configure.ac (mips*-*-*): Print an error if not using GAS.

[thirdparty/gcc.git] / gcc / config.gcc

# GCC target-specific configuration file.
# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
# Free Software Foundation, Inc.

#This file is part of GCC.

#GCC 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.

#GCC 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 GCC; see the file COPYING.  If not, write to the Free
#Software Foundation, 59 Temple Place - Suite 330, Boston, MA
#02111-1307, USA.

# This is the GCC target-specific configuration file
# where a configuration type is mapped to different system-specific
# definitions and files.  This is invoked by the autoconf-generated
# configure script.  Putting it in a separate shell file lets us skip
# running autoconf when modifying target-specific information.

# This file switches on the shell variable ${target}, and also uses the
# following shell variables:
#
#  with_*               Various variables as set by configure.
#
#  enable_threads       Either the name, yes or no depending on whether
#                       threads support was requested.
#
#  default_use_cxa_atexit
#                       "no" by default, can be set to "yes" if a target
#                       wishes to use __cxa_atexit() by default if the
#                       $enable___cxa_atexit variable is not set.
#
#  gas_flag             Either yes or no depending on whether GNU as was
#                       requested.
#
#  gnu_ld_flag          Either yes or no depending on whether GNU ld was
#                       requested.

# This file sets the following shell variables for use by the
# autoconf-generated configure script:
#
#  cpu_type             The name of the cpu, if different from the first
#                       chunk of the canonical target name.
#
#  tm_defines           List of target macros to define for all compilations.
#
#  tm_file              A list of target macro files, if different from
#                       "$cpu_type/$cpu_type.h". Usually it's constructed
#                       per target in a way like this:
#                       tm_file="${tm_file} dbxelf.h elfos.h svr4.h ${cpu_type.h}/elf.h"
#                       Note that the preferred order is:
#                       - specific target header "${cpu_type}/${cpu_type.h}"
#                       - generic headers like dbxelf.h elfos.h, etc.
#                       - specializing target headers like ${cpu_type.h}/elf.h
#                       This helps to keep OS specific stuff out of the CPU
#                       defining header ${cpu_type}/${cpu_type.h}.
#
#  tm_p_file            Location of file with declarations for functions
#                       in $out_file.
#
#  out_file             The name of the machine description C support
#                       file, if different from "$cpu_type/$cpu_type.c".
#
#  md_file              The name of the machine-description file, if
#                       different from "$cpu_type/$cpu_type.md".
#
#  tmake_file           A list of machine-description-specific
#                       makefile-fragments, if different from
#                       "$cpu_type/t-$cpu_type".
#
#  extra_modes          The name of the file containing a list of extra
#                       machine modes, if necessary and different from
#                       "$cpu_type/$cpu_type-modes.def".
#
#  extra_objs           List of extra objects that should be linked into
#                       the compiler proper (cc1, cc1obj, cc1plus)
#                       depending on target.
#
#  extra_gcc_objs       List of extra objects that should be linked into
#                       the compiler driver (gcc) depending on target.
#
#  extra_headers        List of used header files from the directory
#                       config/${cpu_type}.
#
#  extra_passes         List of extra executables compiled for this target
#                       machine, used for compiling from source to object.
#
#  extra_parts          List of extra object files that should be compiled
#                       for this target machine.
#
#  extra_programs       Like extra_passes, but these are used when linking.
#
#  c_target_objs        List of extra target-dependent objects that be
#                       linked into the C compiler only.
#
#  cxx_target_objs      List of extra target-dependent objects that be
#                       linked into the C++ compiler only.
#
#  target_gtfiles       List of extra source files with type information.
#
#  xm_defines           List of macros to define when compiling for the
#                       target machine.
#
#  xm_file              List of files to include when compiling for the
#                       target machine.
#
#  use_collect2         Set to yes or no, depending on whether collect2
#                       will be used.
#
#  target_cpu_default   Set to override the default target model.
#
#  gdb_needs_out_file_path
#                       Set to yes if gdb needs a dir command with
#                       `dirname $out_file`.
#
#  thread_file          Set to control which thread package to use.
#
#  gas                  Set to yes or no depending on whether the target
#                       system normally uses GNU as.
#
#  need_64bit_hwint     Set to yes if HOST_WIDE_INT must be 64 bits wide
#                       for this target.  This is true iff this target
#                       supports "long" or "wchar_t" wider than 32 bits.
#
#  configure_default_options
#                       Set to an initializer for configure_default_options
#                       in configargs.h, based on --with-cpu et cetera.
#
#  use_fixproto         Set to "yes" if fixproto should be run normally,
#                       "no" if fixproto should never be run.

# The following variables are used in each case-construct to build up the
# outgoing variables:
#
#  gnu_ld               Set to yes or no depending on whether the target
#                       system normally uses GNU ld.

out_file=
tmake_file=
extra_headers=
extra_passes=
extra_parts=
extra_programs=
extra_objs=
extra_gcc_objs=
c_target_objs=
cxx_target_objs=
tm_defines=
xm_defines=
# Set this to force installation and use of collect2.
use_collect2=
# Set this to override the default target model.
target_cpu_default=
# Set this if gdb needs a dir command with `dirname $out_file`
gdb_needs_out_file_path=
# Set this to control which thread package will be used.
thread_file=
# Reinitialize these from the flag values every loop pass, since some
# configure entries modify them.
gas="$gas_flag"
gnu_ld="$gnu_ld_flag"
default_use_cxa_atexit=no
target_gtfiles=
need_64bit_hwint=

# Default to not using fixproto.  Targets which need fixproto should
# specifically set this to 'yes'.
use_fixproto=no

# Don't carry these over build->host->target.  Please.
xm_file=
md_file=

# Obsolete configurations.
case ${target} in
 dummy*)
    if test "x$enable_obsolete" != xyes; then
      echo "*** Configuration ${target} is obsolete." >&2
      echo "*** Specify --enable-obsolete to build it anyway." >&2
      echo "*** Support will be REMOVED in the next major release of GCC," >&2
      echo "*** unless a maintainer comes forward." >&2
      exit 1
    fi;;
esac

# Unsupported targets list.  Do not put an entry in this list unless
# it would otherwise be caught by a more permissive pattern.  The list
# should be in alphabetical order.
case ${target} in
   alpha*-*-linux*libc1*                \
 | i[34567]86-sequent-sysv              \
 | i[34567]86-sequent-sysv[123]*        \
 | i[34567]86-go32-*                    \
 | i[34567]86-*-go32*                   \
 | m68k-*-linux*aout*                   \
 | m68k-*-linux*libc1*                  \
 | mips64orion*-*-rtems*                \
 | powerpc-*-linux*libc1*               \
 | sparc-*-linux*aout*                  \
 | sparc-*-linux*libc1*                 \
 | sparc-hal-solaris2*                  \
 | thumb-*-*                            \
 | *-*-linux*coff*                      \
 | *-*-linux*oldld*                     \
 | *-*-rtemsaout*                       \
 | *-*-rtemscoff*                       \
 | vax-*-vms*                           \
 )
        echo "*** Configuration ${target} not supported" 1>&2
        exit 1
        ;;
esac

# Set default cpu_type, tm_file, tm_p_file and xm_file so it can be
# updated in each machine entry.  Also set default extra_headers for some
# machines.
tm_p_file=
cpu_type=`echo ${target} | sed 's/-.*$//'`
case ${target} in
alpha*-*-*)
        cpu_type=alpha
        need_64bit_hwint=yes
        ;;
am33_2.0-*-linux*)
        cpu_type=mn10300
        ;;
strongarm*-*-*)
        cpu_type=arm
        ;;
arm*-*-*)
        cpu_type=arm
        extra_headers="mmintrin.h"
        ;;
ep9312*-*-*)
        cpu_type=arm
        ;;
xscale-*-*)
        cpu_type=arm
        extra_headers="mmintrin.h"
        ;;
i[34567]86-*-*)
        cpu_type=i386
        extra_headers="mmintrin.h mm3dnow.h xmmintrin.h emmintrin.h pmmintrin.h"
        ;;
x86_64-*-*)
        cpu_type=i386
        extra_headers="mmintrin.h mm3dnow.h xmmintrin.h emmintrin.h pmmintrin.h"
        need_64bit_hwint=yes
        ;;
ia64-*-*)
        extra_headers=ia64intrin.h
        need_64bit_hwint=yes
        ;;
hppa*-*-* | parisc*-*-*)
        cpu_type=pa
        ;;
m32r*-*-*)
        cpu_type=m32r
        ;;
m680[012]0-*-*)
        cpu_type=m68k
        extra_headers=math-68881.h
        ;;
m68k-*-*)
        extra_headers=math-68881.h
        ;;
mips*-*-*)
        cpu_type=mips
        need_64bit_hwint=yes
        ;;
powerpc*-*-*)
        cpu_type=rs6000
        extra_headers="ppc-asm.h altivec.h spe.h"
        need_64bit_hwint=yes
        ;;
rs6000*-*-*)
        need_64bit_hwint=yes
        ;;
sparc64*-*-*)
        cpu_type=sparc
        need_64bit_hwint=yes
        ;;
sparc*-*-*)
        cpu_type=sparc
        ;;
s390*-*-*)
        need_64bit_hwint=yes
        ;;
# Note the 'l'; we need to be able to match e.g. "shle" or "shl".
sh[123456789lbe]*-*-*)
        cpu_type=sh
        need_64bit_hwint=yes
        ;;
tic4x-*-*)
        cpu_type=c4x
        ;;
esac

tm_file=${cpu_type}/${cpu_type}.h
if test -f ${srcdir}/config/${cpu_type}/${cpu_type}-protos.h
then
        tm_p_file=${cpu_type}/${cpu_type}-protos.h
fi
extra_modes=
if test -f ${srcdir}/config/${cpu_type}/${cpu_type}-modes.def
then
        extra_modes=${cpu_type}/${cpu_type}-modes.def
fi

case ${target} in
x86_64-*-*)
        tm_file="i386/biarch64.h ${tm_file}"
        ;;
esac

# On a.out targets, we need to use collect2.
case ${target} in
*-*-*aout*)
        use_collect2=yes
        ;;
esac

# Common parts for widely ported systems.
case ${target} in
*-*-darwin*)
  case ${target} in
    *-darwin[0-6]*) ;;
    *) tm_file="${tm_file} darwin7.h" ;;
  esac
  tm_file="${tm_file} darwin.h"
  tm_p_file="${tm_p_file} darwin-protos.h"
  tmake_file="t-darwin t-slibgcc-darwin"
  target_gtfiles="\$(srcdir)/config/darwin.c"
  c_target_objs="darwin-c.o"
  cxx_target_objs="darwin-c.o"
  extra_parts="crt2.o"
  extra_objs="darwin.o"
  case ${enable_threads} in
    "" | yes | posix) thread_file='posix' ;;
  esac
  ;;
*-*-freebsd[12] | *-*-freebsd[12].* | *-*-freebsd*aout*)
  # This is the place-holder for the generic a.out configuration
  # of FreeBSD.  No actual configuration resides here since
  # there was only ever a bare-bones ix86 configuration for
  # a.out and it exists solely in the machine-specific section.
  # This place-holder must exist to avoid dropping into
  # the generic ELF configuration of FreeBSD (i.e. it must be
  # ordered before that section).
  ;;
*-*-freebsd*)
  # This is the generic ELF configuration of FreeBSD.  Later
  # machine-specific sections may refine and add to this
  # configuration.
  #
  # Due to tm_file entry ordering issues that vary between cpu
  # architectures, we only define fbsd_tm_file to allow the
  # machine-specific section to dictate the final order of all
  # entries of tm_file with the minor exception that components
  # of the tm_file set here will always be of the form:
  #
  # freebsd<version_number>.h [freebsd-<conf_option>.h ...] freebsd-spec.h freebsd.h
  #
  # The machine-specific section should not tamper with this
  # ordering but may order all other entries of tm_file as it
  # pleases around the provided core setting.
  gas=yes
  gnu_ld=yes
  extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
  case ${target} in
    *-*-freebsd3 | *-*-freebsd[3].*)
      tm_defines="${tm_defines} FBSD_MAJOR=3" ;;
    *-*-freebsd4 | *-*-freebsd[4].*)
      tm_defines="${tm_defines} FBSD_MAJOR=4" ;;
    *-*-freebsd5 | *-*-freebsd[5].*)
      tm_defines="${tm_defines} FBSD_MAJOR=5" ;;
    *-*-freebsd6 | *-*-freebsd[6].*)
      tm_defines="${tm_defines} FBSD_MAJOR=6" ;;
    *)
      echo 'Please update *-*-freebsd* in gcc/config.gcc'
      exit 1
      ;;
  esac
  tmake_file="t-slibgcc-elf-ver t-freebsd"
  case ${enable_threads} in
    no)
      fbsd_tm_file="${fbsd_tm_file} freebsd-nthr.h"
      ;;
    "" | yes | posix)
      thread_file='posix'
      tmake_file="${tmake_file} t-freebsd-thread"
      # Before 5.0, FreeBSD can't bind shared libraries to -lc
      # when "optionally" threaded via weak pthread_* checks.
      case ${target} in
        *-*-freebsd[34] | *-*-freebsd[34].*)
          tmake_file="${tmake_file} t-slibgcc-nolc-override"
          ;;
      esac
      ;;
    *) 
      echo 'Unknown thread configuration for FreeBSD'
      exit 1
      ;;
  esac
  fbsd_tm_file="${fbsd_tm_file} freebsd-spec.h freebsd.h"
  ;;
*-*-linux*libc1* | *-*-linux*aout*)
  # Avoid the generic linux case.
  ;;
*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
  # Must come before *-*-gnu* (because of *-*-linux-gnu* systems).
  extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
  gas=yes
  gnu_ld=yes
  case ${enable_threads} in
    "" | yes | posix) thread_file='posix' ;;
  esac
  tmake_file="t-slibgcc-elf-ver t-linux"
  ;;
*-*-gnu*)
  # On the Hurd, the setup is just about the same on
  # each different CPU.  The specific machines that we
  # support are matched above and just set $cpu_type.
  tm_file="${cpu_type}/gnu.h"
  extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o"
  # GNU tools are the only tools.
  gas=yes
  gnu_ld=yes
  # These details are the same as for Linux.
  # But here we need a little extra magic.
  tmake_file="t-slibgcc-elf-ver t-linux t-gnu"
  case ${target} in
    alpha*)
      tm_file="${cpu_type}/${cpu_type}.h alpha/elf.h alpha/linux.h alpha/linux-elf.h gnu.h ${tm_file}"
      ;;
    i[34567]86-*-*)
      tm_file="${cpu_type}/${cpu_type}.h i386/unix.h i386/att.h dbxelf.h elfos.h svr4.h linux.h i386/linux.h gnu.h ${tm_file}"
      ;;
  esac
  ;;
*-*-netbsd*)
  tmake_file="t-slibgcc-elf-ver t-libc-ok t-netbsd t-libgcc-pic"
  gas=yes
  gnu_ld=yes

  # NetBSD 2.0 and later get POSIX threads enabled by default.
  # Allow them to be explicitly enabled on any other version.
  case ${enable_threads} in
    "")
      case ${target} in
        *-*-netbsd[2-9]* | *-*-netbsdelf[2-9]*)
          thread_file='posix'
          tm_defines="${tm_defines} NETBSD_ENABLE_PTHREADS"
          ;;
      esac
      ;;
    yes | posix)
      thread_file='posix'
      tm_defines="${tm_defines} NETBSD_ENABLE_PTHREADS"
      ;;
  esac

  # NetBSD 1.7 and later are set up to use GCC's crtstuff for
  # ELF configurations.  We will clear extra_parts in the
  # a.out configurations.
  case ${target} in
    *-*-netbsd*1.[7-9]* | *-*-netbsd[2-9]* | *-*-netbsdelf[2-9]*)
      extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o"
      ;;
  esac

  # NetBSD 2.0 and later provide __cxa_atexit(), which we use by
  # default (unless overridden by --disable-__cxa_atexit).
  case ${target} in
    *-*-netbsd[2-9]* | *-*-netbsdelf[2-9]*)
      default_use_cxa_atexit=yes
      ;;
  esac
  ;;
*-*-openbsd*)
  tmake_file="t-libc-ok t-openbsd t-libgcc-pic"
  case ${enable_threads} in
    yes)
      thread_file='posix'
      tmake_file="${tmake_file} t-openbsd-thread"
      ;;
  esac
  ;;
*-*-rtems*)
  case ${enable_threads} in
    yes) thread_file='rtems' ;;
  esac
  ;;
*-*-vxworks*)
  tmake_file=t-vxworks
  tm_file="${tm_file} elfos.h svr4.h vxworks.h"
  case ${enable_threads} in
    no) ;;
    "" | yes | vxworks) thread_file='vxworks' ;;
    *) echo 'Unknown thread configuration for VxWorks'; exit 1 ;;
  esac
  use_collect2=yes
  xm_defines=POSIX
  ;;
esac

case ${target} in
# Support site-specific machine types.
*local*)
        rest=`echo ${target} | sed -e "s/$cpu_type-//"`
        tm_file=${cpu_type}/$rest.h
        if test -f $srcdir/config/${cpu_type}/xm-$rest.h
        then xm_file=${cpu_type}/xm-$rest.h
        fi
        if test -f $srcdir/config/${cpu_type}/t-$rest
        then tmake_file=${cpu_type}/t-$rest
        fi
        ;;
alpha*-*-unicosmk*)
        use_collect2=yes
        tm_file="${tm_file} alpha/unicosmk.h"

        # Don't include t-ieee for now because we don't support that yet
        # tmake_file="alpha/t-ieee"
        tmake_file="alpha/t-unicosmk"
        use_fixproto=yes
        ;;
alpha*-*-linux*)
        tm_file="${tm_file} alpha/elf.h alpha/linux.h alpha/linux-elf.h"
        target_cpu_default="MASK_GAS"
        tmake_file="${tmake_file} alpha/t-crtfm alpha/t-alpha alpha/t-ieee"
        ;;
alpha*-*-gnu*)
        target_cpu_default="MASK_GAS"
        tmake_file="${tmake_file} alpha/t-crtfm alpha/t-alpha alpha/t-ieee"
        ;;
alpha*-*-freebsd*)
        tm_file="${tm_file} ${fbsd_tm_file} alpha/elf.h alpha/freebsd.h"
        target_cpu_default="MASK_GAS"
        tmake_file="${tmake_file} alpha/t-crtfm alpha/t-alpha alpha/t-ieee"
        extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o"
        ;;
alpha*-*-netbsd*)
        tm_file="${tm_file} netbsd.h alpha/elf.h netbsd-elf.h alpha/netbsd.h"
        target_cpu_default="MASK_GAS"
        tmake_file="${tmake_file} alpha/t-alpha alpha/t-ieee"
        ;;
alpha*-*-openbsd*)
        tm_defines="OBSD_NO_DYNAMIC_LIBRARIES OBSD_HAS_DECLARE_FUNCTION_NAME OBSD_HAS_DECLARE_FUNCTION_SIZE OBSD_HAS_DECLARE_OBJECT"
        tm_file="alpha/alpha.h openbsd.h alpha/openbsd.h"
        # default x-alpha is only appropriate for dec-osf.
        target_cpu_default="MASK_GAS"
        tmake_file="alpha/t-alpha alpha/t-ieee"
        ;;
alpha*-dec-osf[45]*)
        if test x$stabs = xyes
        then
                tm_file="${tm_file} dbx.h"
        fi
        if test x$gas != xyes
        then
                extra_passes="mips-tfile mips-tdump"
        fi
        use_collect2=yes
        tmake_file="alpha/t-alpha alpha/t-ieee alpha/t-crtfm alpha/t-osf4"
        tm_file="${tm_file} alpha/osf.h"
        extra_headers=va_list.h
        case ${target} in
          *-*-osf4*)
            # Set target_cpu_default except on 4.0a.
            case ${target} in
                *-*-osf4.0a) ;;
                *) target_cpu_default=MASK_SUPPORT_ARCH
            esac
            ;;
          *-*-osf5*)
            tm_file="${tm_file} alpha/osf5.h"
            target_cpu_default=MASK_SUPPORT_ARCH
            ;;
        esac
        case ${enable_threads} in
          "" | yes | posix)
            thread_file='posix'
            tmake_file="${tmake_file} alpha/t-osf-pthread"
            ;;
        esac
        ;;
alpha64-dec-*vms*)
        tm_file="${tm_file} alpha/vms.h alpha/vms64.h"
        xm_file="alpha/xm-vms.h"
        tmake_file="alpha/t-alpha alpha/t-vms alpha/t-vms64 alpha/t-ieee"
        prefix=/gnu
        local_prefix=/gnu
        ;;
alpha*-dec-*vms*)
        tm_file="${tm_file} alpha/vms.h"
        xm_file=alpha/xm-vms.h
        tmake_file="alpha/t-alpha alpha/t-vms alpha/t-ieee"
        prefix=/gnu
        local_prefix=/gnu
        ;;
arc-*-elf*)
        tm_file="dbxelf.h elfos.h svr4.h ${tm_file}"
        extra_parts="crtinit.o crtfini.o"
        use_fixproto=yes
        ;;
arm-*-coff* | armel-*-coff*)
        tm_file="arm/semi.h arm/aout.h arm/arm.h arm/coff.h dbxcoff.h"
        tmake_file="arm/t-arm arm/t-arm-coff"
        ;;
arm-semi-aof | armel-semi-aof)
        tm_file="arm/semiaof.h arm/aof.h arm/arm.h"
        tmake_file="arm/t-arm arm/t-semi"
        ;;
arm-wrs-vxworks)
        tm_file="dbxelf.h elfos.h svr4.h vxworks.h arm/elf.h arm/aout.h arm/arm.h arm/vxworks.h"
        tmake_file="${tmake_file} arm/t-arm arm/t-vxworks"
        ;;
arm*-*-freebsd*|strongarm*-*-freebsd*)
        tm_file="dbxelf.h elfos.h ${fbsd_tm_file} arm/elf.h arm/aout.h arm/freebsd.h arm/arm.h"
        tmake_file="${tmake_file} arm/t-arm arm/t-strongarm-elf"
        ;;
arm*-*-netbsdelf*)
        tm_file="dbxelf.h elfos.h netbsd.h netbsd-elf.h arm/elf.h arm/aout.h arm/arm.h arm/netbsd-elf.h"
        tmake_file="${tmake_file} arm/t-arm arm/t-netbsd"
        ;;
arm*-*-netbsd*)
        tm_file="arm/aout.h arm/arm.h netbsd.h netbsd-aout.h arm/netbsd.h"
        tmake_file="t-netbsd arm/t-arm arm/t-netbsd"
        extra_parts=""
        use_collect2=yes
        ;;
arm*-*-linux*)                  # ARM GNU/Linux with ELF
        tm_file="dbxelf.h elfos.h linux.h arm/elf.h  arm/linux-gas.h arm/linux-elf.h arm/aout.h arm/arm.h"
        tmake_file="${tmake_file} arm/t-arm arm/t-linux"
        extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
        gnu_ld=yes
        ;;
arm*-*-uclinux*)                # ARM ucLinux
        tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h arm/linux-gas.h arm/linux-elf.h arm/uclinux-elf.h"
        tmake_file="arm/t-arm arm/t-arm-elf"
        ;;
arm*-*-ecos-elf)
        tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h arm/ecos-elf.h"
        tmake_file="arm/t-arm arm/t-arm-elf"
        ;;
arm*-*-eabi* | arm*-*-symbianelf* )
        # The BPABI long long divmod functions return a 128-bit value in 
        # registers r0-r3.  Correctly modeling that requires the use of
        # TImode.
        need_64bit_hwint=yes
        tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/bpabi.h"
        case ${target} in
        arm*-*-symbianelf*)
          tm_file="${tm_file} arm/symbian.h"
          ;;
        esac
        tm_file="${tm_file} arm/aout.h arm/arm.h"
        tmake_file="t-slibgcc-elf-ver arm/t-arm arm/t-arm-elf arm/t-bpabi"
        ;;
arm*-*-rtems*)
        tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h arm/rtems-elf.h rtems.h"
        tmake_file="arm/t-arm arm/t-arm-elf t-rtems"
        ;;
arm*-*-elf | ep9312-*-elf)
        tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h"
        tmake_file="arm/t-arm arm/t-arm-elf"
        ;;
arm*-wince-pe*)
        tm_file="arm/semi.h arm/aout.h arm/arm.h arm/coff.h dbxcoff.h arm/pe.h arm/wince-pe.h"
        tmake_file="arm/t-arm arm/t-wince-pe"
        extra_objs="pe.o"
        ;;
arm-*-pe*)
        tm_file="arm/semi.h arm/aout.h arm/arm.h arm/coff.h dbxcoff.h arm/pe.h"
        tmake_file="arm/t-arm arm/t-pe"
        extra_objs="pe.o"
        ;;
arm*-*-kaos*)
        tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h kaos.h arm/kaos-arm.h"
        tmake_file="arm/t-arm arm/t-arm-elf"
        ;;
avr-*-*)
        tm_file="avr/avr.h dbxelf.h"
        use_fixproto=yes
        ;;
c4x-*-rtems* | tic4x-*-rtems*)
        tmake_file="c4x/t-c4x t-rtems"
        tm_file="c4x/c4x.h c4x/rtems.h rtems.h"
        c_target_objs="c4x-c.o"
        cxx_target_objs="c4x-c.o"
        ;;
c4x-* | tic4x-*)
        tmake_file=c4x/t-c4x
        c_target_objs="c4x-c.o"
        cxx_target_objs="c4x-c.o"
        ;;
cris-*-aout)
        tm_file="dbxelf.h ${tm_file} cris/aout.h"
        gas=yes
        tmake_file="cris/t-cris cris/t-aout"
        ;;
cris-*-elf | cris-*-none)
        tm_file="dbxelf.h elfos.h ${tm_file}"
        tmake_file="cris/t-cris cris/t-elfmulti"
        gas=yes
        ;;
cris-*-linux*)
        tm_file="dbxelf.h elfos.h svr4.h ${tm_file} linux.h cris/linux.h"
        # We need to avoid using t-linux, so override default tmake_file
        tmake_file="cris/t-cris t-slibgcc-elf-ver cris/t-linux"
        ;;
fr30-*-elf)
        tm_file="dbxelf.h elfos.h svr4.h ${tm_file}"
        tmake_file=fr30/t-fr30
        extra_parts="crti.o crtn.o crtbegin.o crtend.o"
        use_fixproto=yes
        ;;
frv-*-elf)
        tm_file="dbxelf.h elfos.h svr4.h ${tm_file} frv/frv-abi.h"
        tmake_file=frv/t-frv
        use_fixproto=yes
        ;;
frv-*-*linux*)
        tm_file="dbxelf.h elfos.h svr4.h ${tm_file} \
                 linux.h frv/linux.h frv/frv-abi.h"
        tmake_file="${tmake_file} frv/t-frv frv/t-linux"
        ;;
h8300-*-rtems*)
        tmake_file="h8300/t-h8300 t-rtems"
        tm_file="h8300/h8300.h dbxcoff.h h8300/coff.h h8300/rtems.h rtems.h"
        ;;
h8300-*-elf*)
        tmake_file="h8300/t-h8300 h8300/t-elf"
        tm_file="h8300/h8300.h dbxelf.h elfos.h h8300/elf.h"
        use_fixproto=yes
        ;;
h8300-*-*)
        tm_file="h8300/h8300.h dbxcoff.h h8300/coff.h"
        use_fixproto=yes
        ;;
hppa*64*-*-linux* | parisc*64*-*-linux*)
        target_cpu_default="(MASK_PA_11 | MASK_PA_20 | MASK_BIG_SWITCH)"
        tm_file="pa/pa64-start.h ${tm_file} dbxelf.h elfos.h svr4.h linux.h \
                 pa/pa-linux.h pa/pa64-regs.h pa/pa-64.h pa/pa64-linux.h"
        tmake_file="${tmake_file} pa/t-linux64"
        gas=yes gnu_ld=yes
        need_64bit_hwint=yes
        ;;
hppa*-*-linux* | parisc*-*-linux*)
        target_cpu_default="(MASK_PA_11 | MASK_NO_SPACE_REGS | MASK_BIG_SWITCH)"
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h linux.h pa/pa-linux.h \
                 pa/pa32-regs.h pa/pa32-linux.h"
        tmake_file="${tmake_file} pa/t-linux"
        # if not configured with --enable-sjlj-exceptions, bump the
        # libgcc version number
        if test x$sjlj != x1; then
            tmake_file="$tmake_file pa/t-slibgcc-elf-ver"
        fi
        ;;
# port not yet contributed.
#hppa*-*-openbsd*)
#       target_cpu_default="(MASK_PA_11 | MASK_BIG_SWITCH)"
#       ;;
hppa1.1-*-pro*)
        target_cpu_default="(MASK_JUMP_IN_DELAY | MASK_PORTABLE_RUNTIME | MASK_GAS | MASK_NO_SPACE_REGS | MASK_SOFT_FLOAT | MASK_BIG_SWITCH)"
        tm_file="${tm_file} pa/pa32-regs.h dbxelf.h elfos.h pa/elf.h pa/pa-pro-end.h libgloss.h"
        tmake_file="pa/t-pro"
        ;;
hppa1.1-*-osf*)
        target_cpu_default="(MASK_PA_11 | MASK_BIG_SWITCH)"
        tm_file="${tm_file} pa/pa32-regs.h dbxelf.h pa/som.h pa/pa-osf.h"
        tmake_file="pa/t-pa"
        use_collect2=yes
        ;;
hppa1.1-*-rtems*)
        target_cpu_default="(MASK_JUMP_IN_DELAY | MASK_PORTABLE_RUNTIME | MASK_GAS | MASK_NO_SPACE_REGS | MASK_SOFT_FLOAT | MASK_BIG_SWITCH)"
        tm_file="${tm_file} pa/pa32-regs.h dbxelf.h elfos.h pa/elf.h pa/pa-pro-end.h libgloss.h pa/rtems.h rtems.h"
        tmake_file="pa/t-pro t-rtems"
        ;;
hppa1.1-*-bsd*)
        target_cpu_default="(MASK_PA_11 | MASK_BIG_SWITCH)"
        tm_file="${tm_file} pa/pa32-regs.h dbxelf.h pa/som.h"
        tmake_file="pa/t-pa"
        use_collect2=yes
        ;;
hppa1.1-*-hpux10* | hppa2*-*-hpux10*)
        target_cpu_default="(MASK_PA_11 | MASK_BIG_SWITCH)"
        tm_file="${tm_file} pa/pa32-regs.h dbxelf.h pa/som.h pa/pa-hpux.h pa/pa-hpux10.h"
        tmake_file="pa/t-pa pa/t-pa-hpux pa/t-hpux-shlib"
        case ${enable_threads} in
          "")
            if test x$have_pthread_h = xyes ; then
              tmake_file="${tmake_file} pa/t-dce-thr"
            fi
            ;;
          yes | dce)
            tmake_file="${tmake_file} pa/t-dce-thr"
            ;;
        esac
        use_collect2=yes
        use_fixproto=yes
        ;;
hppa1.0-*-hpux10*)
        tm_file="${tm_file} pa/pa32-regs.h dbxelf.h pa/som.h pa/pa-hpux.h pa/pa-hpux10.h"
        tmake_file="pa/t-pa pa/t-pa-hpux pa/t-hpux-shlib"
        case ${enable_threads} in
          "")
            if test x$have_pthread_h = xyes ; then
              tmake_file="${tmake_file} pa/t-dce-thr"
            fi
            ;;
          yes | dce)
            tmake_file="${tmake_file} pa/t-dce-thr"
            ;;
        esac
        use_collect2=yes
        use_fixproto=yes
        ;;
hppa*64*-*-hpux11*)
        if test x$gnu_ld = xyes
        then
                target_cpu_default="(MASK_PA_11 | MASK_PA_20 | MASK_GAS | MASK_GNU_LD | MASK_BIG_SWITCH)"
        else
                target_cpu_default="(MASK_PA_11 | MASK_PA_20 | MASK_GAS | MASK_BIG_SWITCH)"
        fi
        if test x$gas = xyes
        then
                tm_file="pa/pa64-start.h ${tm_file} dbxelf.h elfos.h  \
                         pa/pa64-regs.h pa/pa-hpux.h \
                         pa/pa-hpux11.h pa/pa-64.h pa/pa64-hpux.h"
        else
                tm_file="pa/pa64-start.h ${tm_file} dbxelf.h pa/elf.h \
                         pa/pa64-regs.h pa/pa-hpux.h \
                         pa/pa-hpux11.h pa/pa-64.h pa/pa64-hpux.h"
        fi
        need_64bit_hwint=yes
        tmake_file="pa/t-pa64 pa/t-pa-hpux"
        extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o"
        case x${enable_threads} in
        xyes | xposix )
                thread_file=posix 
                ;;
        esac
        ;;
hppa1.1-*-hpux11* | hppa2*-*-hpux11*)
        target_cpu_default="(MASK_PA_11 | MASK_BIG_SWITCH)"
        tm_file="${tm_file} pa/pa32-regs.h dbxelf.h pa/som.h pa/pa-hpux.h pa/pa-hpux11.h"
        tmake_file="pa/t-pa pa/t-pa-hpux pa/t-hpux-shlib"
        case x${enable_threads} in
        xyes | xposix )
                thread_file=posix 
                ;;
        esac
        use_collect2=yes
        ;;
hppa1.0-*-hpux11*)
        tm_file="${tm_file} pa/pa32-regs.h dbxelf.h pa/som.h pa/pa-hpux.h pa/pa-hpux11.h"
        tmake_file="pa/t-pa pa/t-pa-hpux pa/t-hpux-shlib"
        case x${enable_threads} in
        xyes | xposix )
                thread_file=posix 
                ;;
        esac
        use_collect2=yes
        ;;
i[34567]86-*-darwin*)
        tm_file="${tm_file} i386/darwin.h"
        ;;
i[34567]86-*-elf*)
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h i386/i386elf.h"
        tmake_file="i386/t-i386elf t-svr4"
        use_fixproto=yes
        ;;
i[34567]86-sequent-ptx4* | i[34567]86-sequent-sysv4*)
        if test x$gas = xyes
        then
                tm_file="${tm_file} usegas.h"
        fi
        xm_defines="SMALL_ARG_MAX"
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h ptx4.h i386/ptx4-i.h"
        tmake_file=t-svr4
        extra_parts="crtbegin.o crtend.o"
        use_fixproto=yes
        ;;
i[34567]86-*-aout*)
        tm_file="${tm_file} i386/unix.h i386/bsd.h i386/gas.h i386/gstabs.h i386/i386-aout.h"
        use_fixproto=yes
        ;;
i[34567]86-*-beoself* | i[34567]86-*-beos*)
        tmake_file='i386/t-beos i386/t-crtpic'
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h svr4.h i386/beos-elf.h"
        extra_parts='crtbegin.o crtend.o'
        ;;
i[34567]86-*-freebsd*)
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h ${fbsd_tm_file} i386/freebsd.h"
        ;;
x86_64-*-freebsd*)
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h ${fbsd_tm_file} i386/x86-64.h i386/freebsd.h i386/freebsd64.h"
        ;;
i[34567]86-*-netbsdelf*)
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h netbsd.h netbsd-elf.h i386/netbsd-elf.h"
        ;;
i[34567]86-*-netbsd*)
        tm_file="${tm_file} i386/unix.h i386/bsd.h i386/gas.h i386/gstabs.h netbsd.h netbsd-aout.h i386/netbsd.h"
        tmake_file=t-netbsd
        extra_parts=""
        use_collect2=yes
        ;;
x86_64-*-netbsd*)
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h netbsd.h netbsd-elf.h i386/x86-64.h i386/netbsd64.h"
        ;;
i[34567]86-*-openbsd*)
        tm_file="i386/i386.h i386/unix.h i386/bsd.h i386/gas.h i386/gstabs.h openbsd-oldgas.h openbsd.h i386/openbsd.h"
        # needed to unconfuse gdb
        tmake_file="t-libc-ok t-openbsd i386/t-openbsd"
        # we need collect2 until our bug is fixed...
        use_collect2=yes
        ;;
i[34567]86-*-coff*)
        tm_file="${tm_file} i386/unix.h i386/bsd.h i386/gas.h dbxcoff.h i386/i386-coff.h"
        use_fixproto=yes
        ;;
i[34567]86-*-linux* | i[34567]86-*-kfreebsd*-gnu | i[34567]86-*-knetbsd*-gnu)
                        # Intel 80386's running GNU/*
                        # with ELF format using glibc 2
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h svr4.h linux.h i386/linux.h"
        case ${target} in
        i[34567]86-*-knetbsd*-gnu) tm_file="${tm_file} knetbsd-gnu.h i386/knetbsd-gnu.h" ;;
        i[34567]86-*-kfreebsd*-gnu) tm_file="${tm_file} kfreebsd-gnu.h i386/kfreebsd-gnu.h" ;;
        esac
        tmake_file="${tmake_file} i386/t-crtstuff"
        ;;
x86_64-*-linux*)
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h svr4.h linux.h \
                 i386/x86-64.h i386/linux64.h"
        tmake_file="${tmake_file} i386/t-linux64"
        ;;
i[34567]86-*-gnu*)
        ;;
i[34567]86-pc-msdosdjgpp*)
        xm_file=i386/xm-djgpp.h
        tm_file="dbxcoff.h ${tm_file} i386/unix.h i386/bsd.h i386/gas.h i386/djgpp.h"
        tmake_file=i386/t-djgpp
        gnu_ld=yes
        gas=yes
        ;;
i[34567]86-*-lynxos*)
        xm_defines=POSIX
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h i386/lynx.h lynx.h"
        tmake_file="i386/t-crtstuff t-lynx"
        extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
        thread_file=lynx
        gnu_ld=yes
        gas=yes
        ;;
i[34567]86-*-nto-qnx*)
        tm_file="${tm_file} i386/att.h dbxelf.h tm-dwarf2.h elfos.h svr4.h i386/unix.h i386/nto.h"
        tmake_file=i386/t-nto
        gnu_ld=yes
        gas=yes
        ;;
i[34567]86-*-rtems*)
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h i386/i386elf.h i386/rtemself.h rtems.h"
        extra_parts="crtbegin.o crtend.o crti.o crtn.o"
        tmake_file="i386/t-rtems-i386 i386/t-crtstuff t-rtems"
        ;;
i[34567]86-*-sco3.2v5*) # 80386 running SCO Open Server 5
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h i386/sco5.h"
        if test x$gas = xyes
        then
                tm_file="usegas.h ${tm_file}"
        fi
        tmake_file=i386/t-sco5
        extra_parts="crtbegin.o crtend.o"
        use_fixproto=yes
        ;;
i[34567]86-*-solaris2*)
        xm_defines="SMALL_ARG_MAX"
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h svr4.h i386/sysv4.h sol2.h i386/sol2.h"
        tmake_file="t-sol2 i386/t-sol2 t-svr4"
        c_target_objs="sol2-c.o"
        cxx_target_objs="sol2-c.o"
        extra_objs="sol2.o"
        tm_p_file="${tm_p_file} sol2-protos.h"
        if test x$gnu_ld = xyes; then
                tmake_file="$tmake_file t-slibgcc-elf-ver"
        else
                tmake_file="$tmake_file t-slibgcc-sld"
        fi
        case ${target} in
        *-*-solaris2.[789] | *-*-solaris2.1[0-9])
                tm_file="$tm_file tm-dwarf2.h"
                ;;
        esac
        extra_parts="crt1.o crti.o crtn.o gcrt1.o gmon.o crtbegin.o crtend.o"
        case ${enable_threads}:${have_pthread_h}:${have_thread_h} in
          no:*:*) ;;
          *:yes:* ) thread_file=posix ;;
          yes:*:* | *:*:yes ) thread_file=solaris ;;
        esac
        ;;
i[34567]86-*-sysv5*)           # Intel x86 on System V Release 5
       tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h svr4.h i386/sysv4.h i386/sysv5.h"
       if test x$stabs = xyes
       then
               tm_file="${tm_file} dbx.h"
       fi
       tmake_file="i386/t-crtpic t-svr4"
       extra_parts="crtbegin.o crtend.o"
       if test x$enable_threads = xyes; then
               thread_file='posix'
       fi
        use_fixproto=yes
       ;;
i[34567]86-*-sysv4*)            # Intel 80386's running system V.4
        xm_defines="SMALL_ARG_MAX"
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h svr4.h i386/sysv4.h i386/sysv4-cpp.h"
        if test x$stabs = xyes
        then
                tm_file="${tm_file} dbx.h"
        fi
        tmake_file="i386/t-crtpic t-svr4"
        extra_parts="crtbegin.o crtend.o"
        use_fixproto=yes
        ;;
i[4567]86-wrs-vxworks)
        tm_file="${tm_file} i386/sysv4.h i386/unix.h i386/vxworks.h"
        tmake_file="${tmake_file} i386/t-vxworks"
        ;;
i[34567]86-*-pe | i[34567]86-*-cygwin*)
        tm_file="${tm_file} i386/unix.h i386/bsd.h i386/gas.h dbxcoff.h i386/cygming.h i386/cygwin.h"
        xm_file=i386/xm-cygwin.h
        tmake_file="i386/t-cygwin i386/t-cygming"
        target_gtfiles="\$(srcdir)/config/i386/winnt.c"
        extra_objs=winnt.o
        c_target_objs=cygwin2.o
        cxx_target_objs=cygwin2.o
        extra_gcc_objs=cygwin1.o
        if test x$enable_threads = xyes; then
                thread_file='posix'
        fi
        ;;
i[34567]86-*-mingw32*)
        tm_file="${tm_file} i386/unix.h i386/bsd.h i386/gas.h dbxcoff.h i386/cygming.h i386/mingw32.h"
        xm_file=i386/xm-mingw32.h
        tmake_file="i386/t-cygming i386/t-mingw32"
        target_gtfiles="\$(srcdir)/config/i386/winnt.c"
        extra_objs=winnt.o
        case ${enable_threads} in
          "" | yes | win32) thread_file='win32' ;;
        esac
        case ${target} in
                *mingw32crt*)
                        tm_file="${tm_file} i386/crtdll.h"
                        ;;
                *mingw32msv* | *mingw32*)
                        ;;
        esac
        ;;
i[34567]86-*-uwin*)
        tm_file="${tm_file} i386/unix.h i386/bsd.h i386/gas.h dbxcoff.h i386/cygwin.h i386/uwin.h"
        tmake_file="i386/t-cygwin i386/t-uwin"
        extra_objs=winnt.o
        target_gtfiles="\$(srcdir)/config/i386/winnt.c"
        if test x$enable_threads = xyes; then
                thread_file='win32'
        fi
        use_fixproto=yes
        ;;
i[34567]86-*-interix3*)
        tm_file="${tm_file} i386/unix.h i386/bsd.h i386/gas.h i386/i386-interix.h i386/i386-interix3.h interix.h interix3.h"
        tmake_file="i386/t-interix"
        extra_objs=winnt.o
        target_gtfiles="\$(srcdir)/config/i386/winnt.c"
        if test x$enable_threads = xyes ; then
                thread_file='posix'
        fi
        if test x$stabs = xyes ; then
                tm_file="${tm_file} dbxcoff.h"
        fi
        ;;
i[34567]86-*-kaos*)
        tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h i386/i386elf.h kaos.h i386/kaos-i386.h"
        tmake_file="i386/t-i386elf t-svr4"
        ;;
i860-*-sysv4*)
        tm_file="${tm_file} elfos.h svr4.h i860/sysv4.h"
        tmake_file="i860/t-i860 i860/t-svr4"
        extra_parts="crtbegin.o crtend.o"
        use_fixproto=yes
        ;;
ia64*-*-elf*)
        tm_file="${tm_file} dbxelf.h elfos.h ia64/sysv4.h ia64/elf.h"
        tmake_file="ia64/t-ia64"
        target_cpu_default="0"
        if test x$gas = xyes
        then
                target_cpu_default="${target_cpu_default}|MASK_GNU_AS"
        fi
        if test x$gnu_ld = xyes
        then
                target_cpu_default="${target_cpu_default}|MASK_GNU_LD"
        fi
        extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtfastmath.o"
        use_fixproto=yes
        ;;
ia64*-*-freebsd*)
        tm_file="${tm_file} dbxelf.h elfos.h ${fbsd_tm_file} ia64/sysv4.h ia64/freebsd.h"
        target_cpu_default="MASK_GNU_AS|MASK_GNU_LD"
        tmake_file="${tmake_file} ia64/t-ia64"
        extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtfastmath.o"
        ;;
ia64*-*-linux*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h linux.h ia64/sysv4.h ia64/linux.h"
        tmake_file="${tmake_file} ia64/t-ia64 ia64/t-glibc"
        target_cpu_default="MASK_GNU_AS|MASK_GNU_LD"
        extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtfastmath.o"
        if test x"$use_libunwind_exceptions" = xyes; then
          tmake_file="$tmake_file t-libunwind"
        fi
        ;;
ia64*-*-hpux*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h ia64/sysv4.h ia64/hpux.h"
        tmake_file="ia64/t-ia64 ia64/t-hpux"
        target_cpu_default="MASK_GNU_AS"
        case x$enable_threads in
        xyes | xposix )
                thread_file=posix
                ;;
        esac
        use_collect2=no
        c_target_objs="ia64-c.o"
        cxx_target_objs="ia64-c.o"
        # If we decide to run fixproto we should define FIXPROTO_DEFINES
        # in ia64/t-hpux, and also fix the definition of putenv in
        # sys-protos.h (const char not char).
        ;;
ip2k-*-elf)
        tm_file="elfos.h ${tm_file}"
        use_fixproto=yes
        ;;
iq2000*-*-elf*)
        tm_file="svr4.h elfos.h iq2000/iq2000.h"
        tmake_file=iq2000/t-iq2000
        out_file=iq2000/iq2000.c
        md_file=iq2000/iq2000.md
        use_fixproto=yes
        ;;
m32r-*-elf*)
        tm_file="dbxelf.h elfos.h svr4.h ${tm_file}"
        extra_parts="crtinit.o crtfini.o"
        use_fixproto=yes
        ;;
m32rle-*-elf*)
        tm_file="dbxelf.h elfos.h svr4.h m32r/little.h ${tm_file}"
        extra_parts="crtinit.o crtfini.o m32rx/crtinit.o m32rx/crtfini.o"
        use_fixproto=yes
        ;;
m32r-*-linux*)
        tm_file="dbxelf.h elfos.h svr4.h linux.h ${tm_file} m32r/linux.h"
        extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
        # We override the tmake_file for linux -- why?
        tmake_file="m32r/t-linux"
        gnu_ld=yes
        use_fixproto=yes
        if test x$enable_threads = xyes; then
                thread_file='posix'
        fi
        ;;
m32rle-*-linux*)
        tm_file="dbxelf.h elfos.h svr4.h linux.h m32r/little.h ${tm_file} m32r/linux.h"
        extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
        # We override the tmake_file for linux -- why?
        tmake_file="m32r/t-linux"
        gnu_ld=yes
        use_fixproto=yes
        if test x$enable_threads = xyes; then
                thread_file='posix'
        fi
        ;;
# m68hc11 and m68hc12 share the same machine description.
m68hc11-*-*|m6811-*-*)
        tm_file="dbxelf.h elfos.h m68hc11/m68hc11.h"
        tm_p_file="m68hc11/m68hc11-protos.h"
        md_file="m68hc11/m68hc11.md"
        out_file="m68hc11/m68hc11.c"
        tmake_file="m68hc11/t-m68hc11-gas"
        use_fixproto=yes
        ;;
m68hc12-*-*|m6812-*-*)
        tm_file="m68hc11/m68hc12.h dbxelf.h elfos.h m68hc11/m68hc11.h"
        tm_p_file="m68hc11/m68hc11-protos.h"
        md_file="m68hc11/m68hc11.md"
        out_file="m68hc11/m68hc11.c"
        tmake_file="m68hc11/t-m68hc11-gas"
        use_fixproto=yes
        ;;
m68k-*-aout*)
        tmake_file=m68k/t-m68kbare
        tm_file="m68k/m68k.h m68k/m68k-none.h m68k/m68kemb.h m68k/m68k-aout.h libgloss.h"
        ;;
m68k-*-coff*)
        tmake_file=m68k/t-m68kbare
        tm_defines="MOTOROLA USE_GAS"
        tm_file="m68k/m68k.h m68k/m68k-none.h m68k/m68kemb.h dbxcoff.h m68k/coff.h dbx.h"
        use_fixproto=yes
        ;;
m68020-*-elf* | m68k-*-elf*)
        tm_file="m68k/m68k.h m68k/m68k-none.h m68k/m68kelf.h dbxelf.h elfos.h m68k/m68kemb.h m68k/m68020-elf.h"
        tm_defines="MOTOROLA USE_GAS"
        tmake_file=m68k/t-m68kelf
        extra_parts="crtbegin.o crtend.o"
        use_fixproto=yes
        ;;
m68010-*-netbsdelf* | m68k*-*-netbsdelf*)
        tm_file="${tm_file} dbxelf.h elfos.h netbsd.h netbsd-elf.h m68k/netbsd-elf.h"
        tm_defines="MOTOROLA USE_GAS"
        case ${target} in
        m68010*)
                target_cpu_default="0"
                ;;
        *)
                target_cpu_default="MASK_68020|MASK_68881|MASK_BITFIELD"
                ;;
        esac
        ;;
m68k*-*-openbsd*)
        # needed to unconfuse gdb
        tm_defines="OBSD_OLD_GAS TARGET_DEFAULT=(MASK_68020|MASK_68881|MASK_BITFIELD)"
        tm_file="m68k/m68k.h openbsd.h m68k/openbsd.h"
        tmake_file="t-libc-ok t-openbsd m68k/t-openbsd"
        # we need collect2 until our bug is fixed...
        use_collect2=yes
        ;;
m68k-*-uclinux*)                # Motorola m68k/ColdFire running uClinux with uClibc
        tm_file="m68k/m68k.h m68k/m68k-none.h m68k/m68kelf.h dbxelf.h elfos.h m68k/uclinux.h"
        tm_defines="MOTOROLA USE_GAS"
        tmake_file=m68k/t-uclinux
        use_fixproto=no
        ;;
m68k-*-linux*)          # Motorola m68k's running GNU/Linux
                                # with ELF format using glibc 2
                                # aka the GNU/Linux C library 6.
        tm_file="m68k/m68k.h dbxelf.h elfos.h svr4.h linux.h m68k/linux.h"
        tm_defines="MOTOROLA USE_GAS"
        # if not configured with --enable-sjlj-exceptions, bump the
        # libgcc version number
        if test x$sjlj != x1; then
            tmake_file="$tmake_file m68k/t-slibgcc-elf-ver"
        fi
        ;;
m68k-*-rtems*)
        tmake_file="m68k/t-m68kbare m68k/t-crtstuff t-rtems m68k/t-rtems"
        tm_file="m68k/m68k.h m68k/m68k-none.h m68k/m68kelf.h dbxelf.h elfos.h m68k/m68kemb.h m68k/m68020-elf.h m68k/rtemself.h rtems.h"
        tm_defines="MOTOROLA USE_GAS"
        extra_parts="crtbegin.o crtend.o"
        ;;
mcore-*-elf)
        tm_file="dbxelf.h elfos.h svr4.h ${tm_file} mcore/mcore-elf.h"
        tmake_file=mcore/t-mcore
        use_fixproto=yes
        ;;
mcore-*-pe*)
        tm_file="svr3.h dbxcoff.h ${tm_file} mcore/mcore-pe.h"
        tmake_file=mcore/t-mcore-pe
        use_fixproto=yes
        ;;
mips-sgi-irix[56]*)
        tm_file="elfos.h ${tm_file} mips/iris.h"
        tmake_file="mips/t-iris mips/t-slibgcc-irix"
        target_cpu_default="MASK_GAS|MASK_ABICALLS"
        case ${target} in
        *-*-irix5*)
                tm_file="${tm_file} mips/iris5.h"
                ;;

        *-*-irix6*)
                tm_file="${tm_file} mips/iris6.h"
                tmake_file="${tmake_file} mips/t-iris6"
                tm_defines="MIPS_ISA_DEFAULT=3 MIPS_ABI_DEFAULT=ABI_N32"
                ;;
        esac
        if test "x$stabs" = xyes
        then
                tm_file="${tm_file} dbx.h mips/dbxmdebug.h"
        fi
        if test "x$gnu_ld" = xyes
        then
                tm_defines="${tm_defines} IRIX_USING_GNU_LD"
        fi
#       if test x$enable_threads = xyes; then
#               thread_file='irix'
#       fi
        use_fixproto=yes
        ;;
mips*-*-netbsd*)                        # NetBSD/mips, either endian.
        target_cpu_default="MASK_GAS|MASK_ABICALLS"
        tm_file="elfos.h ${tm_file} mips/elf.h netbsd.h netbsd-elf.h mips/netbsd.h"
        ;;
mips64*-*-linux*)
        tm_file="dbxelf.h elfos.h svr4.h linux.h ${tm_file} mips/linux.h mips/linux64.h"
        tmake_file="${tmake_file} mips/t-linux64"

        # This default ABI is a partial lie: t-linux64 overrides the
        # DRIVER_SELF_SPEC that sets the default abi, in the spec file
        # that is installed.  What GCC thinks of as the default must
        # remain as ABI_32 such that the SONAMEs of the libgcc shared
        # libraries remain compatible with those of mips-linux-gnu.
        tm_defines="MIPS_ISA_DEFAULT=1 MIPS_ABI_DEFAULT=ABI_32"
        target_cpu_default="MASK_ABICALLS|MASK_FLOAT64|MASK_64BIT"
        extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
        gnu_ld=yes
        gas=yes
        ;;
mips*-*-linux*)                         # Linux MIPS, either endian.
        tm_file="dbxelf.h elfos.h svr4.h linux.h ${tm_file} mips/linux.h"
        case ${target} in
        mipsisa32*-*)
                target_cpu_default="MASK_SOFT_FLOAT"
                tm_defines="MIPS_ISA_DEFAULT=32"
                ;;
        esac
        ;;
mips*-*-openbsd*)
        tm_defines="OBSD_HAS_DECLARE_FUNCTION_NAME OBSD_HAS_DECLARE_OBJECT OBSD_HAS_CORRECT_SPECS"
        target_cpu_default="MASK_GAS|MASK_ABICALLS"
        tm_file="mips/mips.h openbsd.h mips/openbsd.h mips/sdb.h"
        case ${target} in
        mips*el-*-openbsd*) 
            tm_defines="${tm_defines} TARGET_ENDIAN_DEFAULT=0";;
        *)  tm_defines="${tm_defines} TARGET_ENDIAN_DEFAULT=MASK_BIG_ENDIAN";;
        esac
        ;;
mipsisa32-*-elf* | mipsisa32el-*-elf*)
        tm_file="elfos.h ${tm_file} mips/elf.h"
        tmake_file=mips/t-isa3264
        tm_defines="MIPS_ISA_DEFAULT=32 MIPS_ABI_DEFAULT=ABI_EABI"
        use_fixproto=yes
        ;;
mipsisa32r2-*-elf* | mipsisa32r2el-*-elf*)
        tm_file="elfos.h ${tm_file} mips/elf.h"
        tmake_file=mips/t-isa3264
        tm_defines="MIPS_ISA_DEFAULT=33 MIPS_ABI_DEFAULT=ABI_EABI"
        use_fixproto=yes
        ;;
mipsisa64-*-elf* | mipsisa64el-*-elf*)
        tm_file="elfos.h ${tm_file} mips/elf.h"
        tmake_file=mips/t-isa3264
        target_cpu_default="MASK_64BIT|MASK_FLOAT64|MASK_GAS"
        tm_defines="MIPS_ISA_DEFAULT=64 MIPS_ABI_DEFAULT=ABI_EABI"
        use_fixproto=yes
        ;;
mipsisa64sr71k-*-elf*)
        tm_file="elfos.h ${tm_file} mips/elf.h"
        tmake_file=mips/t-sr71k
        target_cpu_default="MASK_64BIT|MASK_FLOAT64|MASK_GAS"
        tm_defines="MIPS_ISA_DEFAULT=64 MIPS_CPU_STRING_DEFAULT=\\\"sr71000\\\" MIPS_ABI_DEFAULT=ABI_EABI"
        use_fixproto=yes
        ;;
mipsisa64sb1-*-elf* | mipsisa64sb1el-*-elf*)
        tm_file="elfos.h ${tm_file} mips/elf.h"
        tmake_file=mips/t-elf
        target_cpu_default="MASK_64BIT|MASK_FLOAT64|MASK_GAS"
        tm_defines="MIPS_ISA_DEFAULT=64 MIPS_CPU_STRING_DEFAULT=\\\"sb1\\\" MIPS_ABI_DEFAULT=ABI_O64"
        use_fixproto=yes
        ;;
mips-*-elf* | mipsel-*-elf*)
        tm_file="elfos.h ${tm_file} mips/elf.h"
        tmake_file=mips/t-elf
        use_fixproto=yes
        ;;
mips64-*-elf* | mips64el-*-elf*)
        tm_file="elfos.h ${tm_file} mips/elf.h"
        tmake_file=mips/t-elf
        target_cpu_default="MASK_64BIT|MASK_FLOAT64|MASK_GAS"
        tm_defines="MIPS_ISA_DEFAULT=3 MIPS_ABI_DEFAULT=ABI_O64"
        use_fixproto=yes
        ;;
mips64vr-*-elf* | mips64vrel-*-elf*)
        tm_file="mips/vr.h elfos.h ${tm_file} mips/elf.h"
        tmake_file=mips/t-vr
        use_fixproto=yes
        ;;
mips64orion-*-elf* | mips64orionel-*-elf*)
        tm_file="elfos.h ${tm_file} mips/elforion.h mips/elf.h"
        tmake_file=mips/t-elf
        target_cpu_default="MASK_64BIT|MASK_FLOAT64|MASK_GAS"
        tm_defines="MIPS_ISA_DEFAULT=3 MIPS_ABI_DEFAULT=ABI_O64"
        use_fixproto=yes
        ;;
mips*-*-rtems*)
        tm_file="elfos.h ${tm_file} mips/elf.h mips/rtems.h rtems.h"
        tmake_file="mips/t-elf t-rtems mips/t-rtems"
        ;;
mips-wrs-vxworks)
        # We want vxworks.h after mips/elf.h, which unfortunately means we
        # have to redo the tm_file list from scratch.
        tm_file="elfos.h mips/mips.h svr4.h mips/elf.h vxworks.h mips/vxworks.h"
        tmake_file="${tmake_file} mips/t-vxworks"
        target_cpu_default="MASK_GAS"
        ;;
mips-wrs-windiss)       # Instruction-level simulator for VxWorks.
        xm_defines=POSIX
        tm_file="elfos.h mips/mips.h svr4.h mips/elf.h windiss.h mips/windiss.h"
        tmake_file="${tmake_file} mips/t-elf"
        target_cpu_default="MASK_GAS"
        thread_file=
        ;;
mipstx39-*-elf* | mipstx39el-*-elf*)
        tm_file="elfos.h ${tm_file} mips/r3900.h mips/elf.h"
        tmake_file=mips/t-r3900
        use_fixproto=yes
        ;;
mmix-knuth-mmixware)
        need_64bit_hwint=yes
        ;;
mn10300-*-*)
        tm_file="dbxelf.h elfos.h svr4.h ${tm_file}"
        if test x$stabs = xyes
        then
                tm_file="${tm_file} dbx.h"
        fi
        use_collect2=no
        use_fixproto=yes
        ;;
ns32k-*-netbsdelf*)
        echo "GCC does not yet support the ${target} target"; exit 1
        ;;
ns32k-*-netbsd*)
        tm_file="${tm_file} netbsd.h netbsd-aout.h ns32k/netbsd.h"
        # On NetBSD, the headers are already okay, except for math.h.
        tmake_file="t-netbsd ns32k/t-ns32k"
        extra_parts=""
        use_collect2=yes
        ;;
pdp11-*-bsd)
        tm_file="${tm_file} pdp11/2bsd.h"
        use_fixproto=yes
        ;;
pdp11-*-*)
        use_fixproto=yes
        ;;
avr-*-*)
        use_fixproto=yes
        ;;
# port not yet contributed
#powerpc-*-openbsd*)
#       tmake_file="${tmake_file} rs6000/t-fprules "
#       extra_headers=
#       ;;
powerpc64-*-linux*)
        tm_file="rs6000/biarch64.h ${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h"
        case x$with_cpu in
        x|xpowerpc64|xdefault64) tm_file="${tm_file} rs6000/default64.h";;
        esac
        tm_file="${tm_file} rs6000/linux64.h"
        tmake_file="rs6000/t-fprules ${tmake_file} rs6000/t-ppccomm rs6000/t-linux64"
        ;;
powerpc64-*-gnu*)
        tm_file="${cpu_type}/${cpu_type}.h elfos.h svr4.h freebsd-spec.h gnu.h rs6000/sysv4.h rs6000/linux64.h rs6000/gnu.h"
        tmake_file="rs6000/t-fprules t-slibgcc-elf-ver t-gnu rs6000/t-linux64"
        ;;
powerpc-*-beos*)
        tm_file="${tm_file} rs6000/aix.h rs6000/beos.h rs6000/xcoff.h"
        tmake_file="rs6000/t-fprules rs6000/t-beos"
        extra_headers=
        use_fixproto=yes
        ;;
powerpc-*-darwin*)
        tm_file="${tm_file} rs6000/darwin.h"
        tmake_file="${tmake_file} rs6000/t-darwin"
        extra_headers=altivec.h
        ;;
powerpc*-*-freebsd*)
        tm_file="${tm_file} dbxelf.h elfos.h ${fbsd_tm_file} rs6000/sysv4.h rs6000/freebsd.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcos ${tmake_file} rs6000/t-ppccomm"
        ;;
powerpc-*-netbsd*)
        tm_file="${tm_file} dbxelf.h elfos.h netbsd.h netbsd-elf.h freebsd-spec.h rs6000/sysv4.h rs6000/netbsd.h"
        tmake_file="${tmake_file} rs6000/t-netbsd"
        ;;
powerpc-*-chorusos*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h chorus.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcos rs6000/t-ppccomm"
        case ${enable_threads} in
          yes | posix)
            thread_file='posix'
            ;;
        esac
        use_fixproto=yes
        ;;
powerpc-*-eabispe*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/eabi.h rs6000/eabispe.h"
        tmake_file="rs6000/t-spe rs6000/t-ppccomm"
        ;;
powerpc-*-eabisimaltivec*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/eabi.h rs6000/eabisim.h rs6000/eabialtivec.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcendian rs6000/t-ppccomm"
        ;;
powerpc-*-eabisim*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/eabi.h rs6000/eabisim.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcgas rs6000/t-ppccomm"
        ;;
powerpc-*-elf*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcgas rs6000/t-ppccomm"
        use_fixproto=yes
        ;;
powerpc-*-eabialtivec*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/eabi.h rs6000/eabialtivec.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcendian rs6000/t-ppccomm"
        ;;
powerpc-*-eabi*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/eabi.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcgas rs6000/t-ppccomm"
        ;;
powerpc-*-rtems*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/eabi.h rs6000/rtems.h rtems.h"
        tmake_file="rs6000/t-fprules rs6000/t-rtems t-rtems rs6000/t-ppccomm"
        ;;
powerpc-*-linux*altivec*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/linux.h rs6000/linuxaltivec.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcos ${tmake_file} rs6000/t-ppccomm"
        ;;
powerpc-*-linux*spe*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/linux.h rs6000/linuxspe.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcos ${tmake_file} rs6000/t-ppccomm"
        ;;
powerpc-*-linux*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/linux.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcos ${tmake_file} rs6000/t-ppccomm"
        ;;
powerpc-*-gnu-gnualtivec*)
        tm_file="${cpu_type}/${cpu_type}.h elfos.h svr4.h freebsd-spec.h gnu.h rs6000/sysv4.h rs6000/linux.h rs6000/linuxaltivec.h rs6000/gnu.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcos t-slibgcc-elf-ver t-gnu rs6000/t-ppccomm"
        if test x$enable_threads = xyes; then
                thread_file='posix'
        fi
        ;;
powerpc-*-gnu*)
        tm_file="${cpu_type}/${cpu_type}.h elfos.h svr4.h freebsd-spec.h gnu.h rs6000/sysv4.h rs6000/linux.h rs6000/gnu.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcos t-slibgcc-elf-ver t-gnu rs6000/t-ppccomm"
        if test x$enable_threads = xyes; then
                thread_file='posix'
        fi
        ;;
powerpc-wrs-vxworks*)
        # We want vxworks.h after rs6000/sysv4.h, which unfortunately
        # means we have to redo the tm_file list from scratch.
        tm_file="rs6000/rs6000.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h"
        tm_file="${tm_file} vxworks.h rs6000/vxworks.h"
        tmake_file="${tmake_file} rs6000/t-fprules rs6000/t-ppccomm rs6000/t-vxworks"
        extra_headers=ppc-asm.h
        ;;
powerpc-wrs-windiss*)   # Instruction-level simulator for VxWorks.
        tm_file="${tm_file} elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/windiss.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcgas rs6000/t-ppccomm"
        thread_file=""
        use_fixproto=yes
        ;;
powerpc-*-lynxos*)
        xm_defines=POSIX
        tm_file="${tm_file} dbxelf.h elfos.h rs6000/sysv4.h rs6000/lynx.h lynx.h"
        tmake_file="t-lynx rs6000/t-lynx"
        extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
        thread_file=lynx
        gnu_ld=yes
        gas=yes
        ;;
powerpcle-*-sysv*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/sysv4le.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcos rs6000/t-ppccomm"
        use_fixproto=yes
        ;;
powerpcle-*-elf*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/sysv4le.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcgas rs6000/t-ppccomm"
        use_fixproto=yes
        ;;
powerpcle-*-eabisim*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/sysv4le.h rs6000/eabi.h rs6000/eabisim.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcgas rs6000/t-ppccomm"
        ;;
powerpcle-*-eabi*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/sysv4le.h rs6000/eabi.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcgas rs6000/t-ppccomm"
        ;;
powerpc-*-kaos*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h kaos.h rs6000/kaos-ppc.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcgas rs6000/t-ppccomm"
        ;;
powerpcle-*-kaos*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h rs6000/sysv4le.h kaos.h rs6000/kaos-ppc.h"
        tmake_file="rs6000/t-fprules rs6000/t-ppcgas rs6000/t-ppccomm"
        ;;
rs6000-ibm-aix4.[12]* | powerpc-ibm-aix4.[12]*)
        tm_file="${tm_file} rs6000/aix.h rs6000/aix41.h rs6000/xcoff.h"
        tmake_file="rs6000/t-fprules rs6000/t-newas"
        use_collect2=yes
        extra_headers=
        use_fixproto=yes
        ;;
rs6000-ibm-aix4.[3456789]* | powerpc-ibm-aix4.[3456789]*)
        tm_file="rs6000/biarch64.h ${tm_file} rs6000/aix.h rs6000/aix43.h rs6000/xcoff.h"
        tmake_file=rs6000/t-aix43
        use_collect2=yes
        thread_file='aix'
        extra_headers=
        ;;
rs6000-ibm-aix5.1.* | powerpc-ibm-aix5.1.*)
        tm_file="rs6000/biarch64.h ${tm_file} rs6000/aix.h rs6000/aix51.h rs6000/xcoff.h"
        tmake_file=rs6000/t-aix43
        use_collect2=yes
        thread_file='aix'
        extra_headers=
        ;;
rs6000-ibm-aix[56789].* | powerpc-ibm-aix[56789].*)
        tm_file="${tm_file} rs6000/aix.h rs6000/aix52.h rs6000/xcoff.h"
        tmake_file=rs6000/t-aix52
        use_collect2=yes
        thread_file='aix'
        extra_headers=
        ;;
s390-*-linux*)
        tm_file="s390/s390.h dbxelf.h elfos.h svr4.h linux.h s390/linux.h"
        tmake_file="${tmake_file} s390/t-crtstuff"
        ;;
s390x-*-linux*)
        tm_file="s390/s390x.h s390/s390.h dbxelf.h elfos.h svr4.h linux.h s390/linux.h"
        tm_p_file=s390/s390-protos.h
        md_file=s390/s390.md
        extra_modes=s390/s390-modes.def
        out_file=s390/s390.c
        tmake_file="${tmake_file} s390/t-crtstuff s390/t-linux64"
        ;;
s390x-ibm-tpf*)
        tm_file="s390/s390x.h s390/s390.h dbxelf.h elfos.h svr4.h s390/tpf.h"
        tm_p_file=s390/s390-protos.h
        md_file=s390/s390.md
        extra_modes=s390/s390-modes.def
        extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
        out_file=s390/s390.c
        tmake_file="t-slibgcc-elf-ver s390/t-crtstuff s390/t-tpf"
        ;;
sh-*-elf* | sh[12346l]*-*-elf* | sh*-*-kaos* | \
sh-*-symbianelf* | sh[12346l]*-*-symbianelf* | \
  sh-*-linux* | sh[346lbe]*-*-linux* | \
  sh-*-netbsdelf* | shl*-*-netbsdelf* | sh5-*-netbsd* | sh5l*-*-netbsd* | \
   sh64-*-netbsd* | sh64l*-*-netbsd*)
        tmake_file="${tmake_file} sh/t-sh sh/t-elf"
        if test x${with_endian} = x; then
                case ${target} in
                sh[1234]*be-*-* | sh[1234]*eb-*-*) with_endian=big ;;
                shbe-*-* | sheb-*-*)               with_endian=big,little ;;
                sh[1234]l* | sh[34]*-*-linux*)     with_endian=little ;;
                shl* | sh64l* | sh*-*-linux* | \
                  sh5l* | sh-superh-elf)           with_endian=little,big ;;
                sh[1234]*-*-*)                     with_endian=big ;;
                *)                                 with_endian=big,little ;;
                esac
        fi
        case ${with_endian} in
        big|little)     tmake_file="${tmake_file} sh/t-1e" ;;
        big,little|little,big) ;;
        *)      echo "with_endian=${with_endian} not supported."; exit 1 ;;
        esac
        case ${with_endian} in
        little*)        tm_file="sh/little.h ${tm_file}" ;;
        esac
        tm_file="${tm_file} dbxelf.h elfos.h"
        case ${target} in
        sh*-*-netbsd*)  ;;
        *)              tm_file="${tm_file} svr4.h" ;;
        esac
        tm_file="${tm_file} sh/elf.h"
        case ${target} in
        sh*-*-linux*)   tmake_file="${tmake_file} sh/t-linux"
                        tm_file="${tm_file} sh/linux.h" ;;
        sh*-*-kaos*)    tm_file="${tm_file} sh/embed-elf.h kaos.h sh/kaos-sh.h"
                        ;;
        sh*-*-netbsd*)  tm_file="${tm_file} netbsd.h netbsd-elf.h sh/netbsd-elf.h" ;;
        *)              tm_file="${tm_file} sh/embed-elf.h" ;;
        esac
        case ${target} in
        sh5*-*-netbsd*)
                # SHmedia, 32-bit ABI
                tmake_file="${tmake_file} sh/t-sh64 sh/t-netbsd"
                ;;
        sh64*-netbsd*)
                # SHmedia, 64-bit ABI
                tmake_file="${tmake_file} sh/t-sh64 sh/t-netbsd sh/t-netbsd-sh5-64"
                ;;
        *-*-netbsd)
                tmake_file="${tmake_file} sh/t-netbsd"
                ;;
        sh64*-*-linux*)
                tmake_file="${tmake_file} sh/t-sh64 sh/t-linux64"
                tm_file="${tm_file} sh/sh64.h"
                extra_headers="shmedia.h ushmedia.h sshmedia.h"
                ;;
        sh64*)
                tmake_file="${tmake_file} sh/t-sh64"
                tm_file="${tm_file} sh/sh64.h"
                extra_headers="shmedia.h ushmedia.h sshmedia.h"
                ;;
        *-*-symbianelf*)
                tmake_file="sh/t-symbian"
                tm_file="sh/symbian-pre.h sh/little.h ${tm_file} sh/symbian-post.h"
                extra_objs="symbian.o"
                extra_parts="crt1.o crti.o crtn.o crtbegin.o crtend.o crtbeginS.o crtendS.o"
                ;;      
        esac
        # sed el/eb endian suffixes away to avoid confusion with sh[23]e
        case `echo ${target} | sed 's/e[lb]-/-/'` in
        sh64*-*-netbsd*)        sh_cpu_target=sh5-64media ;;
        sh64* | sh5*-*-netbsd*) sh_cpu_target=sh5-32media ;;
        sh4a_single_only*)      sh_cpu_target=sh4a-single-only ;;
        sh4a_single*)           sh_cpu_target=sh4a-single ;;
        sh4a_nofpu*)            sh_cpu_target=sh4a-nofpu ;;
        sh4al)                  sh_cpu_target=sh4al ;;
        sh4a*)                  sh_cpu_target=sh4a ;;
        sh4_single_only*)       sh_cpu_target=sh4-single-only ;;
        sh4_single*)            sh_cpu_target=sh4-single ;;
        sh4_nofpu*)             sh_cpu_target=sh4-nofpu ;;
        sh4* | sh-superh-*)     sh_cpu_target=sh4 ;;
        sh3e*)                  sh_cpu_target=sh3e ;;
        sh*-*-netbsd* | sh3*)   sh_cpu_target=sh3 ;;
        sh2a_single_only*)      sh_cpu_target=sh2a-single-only ;;
        sh2a_single*)           sh_cpu_target=sh2a-single ;;
        sh2a_nofpu*)            sh_cpu_target=sh2a-nofpu ;;
        sh2a*)                  sh_cpu_target=sh2a ;;
        sh2e*)                  sh_cpu_target=sh2e ;;
        sh2*)                   sh_cpu_target=sh2 ;;
        *)                      sh_cpu_target=sh1 ;;
        esac
        sh_cpu_default="`echo $with_cpu|sed s/^m/sh/|tr A-Z_ a-z-`"
        case $sh_cpu_default in
        sh5-64media-nofpu | sh5-64media | \
          sh5-32media-nofpu | sh5-32media | sh5-compact-nofpu | sh5-compact | \
          sh2a-single-only | sh2a-single | sh2a-nofpu | sh2a | \
          sh4a-single-only | sh4a-single | sh4a-nofpu | sh4a | sh4al | \
          sh4-single-only | sh4-single | sh4-nofpu | sh4 | \
          sh3e | sh3 | sh2e | sh2 | sh1) ;;
        "")     sh_cpu_default=${sh_cpu_target} ;;
        *)      echo "with_cpu=$with_cpu not supported"; exit 1 ;;
        esac
        sh_multilibs=${with_multilib_list}
        if test x${sh_multilibs} = x ; then
                case ${target} in
                sh[1234]*)      sh_multilibs=${sh_cpu_target} ;;
                sh64* | sh5*)   sh_multilibs=m5-32media,m5-32media-nofpu,m5-compact,m5-compact-nofpu,m5-64media,m5-64media-nofpu ;;
                sh-superh-*)    sh_multilibs=m4,m4-single,m4-single-only,m4-nofpu ;;
                sh*-*-linux*)   sh_multilibs=m1,m3e,m4 ;;
                sh*-*-netbsd*)  sh_multilibs=m3,m3e,m4 ;;
                *) sh_multilibs=m1,m2,m2e,m4,m4-single,m4-single-only,m2a,m2a-single ;;
                esac
        fi
        target_cpu_default=SELECT_`echo ${sh_cpu_default}|tr a-z- A-Z_`
        tm_defines=${tm_defines}' SH_MULTILIB_CPU_DEFAULT=\"'`echo $sh_cpu_default|sed s/sh/m/`'\"'
        sh_multilibs=`echo $sh_multilibs,$sh_cpu_default | sed -e 's/[  ,/][    ,]*/ /g' -e 's/ $//' -e s/^m/sh/ -e 's/ m/ sh/g' | tr A-Z_ a-z-`
        for sh_multilib in ${sh_multilibs}; do
                case ${sh_multilib} in
                sh1 | sh2 | sh2e | sh3 | sh3e | \
                sh4 | sh4-single | sh4-single-only | sh4-nofpu | \
                sh4a | sh4a-single | sh4a-single-only | sh4a-nofpu | sh4al | \
                sh2a | sh2a-single | sh2a-single-only | sh2a-nofpu | \
                sh5-64media | sh5-64media-nofpu | \
                sh5-32media | sh5-32media-nofpu | \
                sh5-compact | sh5-compact-nofpu)
                        tmake_file="${tmake_file} sh/t-mlib-${sh_multilib}"
                        tm_defines="$tm_defines SUPPORT_`echo $sh_multilib|tr a-z- A-Z_`"
                        ;;
                *)
                        echo "with_multilib_list=${sh_multilib} not supported."
                        exit 1
                        ;;
                esac
        done
        if test x${enable_incomplete_targets} == xyes ; then
                tm_defines="$tm_defines SUPPORT_SH1 SUPPORT_SH2E SUPPORT_SH4 SUPPORT_SH4_SINGLE SUPPORT_SH2A SUPPORT_SH2A_SINGLE SUPPORT_SH5_32MEDIA SUPPORT_SH5_32MEDIA_NOFPU SUPPORT_SH5_64MEDIA SUPPORT_SH5_64MEDIA_NOFPU"
        fi
        use_fixproto=yes
        ;;
sh-*-rtemscoff*)
        tmake_file="sh/t-sh t-rtems"
        tm_file="${tm_file} dbxcoff.h sh/coff.h sh/rtems.h rtems.h"
        ;;
sh-*-rtems*)
        tmake_file="sh/t-sh sh/t-elf t-rtems"
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h sh/elf.h sh/embed-elf.h sh/rtemself.h rtems.h"
        ;;
sh-wrs-vxworks)
        tmake_file="$tmake_file sh/t-sh sh/t-elf sh/t-vxworks"
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h sh/embed-elf.h sh/vxworks.h"
        ;;
sh-*-*)
        tm_file="${tm_file} dbxcoff.h sh/coff.h"
        use_fixproto=yes
        ;;
sparc-*-netbsdelf*)
        tm_file="${tm_file} elfos.h svr4.h sparc/sysv4.h netbsd.h netbsd-elf.h sparc/netbsd-elf.h"
        ;;
sparc-*-openbsd*)
        tm_defines=OBSD_OLD_GAS
        tm_file="sparc/sparc.h openbsd.h sparc/openbsd.h"
        # needed to unconfuse gdb
        tmake_file="t-libc-ok t-openbsd sparc/t-openbsd"
        # we need collect2 until our bug is fixed...
        use_collect2=yes
        ;;
sparc64-*-openbsd*)
        tm_file="sparc/openbsd1-64.h sparc/sparc.h elfos.h svr4.h sparc/sysv4.h sparc/sp64-elf.h openbsd.h sparc/openbsd64.h"
        gas=yes gnu_ld=yes
        with_cpu=ultrasparc
        ;;
sparc-*-elf*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sol2.h sparc/sol2.h sparc/elf.h"
        tmake_file="sparc/t-elf sparc/t-crtfm"
        extra_parts="crti.o crtn.o crtbegin.o crtend.o"
        use_fixproto=yes
        ;;
sparc-*-linux*)         # SPARC's running GNU/Linux, libc6
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sparc/linux.h"
        tmake_file="${tmake_file} sparc/t-crtfm"
        ;;
sparc-*-rtems*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sol2.h sparc/sol2.h sparc/elf.h sparc/rtemself.h rtems.h"
        tmake_file="sparc/t-elf sparc/t-crtfm t-rtems"
        extra_parts="crti.o crtn.o crtbegin.o crtend.o"
        ;;
sparc64-*-solaris2* | sparcv9-*-solaris2*)
        tm_file="sparc/biarch64.h ${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sol2.h sparc/sol2.h sparc/sol2-64.h sparc/sol2-bi.h tm-dwarf2.h"
        if test x$gnu_ld = xyes; then
                tm_file="${tm_file} sparc/sol2-gld.h sparc/sol2-gld-bi.h"
        fi
        if test x$gas = xyes; then
                tm_file="${tm_file} sparc/sol2-gas-bi.h"
        fi
        tmake_file="t-sol2 sparc/t-sol2 sparc/t-sol2-64 sparc/t-crtfm"
        if test x$gnu_ld = xyes; then
                tmake_file="$tmake_file t-slibgcc-elf-ver"
        else
                tmake_file="$tmake_file t-slibgcc-sld"
        fi
        c_target_objs="sol2-c.o"
        cxx_target_objs="sol2-c.o"
        extra_objs="sol2.o"
        tm_p_file="${tm_p_file} sol2-protos.h"
        extra_parts="crt1.o crti.o crtn.o gcrt1.o crtbegin.o crtend.o"
        case ${enable_threads}:${have_pthread_h}:${have_thread_h} in
          no:*:*) ;;
          *:yes:* ) thread_file=posix ;;
          yes:*:* | *:*:yes ) thread_file=solaris ;;
        esac
        need_64bit_hwint=yes
        ;;
sparc-*-solaris2*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sol2.h sparc/sol2.h"
        if test x$gnu_ld = xyes; then
                tm_file="${tm_file} sparc/sol2-gld.h"
        fi
        tmake_file="t-sol2 sparc/t-sol2 sparc/t-crtfm"
        if test x$gnu_ld = xyes; then
                tmake_file="$tmake_file t-slibgcc-elf-ver"
        else
                tmake_file="$tmake_file t-slibgcc-sld"
        fi
        case ${target} in
        *-*-solaris2.[0-6] | *-*-solaris2.[0-6].*)
                if test x$gnu_ld = xno; then
                        tm_file="${tm_file} sparc/sol26-sld.h"
                fi
                ;;
        *-*-solaris2.[789] | *-*-solaris2.1[0-9])
                tm_file="sparc/biarch64.h ${tm_file} sparc/sol2-bi.h tm-dwarf2.h"
                if test x$gnu_ld = xyes; then
                        tm_file="${tm_file} sparc/sol2-gld-bi.h"
                fi
                if test x$gas = xyes; then
                        tm_file="${tm_file} sparc/sol2-gas-bi.h"
                fi
                tmake_file="$tmake_file sparc/t-sol2-64"
                need_64bit_hwint=yes
                ;;
        esac
        c_target_objs="sol2-c.o"
        cxx_target_objs="sol2-c.o"
        extra_objs="sol2.o"
        tm_p_file="${tm_p_file} sol2-protos.h"
        extra_parts="crt1.o crti.o crtn.o gcrt1.o gmon.o crtbegin.o crtend.o"
        case ${enable_threads}:${have_pthread_h}:${have_thread_h} in
          no:*:*) ;;
          *:yes:* ) thread_file=posix ;;
          yes:*:* | *:*:yes ) thread_file=solaris ;;
        esac
        ;;
sparc-*-sysv4*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sparc/sysv4-only.h"
        tmake_file=t-svr4
        extra_parts="crtbegin.o crtend.o"
        use_fixproto=yes
        ;;
sparclite-*-coff*)
        tm_file="${tm_file} sparc/lite.h svr3.h sparc/litecoff.h dbxcoff.h libgloss.h"
        tmake_file=sparc/t-sparclite
        ;;
sparclite-*-elf*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sol2.h sparc/sol2.h sparc/elf.h sparc/liteelf.h"
        tmake_file="sparc/t-sparclite sparc/t-crtfm"
        extra_parts="crtbegin.o crtend.o"
        use_fixproto=yes
        ;;
sparc86x-*-elf*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sol2.h sparc/sol2.h sparc/elf.h sparc/sp86x-elf.h"
        tmake_file="sparc/t-sp86x sparc/t-crtfm"
        extra_parts="crtbegin.o crtend.o"
        use_fixproto=yes
        ;;
sparc64-*-elf*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sol2.h sparc/sol2.h sparc/sp64-elf.h"
        tmake_file="${tmake_file} sparc/t-crtfm"
        extra_parts="crtbegin.o crtend.o"
        use_fixproto=yes
        ;;
sparc64-*-freebsd*|ultrasparc-*-freebsd*)
        tm_file="${tm_file} ${fbsd_tm_file} dbxelf.h elfos.h sparc/sysv4.h sparc/freebsd.h"
        tmake_file="${tmake_file} sparc/t-crtfm"
        case "x$with_cpu" in
                xultrasparc) ;;
                x) with_cpu=ultrasparc ;;
                *) echo "$with_cpu not supported for freebsd target"; exit 1 ;;
        esac
        need_64bit_hwint=yes
        ;;
sparc64-*-linux*)               # 64-bit SPARC's running GNU/Linux
        tmake_file="${tmake_file} sparc/t-linux64 sparc/t-crtfm"
        tm_file="sparc/biarch64.h ${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sparc/linux64.h"
        ;;
sparc64-*-netbsd*)
        tmake_file="${tmake_file} sparc/t-netbsd64"
        tm_file="sparc/biarch64.h ${tm_file}"
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h netbsd.h netbsd-elf.h sparc/netbsd-elf.h"
        ;;
strongarm-*-elf*)
        tm_file="arm/strongarm-elf.h dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h"
        tmake_file="arm/t-arm arm/t-strongarm-elf"
        out_file=arm/arm.c
        md_file=arm/arm.md
        extra_modes=arm/arm-modes.def
        use_fixproto=yes
        ;;
strongarm-*-pe)
        tm_file="arm/semi.h arm/aout.h arm/coff.h dbxcoff.h arm/strongarm-coff.h arm/arm.h arm/pe.h arm/strongarm-pe.h"
        tmake_file="arm/t-arm arm/t-strongarm-pe"
        out_file=arm/arm.c
        md_file=arm/arm.md
        extra_modes=arm/arm-modes.def
        extra_objs=pe.o
        use_fixproto=yes
        ;;
strongarm-*-kaos*)
        tm_file="arm/strongarm-elf.h dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h kaos.h arm/kaos-strongarm.h"
        tmake_file="arm/t-arm arm/t-strongarm-elf"
        out_file=arm/arm.c
        md_file=arm/arm.md
        extra_modes=arm/arm-modes.def
        ;;
v850e1-*-*)
        target_cpu_default="TARGET_CPU_v850e1"
        tm_file="dbxelf.h elfos.h svr4.h v850/v850.h"
        tm_p_file=v850/v850-protos.h
        tmake_file=v850/t-v850e
        md_file=v850/v850.md
        out_file=v850/v850.c
        if test x$stabs = xyes
        then
                tm_file="${tm_file} dbx.h"
        fi
        use_collect2=no
        c_target_objs="v850-c.o"
        cxx_target_objs="v850-c.o"
        use_fixproto=yes
        ;;
v850e-*-*)
        target_cpu_default="TARGET_CPU_v850e"
        tm_file="dbxelf.h elfos.h svr4.h v850/v850.h"
        tm_p_file=v850/v850-protos.h
        tmake_file=v850/t-v850e
        md_file=v850/v850.md
        out_file=v850/v850.c
        if test x$stabs = xyes
        then
                tm_file="${tm_file} dbx.h"
        fi
        use_collect2=no
        c_target_objs="v850-c.o"
        cxx_target_objs="v850-c.o"
        use_fixproto=yes
        ;;
v850-*-*)
        target_cpu_default="TARGET_CPU_generic"
        tm_file="dbxelf.h elfos.h svr4.h ${tm_file}"
        tmake_file=v850/t-v850
        if test x$stabs = xyes
        then
                tm_file="${tm_file} dbx.h"
        fi
        use_collect2=no
        c_target_objs="v850-c.o"
        cxx_target_objs="v850-c.o"
        use_fixproto=yes
        ;;
vax-*-bsd*)                     # VAXen running BSD
        tm_file="${tm_file} vax/bsd.h"
        tmake_file=vax/t-memfuncs
        use_collect2=yes
        use_fixproto=yes
        ;;
vax-*-sysv*)                    # VAXen running system V
        tm_file="${tm_file} vax/vaxv.h"
        tmake_file=vax/t-memfuncs
        use_fixproto=yes
        ;;
vax-*-netbsdelf*)
        tm_file="${tm_file} elfos.h netbsd.h netbsd-elf.h vax/elf.h vax/netbsd-elf.h"
        ;;
vax-*-netbsd*)
        tm_file="${tm_file} netbsd.h netbsd-aout.h vax/netbsd.h"
        tmake_file=t-netbsd
        extra_parts=""
        use_collect2=yes
        ;;
vax-*-openbsd*)
        tm_file="vax/vax.h vax/openbsd1.h openbsd.h vax/openbsd.h"
        use_collect2=yes
        ;;
vax-*-ultrix*)                  # VAXen running ultrix
        tm_file="${tm_file} vax/ultrix.h"
        tmake_file=vax/t-memfuncs
        use_fixproto=yes
        ;;
xscale-*-elf)
        tm_file="arm/xscale-elf.h dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h"
        tmake_file="arm/t-arm arm/t-xscale-elf"
        out_file=arm/arm.c
        md_file=arm/arm.md
        extra_modes=arm/arm-modes.def
        use_fixproto=yes
        ;;
xscale-*-coff)
        tm_file="arm/semi.h arm/aout.h arm/coff.h dbxcoff.h arm/xscale-coff.h arm/arm.h"
        tmake_file="arm/t-arm arm/t-xscale-coff"
        out_file=arm/arm.c
        md_file=arm/arm.md
        extra_modes=arm/arm-modes.def
        use_fixproto=yes
        ;;
xstormy16-*-elf)
        # For historical reasons, the target files omit the 'x'.
        tm_file="dbxelf.h elfos.h svr4.h stormy16/stormy16.h"
        tm_p_file=stormy16/stormy16-protos.h
        md_file=stormy16/stormy16.md
        out_file=stormy16/stormy16.c
        tmake_file="stormy16/t-stormy16"
        extra_parts="crtbegin.o crtend.o"
        use_fixproto=yes
        ;;
xtensa-*-elf*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h xtensa/elf.h"
        tmake_file="xtensa/t-xtensa xtensa/t-elf"
        ;;
xtensa-*-linux*)
        tm_file="${tm_file} dbxelf.h elfos.h svr4.h linux.h xtensa/linux.h"
        tmake_file="${tmake_file} xtensa/t-xtensa xtensa/t-linux"
        ;;
am33_2.0-*-linux*)
        tm_file="mn10300/mn10300.h dbxelf.h elfos.h linux.h mn10300/linux.h"
        tmake_file="${tmake_file} mn10300/t-linux"
        gas=yes gnu_ld=yes
        extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
        use_collect2=no
        ;;
*)
        echo "*** Configuration ${target} not supported" 1>&2
        exit 1
        ;;
esac

case ${target} in
i[34567]86-*-linux*aout* | i[34567]86-*-linux*libc1)
        tmake_file="${tmake_file} i386/t-gmm_malloc"
        ;;
i[34567]86-*-linux* | x86_64-*-linux*)
        tmake_file="${tmake_file} i386/t-pmm_malloc"
        ;;
i[34567]86-*-* | x86_64-*-*)
        tmake_file="${tmake_file} i386/t-gmm_malloc"
        ;;
esac

# Support for --with-cpu and related options (and a few unrelated options,
# too).
case ${with_cpu} in
  yes | no)
    echo "--with-cpu must be passed a value" 1>&2
    exit 1
    ;;
esac

# If there is no $with_cpu option, try to infer one from ${target}.
# This block sets nothing except for with_cpu.
if test x$with_cpu = x ; then
  case ${target} in
    ep9312-*-*)
      # A Cirrus ARM variant.
      with_cpu="ep9312"
      ;;
    i486-*-*)
      with_cpu=i486
      ;;
    i586-*-*)
      case ${target_noncanonical} in
        k6_2-*)
          with_cpu=k6-2
          ;;
        k6_3-*)
          with_cpu=k6-3
          ;;
        k6-*)
          with_cpu=k6
          ;;
        pentium_mmx-*|winchip_c6-*|winchip2-*|c3-*)
          with_cpu=pentium-mmx
          ;;
        *)
          with_cpu=pentium
          ;;
      esac
      ;;
    i686-*-* | i786-*-*)
      case ${target_noncanonical} in
        k8-*|opteron-*|athlon_64-*)
          with_cpu=k8
          ;;
        athlon_xp-*|athlon_mp-*|athlon_4-*)
          with_cpu=athlon-4
          ;;
        athlon_tbird-*|athlon-*)
          with_cpu=athlon
          ;;
        pentium2-*)
          with_cpu=pentium2
          ;;
        pentium3-*|pentium3m-*)
          with_cpu=pentium3
          ;;
        pentium4-*|pentium4m-*)
          with_cpu=pentium4
          ;;
        prescott-*)
          with_cpu=prescott
          ;;
        nocona-*)
          with_cpu=nocona
          ;;
        pentium_m-*)
          with_cpu=pentium-m
          ;;
        *)
          with_cpu=pentiumpro
          ;;
      esac
      ;;
    x86_64-*-*)
      with_cpu=k8
      ;;
    alphaev6[78]*-*-*)
      with_cpu=ev67
      ;;
    alphaev6*-*-*)
      with_cpu=ev6
      ;;
    alphapca56*-*-*)
      with_cpu=pca56
      ;;
    alphaev56*-*-*)
      with_cpu=ev56
      ;;
    alphaev5*-*-*)
      with_cpu=ev5
      ;;
    frv-*-*linux*)
      with_cpu=fr400
      ;;
    sparc*-*-*)
      with_cpu="`echo ${target} | sed 's/-.*$//'`"
      if [ x$with_cpu = xsparc64 ]; then
        with_cpu=v9
      fi
      ;;
  esac
fi

# Similarly for --with-float
if test x$with_float = x; then
        case ${target} in
        ep9312-*-*)
                with_float=hard
                ;;
        esac
fi

        # Similarly for --with-schedule.
        if test x$with_schedule = x; then
                case ${target} in
                hppa1* | parisc1*)
                        # Override default PA8000 scheduling model.
                        with_schedule=7100LC
                        ;;
                esac
        fi

        # Validate and mark as valid any --with options supported
        # by this target.  In order to use a particular --with option
        # you must list it in supported_defaults; validating the value
        # is optional.  This case statement should set nothing besides
        # supported_defaults.

        supported_defaults=
        case "${target}" in
        alpha*-*-*)
                supported_defaults="cpu tune"
                for which in cpu tune; do
                        eval "val=\$with_$which"
                        case "$val" in
                        "" \
                        | ev4 | ev45 | 21064 | ev5 | 21164 | ev56 | 21164a \
                        | pca56 | 21164PC | 21164pc | ev6 | 21264 | ev67 \
                        | 21264a)
                                ;;
                        *)
                                echo "Unknown CPU used in --with-$which=$val" 1>&2
                                exit 1
                                ;;
                        esac
                done
                ;;

        arm*-*-*)
                supported_defaults="arch cpu float tune fpu abi"
                for which in cpu tune; do
                        # See if it matches any of the entries in arm-cores.def
                        eval "val=\$with_$which"
                        if [ x"$val" = x ] \
                            || grep "^ARM_CORE($val," \
                                    ${srcdir}/config/arm/arm-cores.def \
                                    > /dev/null; then
                          # Ok
                          true
                        else
                          echo "Unknown CPU used in --with-$which=$val" 1>&2
                          exit 1
                        fi
                done

                case "$with_arch" in
                "" \
                | armv[23456] | armv2a | armv3m | armv4t | armv5t \
                | armv5te | armv6j | iwmmxt | ep9312)
                        # OK
                        ;;
                *)
                        echo "Unknown arch used in --with-arch=$with_arch" 1>&2
                        exit 1
                        ;;
                esac

                case "$with_float" in
                "" \
                | soft | hard | softfp)
                        # OK
                        ;;
                *)
                        echo "Unknown floating point type used in --with-float=$with_float" 1>&2
                        exit 1
                        ;;
                esac

                case "$with_fpu" in
                "" \
                | fpa | fpe2 | fpe3 | maverick | vfp )
                        # OK
                        ;;
                *)
                        echo "Unknown fpu used in --with-fpu=$with_fpu" 2>&1
                        exit 1
                        ;;
                esac

                case "$with_abi" in
                "" \
                | apcs-gnu | atpcs | aapcs | iwmmxt )
                        #OK
                        ;;
                *)
                        echo "Unknown ABI used in --with-abi=$with_abi"
                        exit 1
                        ;;
                esac

                if test "x$with_arch" != x && test "x$with_cpu" != x; then
                        echo "Warning: --with-arch overrides --with-cpu=$with_cpu" 1>&2
                fi
                ;;

        fr*-*-*linux*)
                supported_defaults=cpu
                case "$with_cpu" in
                fr400) ;;
                *)
                        echo "Unknown cpu used in --with-cpu=$with_cpu" 1>&2
                        exit 1
                        ;;
                esac
                ;;

        m68k*-linux*)
                supported_defaults="cpu"
                case "$with_cpu" in
                "" | "m68020" | "m68030" | "m68040" | "m68060" | "m68020-40" | "m68020-60")
                        # OK
                        ;;
                *)
                        echo "Unknown CPU used in --with-cpu=$with_cpu, known values:"  1>&2
                        echo "m68020 m68030 m68040 m68060 m68020-40 m68020-60" 1>&2
                        exit 1
                        ;;
                esac
                ;;

        hppa*-*-* | parisc*-*-*)
                supported_defaults="arch schedule"

                case "$with_arch" in
                "" | 1.0 | 1.1 | 2.0)
                        # OK
                        ;;
                *)
                        echo "Unknown architecture used in --with-arch=$with_arch" 1>&2
                        exit 1
                        ;;
                esac

                case "$with_schedule" in
                "" | 700 | 7100 | 7100LC | 7200 | 7300 | 8000)
                        # OK
                        ;;
                *)
                        echo "Unknown processor used in --with-schedule=$with_schedule." 1>&2
                        exit 1
                        ;;
                esac
                ;;

        i[34567]86-*-* | x86_64-*-*)
                supported_defaults="arch cpu tune"
                for which in arch cpu tune; do
                        eval "val=\$with_$which"
                        case ${val} in
                        "" | i386 | i486 \
                        | i586 | pentium | pentium-mmx | winchip-c6 | winchip2 \
                        | c3 | c3-2 | i686 | pentiumpro | pentium2 | pentium3 \
                        | pentium4 | k6 | k6-2 | k6-3 | athlon | athlon-tbird \
                        | athlon-4 | athlon-xp | athlon-mp | k8 | opteron \
                        | athlon64 | athlon-fx | prescott | pentium-m \
                        | pentium4m | pentium3m| nocona)
                                # OK
                                ;;
                        *)
                                echo "Unknown CPU given in --with-$which=$val." 1>&2
                                exit 1
                                ;;
                        esac
                done
                ;;

        mips*-*-*)
                supported_defaults="abi arch float tune"

                case ${with_float} in
                "" | soft | hard)
                        # OK
                        ;;
                *)
                        echo "Unknown floating point type used in --with-float=$with_float" 1>&2
                        exit 1
                        ;;
                esac

                case ${with_abi} in
                "" | 32 | o64 | n32 | 64 | eabi)
                        # OK
                        ;;
                *)
                        echo "Unknown ABI used in --with-abi=$with_abi" 1>&2
                        exit 1
                        ;;
                esac
                ;;

        powerpc*-*-* | rs6000-*-*)
                supported_defaults="cpu float tune"

                for which in cpu tune; do
                        eval "val=\$with_$which"
                        case ${val} in
                        default32 | default64)
                                with_which="with_$which"
                                eval $with_which=
                                ;;
                        "" | common \
                        | power | power2 | power3 | power4 \
                        | powerpc | powerpc64 \
                        | rios | rios1 | rios2 | rsc | rsc1 | rs64a \
                        | 401 | 403 | 405 | 405fp | 440 | 440fp | 505 \
                        | 601 | 602 | 603 | 603e | ec603e | 604 \
                        | 604e | 620 | 630 | 740 | 750 | 7400 | 7450 \
                        | 8540 | 801 | 821 | 823 | 860 | 970 | G3 | G4 | G5)
                                # OK
                                ;;
                        *)
                                echo "Unknown cpu used in --with-$which=$val." 1>&2
                                exit 1
                                ;;
                        esac
                done
                ;;

        s390*-*-*)
                supported_defaults="arch mode tune"

                for which in arch tune; do
                        eval "val=\$with_$which"
                        case ${val} in
                        "" | g5 | g6 | z900 | z990)
                                # OK
                                ;;
                        *)
                                echo "Unknown cpu used in --with-$which=$val." 1>&2
                                exit 1
                                ;;
                        esac
                done

                case ${with_mode} in
                "" | esa | zarch)
                        # OK
                        ;;
                *)
                        echo "Unknown architecture mode used in --with-mode=$with_mode." 1>&2
                        exit 1
                        ;;
                esac
                ;;

        sh[123456ble]-*-* | sh-*-*)
                supported_defaults="cpu"
                case "`echo $with_cpu | tr A-Z_ a-z- | sed s/sh/m/`" in
                "" | m1 | m2 | m2e | m3 | m3e | m4 | m4-single | m4-single-only | m4-nofpu )
                        # OK
                        ;;
                m2a | m2a-single | m2a-single-only | m2a-nofpu)
                        ;;
                m4a | m4a-single | m4a-single-only | m4a-nofpu | m4al)
                        ;;
                *)
                        echo "Unknown CPU used in --with-cpu=$with_cpu, known values:"  1>&2
                        echo "m1 m2 m2e m3 m3e m4 m4-single m4-single-only m4-nofpu" 1>&2
                        echo "m4a m4a-single m4a-single-only m4a-nofpu m4al" 1>&2
                        echo "m2a m2a-single m2a-single-only m2a-nofpu" 1>&2
                        exit 1
                        ;;
                esac
                ;;
        sparc*-*-*)
                supported_defaults="cpu float tune"

                for which in cpu tune; do
                        eval "val=\$with_$which"
                        case ${val} in
                        "" | sparc | sparcv9 | sparc64 | sparc86x \
                        | v7 | cypress | v8 | supersparc | sparclite | f930 \
                        | f934 | hypersparc | sparclite86x | sparclet | tsc701 \
                        | v9 | ultrasparc | ultrasparc3)
                                # OK
                                ;;
                        *)
                                echo "Unknown cpu used in --with-$which=$val" 1>&2
                                exit 1
                                ;;
                        esac
                done

                case ${with_float} in
                "" | soft | hard)
                        # OK
                        ;;
                *)
                        echo "Unknown floating point type used in --with-float=$with_float" 1>&2
                        exit 1
                        ;;
                esac
                ;;

        v850*-*-*)
                supported_defaults=cpu
                case ${with_cpu} in
                "" | v850e | v850e1)
                        # OK
                        ;;
                *)
                        echo "Unknown cpu used in --with-cpu=$with_cpu" 1>&2
                        exit 1
                        ;;
                esac
                ;;
        esac

        # Set some miscellaneous flags for particular targets.
        target_cpu_default2=
        case ${target} in
        alpha*-*-*)
                if test x$gas = xyes
                then
                        target_cpu_default2="MASK_GAS"
                fi
                ;;

        arm*-*-*)
                case "x$with_cpu" in
                x)
                        # The most generic
                        target_cpu_default2="TARGET_CPU_generic"
                        ;;

                *)
                        target_cpu_default2="TARGET_CPU_$with_cpu"
                        ;;
                esac
                ;;

        m68k*-linux*)
                case "x$with_cpu" in
                x)
                        # The most generic
                        target_cpu_default2="(MASK_68020|MASK_68881|MASK_BITFIELD)"
                        ;;
                xm68020)
                        target_cpu_default2="(MASK_68020|MASK_68881|MASK_BITFIELD)"
                        ;;
                xm68030)
                        target_cpu_default2="(MASK_68030|MASK_68020|MASK_68881|MASK_BITFIELD)"
                        ;;
                xm68040)
                        target_cpu_default2="(MASK_68040|MASK_68040_ONLY|MASK_68020|MASK_68881|MASK_BITFIELD)"
                        ;;
                xm68060)
                        target_cpu_default2="(MASK_68060|MASK_68040_ONLY|MASK_68020|MASK_68881|MASK_BITFIELD)"
                        ;;
                xm68020-40)
                        target_cpu_default2="(MASK_BITFIELD|MASK_68881|MASK_68020|MASK_68040)"
                        ;;
                xm68020-60)
                        target_cpu_default2="(MASK_BITFIELD|MASK_68881|MASK_68020|MASK_68040|MASK_68060)"
                        ;;
                *)
                        echo "Unknown CPU used in --with-cpu=$with_cpu"  1>&2
                        exit 1
                        ;;
                esac
                ;;

        hppa*-*-* | parisc*-*-*)
                if test x$gas = xyes
                then
                        target_cpu_default2="MASK_GAS|MASK_JUMP_IN_DELAY"
                fi
                ;;

        mips*-*-*)
                case ${target} in
                mips*-*-ecoff* | mips*-*-elf*)
                        if test x$gas = xyes
                        then
                                if test x$gnu_ld = xyes
                                then
                                        target_cpu_default2="MASK_GAS|MASK_SPLIT_ADDR"
                                else
                                        target_cpu_default2="MASK_GAS"
                                fi
                        fi
                        ;;
                mips*-*-*)
                        if test x$gas = xyes
                        then
                                target_cpu_default2="MASK_GAS"
                        fi
                        ;;
                esac
                case ${target} in
                        mips*el-*-*)
                                tm_defines="TARGET_ENDIAN_DEFAULT=0 $tm_defines"
                                ;;
                esac
                case $tm_file in
                        *mips/elf.h*)
                                tm_defines="OBJECT_FORMAT_ELF $tm_defines"
                                ;;
                esac
                if test "x$enable_gofast" = xyes
                then
                        tm_defines="US_SOFTWARE_GOFAST $tm_defines"
                        tmake_file="mips/t-gofast $tmake_file"
                else
                        tmake_file="mips/t-mips $tmake_file"
                fi
                ;;

        powerpc*-*-* | rs6000-*-*)
                # FIXME: The PowerPC port uses the value set at compile time,
                # although it's only cosmetic.
                if test "x$with_cpu" != x
                then
                        target_cpu_default2="\\\"$with_cpu\\\""
                fi
                out_file=rs6000/rs6000.c
                c_target_objs="${c_target_objs} rs6000-c.o"
                cxx_target_objs="${cxx_target_objs} rs6000-c.o"
                tmake_file="rs6000/t-rs6000 ${tmake_file}"
                ;;

        sparc*-*-*)
                # Some standard aliases.
                case x$with_cpu in
                xsparc)
                        with_cpu=v7
                        ;;
                xsparc86x)
                        with_cpu=sparclite86x
                        ;;
                xsparcv9 | xsparc64)
                        with_cpu=v9
                        ;;
                esac

                # The Sparc port checks this value at compile-time.
                target_cpu_default2="TARGET_CPU_$with_cpu"
                ;;
        v850*-*-*)
                # FIXME: The v850 is "special" in that it does not support
                # runtime CPU selection, only --with-cpu.
                case "x$with_cpu" in
                x)
                        ;;
                xv850e)
                        target_cpu_default2="TARGET_CPU_$with_cpu"
                        ;;
                esac
                ;;
        esac

        t=
        all_defaults="abi cpu arch tune schedule float mode fpu"
        for option in $all_defaults
        do
                eval "val=\$with_$option"
                if test -n "$val"; then
                        case " $supported_defaults " in
                        *" $option "*)
                                ;;
                        *)
                                echo "This target does not support --with-$option." 2>&1
                                exit 1
                                ;;
                        esac

                        if test "x$t" = x
                        then
                                t="{ \"$option\", \"$val\" }"
                        else
                                t="${t}, { \"$option\", \"$val\" }"
                        fi
                fi
        done
        if test "x$t" = x
        then
                configure_default_options="{ { NULL, NULL} }"
        else
                configure_default_options="{ ${t} }"
        fi

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