[deliverable/binutils-gdb.git] / gas / configure.in

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,
[    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

# 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

# assign cpu type

# check for architecture variants
case ${target_cpu} in
  armeb)	cpu_type=arm endian=big ;;
  arm*)		cpu_type=arm endian=little ;;
  hppa*)	cpu_type=hppa ;;
changequote(,)dnl
  i[45]86)	cpu_type=i386 ;;
  m680[012346]0) cpu_type=m68k ;;
  m68008)	cpu_type=m68k ;;
  m683??)       cpu_type=m68k ;;
changequote([,])dnl
  m8*)		cpu_type=m88k ;;
  mips*el)	cpu_type=mips endian=little;;
  mips*)	cpu_type=mips endian=big ;;
  powerpcle*)	cpu_type=ppc endian=little ;;
  powerpc*)	cpu_type=ppc endian=big ;;
  rs6000*)	cpu_type=ppc ;;
  sparc64)	cpu_type=sparc obj_format=elf
		AC_DEFINE(sparcv9) ;;
  sparclite*)   cpu_type=sparc ;;
  *)		cpu_type=${target_cpu} ;;
esac

# do we need the opcodes library?
case ${cpu_type} in
  alpha | vax)
    ;;
  *)
    OPCODES_LIB="../opcodes/libopcodes.a"
    ;;
esac
AC_SUBST(OPCODES_LIB)

gas_target=${cpu_type}
this_target=${generic_target}

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

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 ${cpu} in
      hppa*)		cpu_type=hppa ;;
changequote(,)dnl
      i[45]86)		cpu_type=i386 ;;
      m680[012346]0)	cpu_type=m68k ;;
      m68008)		cpu_type=m68k ;;
      m683??)		cpu_type=m68k ;;
changequote([,])dnl
      m8*)		cpu_type=m88k ;;
      mips*el)		cpu_type=mips endian=little;;
      mips*)		cpu_type=mips endian=big ;;
      powerpcle*)	cpu_type=ppc endian=little ;;
      powerpc*)		cpu_type=ppc endian=big ;;
      rs6000*)		cpu_type=ppc ;;
      sparc64)		cpu_type=sparc obj_format=elf want_sparcv9=true ;;
      sparclite*)	cpu_type=sparc ;;
      *)		cpu_type=${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-amd-udi)         fmt=coff targ=ebmon29k ;;
      a29k-amd-ebmon)       fmt=coff targ=ebmon29k ;;
      a29k-*-vxworks*)      fmt=coff ;;

      alpha-*-netware*)     fmt=ecoff ;;
      alpha-*-osf*)         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-*-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)
			    fmt=elf ;;
      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-*-win32)         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-*-coff | m68k-*-sysv*)
			    fmt=coff targ=m68kcoff ;;
      m68k-*-elf)           fmt=elf ;;
      m68k-*-hpux*)         fmt=hp300 em=hp300 ;;
      m68k-*-lynxos*)       fmt=coff targ=m68kcoff
			     em=lynx ;;
      m68k-*-netbsd*)       fmt=aout em=nbsd bfd_gas=yes ;;

      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 "$endian" in
			    big) targ=mips-big ;;
			    *)   targ=mips-lit ;;
			    esac
			    ;;
      ppc-*-pe)             fmt=coff em=pe 
			    case "$endian" in
			    big) targ=ppc-big ;;
			    *)   targ=ppc-lit ;;
			    esac
                            ;;
      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-*-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 ELF format 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.

    test -n "$want_sparcv9" && AC_DEFINE(sparcv9)

    case ${cpu_type} in
      m68k) extra_objects="$extra_objects m68k-parse.o" ;;
    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 ${target_cpu} in
  vax | tahoe )	atof=${target_cpu} ;;
  *)		atof=ieee ;;
esac

case "${obj_format}" in
  "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
esac

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

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

# and target makefile frag

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 ${user_bfd_gas}-${primary_bfd_gas} in
  yes-yes | no-no)
    # We didn't override user's choice.
    ;;
  no-yes)
    AC_MSG_WARN(Use of BFD is required for ${target}; overriding config options.)
    ;;
  no-preferred)
    primary_bfd_gas=no
    ;;
  *-preferred)
    primary_bfd_gas=yes
    ;;
  yes-*)
    primary_bfd_gas=yes
    ;;
  -*)
    # User specified nothing.
    ;;
esac

# 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.
    AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
    ;;
esac

AC_SUBST(target_cpu_type)
AC_SUBST(obj_format)
AC_SUBST(atof)
dnl AC_SUBST(emulation)

AC_LINK_FILES($files, $links)

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 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
])

dnl This must come last.
AC_OUTPUT(Makefile doc/Makefile .gdbinit:gdbinit.in)
Commit	Line	Data
b11fb939 KR	1	dnl Process this file with autoconf to produce a configure script.
	2	dnl
	3	dnl And be careful when changing it! If you must add tests with square
	4	dnl brackets, be sure changequote invocations surround it.
	5	dnl
b11fb939	6	dnl
833c46e1	7	AC_PREREQ(2.3)dnl We only need 2.0, but pre-2.3 loses on some AIX version.
28d3e4a3	8	AC_INIT(as.h)dnl
b11fb939	9	dnl
318b02b6	10	user_bfd_gas=
b11fb939 KR	11	AC_ARG_ENABLE(bfd-assembler,
	12	[ bfd-assembler use BFD back end for writing object files],
	13	[case "${enableval}" in
318b02b6 KR	14	yes) need_bfd=yes user_bfd_gas=yes ;;
318b02b6 KR	15	no) user_bfd_gas=no ;;
b11fb939 KR	16	*) AC_MSG_ERROR(bad value ${enableval} given for bfd-assembler option) ;;
b11fb939 KR	17	esac])dnl
e7757ad0 KR	18	AC_ARG_ENABLE(targets,
	19	[ targets alternative target configurations besides the primary],
	20	[case "${enableval}" in
	21	yes \| "") AC_ERROR(enable-targets option must specify target names or 'all')
	22	;;
	23	no) enable_targets= ;;
	24	*) enable_targets=$enableval ;;
	25	esac])dnl
b11fb939 KR	26
	27	# Generate a header file -- gets more post-processing by Makefile later.
	28	AC_CONFIG_HEADER(conf)
	29
	30	dnl For recursion to work right, this must be an absolute pathname.
	31	AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
	32	AC_CANONICAL_SYSTEM
bf111c9f	33	AC_ARG_PROGRAM
7cf4d7ff	34
e7757ad0	35	te_file=generic
b678740d	36
b11fb939	37	# assign cpu type
5f8a3788	38
b53ccaac ILT	39	# check for architecture variants
b53ccaac ILT	40	case ${target_cpu} in
1cb0d00d	41	armeb) cpu_type=arm endian=big ;;
a1c7c0f3	42	arm*) cpu_type=arm endian=little ;;
8cac6ca6	43	hppa*) cpu_type=hppa ;;
b11fb939	44	changequote(,)dnl
904b6037	45	i[45]86) cpu_type=i386 ;;
82489ea0	46	m680[012346]0) cpu_type=m68k ;;
8cac6ca6 KR	47	m68008) cpu_type=m68k ;;
8cac6ca6 KR	48	m683??) cpu_type=m68k ;;
b11fb939	49	changequote([,])dnl
8cac6ca6	50	m8*) cpu_type=m88k ;;
5f8a3788	51	mips*el) cpu_type=mips endian=little;;
b11fb939	52	mips*) cpu_type=mips endian=big ;;
e7757ad0 KR	53	powerpcle*) cpu_type=ppc endian=little ;;
e7757ad0 KR	54	powerpc*) cpu_type=ppc endian=big ;;
1c11ab0e	55	rs6000*) cpu_type=ppc ;;
f2889110 KR	56	sparc64) cpu_type=sparc obj_format=elf
f2889110 KR	57	AC_DEFINE(sparcv9) ;;
8cac6ca6	58	sparclite*) cpu_type=sparc ;;
7cf4d7ff	59	*) cpu_type=${target_cpu} ;;
b53ccaac ILT	60	esac
b53ccaac ILT	61
634233a3 KR	62	# do we need the opcodes library?
	63	case ${cpu_type} in
	64	alpha \| vax)
634233a3 KR	65	;;
634233a3 KR	66	*)
b11fb939	67	OPCODES_LIB="../opcodes/libopcodes.a"
634233a3 KR	68	;;
634233a3 KR	69	esac
b11fb939	70	AC_SUBST(OPCODES_LIB)
634233a3	71
b53ccaac	72	gas_target=${cpu_type}
e7757ad0 KR	73	this_target=${generic_target}
	74
	75	canon_targets=""
	76	if test -n "$enable_targets" ; then
	77	for t in `echo $enable_targets \| sed 's/,/ /g'`; do
	78	result=`$ac_config_sub $t 2>/dev/null`
	79	if test -n "$result" ; then
	80	canon_targets="$canon_targets $result"
	81	# else
	82	# # Permit "all", etc. We don't support it yet though.
	83	# canon_targets="$canon_targets $t"
	84	fi
	85	done
	86	GAS_UNIQ(canon_targets)
	87	fi
	88
	89	emulations=""
	90
	91	for this_target in $target $canon_targets ; do
	92
	93	eval `echo $this_target \| sed 's/^\(.\)-\(.\)-\(.*\)$/cpu=\1 vendor=\2 os=\3/'`
8cac6ca6	94
e7757ad0 KR	95	# check for architecture variants
	96	case ${cpu} in
	97	hppa*) cpu_type=hppa ;;
	98	changequote(,)dnl
	99	i[45]86) cpu_type=i386 ;;
	100	m680[012346]0) cpu_type=m68k ;;
	101	m68008) cpu_type=m68k ;;
	102	m683??) cpu_type=m68k ;;
	103	changequote([,])dnl
	104	m8*) cpu_type=m88k ;;
	105	mips*el) cpu_type=mips endian=little;;
	106	mips*) cpu_type=mips endian=big ;;
	107	powerpcle*) cpu_type=ppc endian=little ;;
	108	powerpc*) cpu_type=ppc endian=big ;;
	109	rs6000*) cpu_type=ppc ;;
	110	sparc64) cpu_type=sparc obj_format=elf want_sparcv9=true ;;
	111	sparclite*) cpu_type=sparc ;;
a1c7c0f3	112	*) cpu_type=${cpu} ;;
e7757ad0 KR	113	esac
	114
	115	if test ${this_target} = $target ; then
	116	target_cpu_type=${cpu_type}
	117	elif test ${target_cpu_type} != ${cpu_type} ; then
	118	continue
	119	fi
	120
	121	targ=${cpu_type}
	122	generic_target=${cpu_type}-$vendor-$os
	123	dev=no
	124	bfd_gas=no
	125	em=generic
7cf4d7ff	126
e7757ad0 KR	127	# assign object format
	128	case ${generic_target} in
	129	a29k-amd-udi) fmt=coff targ=ebmon29k ;;
	130	a29k-amd-ebmon) fmt=coff targ=ebmon29k ;;
	131	a29k--vxworks) fmt=coff ;;
	132
	133	alpha--netware) fmt=ecoff ;;
	134	alpha--osf) fmt=ecoff ;;
816153a3	135
4181c985	136	# start-sanitize-arc
e7757ad0	137	arc--elf) fmt=elf bfd_gas=yes ;;
4181c985 KR	138	# end-sanitize-arc
4181c985 KR	139
a1c7c0f3	140	arm--riscix) fmt=aout targ=arm-lit ;;
1cb0d00d KR	141	arm-*-aout) fmt=aout
	142	case "$endian" in
	143	big) targ=arm-big ;;
	144	*) targ=arm-lit ;;
	145	esac
	146	;;
e7757ad0	147	arm--riscix) fmt=aout ;;
1cb0d00d	148	arm-*-pe) fmt=coff targ=armcoff em=pe ;;
e7757ad0 KR	149
	150	hppa--elf*) fmt=elf em=hppa ;;
	151	hppa--lites) fmt=elf em=hppa ;;
	152	hppa--osf) fmt=som em=hppa ;;
	153	hppa--hpux) fmt=som em=hppa ;;
	154	hppa--bsd) fmt=som em=hppa ;;
	155	hppa--hiux) fmt=som em=hppa ;;
	156
	157	h8300-*-coff) fmt=coff ;;
	158
	159	i386-ibm-aix*) fmt=coff targ=i386coff
	160	em=i386aix ;;
	161	i386--bsd) fmt=aout em=386bsd ;;
	162	i386-*-netbsd0.8) fmt=aout em=386bsd ;;
	163	i386--netbsd) fmt=aout em=nbsd bfd_gas=yes;;
a1c7c0f3	164	i386--linuxaout* \| i386-*-linuxoldld) fmt=aout em=linux ;;
e7757ad0 KR	165	i386--linuxcoff*) fmt=coff em=linux
	166	targ=i386coff ;;
	167	i386--linux) fmt=elf em=linux ;;
	168	i386--lynxos) fmt=coff targ=i386coff
	169	em=lynx ;;
	170	i386--sysv4 \| i386--solaris \| i386-*-elf)
	171	fmt=elf ;;
	172	i386--coff \| i386--sysv* \| i386--sco \| i386--isc)
	173	fmt=coff targ=i386coff ;;
	174	i386-*-vsta) fmt=aout ;;
	175	i386-*-go32) fmt=coff targ=i386coff ;;
6c186c48 SC	176	i386--gnu) fmt=elf ;;
6c186c48 SC	177	i386--mach)
e7757ad0 KR	178	fmt=aout em=mach bfd_gas=yes ;;
e7757ad0 KR	179	i386--msdos) fmt=aout ;;
6c186c48	180	i386--moss) fmt=elf ;;
1cb0d00d	181	i386-*-pe) fmt=coff targ=i386coff em=pe ;;
6c186c48	182	i386-*-win32) fmt=coff targ=i386coff em=pe ;;
1cb0d00d	183	i386--nt) fmt=coff targ=i386coff em=pe ;;
e7757ad0 KR	184	i960-*-bout) fmt=bout ;;
	185	i960-*-coff) fmt=coff em=ic960 targ=ic960coff ;;
	186	i960--nindy) fmt=bout ;;
	187	i960--vxworks4) fmt=bout ;;
	188	i960-*-vxworks5.0) fmt=bout ;;
	189	i960--vxworks5.) fmt=coff em=ic960 targ=ic960coff ;;
	190	i960--vxworks) fmt=bout ;;
	191
	192	m68k--vxworks \| m68k-ericsson-ose \| m68k--sunos)
	193	fmt=aout em=sun3 ;;
	194	m68k-motorola-sysv) fmt=coff targ=m68kcoff em=delta ;;
	195	m68k-bull-sysv3*) fmt=coff targ=m68kcoff em=dpx2 ;;
	196	m68k-apollo-*) fmt=coff targ=apollo em=apollo ;;
	197	m68k--coff \| m68k--sysv*)
	198	fmt=coff targ=m68kcoff ;;
	199	m68k-*-elf) fmt=elf ;;
	200	m68k--hpux) fmt=hp300 em=hp300 ;;
	201	m68k--lynxos) fmt=coff targ=m68kcoff
	202	em=lynx ;;
	203	m68k--netbsd) fmt=aout em=nbsd bfd_gas=yes ;;
	204
	205	m88k--coff) fmt=coff targ=m88kcoff ;;
	206
	207	# don't change em like --bsd does
057a4d41	208	mips-dec-netbsd*) fmt=elf targ=mips-lit endian=little ;;
e7757ad0 KR	209	mips-dec-bsd*) fmt=aout targ=mips-lit ;;
	210	mips-sony-bsd*) fmt=ecoff targ=mips-big ;;
	211	mips--bsd) AC_MSG_ERROR(Unknown vendor for mips-bsd configuration.) ;;
70f4dbce	212	mips--ultrix) fmt=ecoff targ=mips-lit endian=little ;;
e7757ad0 KR	213	mips--ecoff) fmt=ecoff
	214	case "$endian" in
	215	big) targ=mips-big ;;
	216	*) targ=mips-lit ;;
	217	esac
	218	;;
	219	mips--ecoff) fmt=ecoff targ=mips-big ;;
	220	mips--gnu) fmt=aout
	221	case "$endian" in
	222	big) targ=mips-big ;;
	223	*) targ=mips-lit ;;
	224	esac
	225	;;
	226	mips--irix5) fmt=elf targ=mips-big ;;
	227	mips--irix) fmt=ecoff targ=mips-big ;;
	228	mips--riscos) fmt=ecoff targ=mips-big ;;
	229	mips--sysv) fmt=ecoff targ=mips-big ;;
	230	mips--elf) fmt=elf
	231	case "$endian" in
	232	big) targ=mips-big ;;
	233	*) targ=mips-lit ;;
	234	esac
	235	;;
85cc2190 KK	236	ppc-*-pe) fmt=coff em=pe
	237	case "$endian" in
	238	big) targ=ppc-big ;;
	239	*) targ=ppc-lit ;;
	240	esac
	241	;;
	242	ppc--winnt) fmt=coff em=pe
	243	case "$endian" in
	244	big) targ=ppc-big ;;
	245	*) targ=ppc-lit ;;
	246	esac
	247	;;
e7757ad0 KR	248	ppc--aix) fmt=coff ;;
	249	ppc--elf \| ppc--eabi \| ppc--sysv4)
	250	fmt=elf
	251	case "$endian" in
	252	big) targ=ppc-big ;;
	253	*) targ=ppc-lit ;;
	254	esac
	255	;;
	256	ppc--netware) fmt=elf em=ppcnw ;;
	257
	258	sh-*-coff) fmt=coff ;;
816153a3	259
03c4ce2f	260	# start-sanitize-rce
e7757ad0	261	rce-*-aout) fmt=aout ;;
03c4ce2f	262	# end-sanitize-rce
d94aca1a	263
5f757edc ILT	264	ns32k-pc532-mach* \| ns32k-pc532-ux*) fmt=aout em=pc532mach ;;
5f757edc ILT	265	ns32k-pc532-netbsd* \| ns32k-pc532-lites*) fmt=aout em=nbsd532 ;;
e7757ad0 KR	266
	267	sparc--sunos4) fmt=aout em=sun3 ;;
	268	sparc--aout \| sparc-*-vxworks)
	269	fmt=aout ;;
	270	sparc-*-coff) fmt=coff ;;
	271	sparc--lynxos) fmt=coff em=lynx ;;
	272	sparc-fujitsu-none) fmt=aout ;;
	273	sparc--elf \| sparc--solaris)
	274	fmt=elf ;;
	275	sparc--netbsd) fmt=aout em=nbsd bfd_gas=yes ;;
	276
	277	vax--bsd \| vax--ultrix)
	278	fmt=aout ;;
	279	vax-*-vms) fmt=vms ;;
	280
	281	z8k--coff \| z8k--sim)
	282	fmt=coff ;;
	283
	284	w65--) fmt=coff ;;
	285
	286	--aout \| --scout)
	287	fmt=aout ;;
	288	--nindy*)
	289	fmt=bout ;;
	290	--bsd*)
	291	fmt=aout em=sun3 ;;
	292	--generic) fmt=generic ;;
	293	--xray \| --hms) fmt=coff ;;
	294	--sim) fmt=coff ;;
	295	--elf \| --sysv4* \| --solaris*)
	296	AC_MSG_WARN(GAS support for ELF format is incomplete.)
	297	fmt=elf dev=yes ;;
	298	--vxworks) fmt=aout ;;
	299	--netware) fmt=elf ;;
	300	esac
	301
	302	case ${cpu_type}-${fmt} in
	303	arm-*) bfd_gas=yes ;;
	304	# not yet
	305	# i386-aout) bfd_gas=preferred ;;
	306	mips-*) bfd_gas=yes ;;
	307	ns32k-*) bfd_gas=yes ;;
	308	ppc-*) bfd_gas=yes ;;
	309	sparc-*) bfd_gas=yes ;;
	310	*-elf) bfd_gas=yes ;;
	311	*-ecoff) bfd_gas=yes ;;
	312	*-som) bfd_gas=yes ;;
	313	*) ;;
	314	esac
	315
5f757edc ILT	316	# Other random stuff.
	317
	318	test -n "$want_sparcv9" && AC_DEFINE(sparcv9)
	319
	320	case ${cpu_type} in
	321	m68k) extra_objects="$extra_objects m68k-parse.o" ;;
	322	esac
	323
e7757ad0 KR	324	# See if we really can support this configuration with the emulation code.
	325
	326	if test $this_target = $target ; then
	327	primary_bfd_gas=$bfd_gas
	328	obj_format=$fmt
	329	gas_target=$targ
	330	te_file=$em
	331
	332	if test $bfd_gas = no ; then
	333	# Can't support other configurations this way.
	334	break
	335	fi
	336	elif test $bfd_gas = no ; then
	337	# Can't support this configuration.
	338	break
	339	fi
	340
	341	# From target name and format, produce a list of supported emulations.
	342
	343	case ${generic_target}-${fmt} in
1cb0d00d	344	mips--irix5-*) emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
e7757ad0	345	mips---ecoff) case "$endian" in
1cb0d00d KR	346	big) emulation="mipsbecoff mipslecoff mipsecoff" ;;
1cb0d00d KR	347	*) emulation="mipslecoff mipsbecoff mipsecoff" ;;
e7757ad0 KR	348	esac ;;
e7757ad0 KR	349	mips---elf) case "$endian" in
1cb0d00d KR	350	big) emulation="mipsbelf mipslelf mipself" ;;
1cb0d00d KR	351	*) emulation="mipslelf mipsbelf mipself" ;;
e7757ad0 KR	352	esac ;;
	353	esac
	354
	355	emulations="$emulations $emulation"
	356
e7757ad0	357	done
fecd2382	358
8cac6ca6 KR	359	# Assign floating point type. Most processors with FP support
	360	# IEEE FP. On those that don't support FP at all, usually IEEE
	361	# is emulated.
b678740d	362	case ${target_cpu} in
904b6037	363	vax \| tahoe ) atof=${target_cpu} ;;
e7757ad0	364	*) atof=ieee ;;
fecd2382 RP	365	esac
fecd2382 RP	366
8cac6ca6	367	case "${obj_format}" in
b11fb939	368	"") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
8cac6ca6	369	esac
7cf4d7ff	370
b11fb939 KR	371	dnl
	372	dnl Make sure the desired support files exist.
	373	dnl
	374
bf4bd1fc ILT	375	if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
bf4bd1fc ILT	376	AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
b11fb939 KR	377	fi
b11fb939 KR	378
fb589130	379	if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
b11fb939	380	AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
7cf4d7ff KR	381	fi
7cf4d7ff KR	382
8a24a37c SC	383	# and target makefile frag
8a24a37c SC	384
b11fb939	385	target_frag=${srcdir}/config/${gas_target}.mt
f2889110 KR	386	if test ! -r ${target_frag}; then
	387	target_frag=/dev/null # ick! but subst_file can't be conditionalized
	388	fi
b11fb939	389	AC_SUBST_FILE(target_frag)
8a24a37c	390
e7757ad0	391	case ${user_bfd_gas}-${primary_bfd_gas} in
a8285504	392	yes-yes \| no-no)
7cf4d7ff KR	393	# We didn't override user's choice.
7cf4d7ff KR	394	;;
a8285504	395	no-yes)
b11fb939	396	AC_MSG_WARN(Use of BFD is required for ${target}; overriding config options.)
7cf4d7ff	397	;;
a8285504	398	no-preferred)
e7757ad0	399	primary_bfd_gas=no
a8285504 DZ	400	;;
a8285504 DZ	401	*-preferred)
e7757ad0	402	primary_bfd_gas=yes
a8285504	403	;;
f2889110	404	yes-*)
e7757ad0	405	primary_bfd_gas=yes
f2889110	406	;;
a8285504 DZ	407	-*)
	408	# User specified nothing.
	409	;;
7cf4d7ff KR	410	esac
7cf4d7ff KR	411
e7757ad0 KR	412	# Some COFF configurations want these random other flags set.
	413	case ${obj_format} in
	414	coff)
	415	case ${target_cpu_type} in
	416	i386) AC_DEFINE(I386COFF) ;;
	417	m68k) AC_DEFINE(M68KCOFF) ;;
	418	m88k) AC_DEFINE(M88KCOFF) ;;
	419	esac
	420	;;
	421	esac
	422
	423	# Getting this done right is going to be a bitch. Each configuration specified
	424	# with --enable-targets=... should be checked for environment, format, cpu, and
	425	# bfd_gas setting.
	426	#
	427	# For each configuration, the necessary object file support code must be linked
	428	# in. This might be only one, it might be up to four. The necessary emulation
	429	# code needs to be provided, too.
	430	#
	431	# And then there's "--enable-targets=all"....
	432	#
	433	# For now, just always do it for MIPS ELF or ECOFF configurations. Sigh.
	434
	435	formats="${obj_format}"
	436	emfiles=""
	437	EMULATIONS=""
	438	GAS_UNIQ(emulations)
	439	for em in . $emulations ; do
	440	case $em in
	441	.) continue ;;
	442	mipsbelf \| mipslelf)
	443	fmt=elf file=mipself ;;
	444	mipsbecoff \| mipslecoff)
	445	fmt=ecoff file=mipsecoff ;;
	446	esac
	447	formats="$formats $fmt"
	448	emfiles="$emfiles e-$file.o"
	449	EMULATIONS="$EMULATIONS &$em,"
	450	done
	451	GAS_UNIQ(formats)
	452	GAS_UNIQ(emfiles)
	453	if test `set . $formats ; shift ; echo $#` -gt 1 ; then
	454	for fmt in $formats ; do
	455	case $fmt in
	456	aout) AC_DEFINE(OBJ_MAYBE_AOUT) ;;
	457	bout) AC_DEFINE(OBJ_MAYBE_BOUT) ;;
	458	coff) AC_DEFINE(OBJ_MAYBE_COFF) ;;
	459	ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF) ;;
	460	elf) AC_DEFINE(OBJ_MAYBE_ELF) ;;
	461	generic) AC_DEFINE(OBJ_MAYBE_GENERIC) ;;
	462	hp300) AC_DEFINE(OBJ_MAYBE_HP300) ;;
	463	ieee) AC_DEFINE(OBJ_MAYBE_IEEE) ;;
	464	som) AC_DEFINE(OBJ_MAYBE_SOM) ;;
	465	vms) AC_DEFINE(OBJ_MAYBE_VMS) ;;
	466	esac
	467	extra_objects="$extra_objects obj-$fmt.o"
	468	done
	469	obj_format=multi
	470	fi
	471	if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
	472	te_file=multi
	473	extra_objects="$extra_objects $emfiles"
	474	DEFAULT_EMULATION=`set . $emulations ; echo $2`
	475	AC_DEFINE(USE_EMULATIONS)
476	fi
477	AC_SUBST(extra_objects)
478	AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS)
479	AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION")
480
bf4bd1fc	481	files="config/tc-${target_cpu_type}.c config/tc-${target_cpu_type}.h \
e7757ad0 KR	482	config/obj-${obj_format}.h config/obj-${obj_format}.c \
	483	config/te-${te_file}.h config/atof-${atof}.c \
	484	$extra_files"
	485	links="targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c \
	486	$extra_links"
	487
bf4bd1fc	488	case ${primary_bfd_gas}-${target_cpu_type}-${obj_format} in
318b02b6 KR	489	yes-*-coff) need_bfd=yes ;;
	490	no-*-coff) need_bfd=yes
	491	AC_DEFINE(MANY_SEGMENTS) ;;
	492	esac
	493
69ecc03f	494	reject_dev_configs=yes
8cac6ca6 KR	495
	496	case ${reject_dev_configs}-${dev} in
	497	yes-yes) # Oops.
b11fb939	498	AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
8cac6ca6 KR	499	;;
	500	esac
	501
bf4bd1fc	502	AC_SUBST(target_cpu_type)
833c46e1 KR	503	AC_SUBST(obj_format)
833c46e1 KR	504	AC_SUBST(atof)
e7757ad0	505	dnl AC_SUBST(emulation)
833c46e1	506
e7757ad0	507	AC_LINK_FILES($files, $links)
8b228fe9	508
e7757ad0	509	case "${primary_bfd_gas}" in
b11fb939 KR	510	yes) AC_DEFINE(BFD_ASSEMBLER)
b11fb939 KR	511	need_bfd=yes ;;
4f6f4aa8 KR	512	esac
4f6f4aa8 KR	513
b11fb939 KR	514	case "${need_bfd}" in
	515	yes) BFDLIB=../bfd/libbfd.a
	516	ALL_OBJ_DEPS="$ALL_OBJ_DEPS ../bfd/bfd.h"
c92d9ee9	517	;;
4f6f4aa8	518	esac
b11fb939 KR	519	AC_SUBST(BFDLIB)
b11fb939 KR	520	AC_SUBST(ALL_OBJ_DEPS)
4f6f4aa8	521
b11fb939 KR	522	AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}")
	523	AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}")
	524	AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}")
	525	AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}")
	526	AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}")
	527
b11fb939 KR	528	AC_PROG_CC
	529	AC_PROG_INSTALL
	530
b11fb939 KR	531	AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h)
b11fb939 KR	532
bf111c9f KR	533	# Put this here so that autoconf's "cross-compiling" message doesn't confuse
	534	# people who are not cross-compiling but are compiling cross-assemblers.
	535	AC_MSG_CHECKING(whether compiling a cross-assembler)
	536	if test "${host}" = "${target}"; then
f2889110 KR	537	cross_gas=no
f2889110 KR	538	else
bf111c9f KR	539	cross_gas=yes
bf111c9f KR	540	AC_DEFINE(CROSS_COMPILE)
bf111c9f KR	541	fi
	542	AC_MSG_RESULT($cross_gas)
	543
b11fb939 KR	544	dnl ansidecl.h will deal with const
	545	dnl AC_CONST
	546	AC_FUNC_ALLOCA
	547	AC_C_INLINE
	548
f2889110 KR	549	# VMS doesn't have unlink.
f2889110 KR	550	AC_CHECK_FUNCS(unlink remove, break)
28d3e4a3	551
e63c594d FF	552	# Some systems don't have sbrk().
	553	AC_CHECK_FUNCS(sbrk)
	554
b11fb939 KR	555	# Some non-ANSI preprocessors botch requoting inside strings. That's bad
	556	# enough, but on some of those systems, the assert macro relies on requoting
	557	# working properly!
bf111c9f	558	GAS_WORKING_ASSERT
b11fb939 KR	559
	560	# On some systems, the system header files may not declare malloc, realloc,
	561	# and free. There are places where gas needs these functions to have been
	562	# declared -- such as when taking their addresses.
bf111c9f	563	gas_test_headers="
b11fb939 KR	564	#ifdef HAVE_MEMORY_H
	565	#include <memory.h>
	566	#endif
	567	#ifdef HAVE_STRING_H
	568	#include <string.h>
	569	#endif
	570	#ifdef HAVE_STDLIB_H
	571	#include <stdlib.h>
	572	#endif
	573	#ifdef HAVE_UNISTD_H
	574	#include <unistd.h>
	575	#endif
bf111c9f KR	576	"
bf111c9f KR	577	GAS_CHECK_DECL_NEEDED(malloc, f, char (f)(), $gas_test_headers)
5f757edc	578	GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
b11fb939 KR	579
	580	# Does errno.h declare errno, or do we have to add a separate declaration
	581	# for it?
bf111c9f	582	GAS_CHECK_DECL_NEEDED(errno, f, int f, [
b11fb939 KR	583	#ifdef HAVE_ERRNO_H
	584	#include <errno.h>
	585	#endif
bf111c9f	586	])
b11fb939	587
b11fb939	588	dnl This must come last.
28d3e4a3	589	AC_OUTPUT(Makefile doc/Makefile .gdbinit:gdbinit.in)