558 lines
16 KiB
Text
558 lines
16 KiB
Text
dnl Process this file with autoconf to produce a configure script.
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dnl
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dnl And be careful when changing it! If you must add tests with square
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dnl brackets, be sure changequote invocations surround it.
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dnl
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dnl
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AC_PREREQ(2.3)dnl We only need 2.0, but pre-2.3 loses on some AIX version.
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AC_INIT(as.h)dnl
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dnl
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user_bfd_gas=
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AC_ARG_ENABLE(bfd-assembler,
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[ bfd-assembler use BFD back end for writing object files],
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[case "${enableval}" in
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yes) need_bfd=yes user_bfd_gas=yes ;;
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no) user_bfd_gas=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} given for bfd-assembler option) ;;
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esac])dnl
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AC_ARG_ENABLE(targets,
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[ targets alternative target configurations besides the primary],
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[case "${enableval}" in
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yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
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;;
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no) enable_targets= ;;
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*) enable_targets=$enableval ;;
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esac])dnl
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# Generate a header file -- gets more post-processing by Makefile later.
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AC_CONFIG_HEADER(conf)
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dnl For recursion to work right, this must be an absolute pathname.
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AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
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AC_CANONICAL_SYSTEM
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AC_ARG_PROGRAM
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te_file=generic
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# assign cpu type
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# check for architecture variants
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case ${target_cpu} in
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hppa*) cpu_type=hppa ;;
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changequote(,)dnl
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i[45]86) cpu_type=i386 ;;
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m680[012346]0) cpu_type=m68k ;;
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m68008) cpu_type=m68k ;;
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m683??) cpu_type=m68k ;;
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changequote([,])dnl
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m8*) cpu_type=m88k ;;
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mips*el) cpu_type=mips endian=little;;
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mips*) cpu_type=mips endian=big ;;
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powerpcle*) cpu_type=ppc endian=little ;;
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powerpc*) cpu_type=ppc endian=big ;;
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rs6000*) cpu_type=ppc ;;
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sparc64) cpu_type=sparc obj_format=elf
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AC_DEFINE(sparcv9) ;;
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sparclite*) cpu_type=sparc ;;
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*) cpu_type=${target_cpu} ;;
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esac
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# do we need the opcodes library?
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case ${cpu_type} in
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alpha | vax)
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;;
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*)
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OPCODES_LIB="../opcodes/libopcodes.a"
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;;
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esac
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AC_SUBST(OPCODES_LIB)
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gas_target=${cpu_type}
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this_target=${generic_target}
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canon_targets=""
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if test -n "$enable_targets" ; then
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for t in `echo $enable_targets | sed 's/,/ /g'`; do
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result=`$ac_config_sub $t 2>/dev/null`
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if test -n "$result" ; then
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canon_targets="$canon_targets $result"
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# else
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# # Permit "all", etc. We don't support it yet though.
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# canon_targets="$canon_targets $t"
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fi
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done
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GAS_UNIQ(canon_targets)
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fi
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emulations=""
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for this_target in $target $canon_targets ; do
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eval `echo $this_target | sed 's/^\(.*\)-\(.*\)-\(.*\)$/cpu=\1 vendor=\2 os=\3/'`
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# check for architecture variants
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case ${cpu} in
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hppa*) cpu_type=hppa ;;
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changequote(,)dnl
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i[45]86) cpu_type=i386 ;;
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m680[012346]0) cpu_type=m68k ;;
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m68008) cpu_type=m68k ;;
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m683??) cpu_type=m68k ;;
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changequote([,])dnl
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m8*) cpu_type=m88k ;;
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mips*el) cpu_type=mips endian=little;;
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mips*) cpu_type=mips endian=big ;;
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powerpcle*) cpu_type=ppc endian=little ;;
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powerpc*) cpu_type=ppc endian=big ;;
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rs6000*) cpu_type=ppc ;;
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sparc64) cpu_type=sparc obj_format=elf want_sparcv9=true ;;
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sparclite*) cpu_type=sparc ;;
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*) cpu_type=${target_cpu} ;;
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esac
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if test ${this_target} = $target ; then
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target_cpu_type=${cpu_type}
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elif test ${target_cpu_type} != ${cpu_type} ; then
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continue
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fi
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targ=${cpu_type}
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generic_target=${cpu_type}-$vendor-$os
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dev=no
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bfd_gas=no
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em=generic
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# assign object format
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case ${generic_target} in
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a29k-amd-udi) fmt=coff targ=ebmon29k ;;
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a29k-amd-ebmon) fmt=coff targ=ebmon29k ;;
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a29k-*-vxworks*) fmt=coff ;;
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alpha-*-netware*) fmt=ecoff ;;
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alpha-*-osf*) fmt=ecoff ;;
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# start-sanitize-arc
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arc-*-elf*) fmt=elf bfd_gas=yes ;;
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# end-sanitize-arc
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arm-*-riscix*) fmt=aout ;;
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hppa-*-*elf*) fmt=elf em=hppa ;;
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hppa-*-lites*) fmt=elf em=hppa ;;
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hppa-*-osf*) fmt=som em=hppa ;;
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hppa-*-hpux*) fmt=som em=hppa ;;
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hppa-*-bsd*) fmt=som em=hppa ;;
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hppa-*-hiux*) fmt=som em=hppa ;;
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h8300-*-coff) fmt=coff ;;
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i386-ibm-aix*) fmt=coff targ=i386coff
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em=i386aix ;;
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i386-*-bsd*) fmt=aout em=386bsd ;;
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i386-*-netbsd0.8) fmt=aout em=386bsd ;;
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i386-*-netbsd*) fmt=aout em=nbsd bfd_gas=yes;;
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i386-*-linux*aout*) fmt=aout em=linux ;;
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i386-*-linux*coff*) fmt=coff em=linux
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targ=i386coff ;;
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i386-*-linux*) fmt=elf em=linux ;;
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i386-*-lynxos*) fmt=coff targ=i386coff
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em=lynx ;;
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i386-*-sysv4* | i386-*-solaris* | i386-*-elf)
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fmt=elf ;;
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i386-*-coff | i386-*-sysv* | i386-*-sco* | i386-*-isc*)
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fmt=coff targ=i386coff ;;
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i386-*-vsta) fmt=aout ;;
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i386-*-go32) fmt=coff targ=i386coff ;;
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i386-*-gnu*elf*) fmt=elf ;;
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i386-*-mach* | i386-*-gnu*)
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fmt=aout em=mach bfd_gas=yes ;;
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i386-*-msdos*) fmt=aout ;;
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i960-*-bout) fmt=bout ;;
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i960-*-coff) fmt=coff em=ic960 targ=ic960coff ;;
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i960-*-nindy*) fmt=bout ;;
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i960-*-vxworks4*) fmt=bout ;;
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i960-*-vxworks5.0) fmt=bout ;;
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i960-*-vxworks5.*) fmt=coff em=ic960 targ=ic960coff ;;
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i960-*-vxworks*) fmt=bout ;;
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m68k-*-vxworks* | m68k-ericsson-ose | m68k-*-sunos*)
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fmt=aout em=sun3 ;;
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m68k-motorola-sysv) fmt=coff targ=m68kcoff em=delta ;;
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m68k-bull-sysv3*) fmt=coff targ=m68kcoff em=dpx2 ;;
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m68k-apollo-*) fmt=coff targ=apollo em=apollo ;;
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m68k-*-coff | m68k-*-sysv*)
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fmt=coff targ=m68kcoff ;;
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m68k-*-elf) fmt=elf ;;
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m68k-*-hpux*) fmt=hp300 em=hp300 ;;
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m68k-*-lynxos*) fmt=coff targ=m68kcoff
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em=lynx ;;
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m68k-*-netbsd*) fmt=aout em=nbsd bfd_gas=yes ;;
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m88k-*-coff*) fmt=coff targ=m88kcoff ;;
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# don't change em like *-*-bsd does
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mips-dec-bsd*) fmt=aout targ=mips-lit ;;
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mips-sony-bsd*) fmt=ecoff targ=mips-big ;;
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mips-*-bsd*) AC_MSG_ERROR(Unknown vendor for mips-bsd configuration.) ;;
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mips-*-ultrix*) fmt=ecoff targ=mips-lit ;;
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mips-*-ecoff*) fmt=ecoff
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case "$endian" in
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big) targ=mips-big ;;
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*) targ=mips-lit ;;
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esac
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;;
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mips-*-ecoff*) fmt=ecoff targ=mips-big ;;
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mips-*-gnu*) fmt=aout
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case "$endian" in
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big) targ=mips-big ;;
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*) targ=mips-lit ;;
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esac
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;;
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mips-*-irix5*) fmt=elf targ=mips-big ;;
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mips-*-irix*) fmt=ecoff targ=mips-big ;;
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mips-*-riscos*) fmt=ecoff targ=mips-big ;;
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mips-*-sysv*) fmt=ecoff targ=mips-big ;;
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mips-*-elf*) fmt=elf
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case "$endian" in
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big) targ=mips-big ;;
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*) targ=mips-lit ;;
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esac
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;;
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ppc-*-aix*) fmt=coff ;;
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ppc-*-elf* | ppc-*-eabi* | ppc-*-sysv4*)
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fmt=elf
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case "$endian" in
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big) targ=ppc-big ;;
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*) targ=ppc-lit ;;
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esac
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;;
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ppc-*-netware*) fmt=elf em=ppcnw ;;
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sh-*-coff) fmt=coff ;;
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# start-sanitize-rce
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rce-*-aout) fmt=aout ;;
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# end-sanitize-rce
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ns32k-pc532-mach*) fmt=aout em=pc532mach ;;
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ns32k-pc532-netbsd*) fmt=aout em=nbsd532 ;;
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sparc-*-sunos4*) fmt=aout em=sun3 ;;
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sparc-*-aout | sparc*-*-vxworks)
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fmt=aout ;;
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sparc-*-coff) fmt=coff ;;
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sparc-*-lynxos*) fmt=coff em=lynx ;;
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sparc-fujitsu-none) fmt=aout ;;
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sparc-*-elf | sparc*-*-solaris*)
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fmt=elf ;;
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sparc-*-netbsd*) fmt=aout em=nbsd bfd_gas=yes ;;
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vax-*-bsd* | vax-*-ultrix*)
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fmt=aout ;;
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vax-*-vms) fmt=vms ;;
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z8k-*-coff | z8k-*-sim)
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fmt=coff ;;
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w65-*-*) fmt=coff ;;
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*-*-aout | *-*-scout)
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fmt=aout ;;
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*-*-nindy*)
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fmt=bout ;;
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*-*-bsd*)
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fmt=aout em=sun3 ;;
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*-*-generic) fmt=generic ;;
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*-*-xray | *-*-hms) fmt=coff ;;
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*-*-sim) fmt=coff ;;
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*-*-elf | *-*-sysv4* | *-*-solaris*)
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AC_MSG_WARN(GAS support for ELF format is incomplete.)
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fmt=elf dev=yes ;;
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*-*-vxworks) fmt=aout ;;
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*-*-netware) fmt=elf ;;
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esac
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case ${cpu_type}-${fmt} in
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arm-*) bfd_gas=yes ;;
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# not yet
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# i386-aout) bfd_gas=preferred ;;
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mips-*) bfd_gas=yes ;;
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ns32k-*) bfd_gas=yes ;;
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ppc-*) bfd_gas=yes ;;
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sparc-*) bfd_gas=yes ;;
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*-elf) bfd_gas=yes ;;
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*-ecoff) bfd_gas=yes ;;
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*-som) bfd_gas=yes ;;
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*) ;;
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esac
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# See if we really can support this configuration with the emulation code.
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if test $this_target = $target ; then
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primary_bfd_gas=$bfd_gas
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obj_format=$fmt
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gas_target=$targ
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te_file=$em
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if test $bfd_gas = no ; then
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# Can't support other configurations this way.
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break
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fi
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elif test $bfd_gas = no ; then
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# Can't support this configuration.
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break
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fi
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# From target name and format, produce a list of supported emulations.
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case ${generic_target}-${fmt} in
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mips-*-irix5*-*) emulation="mipsbelf mipslelf mipsbecoff mipslecoff" ;;
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mips-*-*-ecoff) case "$endian" in
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big) emulation="mipsbecoff mipslecoff" ;;
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*) emulation="mipslecoff mipsbecoff" ;;
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esac ;;
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mips-*-*-elf) case "$endian" in
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big) emulation="mipsbelf mipslelf" ;;
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*) emulation="mipslelf mipsbelf" ;;
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esac ;;
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esac
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emulations="$emulations $emulation"
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# Other random stuff.
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test -n "$want_sparcv9" && AC_DEFINE(sparcv9)
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done
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# Assign floating point type. Most processors with FP support
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# IEEE FP. On those that don't support FP at all, usually IEEE
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# is emulated.
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case ${target_cpu} in
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vax | tahoe ) atof=${target_cpu} ;;
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*) atof=ieee ;;
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esac
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case "${obj_format}" in
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"") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
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esac
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dnl
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dnl Make sure the desired support files exist.
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dnl
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if test ! -r ${srcdir}/config/tc-${cpu_type}.c; then
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AC_MSG_ERROR(GAS does not support target CPU ${cpu_type})
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fi
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if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
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AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
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fi
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# and target makefile frag
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target_frag=${srcdir}/config/${gas_target}.mt
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if test ! -r ${target_frag}; then
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target_frag=/dev/null # ick! but subst_file can't be conditionalized
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fi
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AC_SUBST_FILE(target_frag)
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case ${user_bfd_gas}-${primary_bfd_gas} in
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yes-yes | no-no)
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# We didn't override user's choice.
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;;
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no-yes)
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AC_MSG_WARN(Use of BFD is required for ${target}; overriding config options.)
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;;
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no-preferred)
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primary_bfd_gas=no
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;;
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*-preferred)
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primary_bfd_gas=yes
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;;
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yes-*)
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primary_bfd_gas=yes
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;;
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-*)
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# User specified nothing.
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;;
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esac
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# Some COFF configurations want these random other flags set.
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case ${obj_format} in
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coff)
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case ${target_cpu_type} in
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i386) AC_DEFINE(I386COFF) ;;
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m68k) AC_DEFINE(M68KCOFF) ;;
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m88k) AC_DEFINE(M88KCOFF) ;;
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esac
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;;
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esac
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# Getting this done right is going to be a bitch. Each configuration specified
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# with --enable-targets=... should be checked for environment, format, cpu, and
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# bfd_gas setting.
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#
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# For each configuration, the necessary object file support code must be linked
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# in. This might be only one, it might be up to four. The necessary emulation
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# code needs to be provided, too.
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#
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# And then there's "--enable-targets=all"....
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#
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# For now, just always do it for MIPS ELF or ECOFF configurations. Sigh.
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formats="${obj_format}"
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emfiles=""
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EMULATIONS=""
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GAS_UNIQ(emulations)
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for em in . $emulations ; do
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case $em in
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.) continue ;;
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mipsbelf | mipslelf)
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fmt=elf file=mipself ;;
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mipsbecoff | mipslecoff)
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fmt=ecoff file=mipsecoff ;;
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esac
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formats="$formats $fmt"
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emfiles="$emfiles e-$file.o"
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EMULATIONS="$EMULATIONS &$em,"
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done
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GAS_UNIQ(formats)
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GAS_UNIQ(emfiles)
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if test `set . $formats ; shift ; echo $#` -gt 1 ; then
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for fmt in $formats ; do
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case $fmt in
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aout) AC_DEFINE(OBJ_MAYBE_AOUT) ;;
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bout) AC_DEFINE(OBJ_MAYBE_BOUT) ;;
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coff) AC_DEFINE(OBJ_MAYBE_COFF) ;;
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ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF) ;;
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elf) AC_DEFINE(OBJ_MAYBE_ELF) ;;
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generic) AC_DEFINE(OBJ_MAYBE_GENERIC) ;;
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hp300) AC_DEFINE(OBJ_MAYBE_HP300) ;;
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ieee) AC_DEFINE(OBJ_MAYBE_IEEE) ;;
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som) AC_DEFINE(OBJ_MAYBE_SOM) ;;
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vms) AC_DEFINE(OBJ_MAYBE_VMS) ;;
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esac
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extra_objects="$extra_objects obj-$fmt.o"
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done
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obj_format=multi
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fi
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if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
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te_file=multi
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extra_objects="$extra_objects $emfiles"
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DEFAULT_EMULATION=`set . $emulations ; echo $2`
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AC_DEFINE(USE_EMULATIONS)
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fi
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AC_SUBST(extra_objects)
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AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS)
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AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION")
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files="config/tc-${cpu_type}.c config/tc-${cpu_type}.h \
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config/obj-${obj_format}.h config/obj-${obj_format}.c \
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config/te-${te_file}.h config/atof-${atof}.c \
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$extra_files"
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links="targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c \
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$extra_links"
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case ${primary_bfd_gas}-${cpu_type}-${obj_format} in
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yes-*-coff) need_bfd=yes ;;
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no-*-coff) need_bfd=yes
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AC_DEFINE(MANY_SEGMENTS) ;;
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esac
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reject_dev_configs=yes
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case ${reject_dev_configs}-${dev} in
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yes-yes) # Oops.
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AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
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;;
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esac
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AC_SUBST(cpu_type)
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AC_SUBST(obj_format)
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AC_SUBST(atof)
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dnl AC_SUBST(emulation)
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AC_LINK_FILES($files, $links)
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|
case "${primary_bfd_gas}" in
|
|
yes) AC_DEFINE(BFD_ASSEMBLER)
|
|
need_bfd=yes ;;
|
|
esac
|
|
|
|
case "${need_bfd}" in
|
|
yes) BFDLIB=../bfd/libbfd.a
|
|
ALL_OBJ_DEPS="$ALL_OBJ_DEPS ../bfd/bfd.h"
|
|
;;
|
|
esac
|
|
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 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, int 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
|
|
])
|
|
|
|
AC_CONFIG_SUBDIRS(testsuite)
|
|
|
|
dnl This must come last.
|
|
AC_OUTPUT(Makefile doc/Makefile .gdbinit:gdbinit.in)
|