* config/tc-sh.h (struct sh_segment_info_type): Define.
[deliverable/binutils-gdb.git] / gas / configure.in
index dcb2e72db7c0442778f63d24b5bd753cf2261c87..17893fe3c9b8919b19424ed9a547cc188ebe6e2e 100644 (file)
-# This file is configure.in
-#
-#   Copyright (C) 1987-1992 Free Software Foundation, Inc.
-#
-#  This file is part of GAS, the GNU Assembler.
-#
-#   GAS 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.
-#
-#   GAS 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 GAS; see the file COPYING.  If not, write to
-#   the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
-#
-
-# This file was written, and is maintained by K. Richard Pixley
-# <rich@cygnus.com>.
-
-# This file is a shell script that supplies the information necessary
-# to tailor a template configure script into the configure script
-# appropriate for this directory.  For more information, check any
-# existing configure script.
-
-srctrigger=as.c
-srcname="gas"
-need_bfd=no
-bfd_gas=no
-configdirs="doc testsuite"
-
-# per-host:
-
-gas_host=generic
-
-case "${host}" in
-  a29k-*-*)                    gas_host=a29k           ;;
-
-  alpha-*-osf*)                        gas_host=ansi           ;;
-
-  hppa*-hp-hpux*)              gas_host=hpux           ;;
-  hppa*-hp-bsd*)               gas_host=hppabsd        ;;
-  hppa*-hp-osf*)               gas_host=hppaosf        ;;
-
-  i[34]86-ibm-aix*)            gas_host=i386aix        ;;
-  i[34]86-*-isc*)              gas_host=sysv           ;;
-  i386-sun-sunos*)             gas_host=sun386         ;;
-
-  m68k-sun-sunos*)             gas_host=sun3           ;;
-  m68*-*-hpux)                 gas_host=hpux           ;;
-
-  mips*-dec-ultrix*)           gas_host=decstatn       ;;
-  mips*-*-bsd*)                        gas_host=mipsbsd        ;;
-  mips*-sgi-irix*)             gas_host=irix           ;;
-
-  rs6000-*-*)                  gas_host=rs6000         ;;
-
-  sparc-sun-sunos*)            gas_host=sun4           ;;
-  sparc-sun-solaris2*)         gas_host=sysv           ;;
-
-  vax-*-vms*)                  gas_host=vms            ;;
-  vax-*-bsd*)                  gas_host=vax            ;;
-
-  *-*-sysv4* | *-*-unixware)   gas_host=sysv           ;;
-
-  *-*-ansi | *-*-ultrix | *-*-hpux | *-*-sysv*)
-                               gas_host=${host_os}     ;;
-
-esac
-
-if [ ! -r ${srcdir}/config/ho-${gas_host}.h ]; then
-  echo '*** GAS does not support host' ${host} 1>&2
-  exit 1
+dnl Process this file with autoconf to produce a configure script.
+dnl
+dnl And be careful when changing it!  If you must add tests with square
+dnl brackets, be sure changequote invocations surround it.
+dnl
+dnl
+AC_PREREQ(2.3)dnl We only need 2.0, but pre-2.3 loses on some AIX version.
+AC_INIT(as.h)dnl
+dnl
+user_bfd_gas=
+AC_ARG_ENABLE(bfd-assembler,
+[  --enable-bfd-assembler  use BFD back end for writing object files],
+[case "${enableval}" in
+  yes) need_bfd=yes user_bfd_gas=yes ;;
+  no)  user_bfd_gas=no ;;
+  *)   AC_MSG_ERROR(bad value ${enableval} given for bfd-assembler option) ;;
+esac])dnl
+AC_ARG_ENABLE(targets,
+[    targets            alternative target configurations besides the primary],
+[case "${enableval}" in
+  yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
+           ;;
+  no)      enable_targets= ;;
+  *)       enable_targets=$enableval ;;
+esac])dnl
+AC_ARG_ENABLE(shared,
+[  --enable-shared         build shared BFD library],
+[case "${enableval}" in
+  yes) shared=true shared_bfd=true shared_opcodes=true ;;
+  no)  shared=false ;;
+  *bfd*opcodes*) shared=true shared_bfd=true shared_opcodes=true ;;
+  *opcodes*bfd*) shared=true shared_bfd=true shared_opcodes=true ;;
+  *bfd*) shared=true shared_bfd=true ;;
+  *opcodes*) shared=true shared_opcodes=true ;;
+  *) shared=false ;;
+esac])dnl
+
+# Generate a header file -- gets more post-processing by Makefile later.
+AC_CONFIG_HEADER(conf)
+
+dnl For recursion to work right, this must be an absolute pathname.
+AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
+AC_CANONICAL_SYSTEM
+AC_ARG_PROGRAM
+
+te_file=generic
+
+canon_targets=""
+if test -n "$enable_targets" ; then
+  for t in `echo $enable_targets | sed 's/,/ /g'`; do
+    result=`$ac_config_sub $t 2>/dev/null`
+    if test -n "$result" ; then
+      canon_targets="$canon_targets $result"
+#    else
+#      # Permit "all", etc.  We don't support it yet though.
+#      canon_targets="$canon_targets $t"
+    fi
+  done
+  GAS_UNIQ(canon_targets)
 fi
 
-# per-target:
-
-case ${with_bfd_assembler} in
-  yes)
-    echo "*** Warning:  GAS BFD configuration option not yet fully supported" 1>&2
-    need_bfd=yes
-    bfd_gas=yes
-    ;;
-  no | "")
-    ;;
-  *)
-    echo "*** Bad value \"${with_bfd_assembler}\" for --with-bfd-assembler option" 1>&2
-    exit 1
-    ;;
-esac
-
-# assign cpu type
-emulation=generic
-
-# default is big
-endian=big
-
-# check for architecture variants
-case ${target_cpu} in
-  # Actually we've only got support for the 1.1, so we shouldn't generalize,
-  # but this is what the support files are named...
-  hppa*)       cpu_type=hppa ;;
-  i486)                cpu_type=i386 ;;
-  m680[01234]0) cpu_type=m68k ;;
-  m68008)      cpu_type=m68k ;;
-  m683??)       cpu_type=m68k ;;
-  m8*)         cpu_type=m88k ;;
-  mips*el)     cpu_type=mips endian=little;;
-  mips*)       cpu_type=mips ;;
-  sparc64)     cpu_type=sparc64 obj_format=elf ;; # v9
-  sparclite*)   cpu_type=sparc ;;
-  *)           cpu_type=${target_cpu} ;;
-esac
-
-gas_target=${cpu_type}
-generic_target=${cpu_type}-${target_vendor}-${target_os}
-dev=no
-
-# assign object format
-case ${generic_target} in
-  a29k-amd-udi)                obj_format=coffbfd gas_target=ebmon29k ;;
-  a29k-amd-ebmon)      obj_format=coffbfd gas_target=ebmon29k ;;
-  a29k-amd-ebmonold)   obj_format=coff gas_target=ebmon29k ;;
-
-  alpha-*-osf*)                obj_format=ecoff dev=yes ;;
-
-  hppa-*-osf)          obj_format=elf emulation=hppa ;;
-  hppa-*-hpux*)                obj_format=som emulation=hppa ;;
-  hppa-*-bsd*)         obj_format=som emulation=hppa ;;
-
-  h8300-*-coff)                obj_format=coffbfd ;;
-
-  i386-ibm-aix*)       obj_format=coffbfd gas_target=i386coff
-                        emulation=i386aix ;;
-  i386-*-bsd*)         obj_format=aout emulation=386bsd ;;
-  i386-*-netbsd0.8)    obj_format=aout emulation=netbsd ;;
-  i386-*-netbsd*)      obj_format=aout emulation=netbsd ;;
-  i386-*-linux*elf*)   obj_format=elf  emulation=linux ;;
-  i386-*-linux*coff*)  obj_format=coffbfd emulation=linux
-                        gas_target=i386coff ;;
-  i386-*-linux*)       obj_format=aout emulation=linux ;;
-  i386-*-lynxos*)      obj_format=coffbfd gas_target=i386coff
-                        emulation=lynx ;;
-  i386-*-sysv4* | i386-*-solaris* | i386-*-elf)
-                       obj_format=elf ;;
-  i386-*-coff | i386-*-sysv* | i386-*-sco* | i386-*-isc*)
-                       obj_format=coffbfd gas_target=i386coff ;;
-  i386-*-vsta)         obj_format=aout ;;
-  i386-*-go32)         obj_format=aout ;;
-
-  i960-wrs-vxworks | i960-*-nindy*)
-                       obj_format=bout ;;
-  i960-*-coff)         obj_format=coff emulation=ic960 ;;
-
-  m68k-wrs-vxworks | m68k-ericsson-ose | m68k-*-sunos*)
-                       obj_format=aout emulation=sun3 ;;
-  m68k-*-coff | m68k-*-sysv*)
-                       obj_format=coffbfd gas_target=m68kcoff ;;
-  m68k-*-hpux)         obj_format=hp300 emulation=hp300 ;;
-  m68k-*-lynxos*)      obj_format=coffbfd gas_target=m68kcoff
-                        emulation=lynx ;;
-
-  m88k-*-coff*)                obj_format=coffbfd gas_target=m88kcoff ;;
-
-  # don't change emulation like *-*-bsd does
-  mips-*-bsd*)         bfd_gas=yes obj_format=aout gas_target=mips-lit ;;
-  mips-*-ultrix*)      obj_format=ecoff gas_target=mips-lit ;;
-  mips-*-ecoff*)       obj_format=ecoff 
-                       if [ $endian = big ] ; then
-                         gas_target=mips-big
-                       else
-                         gas_target=mips-lit
-                       fi 
-                       ;;
-  mips-*-ecoff*)       obj_format=ecoff gas_target=mips-big ;;
-  mips-*-irix5*)       obj_format=elf gas_target=mips-big ;;
-  mips-*-irix*)                obj_format=ecoff gas_target=mips-big emulation=irix ;;
-  mips-*-riscos*)      obj_format=ecoff gas_target=mips-big ;;
-  mips-*-sysv*)                obj_format=ecoff gas_target=mips-big ;;
-  mips-*-elf*)         obj_format=elf 
-                       if [ $endian = big ] ; then
-                         gas_target=mips-big
-                       else
-                         gas_target=mips-lit
-                       fi
-                       ;;
-
-  sh-*-coff)           obj_format=coffbfd ;;
-
-  sparc*-*-sunos4*)    obj_format=aout emulation=sun3 bfd_gas=yes ;;
-  sparc*-*-aout | sparc*-*-vxworks)
-                       obj_format=aout bfd_gas=yes ;;
-  sparc*-*-coff)       obj_format=coff bfd_gas=yes ;;
-  sparc*-*-lynxos)     obj_format=coff bfd_gas=yes ;;
-  sparc*-fujitsu-none) obj_format=aout bfd_gas=yes ;;
-  sparc*-*-elf | sparc*-*-solaris*)
-                       obj_format=elf ;;
-  sparc64-*-aout*)     obj_format=aout bfd_gas=yes ;; # v9
-
-  vax-*-vms)           obj_format=vms ;;
-
-  z8k-*-coff | z8k-*-sim)
-                       obj_format=coffbfd ;;
-
-  *-*-aout | *-*-scout)
-                       obj_format=aout ;;
-  *-*-nindy*)
-                       obj_format=bout ;;
-  *-*-bsd*)
-                       obj_format=aout emulation=sun3 ;;
-  *-*-generic)         obj_format=generic ;;
-  *-*-xray | *-*-hms)  obj_format=coffbfd ;;
-  *-*-sysv32)          obj_format=coff emulation=sysv32 ;;
-  *-*-sim)             obj_format=coffbfd ;;
-  *-*-elf | *-*-sysv4* | *-*-solaris*)
-       echo '*** Warning: GAS support for ELF format is incomplete' 1>&2
-                       obj_format=elf dev=yes ;;
-  *-*-coff* | *-sysv* | *-*-sco*)
-                       obj_format=coff
-                       case ${target_vendor} in
-                         bull)  emulation=dpx2 ;;
-                         sun)   emulation=sun3 ;;
-                       esac
-                       ;;
-  *-*-vxworks)         obj_format=aout ;;
-  *-*-netware)         obj_format=elf ;;
-esac
+emulations=""
+
+for this_target in $target $canon_targets ; do
+
+    eval `echo $this_target | sed 's/^\(.*\)-\(.*\)-\(.*\)$/cpu=\1 vendor=\2 os=\3/'`
+
+    # check for architecture variants
+    case ${cpu} in
+      armeb)           cpu_type=arm endian=big ;;
+      arm*)            cpu_type=arm endian=little ;;
+      hppa*)           cpu_type=hppa ;;
+changequote(,)dnl
+      i[456]86)                cpu_type=i386 ;;
+      m680[012346]0)   cpu_type=m68k ;;
+      m68008)          cpu_type=m68k ;;
+      m683??)          cpu_type=m68k ;;
+changequote([,])dnl
+      m8*)             cpu_type=m88k ;;
+      mips*el)         cpu_type=mips endian=little;;
+      mips*)           cpu_type=mips endian=big ;;
+      powerpcle*)      cpu_type=ppc endian=little ;;
+      powerpc*)                cpu_type=ppc endian=big ;;
+      rs6000*)         cpu_type=ppc ;;
+      sparc64)         cpu_type=sparc want_sparc_v9=true ;;
+      sparc*)          cpu_type=sparc ;;
+      *)               cpu_type=${cpu} ;;
+    esac
+
+    if test ${this_target} = $target ; then
+      target_cpu_type=${cpu_type}
+    elif test ${target_cpu_type} != ${cpu_type} ; then
+      continue
+    fi
+
+    targ=${cpu_type}
+    generic_target=${cpu_type}-$vendor-$os
+    dev=no
+    bfd_gas=no
+    em=generic
+
+    # assign object format
+    case ${generic_target} in
+      a29k-*-coff)          fmt=coff targ=ebmon29k ;;
+      a29k-amd-udi)         fmt=coff targ=ebmon29k ;;
+      a29k-amd-ebmon)       fmt=coff targ=ebmon29k ;;
+      a29k-nyu-sym1)        fmt=coff targ=ebmon29k ;;
+      a29k-*-vxworks*)      fmt=coff ;;
+
+      alpha-*-netware*)     fmt=ecoff ;;
+      alpha-*-osf*)         fmt=ecoff ;;
+      alpha-*-linux*)       fmt=ecoff ;;
+
+# start-sanitize-arc
+      arc-*-elf*)           fmt=elf bfd_gas=yes ;;
+# end-sanitize-arc
+
+      arm-*-riscix*)       fmt=aout targ=arm-lit ;;
+      arm-*-aout)          fmt=aout
+                           case "$endian" in
+                             big)      targ=arm-big ;;
+                             *)        targ=arm-lit ;;
+                           esac
+                           ;;
+      arm-*-coff)           fmt=coff ;;
+      arm-*-riscix*)        fmt=aout ;;
+      arm-*-pe)             fmt=coff targ=armcoff em=pe ;;
+
+      hppa-*-*elf*)         fmt=elf em=hppa ;;
+      hppa-*-lites*)        fmt=elf em=hppa ;;
+      hppa-*-osf*)          fmt=som em=hppa ;;
+      hppa-*-hpux*)         fmt=som em=hppa ;;
+      hppa-*-bsd*)          fmt=som em=hppa ;;
+      hppa-*-hiux*)         fmt=som em=hppa ;;
+
+      h8300-*-coff)         fmt=coff ;;
+
+      i386-ibm-aix*)        fmt=coff targ=i386coff
+                            em=i386aix ;;
+      i386-*-bsd*)          fmt=aout em=386bsd ;;
+      i386-*-netbsd0.8)     fmt=aout em=386bsd ;;
+      i386-*-netbsd*)       fmt=aout em=nbsd bfd_gas=yes;;
+      i386-*-linux*aout* | i386-*-linuxoldld)   fmt=aout em=linux ;;
+      i386-*-linux*coff*)   fmt=coff em=linux
+                            targ=i386coff ;;
+      i386-*-linux*)        fmt=elf em=linux ;;
+      i386-*-lynxos*)       fmt=coff targ=i386coff
+                            em=lynx ;;
+      i386-*-sysv4* | i386-*-solaris* | i386-*-elf | i386-*-freebsdelf*)
+                           fmt=elf ;;
+      i386-*-sco*elf*)      fmt=elf targ=sco5 ;;
+      i386-*-coff | i386-*-sysv* | i386-*-sco* | i386-*-isc*)
+                           fmt=coff targ=i386coff ;;
+      i386-*-vsta)          fmt=aout ;;
+      i386-*-go32)          fmt=coff targ=i386coff ;;
+      i386-*-gnu*)          fmt=elf ;;
+      i386-*-mach*)
+                           fmt=aout em=mach bfd_gas=yes ;;
+      i386-*-msdos*)        fmt=aout ;;
+      i386-*-moss*)        fmt=elf ;;
+      i386-*-pe)            fmt=coff targ=i386coff em=pe ;;
+      i386-*-cygwin32)      fmt=coff targ=i386coff em=pe ;;
+      i386-*-*nt)           fmt=coff targ=i386coff em=pe ;;
+      i960-*-bout)          fmt=bout ;;
+      i960-*-coff)          fmt=coff em=ic960 targ=ic960coff ;;
+      i960-*-nindy*)        fmt=bout ;;
+      i960-*-vxworks4*)     fmt=bout ;;
+      i960-*-vxworks5.0)    fmt=bout ;;
+      i960-*-vxworks5.*)    fmt=coff em=ic960 targ=ic960coff ;;
+      i960-*-vxworks*)      fmt=bout ;;
+
+      m68k-*-vxworks* | m68k-ericsson-ose | m68k-*-sunos*)
+                           fmt=aout em=sun3 ;;
+      m68k-motorola-sysv*)  fmt=coff targ=m68kcoff em=delta ;;
+      m68k-bull-sysv3*)     fmt=coff targ=m68kcoff em=dpx2 ;;
+      m68k-apollo-*)        fmt=coff targ=apollo em=apollo ;;
+      m68k-*-sysv4 | m68k-*-elf) # must be before -sysv*
+                           fmt=elf ;;
+      m68k-*-coff | m68k-*-sysv*)
+                           fmt=coff targ=m68kcoff ;;
+      m68k-*-hpux*)         fmt=hp300 em=hp300 ;;
+      m68k-*-linux*aout*)   fmt=aout em=linux ;;
+      m68k-*-linux*)       fmt=elf em=linux ;;
+      m68k-*-lynxos*)       fmt=coff targ=m68kcoff
+                            em=lynx ;;
+      m68k-*-netbsd*)       fmt=aout em=nbsd bfd_gas=yes ;;
+      m68k-apple-aux*)      fmt=coff targ=m68kcoff em=aux ;;
+      m68k-*-psos*)         fmt=elf em=psos;;
+
+      m88k-motorola-sysv3*) fmt=coff targ=m88kcoff em=delt88 ;;
+      m88k-*-coff*)         fmt=coff targ=m88kcoff ;;
+
+      # don't change em like *-*-bsd does
+      mips-dec-netbsd*)            fmt=elf targ=mips-lit endian=little ;;
+      mips-dec-bsd*)        fmt=aout targ=mips-lit ;;
+      mips-sony-bsd*)       fmt=ecoff targ=mips-big ;;
+      mips-*-bsd*)          AC_MSG_ERROR(Unknown vendor for mips-bsd configuration.) ;;
+      mips-*-ultrix*)       fmt=ecoff targ=mips-lit endian=little ;;
+      mips-*-ecoff*)        fmt=ecoff 
+                           case "$endian" in
+                           big) targ=mips-big ;;
+                           *)   targ=mips-lit ;;
+                           esac
+                           ;;
+      mips-*-ecoff*)        fmt=ecoff targ=mips-big ;;
+      mips-*-gnu*)          fmt=aout
+                           case "$endian" in
+                           big) targ=mips-big ;;
+                           *)   targ=mips-lit ;;
+                           esac
+                           ;;
+      mips-*-irix5*)        fmt=elf targ=mips-big ;;
+      mips-*-irix*)         fmt=ecoff targ=mips-big ;;
+      mips-*-riscos*)       fmt=ecoff targ=mips-big ;;
+      mips-*-sysv*)         fmt=ecoff targ=mips-big ;;
+      mips-*-elf*)          fmt=elf 
+                           case "$endian" in
+                           big) targ=mips-big ;;
+                           *)   targ=mips-lit ;;
+                           esac
+                           ;;
+      ppc-*-pe | ppc-*-cygwin32 | ppc-*-winnt*)
+                           fmt=coff em=pe 
+                           case "$endian" in
+                           big) targ=ppc-big ;;
+                           *)   targ=ppc-lit ;;
+                           esac
+                            ;;
+      ppc-*-aix*)           fmt=coff ;;
+      ppc-*-elf* | ppc-*-eabi* | ppc-*-sysv4*)
+                           fmt=elf
+                           case "$endian" in
+                           big)  targ=ppc-big ;;
+                           *)    targ=ppc-lit ;;
+                           esac
+                           ;;
+      ppc-*-linux*)        fmt=elf
+                           case "$endian" in
+                           big)  targ=ppc-big ;;
+                           *)    AC_MSG_ERROR(Linux must be configured big endian) ;;
+                           esac
+                           ;;
+      ppc-*-solaris*)      fmt=elf
+                           case "$endian" in
+                           big)  AC_MSG_ERROR(Solaris must be configured little endian) ;;
+                           *)    targ=ppc-sol ;;
+                           esac
+                           ;;
+      ppc-*-macos* | ppc-*-mpw*)
+                           fmt=coff em=macos ;;
+      ppc-*-netware*)       fmt=elf em=ppcnw ;;
+
+      sh-*-coff)            fmt=coff ;;
+
+# start-sanitize-rce
+      rce-*-aout)           fmt=aout ;;
+# end-sanitize-rce
+
+      ns32k-pc532-mach* | ns32k-pc532-ux*)    fmt=aout em=pc532mach ;;
+      ns32k-pc532-netbsd* | ns32k-pc532-lites*)  fmt=aout em=nbsd532 ;;
+
+      sparc-*-sunos4*)      fmt=aout em=sun3 ;;
+      sparc-*-aout | sparc*-*-vxworks)
+                           fmt=aout ;;
+      sparc-*-coff)         fmt=coff ;;
+      sparc-*-lynxos*)      fmt=coff em=lynx ;;
+      sparc-fujitsu-none)   fmt=aout ;;
+      sparc-*-elf | sparc-*-solaris*)
+                           fmt=elf ;;
+      sparc-*-netbsd*)      fmt=aout em=nbsd bfd_gas=yes ;;
+
+      vax-*-bsd* | vax-*-ultrix*)
+                           fmt=aout ;;
+      vax-*-vms)            fmt=vms ;;
+
+      z8k-*-coff | z8k-*-sim)
+                           fmt=coff ;;
+
+      w65-*-*)              fmt=coff ;;
+
+      *-*-aout | *-*-scout)
+                           fmt=aout ;;
+      *-*-nindy*)
+                           fmt=bout ;;
+      *-*-bsd*)
+                           fmt=aout em=sun3 ;;
+      *-*-generic)          fmt=generic ;;
+      *-*-xray | *-*-hms)   fmt=coff ;;
+      *-*-sim)              fmt=coff ;;
+      *-*-elf | *-*-sysv4* | *-*-solaris*)
+                           AC_MSG_WARN(GAS support for ${generic_target} is incomplete.)
+                           fmt=elf dev=yes ;;
+      *-*-vxworks)          fmt=aout ;;
+      *-*-netware)          fmt=elf ;;
+    esac
+
+    case ${cpu_type}-${fmt} in
+      arm-*)   bfd_gas=yes ;;
+    # not yet
+    # i386-aout)       bfd_gas=preferred ;;
+      mips-*)  bfd_gas=yes ;;
+      ns32k-*) bfd_gas=yes ;;
+      ppc-*)   bfd_gas=yes ;;
+      sparc-*) bfd_gas=yes ;;
+      *-elf)   bfd_gas=yes ;;
+      *-ecoff) bfd_gas=yes ;;
+      *-som)   bfd_gas=yes ;;
+      *)               ;;
+    esac
+
+# Other random stuff.
+
+    # do we need the opcodes library?
+    case ${cpu_type} in
+      alpha | vax | i386)
+       ;;
+      *)
+       need_opcodes=yes
+       if test "${shared_opcodes}" = "true"; then
+         # A shared libopcodes must be linked against libbfd.
+         need_bfd=yes
+       fi
+       ;;
+    esac
+
+    test -n "$want_sparc_v9" && AC_DEFINE(SPARC_V9)
+
+    case ${cpu}-${vendor}-${os} in
+      sparc64-*-elf*) AC_DEFINE(SPARC_ARCH64) ;;
+    esac
+
+    case ${cpu_type} in
+      m68k)
+       case ${extra_objects} in
+       *m68k-parse.o*) ;;
+       *) extra_objects="$extra_objects m68k-parse.o" ;;
+       esac
+       ;;
+    esac
+
+# See if we really can support this configuration with the emulation code.
+
+    if test $this_target = $target ; then
+      primary_bfd_gas=$bfd_gas
+      obj_format=$fmt
+      gas_target=$targ
+      te_file=$em
+
+      if test $bfd_gas = no ; then
+       # Can't support other configurations this way.
+       break
+      fi
+    elif test $bfd_gas = no ; then
+      # Can't support this configuration.
+      break
+    fi
+
+# From target name and format, produce a list of supported emulations.
+
+    case ${generic_target}-${fmt} in
+      mips-*-irix5*-*) emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
+      mips-*-*-ecoff)  case "$endian" in
+                       big)    emulation="mipsbecoff mipslecoff mipsecoff" ;;
+                       *)      emulation="mipslecoff mipsbecoff mipsecoff" ;;
+                       esac ;;
+      mips-*-*-elf)    case "$endian" in
+                       big)    emulation="mipsbelf mipslelf mipself" ;;
+                       *)      emulation="mipslelf mipsbelf mipself" ;;
+                       esac ;;
+    esac
+
+    emulations="$emulations $emulation"
+
+done
 
 # Assign floating point type.  Most processors with FP support
 # IEEE FP.  On those that don't support FP at all, usually IEEE
 # is emulated.
 case ${target_cpu} in
-  ns32k | vax | tahoe )        atof=${target_cpu} ;;
-  *)                   atof=ieee ;;
+  vax | tahoe )        atof=${target_cpu} ;;
+  *)           atof=ieee ;;
 esac
 
-if [ ! -r ${srcdir}/config/tc-${cpu_type}.c ]; then
-  echo '*** GAS does not support target CPU' ${cpu_type}               1>&2
-  exit 1
-fi
-
 case "${obj_format}" in
-  "")
-      echo "*** GAS doesn't know what format to use for target" ${target} 1>&2
-      exit 1
-      ;;
+  "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
 esac
 
-if [ ! -r ${srcdir}/config/obj-${obj_format}.c ]; then
-  echo '*** GAS does not have support for object file format' ${obj_format} 1>&2
-  exit 1
+dnl
+dnl Make sure the desired support files exist.
+dnl
+
+if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
+  AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
 fi
 
-# and target makefile frag
+if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
+  AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
+fi
 
-target_makefile_frag=config/${gas_target}.mt
+# and target makefile frag
 
-case ${bfd_gas}-${obj_format} in
-  yes-coffbfd) obj_format=coff ;;
-  no-coffbfd)  need_bfd=yes ;;
-  *-elf)       bfd_gas=yes ;;
-  *-ecoff)     bfd_gas=yes ;;
-  *-som)       bfd_gas=yes ;;
-  *)           ;;
-esac
+target_frag=${srcdir}/config/${gas_target}.mt
+if test ! -r ${target_frag}; then
+  target_frag=/dev/null # ick! but subst_file can't be conditionalized
+fi
+AC_SUBST_FILE(target_frag)
 
-case ${with_bfd_assembler}-${bfd_gas} in
+case ${user_bfd_gas}-${primary_bfd_gas} in
   yes-yes | no-no)
     # We didn't override user's choice.
     ;;
   no-yes)
-    echo '*** Use of BFD is required for ${target}; overriding config options'\
-               1>&2
+    AC_MSG_WARN(Use of BFD is required for ${target}; overriding config options.)
     ;;
   no-preferred)
-    bfd_gas=no
+    primary_bfd_gas=no
     ;;
   *-preferred)
-    bfd_gas=yes
+    primary_bfd_gas=yes
+    ;;
+  yes-*)
+    primary_bfd_gas=yes
     ;;
   -*)
     # User specified nothing.
     ;;
 esac
 
-reject_dev_configs=no
+# Some COFF configurations want these random other flags set.
+case ${obj_format} in
+  coff)
+    case ${target_cpu_type} in
+      i386) AC_DEFINE(I386COFF) ;;
+      m68k) AC_DEFINE(M68KCOFF) ;;
+      m88k) AC_DEFINE(M88KCOFF) ;;
+    esac
+    ;;
+esac
+
+# Getting this done right is going to be a bitch.  Each configuration specified
+# with --enable-targets=... should be checked for environment, format, cpu, and
+# bfd_gas setting.
+#
+# For each configuration, the necessary object file support code must be linked
+# in.  This might be only one, it might be up to four.  The necessary emulation
+# code needs to be provided, too.
+#
+# And then there's "--enable-targets=all"....
+#
+# For now, just always do it for MIPS ELF or ECOFF configurations.  Sigh.
+
+formats="${obj_format}"
+emfiles=""
+EMULATIONS=""
+GAS_UNIQ(emulations)
+for em in . $emulations ; do
+  case $em in
+    .) continue ;;
+    mipsbelf | mipslelf)
+       fmt=elf   file=mipself ;;
+    mipsbecoff | mipslecoff)
+       fmt=ecoff file=mipsecoff ;;
+  esac
+  formats="$formats $fmt"
+  emfiles="$emfiles e-$file.o"
+  EMULATIONS="$EMULATIONS &$em,"
+done
+GAS_UNIQ(formats)
+GAS_UNIQ(emfiles)
+if test `set . $formats ; shift ; echo $#` -gt 1 ; then
+  for fmt in $formats ; do
+    case $fmt in
+      aout)    AC_DEFINE(OBJ_MAYBE_AOUT)    ;;
+      bout)    AC_DEFINE(OBJ_MAYBE_BOUT)    ;;
+      coff)    AC_DEFINE(OBJ_MAYBE_COFF)    ;;
+      ecoff)   AC_DEFINE(OBJ_MAYBE_ECOFF)   ;;
+      elf)     AC_DEFINE(OBJ_MAYBE_ELF)     ;;
+      generic) AC_DEFINE(OBJ_MAYBE_GENERIC) ;;
+      hp300)   AC_DEFINE(OBJ_MAYBE_HP300)   ;;
+      ieee)    AC_DEFINE(OBJ_MAYBE_IEEE)    ;;
+      som)     AC_DEFINE(OBJ_MAYBE_SOM)     ;;
+      vms)     AC_DEFINE(OBJ_MAYBE_VMS)     ;;
+    esac
+    extra_objects="$extra_objects obj-$fmt.o"
+  done
+  obj_format=multi
+fi
+if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
+  te_file=multi
+  extra_objects="$extra_objects $emfiles"
+  DEFAULT_EMULATION=`set . $emulations ; echo $2`
+  AC_DEFINE(USE_EMULATIONS)
+fi
+AC_SUBST(extra_objects)
+AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS)
+AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION")
+
+files="config/tc-${target_cpu_type}.c config/tc-${target_cpu_type}.h \
+       config/obj-${obj_format}.h config/obj-${obj_format}.c \
+       config/te-${te_file}.h config/atof-${atof}.c \
+       $extra_files"
+links="targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c \
+       $extra_links"
+
+case ${primary_bfd_gas}-${target_cpu_type}-${obj_format} in
+  yes-*-coff)  need_bfd=yes ;;
+  no-*-coff)   need_bfd=yes
+               AC_DEFINE(MANY_SEGMENTS) ;;
+esac
+
+reject_dev_configs=yes
 
 case ${reject_dev_configs}-${dev} in
   yes-yes) # Oops.
-    echo "*** GAS does not support the ${generic_target} configuration" 1>&2
-    exit 1
+    AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
     ;;
 esac
 
-files="config/ho-${gas_host}.h config/tc-${cpu_type}.c \
-       config/tc-${cpu_type}.h config/te-${emulation}.h \
-       config/obj-${obj_format}.h config/obj-${obj_format}.c \
-       config/atof-${atof}.c"
-
-links="host.h targ-cpu.c targ-cpu.h targ-env.h obj-format.h obj-format.c atof-targ.c"
+AC_SUBST(target_cpu_type)
+AC_SUBST(obj_format)
+AC_SUBST(atof)
+dnl AC_SUBST(emulation)
 
-# post-target:
+AC_LINK_FILES($files, $links)
 
-case ${bfd_gas} in
-  yes) bfddef="BFDDEF=define" need_bfd=yes             ;;
-  *)    bfddef="BFDDEF=undef"                          ;;
+case "${primary_bfd_gas}" in
+  yes) AC_DEFINE(BFD_ASSEMBLER)
+       need_bfd=yes ;;
 esac
 
-case ${need_bfd} in
-  yes) bfdlib="BFDLIB=../bfd/libbfd.a"                 ;;
-  *)   bfdlib=""                                       ;;
+# do we need the opcodes library?
+case "${need_opcodes}" in
+  yes)
+    OPCODES_DEP=../opcodes/libopcodes.a
+    OPCODES_LIB='-L../opcodes -lopcodes'
+
+    # We need to handle some special cases if opcodes was built shared.
+    if test "${shared_opcodes}" = "true"; then
+      case "${host}" in
+      *-*-sunos*)
+      # On SunOS, we must link against the name we are going to install,
+      # not -lbfd, since SunOS does not support SONAME.
+      OPCODES_LIB='-L../opcodes -l`echo opcodes | sed '"'"'$(program_transform_name)'"'"'`'
+      ;;
+      esac
+    fi
+    ;;
 esac
+AC_SUBST(OPCODES_DEP)
+AC_SUBST(OPCODES_LIB)
 
-case "x${host}" in
-  "x${target}")        cross=""                                ;;
-  *)           cross="CROSS=-DCROSS_COMPILE"           ;;
+case "${need_bfd}" in
+  yes)
+    BFDDEP=../bfd/libbfd.a
+    BFDLIB='-L../bfd -lbfd'
+    ALL_OBJ_DEPS="$ALL_OBJ_DEPS ../bfd/bfd.h"
+
+    # We need to handle some special cases if BFD was built shared.
+    if test "${shared_bfd}" = "true"; then
+      case "${host}" in
+       *-*-sunos*)
+       # On SunOS, we must link against the name we are going to install,
+       # not -lbfd, since SunOS does not support SONAME.
+       BFDLIB='-L../bfd -l`echo bfd | sed '"'"'$(program_transform_name)'"'"'`'
+       ;;
+      esac
+    fi
+    ;;
 esac
+AC_SUBST(BFDDEP)
+AC_SUBST(BFDLIB)
+AC_SUBST(ALL_OBJ_DEPS)
+
+AC_DEFINE_UNQUOTED(TARGET_ALIAS,       "${target_alias}")
+AC_DEFINE_UNQUOTED(TARGET_CANONICAL,   "${target}")
+AC_DEFINE_UNQUOTED(TARGET_CPU,         "${target_cpu}")
+AC_DEFINE_UNQUOTED(TARGET_VENDOR,      "${target_vendor}")
+AC_DEFINE_UNQUOTED(TARGET_OS,          "${target_os}")
+
+AC_PROG_CC
+AC_PROG_INSTALL
+
+AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h)
+
+# Put this here so that autoconf's "cross-compiling" message doesn't confuse
+# people who are not cross-compiling but are compiling cross-assemblers.
+AC_MSG_CHECKING(whether compiling a cross-assembler)
+if test "${host}" = "${target}"; then
+  cross_gas=no
+else
+  cross_gas=yes
+  AC_DEFINE(CROSS_COMPILE)
+fi
+AC_MSG_RESULT($cross_gas)
+
+dnl ansidecl.h will deal with const
+dnl AC_CONST
+AC_FUNC_ALLOCA
+AC_C_INLINE
+
+# VMS doesn't have unlink.
+AC_CHECK_FUNCS(unlink remove, break)
+
+# Some systems don't have sbrk().
+AC_CHECK_FUNCS(sbrk)
+
+# Some non-ANSI preprocessors botch requoting inside strings.  That's bad
+# enough, but on some of those systems, the assert macro relies on requoting
+# working properly!
+GAS_WORKING_ASSERT
+
+# On some systems, the system header files may not declare malloc, realloc,
+# and free.  There are places where gas needs these functions to have been
+# declared -- such as when taking their addresses.
+gas_test_headers="
+#ifdef HAVE_MEMORY_H
+#include <memory.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+"
+GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
+GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
+
+# Does errno.h declare errno, or do we have to add a separate declaration
+# for it?
+GAS_CHECK_DECL_NEEDED(errno, f, int f, [
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+])
+
+HLDFLAGS=
+RPATH_ENVVAR=LD_LIBRARY_PATH
+# If we have shared libraries, try to set rpath reasonably.
+if test "${shared}" = "true"; then
+  case "${host}" in
+  *-*-hpux*)
+    HLDFLAGS='-Wl,+s,+b,$(libdir)'
+    RPATH_ENVVAR=SHLIB_PATH
+    ;;
+  *-*-irix5*)
+    HLDFLAGS='-Wl,-rpath,$(libdir)'
+    ;;
+  *-*-linux*aout*)
+    ;;
+  *-*-linux*)
+    HLDFLAGS='-Wl,-rpath,$(libdir)'
+    ;;
+  *-*-sysv4* | *-*-solaris*)
+    HLDFLAGS='-R $(libdir)'
+    ;;
+  esac
+fi
 
-rm -f Makefile.tem
-echo $bfddef >  Makefile.tem
-echo $bfdlib >> Makefile.tem
-echo $cross  >> Makefile.tem
-cat Makefile >> Makefile.tem
-mv -f Makefile.tem Makefile
+# On SunOS, if the linker supports the -rpath option, use it to
+# prevent ../bfd and ../opcodes from being included in the run time
+# search path.
+case "${host}" in
+  *-*-sunos*)
+    echo 'main () { }' > conftest.c
+    ${CC} -o conftest -Wl,-rpath= conftest.c >/dev/null 2>conftest.t
+    if grep 'unrecognized' conftest.t >/dev/null 2>&1; then
+      :
+    elif grep 'No such file' conftest.t >/dev/null 2>&1; then
+      :
+    elif grep 'do not mix' conftest.t >/dev/null 2>&1; then
+      :
+    elif test "${shared}" = "true"; then
+      HLDFLAGS='-Wl,-rpath=$(libdir)'
+    else
+      HLDFLAGS='-Wl,-rpath='
+    fi
+    rm -f conftest.t conftest.c conftest
+    ;;
+esac
+AC_SUBST(HLDFLAGS)
+AC_SUBST(RPATH_ENVVAR)
 
-# end of gas/configure.in
+dnl This must come last.
+AC_OUTPUT(Makefile doc/Makefile .gdbinit:gdbinit.in)
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