Add port done awhile ago for the ARC cpu.

[gcc.git] / gcc / configure.in

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

# Copyright (C) 1997 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_INIT(tree.c)
AC_CONFIG_HEADER(config.h:config.in)

native_prefix=/usr
remove=rm
hard_link=ln
symbolic_link='ln -s'
copy=cp

# Check for additional parameters

# With GNU ld
AC_ARG_WITH(gnu-ld,
[  --with-gnu-ld           arrange to work with GNU ld.],
gnu_ld=yes,
gnu_ld=no)

# With GNU as
AC_ARG_WITH(gnu-as,
[  --with-gnu-as           arrange to work with GNU as.],
gas=yes,
gas=no)

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

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

# Specify the local prefix
AC_ARG_WITH(local-prefix,
[  --with-local-prefix=DIR specifies directory to put local include.],
local_prefix=$with_local_prefix,
local_prefix=/usr/local)

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

# Specify the g++ header file directory
AC_ARG_WITH(gxx-include-dir,
[  --with-gxx-include-dir=DIR
                          specifies directory to put g++ header files.],
gxx_include_dir=$with_gxx_include_dir,
gxx_include_dir='${prefix}/include/g++')

# Default g++ header file directory if it is empty
if [[ x$gxx_include_dir = x ]]; then
        gxx_include_dir='${prefix}/include/g++'
fi

# Enable use of cpplib for C.
AC_ARG_ENABLE(c-cpplib,
[  --enable-c-cpplib       Use cpplib for C.],
if [[[ x$enable_c_cpplib != xno ]]]; then
  extra_c_objs="${extra_c_objs} cpplib.o cppexp.o cpphash.o cpperror.o"
  extra_c_flags=-DUSE_CPPLIB=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 [[[ x$enable_threads = xno ]]]; then
        enable_threads=''
fi,
enable_threads='')

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

# Determine the host, build, and target systems
AC_CANONICAL_SYSTEM

# Find some useful tools
AC_PROG_AWK
AC_PROG_LEX
AC_PROG_LN_S
AC_PROG_RANLIB
AC_PROG_YACC
AC_PROG_INSTALL

# Find the native compiler
AC_PROG_CC
AC_PROG_MAKE_SET

AC_CHECK_HEADERS(stddef.h string.h strings.h stdlib.h time.h unistd.h)

GCC_NEED_DECLARATION(malloc)
GCC_NEED_DECLARATION(realloc)
GCC_NEED_DECLARATION(calloc)
GCC_NEED_DECLARATION(free)

AC_DECL_SYS_SIGLIST

AC_CHECK_FUNCS(strerror)

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

build_xm_file=
build_install_headers_dir=install-headers-tar
build_exeext=
host_xm_file=
host_xmake_file=
host_truncate_target=

# 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=
        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 which fixincludes program to use.
        fixincludes=fixincludes
        # 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 default cpu_type, tm_file and xm_file so it can be updated in
        # each machine entry.
        cpu_type=`echo $machine | sed 's/-.*$//'`
        case $machine in
        alpha*-*-*)
                cpu_type=alpha
                ;;
        arm*-*-*)
                cpu_type=arm
                ;;
        c*-convex-*)
                cpu_type=convex
                ;;
        i[[3456]]86-*-*)
                cpu_type=i386
                ;;
        hppa*-*-*)
                cpu_type=pa
                ;;
        m68000-*-*)
                cpu_type=m68k
                ;;
        mips*-*-*)
                cpu_type=mips
                ;;
        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
        
        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 [[ -f $srcdir/config/${cpu_type}/x-$rest ]] ; \
                then xmake_file=${cpu_type}/x-$rest; \
                else true; \
                fi
                if [[ -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_file=a29k/xm-unix.h
                xmake_file=a29k/x-unix
                use_collect2=yes
                ;;
        a29k-*-udi | a29k-*-coff)
                tm_file="${tm_file} dbxcoff.h a29k/udi.h"
                tmake_file=a29k/t-a29kbare
                ;;
        a29k-*-vxworks*)
                tm_file="${tm_file} dbxcoff.h a29k/udi.h a29k/vx29k.h"
                tmake_file=a29k/t-vx29k
                extra_parts="crtbegin.o crtend.o"
                ;;
        a29k-*-*)                       # Default a29k environment.
                use_collect2=yes
                ;;
        alpha*-*-linux-gnuecoff*)
                tm_file="${tm_file} alpha/linux.h"
                xm_file="${xm_file} alpha/xm-linux.h"
                target_cpu_default="MASK_GAS"
                gas=no
                xmake_file=none
                fixincludes=Makefile.in
                gas=yes gnu_ld=yes
                ;;
        alpha*-*-linux-gnulibc1*)
                tm_file="${tm_file} alpha/linux.h alpha/elf.h"
                xm_file="${xm_file} alpha/xm-linux.h"
                target_cpu_default="MASK_GAS"
                tmake_file="t-linux t-linux-gnulibc1 alpha/t-linux"
                xmake_file=none
                fixincludes=Makefile.in
                gas=yes gnu_ld=yes
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='posix'
                fi
                ;;
        alpha*-*-linux-gnu*)
                tm_file="${tm_file} alpha/linux.h alpha/elf.h"
                xm_file="${xm_file} alpha/xm-linux.h"
                target_cpu_default="MASK_GAS"
                tmake_file="t-linux alpha/t-linux"
                xmake_file=none
                fixincludes=Makefile.in
                gas=yes gnu_ld=yes
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='posix'
                fi
                ;;
        alpha*-dec-osf[[456789]]*)
                if [[ x$stabs = xyes ]]
                then
                        tm_file="${tm_file} dbx.h"
                fi
                if [[ x$gas != xyes ]]
                then
                        extra_passes="mips-tfile mips-tdump"
                fi
                use_collect2=yes
                # Some versions of OSF4 (specifically X4.0-9 296.7) have
                # a broken tar, so we use cpio instead.
                case $machine in
                  alpha*-dec-osf4*)
                    install_headers_dir=install-headers-cpio
                    ;;
                esac
                ;;
        alpha*-dec-osf[[23]]*)
                tm_file="${tm_file} alpha/osf2or3.h"
                if [[ x$stabs = xyes ]]
                then
                        tm_file="${tm_file} dbx.h"
                fi
                if [[ x$gas != xyes ]]
                then
                        extra_passes="mips-tfile mips-tdump"
                fi
                use_collect2=yes
                ;;
        alpha*-dec-osf1.2)
                tm_file="${tm_file} alpha/osf12.h"
                if [[ x$stabs = xyes ]]
                then
                        tm_file="${tm_file} dbx.h"
                fi
                if [[ x$gas != xyes ]]
                then
                        extra_passes="mips-tfile mips-tdump"
                fi
                use_collect2=yes
                ;;
        alpha*-*-osf*)
                if [[ x$stabs = xyes ]]
                then
                        tm_file="${tm_file} dbx.h"
                fi
                if [[ x$gas != xyes ]]
                then
                        extra_passes="mips-tfile mips-tdump"
                fi
                use_collect2=yes
                ;;
        alpha*-*-winnt3*)
                tm_file="${tm_file} alpha/win-nt.h"
                target_cpu_default=MASK_WINDOWS_NT
                xm_file="${xm_file} config/winnt/xm-winnt.h alpha/xm-winnt.h"
                tmake_file=t-libc-ok
                xmake_file=winnt/x-winnt
                extra_host_objs=oldnames.o
                extra_gcc_objs="spawnv.o oldnames.o"
                fixincludes=fixinc.winnt
                if [[ x$gnu_ld != xyes ]]
                then
                        extra_programs=ld.exe
                fi
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='win32'
                fi
                ;;
        alpha*-dec-vms*)
                tm_file=alpha/vms.h
                xm_file="${xm_file} alpha/xm-vms.h"
                tmake_file=alpha/t-vms
                fixincludes=Makefile.in
                ;;
        arc-*-elf*)
                extra_parts="crtinit.o crtfini.o"
                ;;
        arm-*-coff* | armel-*-coff*)
                tm_file=arm/coff.h
                tmake_file=arm/t-bare
                ;;
        arm-*-riscix1.[[01]]*)          # Acorn RISC machine (early versions)
                tm_file=arm/riscix1-1.h
                use_collect2=yes
                ;;
        arm-*-riscix*)                  # Acorn RISC machine
                if [[ x$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
                fixincludes=Makefile.in # There is nothing to fix
                ;;
        arm-semi-aof | armel-semi-aof)
                tm_file=arm/semiaof.h
                tmake_file=arm/t-semiaof
                fixincludes=Makefile.in # There is nothing to fix
                ;;
        arm-*-netbsd*)
                tm_file=arm/netbsd.h
                xm_file=arm/xm-netbsd.h
                tmake_file=arm/t-netbsd
                # On NetBSD, the headers are already okay.
                fixincludes=Makefile.in
                use_collect2=yes
                ;;
        arm-*-linux-gnuaout*)           # ARM Linux
                cpu_type=arm
                xm_file=arm/xm-linux.h
                xmake_file=x-linux
                tm_file=arm/linux-gas.h
                tmake_file=arm/t-linux
                fixincludes=Makefile.in
                gnu_ld=yes
                ;;
        arm-*-aout)
                tm_file=arm/aout.h
                ;;
        c1-convex-*)                    # Convex C1
                target_cpu_default=1
                use_collect2=yes
                fixincludes=Makefile.in
                ;;
        c2-convex-*)                    # Convex C2
                target_cpu_default=2
                use_collect2=yes
                fixincludes=Makefile.in
                ;;
        c32-convex-*)
                target_cpu_default=4
                use_collect2=yes
                fixincludes=Makefile.in
                ;;
        c34-convex-*)
                target_cpu_default=8
                use_collect2=yes
                fixincludes=Makefile.in
                ;;
        c38-convex-*)
                target_cpu_default=16           
                use_collect2=yes
                fixincludes=Makefile.in
                ;;
        clipper-intergraph-clix*)
                tm_file="${tm_file} svr3.h clipper/clix.h"
                xm_file=clipper/xm-clix.h
                xmake_file=clipper/x-clix
                extra_headers=va-clipper.h
                extra_parts="crtbegin.o crtend.o"
                install_headers_dir=install-headers-cpio
                ;;
        dsp16xx-*)
                ;;
        elxsi-elxsi-*)
                use_collect2=yes
                ;;
# This hasn't been upgraded to GCC 2.
#       fx80-alliant-*)                 # Alliant FX/80
#               ;;
        h8300-*-*)
                float_format=i32
                ;;
        hppa1.1-*-pro*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                tm_file="pa/pa-pro.h ${tm_file} pa/pa-pro-end.h libgloss.h"
                xm_file=pa/xm-papro.h
                tmake_file=pa/t-pro
                ;;
        hppa1.1-*-osf*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                target_cpu_default=1
                tm_file="${tm_file} pa/pa-osf.h"
                use_collect2=yes
                fixincludes=Makefile.in
                ;;
        hppa1.1-*-rtems*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                tm_file="pa/pa-pro.h ${tm_file} pa/pa-pro-end.h libgloss.h pa/rtems.h"
                xm_file=pa/xm-papro.h
                tmake_file=pa/t-pro
                ;;
        hppa1.0-*-osf*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                tm_file="${tm_file} pa/pa-osf.h"
                use_collect2=yes
                fixincludes=Makefile.in
                ;;
        hppa1.1-*-bsd*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                target_cpu_default=1
                use_collect2=yes
                fixincludes=Makefile.in
                ;;
        hppa1.0-*-bsd*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                use_collect2=yes
                fixincludes=Makefile.in
                ;;
        hppa1.0-*-hpux7*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                tm_file="pa/pa-oldas.h ${tm_file} pa/pa-hpux7.h"
                xm_file=pa/xm-pahpux.h
                xmake_file=pa/x-pa-hpux
                if [[ x$gas = xyes ]]
                then
                        tm_file="${tm_file} pa/gas.h"
                fi
                install_headers_dir=install-headers-cpio
                use_collect2=yes
                ;;
        hppa1.0-*-hpux8.0[[0-2]]*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                tm_file="${tm_file} pa/pa-hpux.h"
                xm_file=pa/xm-pahpux.h
                xmake_file=pa/x-pa-hpux
                if [[ x$gas = xyes ]]
                then
                        tm_file="${tm_file} pa/pa-gas.h"
                else
                        tm_file="pa/pa-oldas.h ${tm_file}"
                fi
                install_headers_dir=install-headers-cpio
                use_collect2=yes
                ;;
        hppa1.1-*-hpux8.0[[0-2]]*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                target_cpu_default=1
                tm_file="${tm_file} pa/pa-hpux.h"
                xm_file=pa/xm-pahpux.h
                xmake_file=pa/x-pa-hpux
                if [[ x$gas = xyes ]]
                then
                        tm_file="${tm_file} pa/pa-gas.h"
                else
                        tm_file="pa/pa-oldas.h ${tm_file}"
                fi
                install_headers_dir=install-headers-cpio
                use_collect2=yes
                ;;
        hppa1.1-*-hpux8*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                target_cpu_default=1
                tm_file="${tm_file} pa/pa-hpux.h"
                xm_file=pa/xm-pahpux.h
                xmake_file=pa/x-pa-hpux
                if [[ x$gas = xyes ]]
                then
                        tm_file="${tm_file} pa/pa-gas.h"
                fi
                install_headers_dir=install-headers-cpio
                use_collect2=yes
                ;;
        hppa1.0-*-hpux8*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                tm_file="${tm_file} pa/pa-hpux.h"
                xm_file=pa/xm-pahpux.h
                xmake_file=pa/x-pa-hpux
                if [[ x$gas = xyes ]]
                then
                        tm_file="${tm_file} pa/pa-gas.h"
                fi
                install_headers_dir=install-headers-cpio
                use_collect2=yes
                ;;
        hppa1.1-*-hpux10*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                target_cpu_default=1
                tm_file="${tm_file} pa/pa-hpux.h pa/pa-hpux10.h"
                xm_file=pa/xm-pahpux.h
                xmake_file=pa/x-pa-hpux
                if [[ x$gas = xyes ]]
                then
                        tm_file="${tm_file} pa/pa-gas.h"
                fi
                install_headers_dir=install-headers-cpio
                use_collect2=yes
                ;;
        hppa1.0-*-hpux10*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                tm_file="${tm_file} pa/pa-hpux.h pa/pa-hpux10.h"
                xm_file=pa/xm-pahpux.h
                xmake_file=pa/x-pa-hpux
                if [[ x$gas = xyes ]]
                then
                        tm_file="${tm_file} pa/pa-gas.h"
                fi
                install_headers_dir=install-headers-cpio
                use_collect2=yes
                ;;
        hppa1.1-*-hpux*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                target_cpu_default=1
                tm_file="${tm_file} pa/pa-hpux.h pa/pa-hpux9.h"
                xm_file=pa/xm-pahpux.h
                xmake_file=pa/x-pa-hpux
                if [[ x$gas = xyes ]]
                then
                        tm_file="${tm_file} pa/pa-gas.h"
                fi
                install_headers_dir=install-headers-cpio
                use_collect2=yes
                ;;
        hppa1.0-*-hpux*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                tm_file="${tm_file} pa/pa-hpux.h pa/pa-hpux9.h"
                xm_file=pa/xm-pahpux.h
                xmake_file=pa/x-pa-hpux
                if [[ x$gas = xyes ]]
                then
                        tm_file="${tm_file} pa/pa-gas.h"
                fi
                install_headers_dir=install-headers-cpio
                use_collect2=yes
                ;;
        hppa1.1-*-hiux*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                target_cpu_default=1
                tm_file="${tm_file} pa/pa-hpux.h pa/pa-hiux.h"
                xm_file=pa/xm-pahpux.h
                xmake_file=pa/x-pa-hpux
                if [[ x$gas = xyes ]]
                then
                        tm_file="${tm_file} pa/pa-gas.h"
                fi
                install_headers_dir=install-headers-cpio
                use_collect2=yes
                ;;
        hppa1.0-*-hiux*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                tm_file="${tm_file} pa/pa-hpux.h pa/pa-hiux.h"
                xm_file=pa/xm-pahpux.h
                xmake_file=pa/x-pa-hpux
                if [[ x$gas = xyes ]]
                then
                        tm_file="${tm_file} pa/pa-gas.h"
                fi
                install_headers_dir=install-headers-cpio
                use_collect2=yes
                ;;
        hppa*-*-lites*)
                if [[ x$enable_haifa != xno ]]; then
                        enable_haifa=yes
                fi
                target_cpu_default=1
                use_collect2=yes
                fixincludes=Makefile.in
                ;;
        i370-*-mvs*)
                ;;
        i[[3456]]86-ibm-aix*)           # IBM PS/2 running AIX
                if [[ x$gas = xyes ]]
                then
                        tm_file=i386/aix386.h
                        extra_parts="crtbegin.o crtend.o"
                        tmake_file=i386/t-crtstuff
                else
                        tm_file=i386/aix386ng.h
                        use_collect2=yes
                fi
                xm_file=i386/xm-aix.h
                xmake_file=i386/x-aix
                ;;
        i486-ncr-sysv4*)                # NCR 3000 - i486 running system V.4
                xm_file=i386/xm-sysv4.h
                xmake_file=i386/x-ncr3000
                if [[ x$stabs = xyes -a x$gas = xyes ]]
                then
                        tm_file=i386/sysv4gdb.h
                else
                        tm_file=i386/sysv4.h
                fi
                extra_parts="crtbegin.o crtend.o"
                tmake_file=i386/t-crtpic
                ;;
        i[[3456]]86-next-*)
                tm_file=i386/next.h
                xm_file=i386/xm-next.h
                tmake_file=i386/t-next
                xmake_file=i386/x-next
                extra_objs=nextstep.o
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='mach'
                fi
                ;;
        i[[3456]]86-sequent-bsd*)               # 80386 from Sequent
                use_collect2=yes
                if [[ x$gas = xyes ]]
                then
                        tm_file=i386/seq-gas.h
                else
                        tm_file=i386/sequent.h
                fi
                ;;
        i[[3456]]86-sequent-ptx1*)
                xm_file=i386/xm-sysv3.h
                xmake_file=i386/x-sysv3
                tm_file=i386/seq-sysv3.h
                tmake_file=i386/t-crtstuff
                fixincludes=fixinc.ptx
                extra_parts="crtbegin.o crtend.o"
                install_headers_dir=install-headers-cpio
                ;;
        i[[3456]]86-sequent-ptx2* | i[[3456]]86-sequent-sysv3*)
                xm_file=i386/xm-sysv3.h
                xmake_file=i386/x-sysv3
                tm_file=i386/seq2-sysv3.h
                tmake_file=i386/t-crtstuff
                extra_parts="crtbegin.o crtend.o"
                fixincludes=fixinc.ptx
                install_headers_dir=install-headers-cpio
                ;;
        i[[3456]]86-sequent-ptx4* | i[[3456]]86-sequent-sysv4*)
                xm_file=i386/xm-sysv4.h
                xmake_file=x-svr4
                tm_file=i386/ptx4-i.h
                tmake_file=t-svr4
                extra_parts="crtbegin.o crtend.o"
                fixincludes=fixinc.ptx
                install_headers_dir=install-headers-cpio
                ;;
        i386-sun-sunos*)                # Sun i386 roadrunner
                xm_file=i386/xm-sun.h
                tm_file=i386/sun.h
                use_collect2=yes
                ;;
        i[[3456]]86-*-aout*)
                tm_file=i386/i386-aout.h
                tmake_file=i386/t-i386bare
                ;;
        i[[3456]]86-*-bsdi* | i[[345]]86-*-bsd386*)
                tm_file=i386/bsd386.h
                xm_file=i386/xm-bsd386.h
#               tmake_file=t-libc-ok
                ;;
        i[[3456]]86-*-bsd*)
                tm_file=i386/386bsd.h
                xm_file=i386/xm-bsd386.h
#               tmake_file=t-libc-ok
# Next line turned off because both 386BSD and BSD/386 use GNU ld.
#               use_collect2=yes
                ;;
        i[[3456]]86-*-freebsdelf*)
                tm_file="i386/i386.h i386/att.h linux.h i386/freebsd-elf.h i386/perform.h"
                xm_file=i386/xm-freebsd.h
                # On FreeBSD, the headers are already ok.
                fixincludes=Makefile.in
                tmake_file=i386/t-freebsd
                gas=yes
                gnu_ld=yes
                stabs=yes
                ;;
        i[[3456]]86-*-freebsd*)
                tm_file=i386/freebsd.h
                xm_file=i386/xm-freebsd.h
                # On FreeBSD, the headers are already ok.
                fixincludes=Makefile.in
                tmake_file=i386/t-freebsd
                ;;
        i[[3456]]86-*-netbsd*)
                tm_file=i386/netbsd.h
                xm_file=i386/xm-netbsd.h
                # On NetBSD, the headers are already okay.
                fixincludes=Makefile.in
                tmake_file=t-netbsd
                ;;
        i[[3456]]86-*-coff*)
                tm_file=i386/i386-coff.h
                tmake_file=i386/t-i386bare
                ;;
        i[[3456]]86-*-isc*)             # 80386 running ISC system
                xm_file=i386/xm-isc.h
                case $machine in
                  i[[345]]86-*-isc[[34]]*)
                    xmake_file=i386/x-isc3
                    ;;
                  *)
                    xmake_file=i386/x-isc
                    ;;
                esac
                if [[ x$gas = xyes -a x$stabs = xyes ]]
                then
                        tm_file=i386/iscdbx.h
                        tmake_file=i386/t-svr3dbx
                        extra_parts="svr3.ifile svr3z.ifile"
                else
                        tm_file=i386/isccoff.h
                        tmake_file=i386/t-crtstuff
                        extra_parts="crtbegin.o crtend.o"
                fi
                install_headers_dir=install-headers-cpio
                ;;
        i[[3456]]86-*-linux-gnuoldld*)  # Intel 80386's running Linux
                xm_file=i386/xm-linux.h # with a.out format using pre BFD linkers
                xmake_file=x-linux-aout
                tmake_file="t-linux-aout i386/t-crtstuff"
                tm_file=i386/linux-oldld.h
                fixincludes=Makefile.in #On Linux, the headers are ok already.
                gnu_ld=yes
                ;;
        i[[3456]]86-*-linux-gnuaout*)           # Intel 80386's running Linux
                xm_file=i386/xm-linux.h         # with a.out format
                xmake_file=x-linux-aout
                tmake_file="t-linux-aout i386/t-crtstuff"
                tm_file=i386/linux-aout.h
                fixincludes=Makefile.in #On Linux, the headers are ok already.
                gnu_ld=yes
                ;;
        i[[3456]]86-*-linux-gnulibc1)
                xm_file=i386/xm-linux.h # Intel 80386's running Linux
                xmake_file=x-linux      # with ELF format using the
                tm_file=i386/linux.h    # Linux C library 5
                tmake_file="t-linux t-linux-gnulibc1 i386/t-crtstuff"
                extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
                fixincludes=Makefile.in #On Linux, the headers are ok already.
                gnu_ld=yes
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='single'
                fi
                ;;
        i[[3456]]86-*-linux-gnu*)               # Intel 80386's running Linux
                xm_file=i386/xm-linux.h # with ELF format using glibc 2
                xmake_file=x-linux      # aka Linux C library 6
                tm_file=i386/linux.h
                tmake_file="t-linux i386/t-crtstuff"
                extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
                fixincludes=Makefile.in #On Linux, the headers are ok already.
                gnu_ld=yes
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='posix'
                fi
                ;;
        i[[3456]]86-*-gnu*)
                ;;
        i[[3456]]86-go32-msdos | i[[3456]]86-*-go32*)
                xm_file=i386/xm-go32.h
                tm_file=i386/go32.h
                tmake_file=i386/t-go32
                ;;
        i[[3456]]86-moss-msdos* | i[[3456]]86-*-moss*)
                tm_file=i386/moss.h
                tmake_file=t-libc-ok
                fixincludes=Makefile.in
                gnu_ld=yes
                gas=yes
                ;;
        i[[3456]]86-*-lynxos*)
                if [[ x$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
                ;;
        i[[3456]]86-*-mach*)
                tm_file=i386/mach.h
#               tmake_file=t-libc-ok
                use_collect2=yes
                ;;
        i[[3456]]86-*-osfrose*)         # 386 using OSF/rose
                if [[ x$elf = xyes ]]
                then
                        tm_file=i386/osfelf.h
                        use_collect2=
                else
                        tm_file=i386/osfrose.h
                        use_collect2=yes
                fi
                xm_file=i386/xm-osf.h
                xmake_file=i386/x-osfrose
                tmake_file=i386/t-osf
                extra_objs=halfpic.o
                ;;
        i[[345]]86-go32-rtems*)
                cpu_type=i386
                xm_file=i386/xm-go32.h
                tm_file=i386/go32-rtems.h
                tmake_file="i386/t-go32 t-rtems"
                ;;
        i[[345]]86-*-rtems*)
                cpu_type=i386
                tm_file=i386/rtems.h
                tmake_file="i386/t-i386bare t-rtems"
                ;;
        i[[3456]]86-*-sco3.2v5*)                # 80386 running SCO Open Server 5
                xm_file=i386/xm-sco5.h
                xmake_file=i386/x-sco5
                fixincludes=fixinc.sco
                tm_file=i386/sco5.h
                tmake_file=i386/t-sco5
                extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
                ;;
        i[[3456]]86-*-sco3.2v4*)                # 80386 running SCO 3.2v4 system
                xm_file=i386/xm-sco.h
                xmake_file=i386/x-sco4
                fixincludes=fixinc.sco
                install_headers_dir=install-headers-cpio
                if [[ x$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
                truncate_target=yes
                ;;
        i[[3456]]86-*-sco*)             # 80386 running SCO system
                xm_file=i386/xm-sco.h
                xmake_file=i386/x-sco
                install_headers_dir=install-headers-cpio
                if [[ x$stabs = xyes ]]
                then
                        tm_file=i386/scodbx.h
                        tmake_file=i386/t-svr3dbx
                        extra_parts="svr3.ifile svr3z.rfile"
                else
                        tm_file=i386/sco.h
                        extra_parts="crtbegin.o crtend.o"
                        tmake_file=i386/t-crtstuff
                fi
                truncate_target=yes
                ;;
        i[[3456]]86-*-solaris2*)
                xm_file=i386/xm-sysv4.h
                if [[ x$stabs = xyes ]]
                then
                        tm_file=i386/sol2dbg.h
                else
                        tm_file=i386/sol2.h
                fi
                tmake_file=i386/t-sol2
                extra_parts="crt1.o crti.o crtn.o crtbegin.o crtend.o"
                xmake_file=x-svr4
                fixincludes=fixinc.svr4
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='solaris'
                fi
                ;;
        i[[3456]]86-*-sysv4*)           # Intel 80386's running system V.4
                xm_file=i386/xm-sysv4.h
                tm_file=i386/sysv4.h
                if [[ x$stabs = xyes ]]
                then
                        tm_file="${tm_file} dbx.h"
                fi
                tmake_file=i386/t-crtpic
                xmake_file=x-svr4
                extra_parts="crtbegin.o crtend.o"
                ;;
        i[[3456]]86-*-sysv*)            # Intel 80386's running system V
                xm_file=i386/xm-sysv3.h
                xmake_file=i386/x-sysv3
                if [[ x$gas = xyes ]]
                then
                        if [[ x$stabs = xyes ]]
                        then
                                tm_file=i386/svr3dbx.h
                                tmake_file=i386/t-svr3dbx
                                extra_parts="svr3.ifile svr3z.rfile"
                        else
                                tm_file=i386/svr3gas.h
                                extra_parts="crtbegin.o crtend.o"
                                tmake_file=i386/t-crtstuff
                        fi
                else
                        tm_file=i386/sysv3.h
                        extra_parts="crtbegin.o crtend.o"
                        tmake_file=i386/t-crtstuff
                fi
                ;;
        i386-*-vsta)                    # Intel 80386's running VSTa kernel
                xm_file=i386/xm-vsta.h
                tm_file=i386/vsta.h
                tmake_file=i386/t-vsta
                xmake_file=i386/x-vsta
                ;;
        i[[3456]]86-*-pe | i[[3456]]86-*-cygwin32)
                xm_file="${xm_file} i386/xm-cygwin32.h"
                tmake_file=i386/t-cygwin32
                tm_file=i386/cygwin32.h
                xmake_file=i386/x-cygwin32
                extra_objs=winnt.o
                fixincludes=Makefile.in
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='win32'
                fi
                exeext=.exe
                ;;
        i[[3456]]86-*-mingw32)
                tm_file=i386/mingw32.h
                xm_file="${xm_file} i386/xm-mingw32.h"
                tmake_file=i386/t-cygwin32
                extra_objs=winnt.o
                xmake_file=i386/x-cygwin32
                fixincludes=Makefile.in
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='win32'
                fi
                exeext=.exe
                ;;
        i[[3456]]86-*-winnt3*)
                tm_file=i386/win-nt.h
                out_file=i386/i386.c
                xm_file=i386/xm-winnt.h
                xmake_file=winnt/x-winnt
                tmake_file=i386/t-winnt
                extra_host_objs="winnt.o oldnames.o"
                extra_gcc_objs="spawnv.o oldnames.o"
                fixincludes=fixinc.winnt
                if [[ x$gnu_ld != xyes ]]
                then
                        extra_programs=ld.exe
                fi
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='win32'
                fi
                ;;
        i[[3456]]86-dg-dgux)
                xm_file=i386/xm-dgux.h
                out_file=i386/dgux.c
                tm_file=i386/dgux.h
                tmake_file=i386/t-dgux
                xmake_file=i386/x-dgux
                fixincludes=fixinc.dgux
                install_headers_dir=install-headers-cpio
              ;;
        i860-alliant-*)         # Alliant FX/2800
                tm_file="${tm_file} svr4.h i860/sysv4.h i860/fx2800.h"
                xm_file="${xm_file} i860/xm-fx2800.h"
                xmake_file=i860/x-fx2800
                tmake_file=i860/t-fx2800
                extra_parts="crtbegin.o crtend.o"
                ;;
        i860-*-bsd*)
                tm_file="${tm_file} i860/bsd.h"
                if [[ 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_file="${xm_file} xm-svr3.h"
                tmake_file=t-osf
                ;;
        i860-*-sysv3*)
                tm_file="${tm_file} svr3.h i860/sysv3.h"
                xm_file="${tm_file} xm-svr3.h"
                xmake_file=i860/x-sysv3
                extra_parts="crtbegin.o crtend.o"
                ;;
        i860-*-sysv4*)
                tm_file="${tm_file} svr4.h i860/sysv4.h"
                xm_file="${xm_file} xm-svr3.h"
                xmake_file=i860/x-sysv4
                tmake_file=t-svr4
                extra_parts="crtbegin.o crtend.o"
                ;;
        i960-wrs-vxworks5 | i960-wrs-vxworks5.0*)
                tm_file="${tm_file} i960/vx960.h"
                tmake_file=i960/t-vxworks960
                use_collect2=yes
                ;;
        i960-wrs-vxworks5*)
                tm_file="${tm_file} dbxcoff.h i960/i960-coff.h i960/vx960-coff.h"
                tmake_file=i960/t-vxworks960
                use_collect2=yes
                ;;
        i960-wrs-vxworks*)
                tm_file="${tm_file} i960/vx960.h"
                tmake_file=i960/t-vxworks960
                use_collect2=yes
                ;;
        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
                ;;
        m32r-*-elf*)
                extra_parts="crtinit.o crtfini.o"
                ;;
        m68000-convergent-sysv*)
                tm_file=m68k/ctix.h
                xm_file=m68k/xm-3b1.h
                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=m68k/xm-hp320.h
                if [[ x$gas = xyes ]]
                then
                        xmake_file=m68k/x-hp320g
                        tm_file=m68k/hp310g.h
                else
                        xmake_file=m68k/x-hp320
                        tm_file=m68k/hp310.h
                fi
                install_headers_dir=install-headers-cpio
                use_collect2=yes
                extra_headers=math-68881.h
                ;;
        m68000-sun-sunos3*)
                tm_file=m68k/sun2.h
                use_collect2=yes
                extra_headers=math-68881.h
                ;;
        m68000-sun-sunos4*)
                tm_file=m68k/sun2o4.h
                use_collect2=yes
                extra_headers=math-68881.h
                ;;
        m68000-att-sysv*)
                xm_file=m68k/xm-3b1.h
                if [[ x$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_file=m68k/xm-aux.h
                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 [[ "$gnu_ld" = yes ]]
                then
                        tm_file="${tm_file} m68k/auxgld.h"
                else
                        tm_file="${tm_file} m68k/auxld.h"
                fi
                if [[ "$gas" = yes ]]
                then
                        tm_file="${tm_file} m68k/auxgas.h"
                else
                        tm_file="${tm_file} m68k/auxas.h"
                fi
                tm_file="${tm_file} m68k/a-ux.h"
                ;;
        m68k-apollo-*)
                tm_file=m68k/apollo68.h
                xmake_file=m68k/x-apollo68
                use_collect2=yes
                extra_headers=math-68881.h
                ;;
        m68k-altos-sysv*)                  # Altos 3068
                if [[ x$gas = xyes ]]
                then
                        tm_file=m68k/altos3068.h
                        xm_file=m68k/xm-altos3068.h
                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 [[ x$gas = xyes ]]
                then
                        if [[ x$stabs = xyes ]]
                        then
                                tm_file=m68k/dpx2cdbx.h
                        else
                                tm_file=m68k/dpx2g.h
                        fi
                else
                        tm_file=m68k/dpx2.h
                fi
                xm_file=m68k/xm-m68kv.h
                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=m68k/xm-atari.h
                tmake_file=t-svr4
                extra_parts="crtbegin.o crtend.o"
                extra_headers=math-68881.h
                ;;
        m68k-motorola-sysv*)
                tm_file=m68k/mot3300.h
                xm_file=m68k/xm-mot3300.h
                if [[ x$gas = xyes ]]
                then
                        xmake_file=m68k/x-mot3300-gas
                        if [[ x$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 [[ 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
                ;;
        m68k-ncr-sysv*)                 # NCR Tower 32 SVR3
                tm_file=m68k/tower-as.h
                xm_file=m68k/xm-tower.h
                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=m68k/xm-plexus.h
                use_collect2=yes
                extra_headers=math-68881.h
                ;;
        m68k-tti-*)
                tm_file=m68k/pbb.h
                xm_file=m68k/xm-m68kv.h
                extra_headers=math-68881.h
                ;;
        m68k-crds-unos*)
                xm_file=m68k/xm-crds.h
                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=m68k/xm-amix.h
                xmake_file=m68k/x-amix
                tmake_file=t-svr4
                extra_parts="crtbegin.o crtend.o"
                extra_headers=math-68881.h
                ;;
        m68k-ccur-rtu)
                tm_file=m68k/ccur-GAS.h
                xmake_file=m68k/x-ccur
                extra_headers=math-68881.h
                use_collect2=yes
                ;;
        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
                ;;
        m68k-hp-bsd*)                   # HP 9000/3xx running Berkeley Unix
                tm_file=m68k/hp3bsd.h
                use_collect2=yes
                extra_headers=math-68881.h
                ;;
        m68k-isi-bsd*)
                if [[ x$with_fp = xno ]]
                then
                        tm_file=m68k/isi-nfp.h
                else
                        tm_file=m68k/isi.h
                fi
                use_collect2=yes
                extra_headers=math-68881.h
                ;;
        m68k-hp-hpux7*) # HP 9000 series 300 running HPUX version 7.
                xm_file=m68k/xm-hp320.h
                if [[ x$gas = xyes ]]
                then
                        xmake_file=m68k/x-hp320g
                        tm_file=m68k/hp320g.h
                else
                        xmake_file=m68k/x-hp320
                        tm_file=m68k/hpux7.h
                fi
                install_headers_dir=install-headers-cpio
                use_collect2=yes
                extra_headers=math-68881.h
                ;;
        m68k-hp-hpux*)  # HP 9000 series 300
                xm_file=m68k/xm-hp320.h
                if [[ x$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
                ;;
        m68k-sun-mach*)
                tm_file=m68k/sun3mach.h
                use_collect2=yes
                extra_headers=math-68881.h
                ;;
        m68k-sony-newsos3*)
                if [[ x$gas = xyes ]]
                then
                        tm_file=m68k/news3gas.h
                else
                        tm_file=m68k/news3.h
                fi
                use_collect2=yes
                extra_headers=math-68881.h
                ;;
        m68k-sony-bsd* | m68k-sony-newsos*)
                if [[ x$gas = xyes ]]
                then
                        tm_file=m68k/newsgas.h
                else
                        tm_file=m68k/news.h
                fi
                use_collect2=yes
                extra_headers=math-68881.h
                ;;
        m68k-next-nextstep2*)
                tm_file=m68k/next21.h
                xm_file=m68k/xm-next.h
                tmake_file=m68k/t-next
                xmake_file=m68k/x-next
                extra_objs=nextstep.o
                extra_headers=math-68881.h
                use_collect2=yes
                ;;
        m68k-next-nextstep3*)
                tm_file=m68k/next.h
                xm_file=m68k/xm-next.h
                tmake_file=m68k/t-next
                xmake_file=m68k/x-next
                extra_objs=nextstep.o
                extra_headers=math-68881.h
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='mach'
                fi
                ;;
        m68k-sun-sunos3*)
                if [[ x$with_fp = xno ]]
                then
                        tm_file=m68k/sun3n3.h
                else
                        tm_file=m68k/sun3o3.h
                fi
                use_collect2=yes
                extra_headers=math-68881.h
                ;;
        m68k-sun-sunos*)                        # For SunOS 4 (the default).
                if [[ x$with_fp = xno ]]
                then
                        tm_file=m68k/sun3n.h
                else
                        tm_file=m68k/sun3.h
                fi
                xm_file=m68k/xm-sun3.h
                use_collect2=yes
                extra_headers=math-68881.h
                ;;
        m68k-wrs-vxworks*)
                tm_file=m68k/vxm68k.h
                tmake_file=m68k/t-vxworks68
                extra_headers=math-68881.h
                ;;
        m68k-*-aout*)
                tmake_file=m68k/t-m68kbare
                tm_file="m68k/m68k-aout.h libgloss.h"
                extra_headers=math-68881.h
                ;;
        m68k-*-coff*)
                tmake_file=m68k/t-m68kbare
                tm_file="m68k/m68k-coff.h dbx.h libgloss.h"
                extra_headers=math-68881.h
                ;;
        m68k-*-lynxos*)
                if [[ x$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
                ;;
        m68k-*-netbsd*)
                tm_file=m68k/netbsd.h
                xm_file=m68k/xm-netbsd.h
                # On NetBSD, the headers are already okay.
                fixincludes=Makefile.in
                tmake_file=t-netbsd
                ;;
        m68k-*-sysv3*)                  # Motorola m68k's running system V.3
                xm_file=m68k/xm-m68kv.h
                xmake_file=m68k/x-m68kv
                extra_parts="crtbegin.o crtend.o"
                extra_headers=math-68881.h
                ;;
        m68k-*-sysv4*)                  # Motorola m68k's running system V.4
                tm_file=m68k/m68kv4.h
                xm_file=m68k/xm-m68kv.h
                tmake_file=t-svr4
                extra_parts="crtbegin.o crtend.o"
                extra_headers=math-68881.h
                ;;
        m68k-*-linux-gnuaout*)          # Motorola m68k's running Linux
                xm_file=m68k/xm-linux.h # with a.out format
                xmake_file=x-linux
                tm_file=m68k/linux-aout.h
                tmake_file="t-linux-aout m68k/t-linux-aout"
                fixincludes=Makefile.in #On Linux, the headers are ok already.
                extra_headers=math-68881.h
                gnu_ld=yes
                ;;
        m68k-*-linux-gnulibc1)          # Motorola m68k's running Linux
                xm_file=m68k/xm-linux.h # with ELF format using the
                xmake_file=x-linux      # Linux C library 5
                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"
                fixincludes=Makefile.in #On Linux, the headers are ok already.
                extra_headers=math-68881.h
                gnu_ld=yes
                ;;
        m68k-*-linux-gnu*)                      # Motorola m68k's running Linux
                xm_file=m68k/xm-linux.h # with ELF format using glibc 2
                xmake_file=x-linux      # aka the Linux C library 6.
                tm_file=m68k/linux.h
                tmake_file="t-linux m68k/t-linux"
                extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
                fixincludes=Makefile.in #On Linux, the headers are ok already.
                extra_headers=math-68881.h
                gnu_ld=yes
                if [[ 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
                ;;
        m68k-*-rtems*)
                tmake_file="m68k/t-m68kbare t-rtems"
                tm_file=m68k/rtems.h
                extra_headers=math-68881.h
                ;;

        m88k-dg-dgux*)
                case $machine in
                  m88k-dg-dguxbcs*)
                    tm_file=m88k/dguxbcs.h
                    tmake_file=m88k/t-dguxbcs
                    ;;
                  *)
                    tm_file=m88k/dgux.h
                    tmake_file=m88k/t-dgux
                    ;;
                esac
                extra_parts="crtbegin.o bcscrtbegin.o crtend.o m88kdgux.ld"
                xmake_file=m88k/x-dgux
                if [[ x$gas = xyes ]]
                then
                        tmake_file=m88k/t-dgux-gas
                fi
                fixincludes=fixinc.dgux
                ;;
        m88k-dolphin-sysv3*)
                tm_file=m88k/dolph.h
                extra_parts="crtbegin.o crtend.o"
                xm_file=m88k/xm-sysv3.h
                xmake_file=m88k/x-dolph
                if [[ x$gas = xyes ]]
                then
                        tmake_file=m88k/t-m88k-gas
                fi
                ;;
        m88k-tektronix-sysv3)
                tm_file=m88k/tekXD88.h
                extra_parts="crtbegin.o crtend.o"
                xm_file=m88k/xm-sysv3.h
                xmake_file=m88k/x-tekXD88
                if [[ x$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 [[ x$gas = xyes ]]
                then
                        tmake_file=m88k/t-luna-gas
                else
                        tmake_file=m88k/t-luna
                fi
                ;;
        m88k-*-sysv3*)
                tm_file=m88k/sysv3.h
                extra_parts="crtbegin.o crtend.o"
                xm_file=m88k/xm-sysv3.h
                xmake_file=m88k/x-sysv3
                if [[ x$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
                ;;
        mips-sgi-irix6*)                # SGI System V.4., IRIX 6
                tm_file=mips/iris6.h
                xm_file=mips/xm-iris6.h
                fixincludes=fixinc.irix
                xmake_file=mips/x-iris6
                tmake_file=mips/t-iris6
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='irix'
                fi
                ;;
        mips-sgi-irix5cross64)          # Irix5 host, Irix 6 target, cross64
                tm_file=mips/cross64.h
                xm_file=mips/xm-iris5.h
                fixincludes=Makefile.in
                xmake_file=mips/x-iris
                tmake_file=mips/t-cross64
                # See comment in mips/iris[56].h files.
                use_collect2=yes
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='irix'
                fi
                ;;
        mips-sni-sysv4)
                if [[ x$gas = xyes ]]
                then
                        if [[ x$stabs = xyes ]]
                        then
                                tm_file=mips/iris5gdb.h
                        else
                                tm_file=mips/sni-gas.h
                        fi
                else
                        tm_file=mips/sni-svr4.h
                fi
                xm_file=mips/xm-sysv.h
                xmake_file=mips/x-sni-svr4
                tmake_file=mips/t-mips-gas
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mips-sgi-irix5*)                # SGI System V.4., IRIX 5
                if [[ x$gas = xyes ]]
                then
                        tm_file=mips/iris5gas.h
                        if [[ x$stabs = xyes ]]
                        then
                                tm_file="${tm_file} dbx.h"
                        fi
                else
                        tm_file=mips/iris5.h
                fi
                xm_file=mips/xm-iris5.h
                fixincludes=fixinc.irix
                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 [[ x$enable_threads = xyes ]]; then
                        thread_file='irix'
                fi
                ;;
        mips-sgi-irix4loser*)           # Mostly like a MIPS.
                tm_file=mips/iris4loser.h
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                xm_file=mips/xm-iris4.h
                xmake_file=mips/x-iris
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-mips-gas
                else
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='irix'
                fi
                ;;
        mips-sgi-irix4*)                # Mostly like a MIPS.
                tm_file=mips/iris4.h
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                xm_file=mips/xm-iris4.h
                xmake_file=mips/x-iris
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-mips-gas
                else
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='irix'
                fi
                ;;
        mips-sgi-*)                     # Mostly like a MIPS.
                tm_file=mips/iris3.h
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                xm_file=mips/xm-iris3.h
                xmake_file=mips/x-iris3
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-mips-gas
                else
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mips-dec-osfrose*)              # Decstation running OSF/1 reference port with OSF/rose.
                tm_file=mips/osfrose.h
                xmake_file=mips/x-osfrose
                tmake_file=mips/t-osfrose
                extra_objs=halfpic.o
                use_collect2=yes
                ;;
        mips-dec-osf*)                  # Decstation running OSF/1 as shipped by DIGITAL
                tm_file=mips/dec-osf1.h
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                xmake_file=mips/x-dec-osf1
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-mips-gas
                else
                        tmake_file=mips/t-ultrix
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mips-dec-bsd*)                  # Decstation running 4.4 BSD
              tm_file=mips/dec-bsd.h
              fixincludes=
              if [[ x$gas = xyes ]]
              then
                        tmake_file=mips/t-mips-gas
              else
                        tmake_file=mips/t-ultrix
                        extra_passes="mips-tfile mips-tdump"
              fi
              if [[ x$gnu_ld != xyes ]]
              then
                        use_collect2=yes
              fi
              ;;
        mips-dec-netbsd*)                  # Decstation running NetBSD
                tm_file=mips/netbsd.h
                xm_file=mips/xm-netbsd.h
                # On NetBSD, the headers are already okay.
                fixincludes=Makefile.in
                tmake_file=t-netbsd
                if [[ x$prefix = xNONE ]]; then
                        prefix=$native_prefix
                fi
                prefix=$native_prefix
                ;;
        mips-sony-bsd* | mips-sony-newsos*)     # Sony NEWS 3600 or risc/news.
                tm_file=mips/news4.h
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-mips-gas
                else
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$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
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                xm_file=mips/xm-news.h
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-mips-gas
                else
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mips-tandem-sysv4*)             # Tandem S2 running NonStop UX
                tm_file=mips/svr4-t.h
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                xm_file=mips/xm-sysv4.h
                xmake_file=mips/x-sysv
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-mips-gas
                        extra_parts="crtbegin.o crtend.o"
                else
                        tmake_file=mips/t-mips
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mips-*-ultrix* | mips-dec-mach3)        # Decstation.
                tm_file=mips/ultrix.h
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                xmake_file=mips/x-ultrix
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-mips-gas
                else
                        tmake_file=mips/t-ultrix
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mips-*-riscos[[56789]]bsd*)
                tm_file=mips/bsd-5.h    # MIPS BSD 4.3, RISC-OS 5.0
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-bsd-gas
                else
                        tmake_file=mips/t-bsd
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mips-*-bsd* | mips-*-riscosbsd* | mips-*-riscos[[1234]]bsd*)
                tm_file=mips/bsd-4.h    # MIPS BSD 4.3, RISC-OS 4.0
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-bsd-gas
                else
                        tmake_file=mips/t-bsd
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mips-*-riscos[[56789]]sysv4*)
                tm_file=mips/svr4-5.h   # MIPS System V.4., RISC-OS 5.0
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                xm_file=mips/xm-sysv4.h
                xmake_file=mips/x-sysv
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-svr4-gas
                else
                        tmake_file=mips/t-svr4
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mips-*-sysv4* | mips-*-riscos[[1234]]sysv4* | mips-*-riscossysv4*)
                tm_file=mips/svr4-4.h   # MIPS System V.4. RISC-OS 4.0
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                xm_file=mips/xm-sysv.h
                xmake_file=mips/x-sysv
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-svr4-gas
                else
                        tmake_file=mips/t-svr4
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mips-*-riscos[[56789]]sysv*)
                tm_file=mips/svr3-5.h   # MIPS System V.3, RISC-OS 5.0
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                xm_file=mips/xm-sysv.h
                xmake_file=mips/x-sysv
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-svr3-gas
                else
                        tmake_file=mips/t-svr3
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mips-*-sysv* | mips-*-riscos*sysv*)
                tm_file=mips/svr3-4.h   # MIPS System V.3, RISC-OS 4.0
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                xm_file=mips/xm-sysv.h
                xmake_file=mips/x-sysv
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-svr3-gas
                else
                        tmake_file=mips/t-svr3
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mips-*-riscos[[56789]]*)                # Default MIPS RISC-OS 5.0.
                tm_file=mips/mips-5.h
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-mips-gas
                else
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mips-*-gnu*)
                ;;
        mipsel-*-ecoff*)
                tm_file=mips/ecoffl.h
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                tmake_file=mips/t-ecoff
                ;;
        mips-*-ecoff*)
                tm_file=mips/ecoff.h
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                tmake_file=mips/t-ecoff
                ;;
        mipsel-*-elf*)
                tm_file="mips/elfl.h libgloss.h"
                tmake_file=mips/t-ecoff
                ;;
        mips-*-elf*)
                tm_file="mips/elf.h libgloss.h"
                tmake_file=mips/t-ecoff
                ;;
        mips64el-*-elf*)
                tm_file="mips/elfl64.h libgloss.h"
                tmake_file=mips/t-ecoff
                ;;
        mips64orionel-*-elf*)
                tm_file="mips/elflorion.h libgloss.h"
                tmake_file=mips/t-ecoff
                ;;
        mips64-*-elf*)
                tm_file="mips/elf64.h libgloss.h"
                tmake_file=mips/t-ecoff
                ;;
        mips64orion-*-elf*)
                tm_file="mips/elforion.h libgloss.h"
                tmake_file=mips/t-ecoff
                ;;
        mips64orion-*-rtems*)
                tm_file=mips/rtems64.h
                tmake_file="mips/t-ecoff t-rtems"
                ;;
        mips-*-*)                               # Default MIPS RISC-OS 4.0.
                if [[ x$stabs = xyes ]]; then
                        tm_file="${tm_file} dbx.h"
                fi
                if [[ x$gas = xyes ]]
                then
                        tmake_file=mips/t-mips-gas
                else
                        extra_passes="mips-tfile mips-tdump"
                fi
                if [[ x$gnu_ld != xyes ]]
                then
                        use_collect2=yes
                fi
                ;;
        mn10200-*-*)
                cpu_type=mn10200
                tm_file="mn10200/mn10200.h"
                if [[ x$stabs = xyes ]]
                then
                        tm_file="${tm_file} dbx.h"
                fi
                use_collect2=no
                ;;
        mn10300-*-*)
                cpu_type=mn10300
                tm_file="mn10300/mn10300.h"
                if [[ 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_file=ns32k/xm-genix.h
#               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
                use_collect2=yes
                ;;
        ns32k-pc532-netbsd*)
                tm_file=ns32k/netbsd.h
                xm_file=ns32k/xm-netbsd.h
                # On NetBSD, the headers are already okay.
                fixincludes=Makefile.in
                tmake_file=t-netbsd
                ;;
        pdp11-*-bsd)
                tm_file="${tm_file} pdp11/2bsd.h"
                ;;
        pdp11-*-*)
                ;;
        pyramid-*-*)
                cpu_type=pyr
                xmake_file=pyr/x-pyr
                use_collect2=yes
                ;;
        romp-*-aos*)
                use_collect2=yes
                ;;
        romp-*-mach*)
                xmake_file=romp/x-mach
                use_collect2=yes
                ;;
        powerpc-*-sysv* | powerpc-*-elf*)
                tm_file=rs6000/sysv4.h
                xm_file=rs6000/xm-sysv4.h
                extra_headers=ppc-asm.h
                if [[ x$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"
                fixincludes=Makefile.in
                extra_headers=ppc-asm.h
                ;;
        powerpc-*-eabisim*)
                tm_file=rs6000/eabisim.h
                tmake_file="rs6000/t-ppcgas rs6000/t-ppccomm"
                fixincludes=Makefile.in
                extra_headers=ppc-asm.h
                ;;
        powerpc-*-eabi*)
                tm_file=rs6000/eabi.h
                if [[ x$gas = xyes ]]
                then
                        tmake_file="rs6000/t-ppcgas rs6000/t-ppccomm"
                else
                        tmake_file="rs6000/t-ppc rs6000/t-ppccomm"
                fi
                fixincludes=Makefile.in
                extra_headers=ppc-asm.h
                ;;
        powerpc-*-rtems*)
                tm_file=rs6000/rtems.h
                if [[ x$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
                fixincludes=Makefile.in
                extra_headers=ppc-asm.h
                ;;
        powerpc-*-linux-gnu*)
                tm_file=rs6000/linux.h
                xm_file=rs6000/xm-sysv4.h
                out_file=rs6000/rs6000.c
                if [[ x$gas = xyes ]]
                then
                        tmake_file="rs6000/t-ppcos t-linux rs6000/t-ppccomm"
                else
                        tmake_file="rs6000/t-ppc t-linux rs6000/t-ppccomm"
                fi
                xmake_file=x-linux
                fixincludes=Makefile.in
                extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
                extra_headers=ppc-asm.h
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='posix'
                fi
                ;;
        powerpc-*-vxworks*)
                cpu_type=rs6000
                xm_file=rs6000/xm-sysv4.h
                tm_file=rs6000/vxppc.h
                tmake_file="rs6000/t-ppcgas rs6000/t-ppccomm"
                extra_headers=ppc-asm.h
                ;;
        powerpcle-*-sysv* | powerpcle-*-elf*)
                tm_file=rs6000/sysv4le.h
                xm_file=rs6000/xm-sysv4.h
                if [[ x$gas = xyes ]]
                then
                        tmake_file="rs6000/t-ppcos rs6000/t-ppccomm"
                else
                        tmake_file="rs6000/t-ppc rs6000/t-ppccomm"
                fi
                xmake_file=rs6000/x-sysv4
                extra_headers=ppc-asm.h
                ;;
        powerpcle-*-eabisim*)
                tm_file=rs6000/eabilesim.h
                tmake_file="rs6000/t-ppcgas rs6000/t-ppccomm"
                fixincludes=Makefile.in
                extra_headers=ppc-asm.h
                ;;
        powerpcle-*-eabi*)
                tm_file=rs6000/eabile.h
                if [[ x$gas = xyes ]]
                then
                        tmake_file="rs6000/t-ppcgas rs6000/t-ppccomm"
                else
                        tmake_file="rs6000/t-ppc rs6000/t-ppccomm"
                fi
                fixincludes=Makefile.in
                extra_headers=ppc-asm.h
                ;;
        powerpcle-*-winnt* )
                tm_file=rs6000/win-nt.h
                tmake_file=rs6000/t-winnt
#               extra_objs=pe.o
                fixincludes=Makefile.in
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='win32'
                fi
                extra_headers=ppc-asm.h
                ;;
        powerpcle-*-pe | powerpcle-*-cygwin32)
                tm_file=rs6000/cygwin32.h
                xm_file=rs6000/xm-cygwin32.h
                tmake_file=rs6000/t-winnt
                xmake_file=rs6000/x-cygwin32
#               extra_objs=pe.o
                fixincludes=Makefile.in
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='win32'
                fi
                exeext=.exe
                extra_headers=ppc-asm.h
                ;;
        powerpcle-*-solaris2*)
                tm_file=rs6000/sol2.h
                xm_file=rs6000/xm-sysv4.h
                if [[ x$gas = xyes ]]
                then
                        tmake_file="rs6000/t-ppcos rs6000/t-ppccomm"
                else
                        tmake_file="rs6000/t-ppc rs6000/t-ppccomm"
                fi
                xmake_file=rs6000/x-sysv4
                fixincludes=fixinc.svr4
                extra_headers=ppc-asm.h
                ;;
        rs6000-ibm-aix3.[[01]]*)
                tm_file=rs6000/aix31.h
                xmake_file=rs6000/x-aix31
                use_collect2=yes
                ;;
        rs6000-ibm-aix3.2.[[456789]]* | powerpc-ibm-aix3.2.[[456789]]*)
                tm_file=rs6000/aix3newas.h
                if [[ x$host != x$target ]]
                then
                        tmake_file=rs6000/t-xnewas
                else
                        tmake_file=rs6000/t-newas
                fi
                use_collect2=yes
                ;;
        rs6000-ibm-aix[[456789]].* | powerpc-ibm-aix[[456789]].*)
                tm_file=rs6000/aix41.h
                if [[ x$host != x$target ]]
                then
                        tmake_file=rs6000/t-xnewas
                else
                        tmake_file=rs6000/t-newas
                fi
                xmake_file=rs6000/x-aix31
                use_collect2=yes
                ;;
        rs6000-ibm-aix*)
                use_collect2=yes
                ;;
        rs6000-bull-bosx)
                use_collect2=yes
                ;;
        rs6000-*-mach*)
                tm_file=rs6000/mach.h
                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-*-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=sparc/xm-pbd.h
                ;;
        sparc-wrs-vxworks* | sparclite-wrs-vxworks*)
                tm_file=sparc/vxsparc.h
                tmake_file=sparc/t-vxsparc
                use_collect2=yes
                ;;
        sparc-*-aout*)
                tmake_file=sparc/t-sparcbare
                tm_file="sparc/aout.h libgloss.h"
                ;;
        sparc-*-netbsd*)
                tm_file=sparc/netbsd.h
                xm_file=sparc/xm-netbsd.h
                # On NetBSD, the headers are already okay.
                fixincludes=Makefile.in
                tmake_file=t-netbsd
                ;;
        sparc-*-bsd*)
                tm_file=sparc/bsd.h
                ;;
        sparc-*-linux-gnuaout*)         # Sparc's running Linux, a.out
                xm_file=sparc/xm-linux.h
                tm_file=sparc/linux-aout.h
                xmake_file=x-linux
                fixincludes=Makefile.in #On Linux, the headers are ok already.
                gnu_ld=yes
                ;;
        sparc-*-linux-gnulibc1*)                 # Sparc's running Linux
                xm_file=sparc/xm-linux.h # with ELF format using the
                xmake_file=x-linux       # Linux C library 5.
                tm_file=sparc/linux.h
                tmake_file="t-linux t-linux-gnulibc1 sparc/t-linux"
                extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
                fixincludes=Makefile.in #On Linux, the headers are ok already.
                gnu_ld=yes
                ;;
        sparc-*-linux-gnu*)                      # Sparc's running Linux
                xm_file=sparc/xm-linux.h # with ELF format using glibc 2
                xmake_file=x-linux       # aka the Linux C library 6.
                tm_file=sparc/linux.h
                tmake_file="t-linux sparc/t-linux"
                extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
                fixincludes=Makefile.in #On Linux, the headers are ok already.
                gnu_ld=yes
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='posix'
                fi
                ;;
        sparc-*-lynxos*)
                if [[ x$gas = xyes ]]
                then
                        tm_file=sparc/lynx.h
                else
                        tm_file=sparc/lynx-ng.h
                fi
                xm_file=sparc/xm-lynx.h
                tmake_file=sparc/t-sunos41
                xmake_file=x-lynx
                ;;
        sparc-*-rtems*)
                tmake_file="sparc/t-sparcbare t-rtems"
                tm_file=sparc/rtems.h
                ;;
        sparc-*-solaris2*)
                tm_file=sparc/sol2.h
                xm_file=sparc/xm-sol2.h
                tmake_file=sparc/t-sol2
                xmake_file=sparc/x-sysv4
                extra_parts="crt1.o crti.o crtn.o gcrt1.o gmon.o crtbegin.o crtend.o"
                fixincludes=fixinc.svr4
                if [[ x$enable_threads = xyes ]]; then
                        thread_file='solaris'
                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
                ;;
        sparc-*-sunos3*)
                tm_file=sparc/sun4o3.h
                use_collect2=yes
                ;;
        sparc-*-sysv4*)
                tm_file=sparc/sysv4.h
                xm_file=sparc/xm-sysv4.h
                tmake_file=t-svr4
                xmake_file=sparc/x-sysv4
                extra_parts="crtbegin.o crtend.o"
                ;;
        sparc-*-vxsim*)
                xm_file=sparc/xm-sol2.h
                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
                ;;
        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"
                ;;
# This hasn't been upgraded to GCC 2.
#       tahoe-harris-*)                 # Harris tahoe, using COFF.
#               tm_file=tahoe/harris.h
#               ;;
#       tahoe-*-bsd*)                   # tahoe running BSD
#               ;;
# This hasn't been upgraded to GCC 2.
#       tron-*-*)
#               cpu_type=gmicro
#               use_collect2=yes
#               ;;
        v850-*-*)
                cpu_type=v850
                tm_file="v850/v850.h"
                xm_file="v850/xm-v850.h"
                if [[ 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="${tm_file} vax/vaxv.h"
                xm_file="${tm_file} vax/xm-vaxv.h"
                float_format=vax
                ;;
        vax-*-netbsd*)
                tm_file="${tm_file} netbsd.h vax/netbsd.h"
                xm_file="${xm_file} xm-netbsd.h"
                # On NetBSD, the headers are already okay.
                fixincludes=Makefile.in
                tmake_file=t-netbsd
                float_format=vax
                ;;
        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 Linux/GNU 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 $cpu_type.
                xm_file=${cpu_type}/xm-gnu.h
                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
                # On GNU, the headers are already okay.
                fixincludes=Makefile.in
                xmake_file=x-linux      # These details are the same as Linux.
                tmake_file=t-gnu        # These are not.
                ;;
        *-*-sysv4*)
                fixincludes=fixinc.svr4
                xmake_try_sysv=x-sysv
                install_headers_dir=install-headers-cpio
                ;;
        *-*-sysv*)
                install_headers_dir=install-headers-cpio
                ;;
        esac

        # Distinguish i[3456]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-*-*)
                target_cpu_default2=2
                ;;
        i686-*-*)
                target_cpu_default2=3
                ;;
        alpha*-*-*)
                case $machine in
                        alphaev56*)
                                target_cpu_default2="MASK_CPU_EV5|MASK_BYTE_OPS"
                                ;;
                        alphaev5*)
                                target_cpu_default2="MASK_CPU_EV5"
                                ;;
                esac
                                
                if [[ x$gas = xyes ]]
                then
                        if [[ x$target_cpu_default2 = x ]]
                        then
                                target_cpu_default2="MASK_GAS"
                        else
                                target_cpu_default2="${target_cpu_default2}|MASK_GAS"
                        fi
                fi
                ;;
        mips*-*-ecoff* | mips*-*-elf*)
                if [[ x$gas = xyes ]]
                then
                        if [[ x$gnu_ld = xyes ]]
                        then
                                target_cpu_default2=20
                        else
                                target_cpu_default2=16
                        fi
                fi
                ;;
        mips*-*-*)
                if [[ x$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 \
                          | 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
                                ;;

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

        if [[ x$target_cpu_default2 != x ]]
        then
                if [[ x$target_cpu_default != x ]]
                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.
        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 [[ x$pass1done = x ]]
        then
                if [[ x"$xm_file" = x ]]
                then build_xm_file=$cpu_type/xm-$cpu_type.h
                else build_xm_file=$xm_file
                fi
                build_install_headers_dir=$install_headers_dir
                build_exeext=$exeext
                pass1done=yes
        else
                if [[ x$pass2done = x ]]
                then
                        if [[ x"$xm_file" = x ]]
                        then host_xm_file=$cpu_type/xm-$cpu_type.h
                        else host_xm_file=$xm_file
                        fi
                        if [[ 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
                        pass2done=yes
                fi
        fi
done

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

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

if [[ x$extra_headers = x ]]
then extra_headers=; fi

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

md_file=$cpu_type/$cpu_type.md

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

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

if [[ x$float_format = x ]]
then float_format=i64
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 [[ $count = ax ]]; then
        echo "Using \`$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 [[ $count = ax ]]; then
        echo "Using \`$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 [[ "$host_xm_file" != "$build_xm_file" ]]; then
        count=a
        for f in $build_xm_file; do
                count=${count}x
        done
        if [[ $count = ax ]]; then
                echo "Using \`$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 [[ x$thread_file = x ]]
then thread_file='single'
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.
# config2.h is the old config.h.  It is included by the new config.h which
# created from config.in.  The goal is to simplify the transition to autoconf.
vars="host_xm_file tm_file xm_file build_xm_file"
links="config2.h tm.h tconfig.h hconfig.h"

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

# Make the links.
while [[ -n "$vars" ]]
do
        # set file to car of files, files to cdr of files
        set $vars; var=$1; shift; vars=$*
        set $links; link=$1; shift; links=$*

        rm -f $link

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

        for file in `eval echo '$'$var`; do
                echo "#include \"$file\"" >>$link
        done
done

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

# Get the version number from the toplevel
version=`sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/' < ${srcdir}/version.c`

# Are we using gcc as the native compiler?
case $host in
*linux*)        # All Linux's use gcc as the native compiler.
        if [[ x$prefix = xNONE ]]; then
                prefix=$native_prefix
        fi
        ;;
esac

# 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 [[ -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 [[ -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 symtest1.tem symtest.tem 2>/dev/null
then
        cc_set_by_configure="\$(CC)"
        stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
else
        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 $tm_file; do
        tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
done

host_xm_file_list=
for f in $host_xm_file; do
        host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
done

build_xm_file_list=
for f in $build_xm_file; do
        build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
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 [[ 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 [[ 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 [[ "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

# 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 [[ x$use_collect2 = x ]]
then
        will_use_collect2=
        maybe_use_collect2=
else
        will_use_collect2="ld"
        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 [[ "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 [[ -f ../gas/Makefile ]]; then
        rm -f as; $symbolic_link ../gas/as-new as 2>/dev/null
fi

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

# Figure out what language subdirectories are present.
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.
        ${srcdir}/[[*]]/config-lang.in) ;;
        *) subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([[^/]]*\)/config-lang.in$,\1,'`" ;;
        esac
done

# 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=
rm -f specs.h options.h
touch specs.h options.h
for subdir in . $subdirs
do
        if [[ -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 [[ -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
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
# 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 [[ $s != ".." ]]
        then
                language=
                boot_language=
                compilers=
                stagestuff=
                diff_excludes=
                headers=
                outputs=
                lib2funcs=
                . ${srcdir}/$s/config-lang.in
                if [[ "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 $language"
                if [[ "x$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 $outputs"
                if [[ x$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 l in .. $all_languages
        do
                if [[ $l != ".." ]]; then
                        x="$x $l.$t"
                fi
        done
        echo "lang.$t: $x" >> Make-hooks
done

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

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

# Override SCHED_OBJ and SCHED_CFLAGS to enable the Haifa scheduler.
sched_prefix=
sched_cflags=
if [[ x$enable_haifa = xyes ]]; then
    echo "Using the Haifa scheduler."
    sched_prefix=haifa-
    sched_cflags=-DHAIFA
fi
AC_SUBST(sched_prefix)
AC_SUBST(sched_cflags)
if [[ x$enable_haifa != x ]]; then
    # Explicitly remove files that need to be recompiled for the Haifa scheduler.
    for x in genattrtab.o toplev.o loop.o unroll.o *sched.o; do
        if [[ -f $x ]]; then
            echo "Removing $x"
            rm -f $x
        fi
    done
fi

# 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_languages)
AC_SUBST(all_boot_languages)
AC_SUBST(all_compilers)
AC_SUBST(all_lang_makefiles)
AC_SUBST(all_stagestuff)
AC_SUBST(all_diff_excludes)
AC_SUBST(all_lib2funcs)
AC_SUBST(all_headers)
AC_SUBST(extra_passes)
AC_SUBST(extra_programs)
AC_SUBST(extra_parts)
AC_SUBST(extra_c_objs)
AC_SUBST(extra_c_flags)
AC_SUBST(extra_objs)
AC_SUBST(host_extra_gcc_objs)
AC_SUBST(extra_headers_list)
AC_SUBST(dep_host_xmake_file)
AC_SUBST(dep_tmake_file)
AC_SUBST(out_file)
AC_SUBST(out_object_file)
AC_SUBST(md_file)
AC_SUBST(tm_file_list)
AC_SUBST(build_xm_file_list)
AC_SUBST(host_xm_file_list)
AC_SUBST(lang_specs_files)
AC_SUBST(lang_options_files)
AC_SUBST(thread_file)
AC_SUBST(version)
AC_SUBST(local_prefix)
AC_SUBST(gxx_include_dir)
AC_SUBST(fixincludes)
AC_SUBST(build_install_headers_dir)
AC_SUBST(build_exeext)
AC_SUBST(float_format)
AC_SUBST(will_use_collect2)
AC_SUBST(maybe_use_collect2)
AC_SUBST(cc_set_by_configure)
AC_SUBST(stage_prefix_set_by_configure)

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 [[ x$host = x$target ]]
then
        str1="native "
else
        str1="cross-"
        str2=" from $host"
fi

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

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

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

if [[ "x$str2" != x ]] || [[ "x$str3" != x ]]
then
        echo " ${str2}${str3}." 1>&2
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
xconfig.h:config.in)
echo > cstamp-h ;;
esac
],
[
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='${thread_file}'
version='${version}'
local_prefix='${local_prefix}'
build_install_headers_dir='${build_install_headers_dir}'
build_exeext='${build_exeext}'
out_file='${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}'
])