes
# 		if test x$enable_threads = xyes; then
#			thread_file='irix'
#		fi
		;;
	mips-sgi-irix4loser*)		# Mostly like a MIPS.
		tm_file="mips/iris4loser.h mips/iris3.h ${tm_file} mips/iris4.h"
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		xm_defines=USG
		xmake_file=mips/x-iris
		if test x$gas = xyes
		then
			tmake_file=mips/t-mips-gas
		else
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
# 		if test x$enable_threads = xyes; then
#			thread_file='irix'
#		fi
		;;
	mips-sgi-irix4*)		# Mostly like a MIPS.
		tm_file="mips/iris3.h ${tm_file} mips/iris4.h"
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		xm_defines=USG
		xmake_file=mips/x-iris
		if test x$gas = xyes
		then
			tmake_file=mips/t-mips-gas
		else
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
# 		if test x$enable_threads = xyes; then
#			thread_file='irix'
#		fi
		;;
	mips-sgi-*)			# Mostly like a MIPS.
		tm_file="mips/iris3.h ${tm_file}"
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		xm_defines=USG
		xmake_file=mips/x-iris3
		if test x$gas = xyes
		then
			tmake_file=mips/t-mips-gas
		else
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
		;;
	mips-dec-osfrose*)		# Decstation running OSF/1 reference port with OSF/rose.
		tm_file="mips/osfrose.h ${tm_file}"
		xmake_file=mips/x-osfrose
		tmake_file=mips/t-osfrose
		extra_objs=halfpic.o
		use_collect2=yes
		;;
	mips-dec-osf*)			# Decstation running OSF/1 as shipped by DIGITAL
		tm_file=mips/dec-osf1.h
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		xmake_file=mips/x-dec-osf1
		if test x$gas = xyes
		then
			tmake_file=mips/t-mips-gas
		else
			tmake_file=mips/t-ultrix
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
		;;
	mips-dec-bsd*)                  # Decstation running 4.4 BSD
              tm_file=mips/dec-bsd.h
	      if test x$gas = xyes
	      then
		   	tmake_file=mips/t-mips-gas
	      else
			tmake_file=mips/t-ultrix
			extra_passes="mips-tfile mips-tdump"
	      fi
	      if test x$gnu_ld != xyes
	      then
			use_collect2=yes
	      fi
	      ;;
	mipsel-*-netbsd* | mips-dec-netbsd*)    # Decstation running NetBSD
		tm_file=mips/netbsd.h
		# On NetBSD, the headers are already okay, except for math.h.
		tmake_file=t-netbsd
		;;
       mips*-*-linux*)                         # Linux MIPS, either endian.
		xmake_file=x-linux
               case $machine in
                       mipsel-*)  tm_file="mips/elfl.h mips/linux.h" ;;
                       *)         tm_file="mips/elf.h mips/linux.h" ;;
               esac
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		gnu_ld=yes
		gas=yes
 		if test x$enable_threads = xyes; then
 			thread_file='posix'
 		fi
		;;
	mips*el-*-openbsd*)	# mips little endian
		target_cpu_default="MASK_GAS|MASK_ABICALLS"
		;;
	mips*-*-openbsd*)		# mips big endian
		target_cpu_default="MASK_GAS|MASK_ABICALLS"
		tm_file="mips/openbsd-be.h ${tm_file}"
		;;
	mips-sony-bsd* | mips-sony-newsos*)	# Sony NEWS 3600 or risc/news.
		tm_file="mips/news4.h ${tm_file}"
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		if test x$gas = xyes
		then
			tmake_file=mips/t-mips-gas
		else
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
		xmake_file=mips/x-sony
		;;
	mips-sony-sysv*)		# Sony NEWS 3800 with NEWSOS5.0.
					# That is based on svr4.
		# t-svr4 is not right because this system doesn't use ELF.
		tm_file="mips/news5.h ${tm_file}"
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		xm_defines=USG
		if test x$gas = xyes
		then
			tmake_file=mips/t-mips-gas
		else
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
		;;
	mips-tandem-sysv4*)		# Tandem S2 running NonStop UX
		tm_file="mips/svr4-5.h mips/svr4-t.h"
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		xm_defines=USG
		xmake_file=mips/x-sysv
		if test x$gas = xyes
		then
			tmake_file=mips/t-mips-gas
			extra_parts="crtbegin.o crtend.o"
		else
			tmake_file=mips/t-mips
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
		;;
	mips-*-ultrix* | mips-dec-mach3)	# Decstation.
		tm_file="mips/ultrix.h ${tm_file}"
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		xmake_file=mips/x-ultrix
		if test x$gas = xyes
		then
			tmake_file=mips/t-mips-gas
		else
			tmake_file=mips/t-ultrix
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
	        ;;
changequote(,)dnl
	mips-*-riscos[56789]bsd*)
changequote([,])dnl
		tm_file=mips/bsd-5.h	# MIPS BSD 4.3, RISC-OS 5.0
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		if test x$gas = xyes
		then
			tmake_file=mips/t-bsd-gas
		else
			tmake_file=mips/t-bsd
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
	        ;;
changequote(,)dnl
	mips-*-bsd* | mips-*-riscosbsd* | mips-*-riscos[1234]bsd*)
changequote([,])dnl
		tm_file="mips/bsd-4.h ${tm_file}" # MIPS BSD 4.3, RISC-OS 4.0
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		if test x$gas = xyes
		then
			tmake_file=mips/t-bsd-gas
		else
			tmake_file=mips/t-bsd
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
	        ;;
changequote(,)dnl
	mips-*-riscos[56789]sysv4*)
changequote([,])dnl
		tm_file=mips/svr4-5.h	# MIPS System V.4., RISC-OS 5.0
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		xmake_file=mips/x-sysv
		if test x$gas = xyes
		then
			tmake_file=mips/t-svr4-gas
		else
			tmake_file=mips/t-svr4
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
		;;
changequote(,)dnl
	mips-*-sysv4* | mips-*-riscos[1234]sysv4* | mips-*-riscossysv4*)
changequote([,])dnl
		tm_file="mips/svr4-4.h ${tm_file}"
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		xm_defines=USG
		xmake_file=mips/x-sysv
		if test x$gas = xyes
		then
			tmake_file=mips/t-svr4-gas
		else
			tmake_file=mips/t-svr4
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
		;;
changequote(,)dnl
	mips-*-riscos[56789]sysv*)
changequote([,])dnl
		tm_file=mips/svr3-5.h	# MIPS System V.3, RISC-OS 5.0
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		xm_defines=USG
		xmake_file=mips/x-sysv
		if test x$gas = xyes
		then
			tmake_file=mips/t-svr3-gas
		else
			tmake_file=mips/t-svr3
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
		;;
	mips-*-sysv* | mips-*-riscos*sysv*)
		tm_file="mips/svr3-4.h ${tm_file}"
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		xm_defines=USG
		xmake_file=mips/x-sysv
		if test x$gas = xyes
		then
			tmake_file=mips/t-svr3-gas
		else
			tmake_file=mips/t-svr3
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
		;;
changequote(,)dnl
	mips-*-riscos[56789]*)		# Default MIPS RISC-OS 5.0.
changequote([,])dnl
		tm_file=mips/mips-5.h
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		if test x$gas = xyes
		then
			tmake_file=mips/t-mips-gas
		else
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
		;;
	mips-*-gnu*)
		;;
	mipsel-*-ecoff*)
		tm_file=mips/ecoffl.h
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		tmake_file=mips/t-ecoff
		;;
	mips-*-ecoff*)
		tm_file="gofast.h mips/ecoff.h"
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		tmake_file=mips/t-ecoff
		;;
	mipsel-*-elf*)
		tm_file="mips/elfl.h"
		tmake_file=mips/t-elf
		;;
	mips-*-elf*)
		tm_file="mips/elf.h"
		tmake_file=mips/t-elf
		;;
	mips64el-*-elf*)
		tm_file="mips/elfl64.h"
		tmake_file=mips/t-elf
		;;
	mips64orionel-*-elf*)
		tm_file="mips/elforion.h mips/elfl64.h"
		tmake_file=mips/t-elf
		;;
	mips64-*-elf*)
		tm_file="mips/elf64.h"
		tmake_file=mips/t-elf
		;;
	mips64orion-*-elf*)
		tm_file="mips/elforion.h mips/elf64.h"
		tmake_file=mips/t-elf
		;;
	mips64orion-*-rtems*)
		tm_file="mips/elforion.h mips/elf64.h mips/rtems64.h"
		tmake_file="mips/t-elf t-rtems"
		;;
	mipstx39el-*-elf*)
		tm_file="mips/r3900.h mips/elfl.h mips/abi64.h"
		tmake_file=mips/t-r3900
		;;
	mipstx39-*-elf*)
		tm_file="mips/r3900.h mips/elf.h mips/abi64.h"
		tmake_file=mips/t-r3900
		;;
	mips-*-*)				# Default MIPS RISC-OS 4.0.
		if test x$stabs = xyes; then
			tm_file="${tm_file} dbx.h"
		fi
		if test x$gas = xyes
		then
			tmake_file=mips/t-mips-gas
		else
			extra_passes="mips-tfile mips-tdump"
		fi
		if test x$gnu_ld != xyes
		then
			use_collect2=yes
		fi
		;;
	mn10200-*-*)
		float_format=i32
		cpu_type=mn10200
		tm_file="mn10200/mn10200.h"
		if test x$stabs = xyes
		then
			tm_file="${tm_file} dbx.h"
		fi
		use_collect2=no
		;;
	mn10300-*-*)
		cpu_type=mn10300
		tm_file="mn10300/mn10300.h"
		if test x$stabs = xyes
		then
			tm_file="${tm_file} dbx.h"
		fi
		use_collect2=no
		;;
	ns32k-encore-bsd*)
		tm_file=ns32k/encore.h
		use_collect2=yes
		;;
	ns32k-sequent-bsd*)
		tm_file=ns32k/sequent.h
		use_collect2=yes
		;;
	ns32k-tek6100-bsd*)
		tm_file=ns32k/tek6100.h
		use_collect2=yes
		;;
	ns32k-tek6200-bsd*)
		tm_file=ns32k/tek6200.h
		use_collect2=yes
		;;
# This has not been updated to GCC 2.
#	ns32k-ns-genix*)
#		xm_defines=USG
#		xmake_file=ns32k/x-genix
#		tm_file=ns32k/genix.h
#		use_collect2=yes
#		;;
	ns32k-merlin-*)
		tm_file=ns32k/merlin.h
		use_collect2=yes
		;;
	ns32k-pc532-mach*)
		tm_file=ns32k/pc532-mach.h
		use_collect2=yes
		;;
	ns32k-pc532-minix*)
		tm_file=ns32k/pc532-min.h
		xm_file="ns32k/xm-pc532-min.h ${xm-file}"
		xm_defines=USG
		use_collect2=yes
		;;
	ns32k-*-netbsd*)
		tm_file=ns32k/netbsd.h
		xm_file="ns32k/xm-netbsd.h ${xm_file}"
		# On NetBSD, the headers are already okay, except for math.h.
		tmake_file=t-netbsd
		use_collect2=yes
		;;
        pdp11-*-bsd)
		tm_file="${tm_file} pdp11/2bsd.h"
                ;;
        pdp11-*-*)
		;;
        avr-*-*)
		;;
	ns32k-*-openbsd*)
		# Nothing special
		;;
# This has not been updated to GCC 2.
#	pyramid-*-*)
#		cpu_type=pyr
#		xmake_file=pyr/x-pyr
#		use_collect2=yes
#		;;

  	pj*-linux*)
		tm_file="svr4.h pj/linux.h ${tm_file}"
 		;;
  	pj-*)
 		;;
  	pjl-*)
		tm_file="svr4.h pj/pjl.h ${tm_file}"
 		;;

	romp-*-aos*)
		use_collect2=yes
		;;
	romp-*-mach*)
		xmake_file=romp/x-mach
		use_collect2=yes
		;;
	romp-*-openbsd*)
		# Nothing special
		;;
	powerpc-*-openbsd*)
		tmake_file="${tmake_file} rs6000/t-rs6000 rs6000/t-openbsd"
		;;
	powerpc-*-beos*)
		cpu_type=rs6000
		tm_file=rs6000/beos.h
		xm_file=rs6000/xm-beos.h
		tmake_file=rs6000/t-beos
		xmake_file=rs6000/x-beos
		;;
	powerpc-*-sysv* | powerpc-*-elf*)
		tm_file=rs6000/sysv4.h
		xm_file="rs6000/xm-sysv4.h"
		xm_defines="USG POSIX"
		extra_headers=ppc-asm.h
		if test x$gas = xyes
		then
			tmake_file="rs6000/t-ppcos rs6000/t-ppccomm"
		else
			tmake_file="rs6000/t-ppc rs6000/t-ppccomm"
		fi
		xmake_file=rs6000/x-sysv4
		;;
	powerpc-*-eabiaix*)
		tm_file=rs6000/eabiaix.h
		tmake_file="rs6000/t-ppcgas rs6000/t-ppccomm"
		extra_headers=ppc-asm.h
		;;
	powerpc-*-eabisim*)
		tm_file=rs6000/eabisim.h
		tmake_file="rs6000/t-ppcgas rs6000/t-ppccomm"
		extra_headers=ppc-asm.h
		;;
	powerpc-*-eabi*)
		tm_file=rs6000/eabi.h
		if test x$gas = xyes
		then
			tmake_file="rs6000/t-ppcgas rs6000/t-ppccomm"
		else
			tmake_file="rs6000/t-ppc rs6000/t-ppccomm"
		fi
		extra_headers=ppc-asm.h
		;;
	powerpc-*-rtems*)
		tm_file=rs6000/rtems.h
		if test x$gas = xyes
		then
		     tmake_file="rs6000/t-ppcgas t-rtems rs6000/t-ppccomm"
		else
		     tmake_file="rs6000/t-ppc t-rtems rs6000/t-ppccomm"
		fi
		extra_headers=ppc-asm.h
		;;
	powerpc-*-linux-gnulibc1)
		tm_file=rs6000/linux.h
		xm_file=rs6000/xm-sysv4.h
		out_file=rs6000/rs6000.c
		if test x$gas = xyes
		then
			tmake_file="rs6000/t-ppcos t-linux t-linux-gnulibc1 rs6000/t-ppccomm"
		else
			tmake_file="rs6000/t-ppc t-linux t-linux-gnulibc1 rs6000/t-ppccomm"
		fi
		xmake_file=x-linux
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		extra_headers=ppc-asm.h
		if test x$enable_threads = xyes; then
			thread_file='posix'
		fi
		;;
	powerpc-*-linux-gnu*)
		tm_file=rs6000/linux.h
		xm_file="rs6000/xm-sysv4.h"
		xm_defines="USG ${xm_defines}"
		out_file=rs6000/rs6000.c
		if test x$gas = xyes
		then
			tmake_file="rs6000/t-ppcos t-linux rs6000/t-ppccomm"
		else
			tmake_file="rs6000/t-ppc t-linux rs6000/t-ppccomm"
		fi
		xmake_file=x-linux
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		extra_headers=ppc-asm.h
		if test x$enable_threads = xyes; then
			thread_file='posix'
		fi
		;;
        powerpc-wrs-vxworks*)
                cpu_type=rs6000
		xm_file="rs6000/xm-sysv4.h"
		xm_defines="USG POSIX"
                tm_file=rs6000/vxppc.h
                tmake_file="rs6000/t-ppcgas rs6000/t-ppccomm"
		extra_headers=ppc-asm.h
		thread_file='vxworks'
                ;;
        powerpcle-wrs-vxworks*)
                cpu_type=rs6000
		xm_file="rs6000/xm-sysv4.h"
		xm_defines="USG POSIX"
                tm_file=rs6000/vxppcle.h
                tmake_file="rs6000/t-ppcgas rs6000/t-ppccomm"
		extra_headers=ppc-asm.h
		thread_file='vxworks'
                ;;
	powerpcle-*-sysv* | powerpcle-*-elf*)
		tm_file=rs6000/sysv4le.h
		xm_file="rs6000/xm-sysv4.h"
		xm_defines="USG POSIX"
		if test x$gas = xyes
		then
			tmake_file="rs6000/t-ppcos rs6000/t-ppccomm"
		else
			tmake_file="rs6000/t-ppc rs6000/t-ppccomm"
		fi
		xmake_file=rs6000/x-sysv4
		extra_headers=ppc-asm.h
		;;
	powerpcle-*-eabisim*)
		tm_file=rs6000/eabilesim.h
		tmake_file="rs6000/t-ppcgas rs6000/t-ppccomm"
		extra_headers=ppc-asm.h
		;;
	powerpcle-*-eabi*)
		tm_file=rs6000/eabile.h
		if test x$gas = xyes
		then
			tmake_file="rs6000/t-ppcgas rs6000/t-ppccomm"
		else
			tmake_file="rs6000/t-ppc rs6000/t-ppccomm"
		fi
		extra_headers=ppc-asm.h
		;;
	powerpcle-*-solaris2*)
		tm_file=rs6000/sol2.h
		xm_file="rs6000/xm-sysv4.h"
		xm_defines="USG POSIX"
		if test x$gas = xyes
		then
			tmake_file="rs6000/t-ppcos rs6000/t-ppccomm"
		else
			tmake_file="rs6000/t-ppc rs6000/t-ppccomm"
		fi
		xmake_file=rs6000/x-sysv4
		extra_headers=ppc-asm.h
		;;
changequote(,)dnl
	rs6000-ibm-aix3.[01]*)
changequote([,])dnl
		tm_file=rs6000/aix31.h
		xmake_file=rs6000/x-aix31
		float_format=none
		use_collect2=yes
		;;
changequote(,)dnl
	rs6000-ibm-aix3.2.[456789]* | powerpc-ibm-aix3.2.[456789]*)
changequote([,])dnl
		tm_file=rs6000/aix3newas.h
		if test x$host != x$target
		then
			tmake_file=rs6000/t-xnewas
		else
			tmake_file=rs6000/t-newas
		fi
		float_format=none
		use_collect2=yes
		;;
changequote(,)dnl
	rs6000-ibm-aix4.[12]* | powerpc-ibm-aix4.[12]*)
changequote([,])dnl
		tm_file=rs6000/aix41.h
		if test x$host != x$target
		then
			tmake_file=rs6000/t-xnewas
		else
			tmake_file="rs6000/t-newas rs6000/t-aix41"
		fi
		xmake_file=rs6000/x-aix41
		float_format=none
		use_collect2=yes
		;;
changequote(,)dnl
	rs6000-ibm-aix4.[3456789]* | powerpc-ibm-aix4.[3456789]*)
changequote([,])dnl
		tm_file=rs6000/aix43.h
		tmake_file=rs6000/t-aix43
		xmake_file=rs6000/x-aix41
		float_format=none
		use_collect2=yes
		;;
changequote(,)dnl
	rs6000-ibm-aix[56789].* | powerpc-ibm-aix[56789].*)
changequote([,])dnl
		tm_file=rs6000/aix43.h
		tmake_file=rs6000/t-aix43
		xmake_file=rs6000/x-aix41
		float_format=none
		use_collect2=yes
		;;
	rs6000-ibm-aix*)
		float_format=none
		use_collect2=yes
		;;
	rs6000-bull-bosx)
		float_format=none
		use_collect2=yes
		;;
	rs6000-*-mach*)
		tm_file=rs6000/mach.h
		xm_file="${xm_file} rs6000/xm-mach.h"
		xmake_file=rs6000/x-mach
		use_collect2=yes
		;;
	rs6000-*-lynxos*)
		tm_file=rs6000/lynx.h
		xm_file=rs6000/xm-lynx.h
		tmake_file=rs6000/t-rs6000
		xmake_file=rs6000/x-lynx
		use_collect2=yes
		;;
	sh-*-elf*)
		tm_file=sh/elf.h
		float_format=sh
		;;
	sh-*-rtemself*)
		tmake_file="sh/t-sh t-rtems"
		tm_file=sh/rtemself.h
		float_format=sh
		;;
	sh-*-rtems*)
		tmake_file="sh/t-sh t-rtems"
		tm_file=sh/rtems.h
		float_format=sh
		;;
	sh-*-*)
		float_format=sh
		;;
	sparc-tti-*)
		tm_file=sparc/pbd.h
		xm_file="xm-alloca.h ${xm_file}"
		xm_defines=USG
		;;
	sparc-wrs-vxworks* | sparclite-wrs-vxworks*)
		tm_file=sparc/vxsparc.h
		tmake_file=sparc/t-vxsparc
		use_collect2=yes
		thread_file='vxworks'
		;;
	sparc-*-aout*)
		tmake_file=sparc/t-sparcbare
		tm_file="sparc/aout.h libgloss.h"
		;;
	sparc-*-netbsd*)
		tm_file=sparc/netbsd.h
		tmake_file=t-netbsd
		use_collect2=yes
		;;
	sparc-*-openbsd*)
		# we need collect2 until our bug is fixed...
		use_collect2=yes
		;;
	sparc-*-bsd*)
		tm_file=sparc/bsd.h
		;;
	sparc-*-elf*)
		tm_file=sparc/elf.h
		tmake_file=sparc/t-elf
		extra_parts="crti.o crtn.o crtbegin.o crtend.o"
		#float_format=i128
		float_format=i64
		;;
	sparc-*-linux-gnuaout*)		# Sparc's running GNU/Linux, a.out
		xm_file="${xm_file} sparc/xm-linux.h"
		tm_file=sparc/linux-aout.h
		xmake_file=x-linux
		gnu_ld=yes
		;;
	sparc-*-linux-gnulibc1*)	# Sparc's running GNU/Linux, libc5
		xm_file="${xm_file} sparc/xm-linux.h"
		xmake_file=x-linux
		tm_file=sparc/linux.h
		tmake_file="t-linux t-linux-gnulibc1"
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		gnu_ld=yes
		float_format=sparc
		;;
	sparc-*-linux-gnu*)		# Sparc's running GNU/Linux, libc6
		xm_file="${xm_file} sparc/xm-linux.h"
		xmake_file=x-linux
		tm_file=sparc/linux.h
		tmake_file="t-linux"
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		gnu_ld=yes
 		if test x$enable_threads = xyes; then
 			thread_file='posix'
 		fi
		float_format=sparc
		;;
	sparc-*-lynxos*)
		if test x$gas = xyes
		then
			tm_file=sparc/lynx.h
		else
			tm_file=sparc/lynx-ng.h
		fi
		xm_file=sparc/xm-lynx.h
		tmake_file=sparc/t-sunos41
		xmake_file=x-lynx
		;;
	sparc-*-rtemsaout*)
		tmake_file="sparc/t-sparcbare t-rtems"
		tm_file=sparc/rtems.h
		;;
	sparc-*-rtems*|sparc-*-rtemself*)
		tm_file="sparc/rtemself.h"
		tmake_file="sparc/t-elf t-rtems"
		extra_parts="crti.o crtn.o crtbegin.o crtend.o"
		#float_format=i128
		float_format=i64
		;;
	sparcv9-*-solaris2*)
		if test x$gnu_ld = xyes
		then
			tm_file=sparc/sol2-64.h
		else
			tm_file=sparc/sol2-sld-64.h
		fi
		xm_file="sparc/xm-sysv4-64.h sparc/xm-sol2.h"
		xm_defines="USG POSIX"
		tmake_file="sparc/t-sol2 sparc/t-sol2-64"
		xmake_file=sparc/x-sysv4
		extra_parts="crt1.o crti.o crtn.o gcrt1.o crtbegin.o crtend.o"
		float_format=none
		if test x${enable_threads} = x ; then
		    enable_threads=$have_pthread_h
		    if test x${enable_threads} = x ; then
			enable_threads=$have_thread_h
		    fi
		fi
		if test x${enable_threads} = xyes ; then
		    if test x${have_pthread_h} = xyes ; then
			thread_file='posix'
		    else
			thread_file='solaris'
		    fi
		fi
		;;
        sparc-hal-solaris2*)
                xm_file="sparc/xm-sysv4.h sparc/xm-sol2.h"
                xm_defines="USG POSIX"
                tm_file="sparc/sol2.h sparc/hal.h"
                tmake_file="sparc/t-halos sparc/t-sol2"
                xmake_file=sparc/x-sysv4
                extra_parts="crt1.o crti.o crtn.o gmon.o crtbegin.o crtend.o"
                case $machine in
                *-*-solaris2.[0-4])
                        float_format=i128
                ;;
                *)
                        float_format=none
                        ;;
                esac
		thread_file='solaris'
                ;;
	sparc-*-solaris2*)
		if test x$gnu_ld = xyes
		then
			tm_file=sparc/sol2.h
		else
			tm_file=sparc/sol2-sld.h
		fi
		xm_file="sparc/xm-sysv4.h sparc/xm-sol2.h"
		xm_defines="USG POSIX"
		tmake_file=sparc/t-sol2
		xmake_file=sparc/x-sysv4
		extra_parts="crt1.o crti.o crtn.o gcrt1.o gmon.o crtbegin.o crtend.o"
		case $machine in
changequote(,)dnl
		*-*-solaris2.[0-6] | *-*-solaris2.[0-6].*) ;;
changequote([,])dnl
		*-*-solaris2*)
			if test x$gnu_ld = xyes
			then
				tm_file=sparc/sol2-64.h
			else
				tm_file=sparc/sol2-sld-64.h
			fi
			tmake_file="$tmake_file sparc/t-sol2-64"
			;;
		esac
		case $machine in
changequote(,)dnl
		*-*-solaris2.[0-4])
changequote([,])dnl
			float_format=i128
			;;
		*)
			float_format=none
			;;
		esac
		if test x${enable_threads} = x; then
		    enable_threads=$have_pthread_h
		    if test x${enable_threads} = x; then
			enable_threads=$have_thread_h
		    fi
		fi
		if test x${enable_threads} = xyes; then
		    if test x${have_pthread_h} = xyes; then
			thread_file='posix'
		    else
			thread_file='solaris'
		    fi
		fi
		;;
	sparc-*-sunos4.0*)
		tm_file=sparc/sunos4.h
		tmake_file=sparc/t-sunos40
		use_collect2=yes
		;;
	sparc-*-sunos4*)
		tm_file=sparc/sunos4.h
		tmake_file=sparc/t-sunos41
		use_collect2=yes
		if test x$gas = xyes; then
			tm_file="${tm_file} sparc/sun4gas.h"
		fi
		;;
	sparc-*-sunos3*)
		tm_file=sparc/sun4o3.h
		use_collect2=yes
		;;
	sparc-*-sysv4*)
		tm_file=sparc/sysv4.h
		xm_file="sparc/xm-sysv4.h"
		xm_defines="USG POSIX"
		tmake_file=t-svr4
		xmake_file=sparc/x-sysv4
		extra_parts="crtbegin.o crtend.o"
		;;
	sparc-*-vxsim*)
		xm_file="sparc/xm-sysv4.h sparc/xm-sol2.h"
		xm_defines="USG POSIX"
		tm_file=sparc/vxsim.h
		tmake_file=sparc/t-vxsparc
		xmake_file=sparc/x-sysv4
		;;
	sparclet-*-aout*)
		tm_file="sparc/splet.h libgloss.h"
		tmake_file=sparc/t-splet
		;;
	sparclite-*-coff*)
		tm_file="sparc/litecoff.h libgloss.h"
		tmake_file=sparc/t-sparclite
		;;
	sparclite-*-aout*)
		tm_file="sparc/lite.h aoutos.h libgloss.h"
		tmake_file=sparc/t-sparclite
		;;
	sparclite-*-elf*)
		tm_file="sparc/liteelf.h"
		tmake_file=sparc/t-sparclite
                extra_parts="crtbegin.o crtend.o"
		;;
	sparc86x-*-aout*)
		tm_file="sparc/sp86x-aout.h aoutos.h libgloss.h"
		tmake_file=sparc/t-sp86x
		;;
	sparc86x-*-elf*)	
		tm_file="sparc/sp86x-elf.h"
		tmake_file=sparc/t-sp86x
                extra_parts="crtbegin.o crtend.o"
		;;
	sparc64-*-aout*)
		tmake_file=sparc/t-sp64
		tm_file=sparc/sp64-aout.h
		;;
	sparc64-*-elf*)
		tmake_file=sparc/t-sp64
		tm_file=sparc/sp64-elf.h
		extra_parts="crtbegin.o crtend.o"
		;;
	sparc64-*-linux*)		# 64-bit Sparc's running GNU/Linux
		tmake_file="t-linux sparc/t-linux64"
		xm_file="sparc/xm-sp64.h sparc/xm-linux.h"
		tm_file=sparc/linux64.h
		xmake_file=x-linux
		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
		gnu_ld=yes
 		if test x$enable_threads = xyes; then
 			thread_file='posix'
 		fi
		float_format=sparc
		;;
# This hasn't been upgraded to GCC 2.
#	tahoe-harris-*)			# Harris tahoe, using COFF.
#		tm_file=tahoe/harris.h
#		;;
#	tahoe-*-bsd*)			# tahoe running BSD
#		;;
	thumb-*-coff* | thumbel-*-coff*)
		tm_file=arm/tcoff.h
		out_file=arm/thumb.c
		xm_file=arm/xm-thumb.h
		md_file=arm/thumb.md
		tmake_file=arm/t-thumb
		tm_p_file=arm/thumb-protos.h
		;;
	thumb-*-elf* | thumbel-*-elf*)
		tm_file=arm/telf.h
		out_file=arm/thumb.c
		xm_file=arm/xm-thumb.h
		md_file=arm/thumb.md
		tmake_file=arm/t-thumb-elf
		tm_p_file=arm/thumb-protos.h
		;;
	thumb-*-linux-gnu*)
		tm_file=arm/linux-telf.h
		out_file=arm/thumb.c
		xm_file=arm/xm-thumb.h
		md_file=arm/thumb.md
		tmake_file=arm/t-thumb-linux
		tm_p_file=arm/thumb-protos.h
		;;
	thumb-*-uclinux*)
		tm_file=arm/uclinux-telf.h
		out_file=arm/thumb.c
		md_file=arm/thumb.md
		tmake_file=arm/t-thumb-linux
		xm_file=arm/xm-thumb.h
		tm_p_file=arm/thumb-protos.h
		;;
	thumb-wrs-vxworks)
		tm_file=arm/tcoff.h
		out_file=arm/thumb.c
		xm_file=arm/xm-thumb.h
		md_file=arm/thumb.md
		tmake_file=arm/t-thumb
		thread_file='vxworks'
		tm_p_file=arm/thumb-protos.h
		;;
	thumb-*-pe)
		tm_file=arm/tpe.h
		out_file=arm/thumb.c
		xm_file=arm/xm-thumb.h
		md_file=arm/thumb.md
		tmake_file=arm/t-pe-thumb
		extra_objs=pe.o
		tm_p_file=arm/thumb-protos.h
		;;
# This hasn't been upgraded to GCC 2.
#	tron-*-*)
#		cpu_type=gmicro
#		use_collect2=yes
#		;;
	v850-*-rtems*)
		cpu_type=v850
		tm_file="v850/rtems.h"
		xm_file="v850/xm-v850.h"
		tmake_file="v850/t-v850 t-rtems"
		if test x$stabs = xyes
		then
			tm_file="${tm_file} dbx.h"
		fi
		use_collect2=no
		;;
	v850-*-*)
		target_cpu_default="TARGET_CPU_generic"
		cpu_type=v850
		tm_file="v850/v850.h"
		xm_file="v850/xm-v850.h"
		tmake_file=v850/t-v850
		if test x$stabs = xyes
		then
			tm_file="${tm_file} dbx.h"
		fi
		use_collect2=no
		;;
	vax-*-bsd*)			# vaxen running BSD
		use_collect2=yes
		float_format=vax
		;;
	vax-*-sysv*)			# vaxen running system V
		tm_file="${tm_file} vax/vaxv.h"
		xm_defines=USG
		float_format=vax
		;;
	vax-*-netbsd*)
		tm_file="${tm_file} netbsd.h vax/netbsd.h"
		tmake_file=t-netbsd
		float_format=vax
		use_collect2=yes
		;;
	vax-*-openbsd*)
		tmake_file="${tmake_file} vax/t-openbsd"
		;;
	vax-*-ultrix*)			# vaxen running ultrix
		tm_file="${tm_file} vax/ultrix.h"
		use_collect2=yes
		float_format=vax
		;;
	vax-*-vms*)			# vaxen running VMS
		xm_file=vax/xm-vms.h
		tm_file=vax/vms.h
		float_format=vax
		;;
	vax-*-*)			# vax default entry
		float_format=vax
		;;
	we32k-att-sysv*)
		xm_file="${xm_file} xm-svr3"
		use_collect2=yes
		;;
	*)
		echo "Configuration $machine not supported" 1>&2
		exit 1
		;;
	esac

	case $machine in
	*-*-linux-gnu*)
	        ;; # Existing GNU/Linux systems do not use the GNU setup.
	*-*-gnu*)
		# On the GNU system, the setup is just about the same on
		# each different CPU.  The specific machines that GNU
		# supports are matched above and just set $cpu_type.
		xm_file="xm-gnu.h ${xm_file}"
		tm_file=${cpu_type}/gnu.h
		extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
		# GNU always uses ELF.
		elf=yes
		# GNU tools are the only tools.
		gnu_ld=yes
		gas=yes
		xmake_file=x-linux	# These details are the same as Linux.
		tmake_file=t-gnu	# These are not.
		;;
	*-*-sysv4*)
		xmake_try_sysv=x-sysv
		install_headers_dir=install-headers-cpio
		;;
	*-*-sysv*)
		install_headers_dir=install-headers-cpio
		;;
	esac

	# Distinguish i[34567]86
	# Also, do not run mips-tfile on MIPS if using gas.
	# Process --with-cpu= for PowerPC/rs6000
	target_cpu_default2=
	case $machine in
	i486-*-*)
		target_cpu_default2=1
		;;
	i586-*-*)
		case $target_alias in
			k6-*)
				target_cpu_default2=4
				;;
			*)
				target_cpu_default2=2
				;;
		esac
		;;
	i686-*-* | i786-*-*)
		target_cpu_default2=3
		;;
	alpha*-*-*)
		case $machine in
changequote(,)dnl
			alphaev6[78]*)
changequote([,])dnl
				target_cpu_default2="MASK_CPU_EV6|MASK_BWX|MASK_MAX|MASK_FIX|MASK_CIX"
				;;
			alphaev6*)
				target_cpu_default2="MASK_CPU_EV6|MASK_BWX|MASK_MAX|MASK_FIX"
				;;
			alphapca56*)
				target_cpu_default2="MASK_CPU_EV5|MASK_BWX|MASK_MAX"
				;;
			alphaev56*)
				target_cpu_default2="MASK_CPU_EV5|MASK_BWX"
				;;
			alphaev5*)
				target_cpu_default2="MASK_CPU_EV5"
				;;
		esac
				
		if test x$gas = xyes
		then
			if test "$target_cpu_default2" = ""
			then
				target_cpu_default2="MASK_GAS"
			else
				target_cpu_default2="${target_cpu_default2}|MASK_GAS"
			fi
		fi
		;;
	arm*-*-*)
		case "x$with_cpu" in
			x)
				# The most generic
				target_cpu_default2="TARGET_CPU_generic"
				;;

			# Distinguish cores, and major variants
			# arm7m doesn't exist, but D & I don't affect code
changequote(,)dnl
			xarm[23678] | xarm250 | xarm[67][01]0 \
			| xarm7m | xarm7dm | xarm7dmi | xarm7tdmi \
			| xarm7100 | xarm7500 | xarm7500fe | xarm810 \
			| xstrongarm | xstrongarm110 | xstrongarm1100)
changequote([,])dnl
				target_cpu_default2="TARGET_CPU_$with_cpu"
				;;

			xyes | xno)
				echo "--with-cpu must be passed a value" 1>&2
				exit 1
				;;

			*)
				if test x$pass2done = xyes
				then
					echo "Unknown cpu used with --with-cpu=$with_cpu" 1>&2
					exit 1
				fi
				;;
		esac
		;;

	mips*-*-ecoff* | mips*-*-elf*)
		if test x$gas = xyes
		then
			if test x$gnu_ld = xyes
			then
				target_cpu_default2=20
			else
				target_cpu_default2=16
			fi
		fi
		;;
	mips*-*-*)
		if test x$gas = xyes
		then
			target_cpu_default2=16
		fi
		;;
	powerpc*-*-* | rs6000-*-*)
		case "x$with_cpu" in
			x)
				;;

			xcommon | xpower | xpower2 | xpowerpc | xrios \
			  | xrios1 | xrios2 | xrsc | xrsc1 \
			  | x601 | x602 | x603 | x603e | x604 | x604e | x620 \
			  | xec603e | x740 | x750 | x401 \
			  | x403 | x505 | x801 | x821 | x823 | x860)
				target_cpu_default2="\"$with_cpu\""
				;;

			xyes | xno)
				echo "--with-cpu must be passed a value" 1>&2
				exit 1
				;;

			*)
				if test x$pass2done = xyes
				then
					echo "Unknown cpu used with --with-cpu=$with_cpu" 1>&2
					exit 1
				fi
				;;
		esac
		;;
	sparc*-*-*)
		case ".$with_cpu" in
			.)
				target_cpu_default2=TARGET_CPU_"`echo $machine | sed 's/-.*$//'`"
				;;
			.supersparc | .hypersparc | .ultrasparc | .v7 | .v8 | .v9)
				target_cpu_default2="TARGET_CPU_$with_cpu"
				;;
			*)
				if test x$pass2done = xyes
				then
					echo "Unknown cpu used with --with-cpu=$with_cpu" 1>&2
					exit 1
				fi
				;;
		esac
		;;
	esac

	if test "$target_cpu_default2" != ""
	then
		if test "$target_cpu_default" != ""
		then
			target_cpu_default="(${target_cpu_default}|${target_cpu_default2})"
		else
			target_cpu_default=$target_cpu_default2
		fi
	fi

	# No need for collect2 if we have the GNU linker.
	# Actually, there is now; GNU ld doesn't handle the EH info or
	# collecting for shared libraries.
	#case x$gnu_ld in
	#xyes)
	#	use_collect2=
	#	;;
	#esac

# Save data on machine being used to compile GCC in build_xm_file.
# Save data on host machine in vars host_xm_file and host_xmake_file.
	if test x$pass1done = x
	then
		if test x"$xm_file" = x
		then build_xm_file=$cpu_type/xm-$cpu_type.h
		else build_xm_file=$xm_file
		fi
		build_xm_defines=$xm_defines
		build_install_headers_dir=$install_headers_dir
		build_exeext=$exeext
		pass1done=yes
	else
		if test x$pass2done = x
		then
			if test x"$xm_file" = x
			then host_xm_file=$cpu_type/xm-$cpu_type.h
			else host_xm_file=$xm_file
			fi
			host_xm_defines=$xm_defines
			if test x"$xmake_file" = x
			then xmake_file=$cpu_type/x-$cpu_type
			fi
			host_xmake_file="$xmake_file"
			host_truncate_target=$truncate_target
			host_extra_gcc_objs=$extra_gcc_objs
			host_extra_objs=$extra_host_objs
			host_exeext=$exeext
			pass2done=yes
		fi
	fi
done

extra_objs="${host_extra_objs} ${extra_objs}"

# Default the target-machine variables that were not explicitly set.
if test x"$tm_file" = x
then tm_file=$cpu_type/$cpu_type.h; fi

if test x$extra_headers = x
then extra_headers=; fi

if test x"$xm_file" = x
then xm_file=$cpu_type/xm-$cpu_type.h; fi

if test x$md_file = x
then md_file=$cpu_type/$cpu_type.md; fi

if test x$out_file = x
then out_file=$cpu_type/$cpu_type.c; fi

if test x"$tmake_file" = x
then tmake_file=$cpu_type/t-$cpu_type
fi

if test x"$dwarf2" = xyes
then tm_file="$tm_file tm-dwarf2.h"
fi

if test x$float_format = x
then float_format=i64
fi

if test $float_format = none
then float_h_file=Makefile.in
else float_h_file=float-$float_format.h
fi

# Handle cpp installation.
if test x$enable_cpp != xno
then
  tmake_file="$tmake_file t-install-cpp"
fi

# Say what files are being used for the output code and MD file.
echo "Using \`$srcdir/config/$out_file' to output insns."
echo "Using \`$srcdir/config/$md_file' as machine description file."

count=a
for f in $tm_file; do
	count=${count}x
done
if test $count = ax; then
	echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
else
	echo "Using the following target machine macro files:"
	for f in $tm_file; do
		echo "	$srcdir/config/$f"
	done
fi

count=a
for f in $host_xm_file; do
	count=${count}x
done
if test $count = ax; then
	echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
else
	echo "Using the following host machine macro files:"
	for f in $host_xm_file; do
		echo "	$srcdir/config/$f"
	done
fi

if test "$host_xm_file" != "$build_xm_file"; then
	count=a
	for f in $build_xm_file; do
		count=${count}x
	done
	if test $count = ax; then
		echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
	else
		echo "Using the following build machine macro files:"
		for f in $build_xm_file; do
			echo "	$srcdir/config/$f"
		done
	fi
fi

if test x$thread_file = x; then
	if test x$target_thread_file != x; then
		thread_file=$target_thread_file
	else
		thread_file='single'
	fi
fi

# Set up the header files.
# $links is the list of header files to create.
# $vars is the list of shell variables with file names to include.
# auto-host.h is the file containing items generated by autoconf and is
# the first file included by config.h.
null_defines=
host_xm_file="auto-host.h gansidecl.h ${host_xm_file} hwint.h"

# If host=build, it is correct to have hconfig include auto-host.h
# as well.  If host!=build, we are in error and need to do more 
# work to find out the build config parameters.
if test x$host = x$build
then
	build_xm_file="auto-host.h gansidecl.h ${build_xm_file} hwint.h"
else
	# We create a subdir, then run autoconf in the subdir.
	# To prevent recursion we set host and build for the new
	# invocation of configure to the build for this invocation
	# of configure. 
	tempdir=build.$$
	rm -rf $tempdir
	mkdir $tempdir
	cd $tempdir
	case ${srcdir} in
	/*) realsrcdir=${srcdir};;
	*) realsrcdir=../${srcdir};;
	esac
	CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
		--target=$target --host=$build --build=$build

	# We just finished tests for the build machine, so rename
	# the file auto-build.h in the gcc directory.
	mv auto-host.h ../auto-build.h
	cd ..
	rm -rf $tempdir
	build_xm_file="auto-build.h gansidecl.h ${build_xm_file} hwint.h"
fi

xm_file="gansidecl.h ${xm_file}"
tm_file="gansidecl.h ${tm_file}"

vars="host_xm_file tm_file tm_p_file xm_file build_xm_file"
links="config.h tm.h tm_p.h tconfig.h hconfig.h"
defines="host_xm_defines null_defines null_defines xm_defines build_xm_defines"

rm -f config.bak
if test -f config.status; then mv -f config.status config.bak; fi

# Make the links.
while test -n "$vars"
do
	set $vars; var=$1; shift; vars=$*
	set $links; link=$1; shift; links=$*
	set $defines; define=$1; shift; defines=$*

	rm -f $link
	# Make sure the file is created, even if it is empty.
	echo >$link

	# Define TARGET_CPU_DEFAULT if the system wants one.
	# This substitutes for lots of *.h files.
	if test "$target_cpu_default" != "" -a $link = tm.h
	then
		echo "#define TARGET_CPU_DEFAULT ($target_cpu_default)" >>$link
	fi

	for file in `eval echo '$'$var`; do
		case $file in
		auto-config.h)
			;;
		*)
			echo '#ifdef IN_GCC' >>$link
			;;
		esac
		echo "#include \"$file\"" >>$link
		case $file in
		auto-config.h)
			;;
		*)
			echo '#endif' >>$link
			;;
		esac
	done

	for def in `eval echo '$'$define`; do
		echo "#ifndef $def" >>$link
		echo "#define $def" >>$link
		echo "#endif" >>$link
	done
done

# Truncate the target if necessary
if test x$host_truncate_target != x; then
	target=`echo $target | sed -e 's/\(..............\).*/\1/'`
fi

# Get the version trigger filename from the toplevel
if test "${with_gcc_version_trigger+set}" = set; then
	gcc_version_trigger=$with_gcc_version_trigger
else
	gcc_version_trigger=${srcdir}/version.c
fi
changequote(,)dnl
gcc_version=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^ \"]*\)[ \"].*/\1/'`
changequote([,])dnl

# Internationalization
PACKAGE=gcc
VERSION="$gcc_version"
AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE")
AC_DEFINE_UNQUOTED(VERSION, "$VERSION")
AC_SUBST(PACKAGE)
AC_SUBST(VERSION)

ALL_LINGUAS="en_UK"

# NLS support is still experimental, so disable it by default for now.
AC_ARG_ENABLE(nls,
  [  --enable-nls            use Native Language Support (disabled by default)],
  , enable_nls=no)

AM_GNU_GETTEXT
XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"

# Windows32 Registry support for specifying GCC installation paths.
AC_ARG_ENABLE(win32-registry,
[  --disable-win32-registry
                          Disable lookup of installation paths in the
                         Registry on Windows hosts.
  --enable-win32-registry Enable registry lookup (default).
  --enable-win32-registry=KEY
                          Use KEY instead of GCC version as the last portion
                         of the registry key.],,)

AC_MSG_CHECKING(whether windows registry support is requested)
if test x$enable_win32_registry != xno; then
  AC_DEFINE(ENABLE_WIN32_REGISTRY)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

# Check if user specified a different registry key.
case x${enable_win32_registry} in
x | xyes)
  # default.
  gcc_cv_win32_registry_key="$VERSION"
  ;;
xno)
  # no registry lookup.
  gcc_cv_win32_registry_key=''
  ;;
*)
  # user-specified key.
  gcc_cv_win32_registry_key="$enable_win32_registry"
  ;;
esac

if test x$enable_win32_registry != xno; then
  AC_MSG_CHECKING(registry key on windows hosts)
  AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key")
  AC_MSG_RESULT($gcc_cv_win32_registry_key)
fi

# Get an absolute path to the GCC top-level source directory
holddir=`pwd`
cd $srcdir
topdir=`pwd`
cd $holddir

# Conditionalize the makefile for this host machine.
# Make-host contains the concatenation of all host makefile fragments
# [there can be more than one].  This file is built by configure.frag.
host_overrides=Make-host
dep_host_xmake_file=
for f in .. ${host_xmake_file}
do
	if test -f ${srcdir}/config/$f
	then
		dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
	fi
done

# Conditionalize the makefile for this target machine.
# Make-target contains the concatenation of all host makefile fragments
# [there can be more than one].  This file is built by configure.frag.
target_overrides=Make-target
dep_tmake_file=
for f in .. ${tmake_file}
do
	if test -f ${srcdir}/config/$f
	then
		dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
	fi
done

# If the host doesn't support symlinks, modify CC in
# FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
# Otherwise, we can use "CC=$(CC)".
rm -f symtest.tem
if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
then
	cc_set_by_configure="\$(CC)"
	quoted_cc_set_by_configure="\$(CC)"
	stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
else
	rm -f symtest.tem
	if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
	then
		symbolic_link="cp -p"
	else
		symbolic_link="cp"
	fi
	cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
	quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
	stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
fi
rm -f symtest.tem

out_object_file=`basename $out_file .c`.o

tm_file_list=
for f in $tm_file; do
  case $f in
    gansidecl.h )
       tm_file_list="${tm_file_list} $f" ;;
    *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
  esac
done

host_xm_file_list=
for f in $host_xm_file; do
  case $f in
    auto-host.h | gansidecl.h | hwint.h )
       host_xm_file_list="${host_xm_file_list} $f" ;;
    *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
  esac
done

build_xm_file_list=
for f in $build_xm_file; do
  case $f in
    auto-build.h | auto-host.h | gansidecl.h | hwint.h )
       build_xm_file_list="${build_xm_file_list} $f" ;;
    *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
  esac
done

# Define macro CROSS_COMPILE in compilation
# if this is a cross-compiler.
# Also use all.cross instead of all.internal
# and add cross-make to Makefile.
cross_overrides="/dev/null"
if test x$host != x$target
then
	cross_defines="CROSS=-DCROSS_COMPILE"
	cross_overrides="${topdir}/cross-make"
fi

# When building gcc with a cross-compiler, we need to fix a few things.
# This must come after cross-make as we want all.build to override
# all.cross.
build_overrides="/dev/null"
if test x$build != x$host
then
	build_overrides="${topdir}/build-make"
fi

# Expand extra_headers to include complete path.
# This substitutes for lots of t-* files.
extra_headers_list=
if test "x$extra_headers" = x
then true
else
	# Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
	for file in $extra_headers;
	do
		extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
	done
fi

if test x$use_collect2 = xno; then
	use_collect2=
fi

# Add a definition of USE_COLLECT2 if system wants one.
# Also tell toplev.c what to do.
# This substitutes for lots of t-* files.
if test x$use_collect2 = x
then
	will_use_collect2=
	maybe_use_collect2=
else
	will_use_collect2="collect2"
	maybe_use_collect2="-DUSE_COLLECT2"
fi

# NEED TO CONVERT
# Set MD_DEPS if the real md file is in md.pre-cpp.
# Set MD_CPP to the cpp to pass the md file through.  Md files use ';'
# for line oriented comments, so we must always use a GNU cpp.  If
# building gcc with a cross compiler, use the cross compiler just
# built.  Otherwise, we can use the cpp just built.
md_file_sub=
if test "x$md_cppflags" = x
then
	md_file_sub=$srcdir/config/$md_file
else
	md_file=md
fi

# If we have gas in the build tree, make a link to it.
if test -f ../gas/Makefile; then
	rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
fi

# If we have nm in the build tree, make a link to it.
if test -f ../binutils/Makefile; then
	rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
fi

# If we have ld in the build tree, make a link to it.
if test -f ../ld/Makefile; then
#	if test x$use_collect2 = x; then
#		rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
#	else
		rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
#	fi
fi

# Figure out what assembler alignment features are present.
AC_MSG_CHECKING(assembler alignment features)
gcc_cv_as=
gcc_cv_as_alignment_features=
gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
if test -x "$DEFAULT_ASSEMBLER"; then
	gcc_cv_as="$DEFAULT_ASSEMBLER"
elif test -x "$AS"; then
	gcc_cv_as="$AS"
elif test -x as$host_exeext; then
	# Build using assembler in the current directory.
	gcc_cv_as=./as$host_exeext
elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
	# Single tree build which includes gas.
	for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
	do
changequote(,)dnl
		gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
changequote([,])dnl
		if test x$gcc_cv_gas_version != x; then
			break
		fi
	done
changequote(,)dnl
	gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
	gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
changequote([,])dnl
	if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
		# Gas version 2.6 and later support for .balign and .p2align.
		# bytes to skip when using .p2align.
		if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
			gcc_cv_as_alignment_features=".balign and .p2align"
			AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
		fi
		# Gas version 2.8 and later support specifying the maximum
		# bytes to skip when using .p2align.
		if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
			gcc_cv_as_alignment_features=".p2align including maximum skip"
			AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
		fi
	fi
elif test x$host = x$target; then
	# Native build.
	# Search the same directories that the installed compiler will
	# search.  Else we may find the wrong assembler and lose.  If we
	# do not find a suitable assembler binary, then try the user's
	# path.
	#
	# Also note we have to check MD_EXEC_PREFIX before checking the
	# user's path.  Unfortunately, there is no good way to get at the
	# value of MD_EXEC_PREFIX here.  So we do a brute force search
	# through all the known MD_EXEC_PREFIX values.  Ugh.  This needs
	# to be fixed as part of the make/configure rewrite too.

	if test "x$exec_prefix" = xNONE; then
		if test "x$prefix" = xNONE; then
			test_prefix=/usr/local
		else
			test_prefix=$prefix
		fi
	else
		test_prefix=$exec_prefix
	fi

	# If the loop below does not find an assembler, then use whatever
	# one we can find in the users's path.
	# user's path.
	as=as$host_exeext

	test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
		   $test_prefix/lib/gcc-lib/$target \
		   /usr/lib/gcc/$target/$gcc_version \
		   /usr/lib/gcc/$target \
		   $test_prefix/$target/bin/$target/$gcc_version \
		   $test_prefix/$target/bin \
		   /usr/libexec \
		   /usr/ccs/gcc \
		   /usr/ccs/bin \
		   /udk/usr/ccs/bin \
		   /bsd43/usr/lib/cmplrs/cc \
		   /usr/cross64/usr/bin \
		   /usr/lib/cmplrs/cc \
		   /sysv/usr/lib/cmplrs/cc \
		   /svr4/usr/lib/cmplrs/cc \
		   /usr/bin"

	for dir in $test_dirs; do
		if test -f $dir/as$host_exeext; then
			gcc_cv_as=$dir/as$host_exeext
			break;
		fi
	done
fi
if test x$gcc_cv_as != x; then
	# Check if we have .balign and .p2align
	echo ".balign  4" > conftest.s
	echo ".p2align  2" >> conftest.s
	if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
		gcc_cv_as_alignment_features=".balign and .p2align"
		AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
	fi
	rm -f conftest.s conftest.o
	# Check if specifying the maximum bytes to skip when
	# using .p2align is supported.
	echo ".p2align 4,,7" > conftest.s
	if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
		gcc_cv_as_alignment_features=".p2align including maximum skip"
		AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
	fi
	rm -f conftest.s conftest.o
fi
AC_MSG_RESULT($gcc_cv_as_alignment_features)

AC_MSG_CHECKING(assembler subsection support)
gcc_cv_as_subsections=
if test x$gcc_cv_as != x; then
	# Check if we have .subsection
	echo ".subsection 1" > conftest.s
	if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
		gcc_cv_as_subsections=".subsection"
		if test -x nm$host_exeext; then
			gcc_cv_nm=./nm$host_exeext
		elif test x$host = x$target; then
			# Native build.
			gcc_cv_nm=nm$host_exeext
		fi
		if test x$gcc_cv_nm != x; then
			cat > conftest.s <<EOF
conftest_label1: .word 0
.subsection -1
conftest_label2: .word 0
.previous
EOF
			if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
				$gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
				$gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
				if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
					:
				else
					gcc_cv_as_subsections="working .subsection -1"
					AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING)
				fi
			fi
		fi
	fi
	rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
fi
AC_MSG_RESULT($gcc_cv_as_subsections)

AC_MSG_CHECKING(assembler weak support)
gcc_cv_as_weak=
if test x$gcc_cv_as != x; then
	# Check if we have .weak
	echo "	.weak foobar" > conftest.s
	if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
		AC_DEFINE(HAVE_GAS_WEAK)
		gcc_cv_as_weak="yes"
	fi
	rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
fi
AC_MSG_RESULT($gcc_cv_as_weak)

case "$target" in 
  sparc*-*-*)
    AC_CACHE_CHECK([assembler .register pseudo-op support],
	gcc_cv_as_register_pseudo_op, [
	gcc_cv_as_register_pseudo_op=unknown
	if test x$gcc_cv_as != x; then
	    # Check if we have .register
	    echo ".register %g2, #scratch" > conftest.s
	    if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
		gcc_cv_as_register_pseudo_op=yes
	    else
		gcc_cv_as_register_pseudo_op=no
	    fi
	    rm -f conftest.s conftest.o
	fi
    ])
    if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
	AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP)
    fi

    case "$tm_file" in
    *64*)
	AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
	    gcc_cv_as_flags64, [
		if test -n "$gcc_cv_as"; then
		    echo ".xword foo" > conftest.s
		    gcc_cv_as_flags64=no
		    for flag in "-xarch=v9" "-64 -Av9"; do
			if $gcc_cv_as $flag -o conftest.o conftest.s \
			    > /dev/null 2>&1; then
			    gcc_cv_as_flags64=$flag
			    break
			fi
		    done
		    rm -f conftest.s conftest.o
		else
		    if test "$gas" = yes; then
			gcc_cv_as_flags64="-64 -Av9"
		    else
			gcc_cv_as_flags64="-xarch=v9"
		    fi
		fi
	])
	if test "x$gcc_cv_as_flags64" = xno; then
changequote(, )
	    tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
	    dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
changequote([, ])
	else
	    AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64")
	fi
	;;
    *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
	;;
    esac

    if test "x$gcc_cv_as_flags64" != xno; then
	AC_CACHE_CHECK([for assembler offsetable %lo() support],
	    gcc_cv_as_offsetable_lo10, [
	    gcc_cv_as_offsetable_lo10=unknown
	    if test "x$gcc_cv_as" != x; then
		# Check if assembler has offsetable %lo()
		echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
		echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
		if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
			> /dev/null 2>&1 &&
		   $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
			> /dev/null 2>&1; then
		    if cmp conftest.o conftest1.o > /dev/null 2>&1; then
			gcc_cv_as_offsetable_lo10=no
		    else
			gcc_cv_as_offsetable_lo10=yes
		    fi
		else
		    gcc_cv_as_offsetable_lo10=no
		fi
		rm -f conftest.s conftest.o conftest1.s conftest1.o
	    fi
	])
	if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
	    AC_DEFINE(HAVE_AS_OFFSETABLE_LO10)
	fi
    fi
    ;;

changequote(,)dnl
  i[34567]86-*-*)
changequote([,])dnl
    AC_MSG_CHECKING(assembler instructions)
    gcc_cv_as_instructions=
    if test x$gcc_cv_as != x; then
	set "filds fists" "filds mem; fists mem"
	while test $# -gt 0
  	do
		echo "$2" > conftest.s
		if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
			gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
			AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$1" | tr '[a-z ]' '[A-Z_]'`)
		fi
		shift 2
	done
	rm -f conftest.s conftest.o
    fi
    AC_MSG_RESULT($gcc_cv_as_instructions)
    ;;
esac

# Figure out what language subdirectories are present.
# Look if the user specified --enable-languages="..."; if not, use
# the environment variable $LANGUAGES if defined. $LANGUAGES might
# go away some day.
if test x"${enable_languages+set}" != xset; then
	if test x"${LANGUAGES+set}" = xset; then
		enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
	else
		enable_languages=all
	fi
fi
subdirs=
for lang in ${srcdir}/*/config-lang.in ..
do
	case $lang in
	..) ;;
	# The odd quoting in the next line works around
	# an apparent bug in bash 1.12 on linux.
changequote(,)dnl
	${srcdir}/[*]/config-lang.in) ;;
	*)
	  lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ 	]*\).*$,\1,p' $lang`
	  if test "x$lang_alias" = x
	  then
		echo "$lang doesn't set \$language." 1>&2
		exit 1
	  fi
	  if test x"${enable_languages}" = xall; then
	  	add_this_lang=yes
	  else
		case "${enable_languages}" in
		    ${lang_alias} | "${lang_alias},"* | *",${lang_alias},"* | *",${lang_alias}" )
			add_this_lang=yes
			;;
		    * )
			add_this_lang=no
			;;
		esac
	  fi
	  if test x"${add_this_lang}" = xyes; then
		case $lang in
		    ${srcdir}/ada/config-lang.in)
			if test x$gnat = xyes ; then
				subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
			fi
			;;
		    *)
			subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
			;;
		esac
	  fi
	  ;;
changequote([,])dnl
	esac
done

# Make gthr-default.h if we have a thread file.
gthread_flags=
if test $thread_file != single; then
    rm -f gthr-default.h
    echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
    gthread_flags=-DHAVE_GTHR_DEFAULT
fi
AC_SUBST(gthread_flags)

# Find out what GC implementation we want, or may, use.
AC_ARG_WITH(gc,
[  --with-gc={simple,page} Choose the garbage collection mechanism to use
                           with the compiler.],
[case "$withval" in
  simple | page)
    GGC=ggc-$withval
    ;;
  *)
    AC_MSG_ERROR([$withval is an invalid option to --with-gc])
    ;;
esac],
[if test $ac_cv_func_mmap_anywhere = yes \
    || test $ac_cv_func_valloc = yes; then
  GGC=ggc-page
else
  GGC=ggc-simple
fi])
AC_SUBST(GGC)
echo "Using $GGC for garbage collection."

# Build a new-abi (c++) system
AC_ARG_ENABLE(new-gxx-abi,
[  --enable-new-gxx-abi
			  select the new abi for g++. You must select an ABI
			  at configuration time, so that the correct runtime
			  support is built. You cannot mix ABIs.],
[AC_DEFINE(ENABLE_NEW_GXX_ABI)
GXX_ABI_FLAG='-fnew-abi'
echo "Building a new-abi g++ compiler."
])
AC_SUBST(GXX_ABI_FLAG)

# Make empty files to contain the specs and options for each language.
# Then add #include lines to for a compiler that has specs and/or options.

lang_specs_files=
lang_options_files=
lang_tree_files=
rm -f specs.h options.h gencheck.h
touch specs.h options.h gencheck.h
for subdir in . $subdirs
do
	if test -f $srcdir/$subdir/lang-specs.h; then
		echo "#include \"$subdir/lang-specs.h\"" >>specs.h
		lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
	fi
	if test -f $srcdir/$subdir/lang-options.h; then
		echo "#include \"$subdir/lang-options.h\"" >>options.h
		lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
	fi
	if test -f $srcdir/$subdir/$subdir-tree.def; then
		echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
		lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
	fi
done

# These (without "all_") are set in each config-lang.in.
# `language' must be a single word so is spelled singularly.
all_languages=
all_boot_languages=
all_compilers=
all_stagestuff=
all_diff_excludes=
all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug'
# List of language makefile fragments.
all_lang_makefiles=
all_headers=
all_lib2funcs=

# Add the language fragments.
# Languages are added via two mechanisms.  Some information must be
# recorded in makefile variables, these are defined in config-lang.in.
# We accumulate them and plug them into the main Makefile.
# The other mechanism is a set of hooks for each of the main targets
# like `clean', `install', etc.

language_fragments="Make-lang"
language_hooks="Make-hooks"
oldstyle_subdirs=

for s in .. $subdirs
do
	if test $s != ".."
	then
		language=
		boot_language=
		compilers=
		stagestuff=
		diff_excludes=
		headers=
		outputs=
		lib2funcs=
		. ${srcdir}/$s/config-lang.in
		if test "x$language" = x
		then
			echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
			exit 1
		fi
		all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in ${srcdir}/$s/Makefile.in"
		all_languages="$all_languages $language"
		if test "x$boot_language" = xyes
		then
			all_boot_languages="$all_boot_languages $language"
		fi
		all_compilers="$all_compilers $compilers"
		all_stagestuff="$all_stagestuff $stagestuff"
		all_diff_excludes="$all_diff_excludes $diff_excludes"
		all_headers="$all_headers $headers"
		all_outputs="$all_outputs $outputs"
		if test x$outputs = x
		then
			oldstyle_subdirs="$oldstyle_subdirs $s"
		fi
		all_lib2funcs="$all_lib2funcs $lib2funcs"
	fi
done

# Since we can't use `::' targets, we link each language in
# with a set of hooks, reached indirectly via lang.${target}.

rm -f Make-hooks
touch Make-hooks
target_list="all.build all.cross start.encap rest.encap \
	info dvi \
	install-normal install-common install-info install-man \
	uninstall distdir \
	mostlyclean clean distclean extraclean maintainer-clean \
	stage1 stage2 stage3 stage4"
for t in $target_list
do
	x=
	for lang in .. $all_languages
	do
		if test $lang != ".."; then
			x="$x $lang.$t"
		fi
	done
	echo "lang.$t: $x" >> Make-hooks
done

# If we're not building in srcdir, create .gdbinit.

if test ! -f Makefile.in; then
	echo "dir ." > .gdbinit
	echo "dir ${srcdir}" >> .gdbinit
	if test x$gdb_needs_out_file_path = xyes
	then
		echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
	fi
	if test "x$subdirs" != x; then
		for s in $subdirs
		do
			echo "dir ${srcdir}/$s" >> .gdbinit
		done
	fi
	echo "source ${srcdir}/.gdbinit" >> .gdbinit
fi

# Define variables host_canonical and build_canonical
# because some Cygnus local changes in the Makefile depend on them.
build_canonical=${build}
host_canonical=${host}
target_subdir=
if test "${host}" != "${target}" ; then
    target_subdir=${target}/
fi
AC_SUBST(build_canonical)
AC_SUBST(host_canonical)
AC_SUBST(target_subdir)
	
# If this is using newlib, then define inhibit_libc in
# LIBGCC2_CFLAGS.  This will cause __eprintf to be left out of
# libgcc.a, but that's OK because newib should have its own version of
# assert.h.
inhibit_libc=
if test x$with_newlib = xyes; then
	inhibit_libc=-Dinhibit_libc
fi
AC_SUBST(inhibit_libc)

# If $(exec_prefix) exists and is not the same as $(prefix), then compute an
# absolute path for gcc_tooldir based on inserting the number of up-directory
# movements required to get from $(exec_prefix) to $(prefix) into the basic
# $(libsubdir)/@(unlibsubdir) based path.
# Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
# make and thus we'd get different behavior depending on where we built the
# sources.
if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
    gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
else
changequote(<<, >>)dnl
# An explanation of the sed strings:
#  -e 's|^\$(prefix)||'   matches and eliminates 'prefix' from 'exec_prefix'
#  -e 's|/$||'            match a trailing forward slash and eliminates it
#  -e 's|^[^/]|/|'        forces the string to start with a forward slash (*)
#  -e 's|/[^/]*|../|g'    replaces each occurance of /<directory> with ../
#
# (*) Note this pattern overwrites the first character of the string
# with a forward slash if one is not already present.  This is not a
# problem because the exact names of the sub-directories concerned is
# unimportant, just the number of them matters.
#
# The practical upshot of these patterns is like this:
#
#  prefix     exec_prefix        result
#  ------     -----------        ------
#   /foo        /foo/bar          ../
#   /foo/       /foo/bar          ../
#   /foo        /foo/bar/         ../
#   /foo/       /foo/bar/         ../
#   /foo        /foo/bar/ugg      ../../
#
    dollar='$$'
    gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
changequote([, ])dnl
fi
AC_SUBST(gcc_tooldir)
AC_SUBST(dollar)

# Nothing to do for FLOAT_H, float_format already handled.
objdir=`pwd`
AC_SUBST(objdir)

# Process the language and host/target makefile fragments.
${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"

# Substitute configuration variables
AC_SUBST(subdirs)
AC_SUBST(all_boot_languages)
AC_SUBST(all_compilers)
AC_SUBST(all_diff_excludes)
AC_SUBST(all_headers)
AC_SUBST(all_lang_makefiles)
AC_SUBST(all_languages)
AC_SUBST(all_lib2funcs)
AC_SUBST(all_stagestuff)
AC_SUBST(build_exeext)
AC_SUBST(build_install_headers_dir)
AC_SUBST(build_xm_file_list)
AC_SUBST(cc_set_by_configure)
AC_SUBST(quoted_cc_set_by_configure)
AC_SUBST(cpp_install_dir)
AC_SUBST(cpp_main)
AC_SUBST(dep_host_xmake_file)
AC_SUBST(dep_tmake_file)
AC_SUBST(extra_c_flags)
AC_SUBST(extra_c_objs)
AC_SUBST(extra_cpp_objs)
AC_SUBST(extra_cxx_objs)
AC_SUBST(extra_headers_list)
AC_SUBST(extra_objs)
AC_SUBST(extra_parts)
AC_SUBST(extra_passes)
AC_SUBST(extra_programs)
AC_SUBST(float_h_file)
AC_SUBST(gcc_gxx_include_dir)
AC_SUBST(gcc_version)
AC_SUBST(gcc_version_trigger)
AC_SUBST(host_exeext)
AC_SUBST(host_extra_gcc_objs)
AC_SUBST(host_xm_file_list)
AC_SUBST(install)
AC_SUBST(lang_options_files)
AC_SUBST(lang_specs_files)
AC_SUBST(lang_tree_files)
AC_SUBST(local_prefix)
AC_SUBST(maybe_use_collect2)
AC_SUBST(md_file)
AC_SUBST(objc_boehm_gc)
AC_SUBST(out_file)
AC_SUBST(out_object_file)
AC_SUBST(stage_prefix_set_by_configure)
AC_SUBST(symbolic_link)
AC_SUBST(thread_file)
AC_SUBST(tm_file_list)
AC_SUBST(will_use_collect2)


AC_SUBST_FILE(target_overrides)
AC_SUBST_FILE(host_overrides)
AC_SUBST(cross_defines)
AC_SUBST_FILE(cross_overrides)
AC_SUBST_FILE(build_overrides)
AC_SUBST_FILE(language_fragments)
AC_SUBST_FILE(language_hooks)

# Echo that links are built
if test x$host = x$target
then
	str1="native "
else
	str1="cross-"
	str2=" from $host"
fi

if test x$host != x$build
then
	str3=" on a $build system"
fi

if test "x$str2" != x || test "x$str3" != x
then
	str4=
fi

echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2

if test "x$str2" != x || test "x$str3" != x
then
	echo " ${str2}${str3}." 1>&2
fi

# Truncate the target if necessary
if test x$host_truncate_target != x; then
	target=`echo $target | sed -e 's/\(..............\).*/\1/'`
fi

# Configure the subdirectories
# AC_CONFIG_SUBDIRS($subdirs)

# Create the Makefile
# and configure language subdirectories
AC_OUTPUT($all_outputs,
[
. $srcdir/configure.lang
case x$CONFIG_HEADERS in
xauto-host.h:config.in)
echo > cstamp-h ;;
esac
# If the host supports symlinks, point stage[1234] at ../stage[1234] so
# bootstrapping and the installation procedure can still use
# CC="stage1/xgcc -Bstage1/".  If the host doesn't support symlinks,
# FLAGS_TO_PASS has been modified to solve the problem there.
# This is virtually a duplicate of what happens in configure.lang; we do
# an extra check to make sure this only happens if ln -s can be used.
if test "$symbolic_link" = "ln -s"; then
 for d in .. ${subdirs} ; do
   if test $d != ..; then
	STARTDIR=`pwd`
	cd $d
	for t in stage1 stage2 stage3 stage4 include
	do
		rm -f $t
		$symbolic_link ../$t $t 2>/dev/null
	done
	cd $STARTDIR
   fi
 done
else true ; fi
# Avoid having to add intl to our include paths.
if test -f intl/libintl.h; then
  echo creating libintl.h
  echo '#include "intl/libintl.h"' >libintl.h
fi
],
[
host='${host}'
build='${build}'
target='${target}'
target_alias='${target_alias}'
srcdir='${srcdir}'
subdirs='${subdirs}'
oldstyle_subdirs='${oldstyle_subdirs}'
symbolic_link='${symbolic_link}'
program_transform_set='${program_transform_set}'
program_transform_name='${program_transform_name}'
dep_host_xmake_file='${dep_host_xmake_file}'
host_xmake_file='${host_xmake_file}'
dep_tmake_file='${dep_tmake_file}'
tmake_file='${tmake_file}'
thread_file='${thread_file}'
gcc_version='${gcc_version}'
gcc_version_trigger='${gcc_version_trigger}'
local_prefix='${local_prefix}'
build_install_headers_dir='${build_install_headers_dir}'
build_exeext='${build_exeext}'
host_exeext='${host_exeext}'
out_file='${out_file}'
gdb_needs_out_file_path='${gdb_needs_out_file_path}'
SET_MAKE='${SET_MAKE}'
target_list='${target_list}'
target_overrides='${target_overrides}'
host_overrides='${host_overrides}'
cross_defines='${cross_defines}'
cross_overrides='${cross_overrides}'
build_overrides='${build_overrides}'
cpp_install_dir='${cpp_install_dir}'
])