[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 Remember to use "dnl" in each line before the AC_INIT call...
dnl
dnl
AC_INIT(as.h)
dnl
bfd_gas=no
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

# 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_PROGRAM_TRANSFORM_NAME

emulation=generic

# assign cpu type

# check for architecture variants
case ${target_cpu} in
  hppa*)	cpu_type=hppa ;;
changequote(,)dnl
  i[45]86)	cpu_type=i386 ;;
  m680[012346]0) cpu_type=m68k ;;
  m68008)	cpu_type=m68k ;;
  m683??)       cpu_type=m68k ;;
changequote([,])dnl
  m8*)		cpu_type=m88k ;;
  mips*el)	cpu_type=mips endian=little;;
  mips*)	cpu_type=mips endian=big ;;
  powerpc*)	cpu_type=ppc ;;
  rs6000*)	cpu_type=ppc ;;
  sparc64)	cpu_type=sparc obj_format=elf AC_DEFINE(sparcv9) ;;
  sparclite*)   cpu_type=sparc ;;
  *)		cpu_type=${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=${cpu_type}
generic_target=${cpu_type}-${target_vendor}-${target_os}
dev=no

# assign object format
case ${generic_target} in
  a29k-amd-udi)		obj_format=coff gas_target=ebmon29k ;;
  a29k-amd-ebmon)	obj_format=coff gas_target=ebmon29k ;;

  alpha-*-netware*)	obj_format=ecoff ;;
  alpha-*-osf*)		obj_format=ecoff ;;

  arm-*-riscix*)	obj_format=aout bfd_gas=yes ;;

  hppa-*-*elf*)		obj_format=elf emulation=hppa ;;
  hppa-*-osf*)		obj_format=som emulation=hppa ;;
  hppa-*-hpux*)		obj_format=som emulation=hppa ;;
  hppa-*-bsd*)		obj_format=som emulation=hppa ;;
  hppa-*-hiux*)		obj_format=som emulation=hppa ;;

  h8300-*-coff)		obj_format=coff ;;

  i386-ibm-aix*)	obj_format=coff gas_target=i386coff
			 emulation=i386aix ;;
  i386-*-bsd*)		obj_format=aout emulation=386bsd ;;
  i386-*-netbsd0.8)	obj_format=aout emulation=386bsd ;;
  i386-*-netbsd*)	obj_format=aout emulation=netbsd ;;
  i386-*-linux*elf*)	obj_format=elf  emulation=linux ;;
  i386-*-linux*coff*)	obj_format=coff emulation=linux
			 gas_target=i386coff ;;
  i386-*-linux*)	obj_format=aout emulation=linux bfd_gas=preferred ;;
  i386-*-lynxos*)	obj_format=coff gas_target=i386coff
			 emulation=lynx ;;
  i386-*-sysv4* | i386-*-solaris* | i386-*-elf)
			obj_format=elf ;;
  i386-*-coff | i386-*-sysv* | i386-*-sco* | i386-*-isc*)
			obj_format=coff gas_target=i386coff ;;
  i386-*-vsta)		obj_format=aout ;;
  i386-*-go32)		obj_format=coff gas_target=i386coff ;;
  i386-*-mach* | i386-*-gnu*)
			obj_format=aout emulation=mach bfd_gas=yes ;;

  i960-*-bout)		obj_format=bout ;;
  i960-*-coff)		obj_format=coff emulation=ic960 gas_target=ic960coff ;;
  i960-*-nindy*)	obj_format=bout ;;
  i960-*-vxworks4*)	obj_format=bout ;;
  i960-*-vxworks5.0)	obj_format=bout ;;
  i960-*-vxworks5.*)	obj_format=coff emulation=ic960 gas_target=ic960coff ;;
  i960-*-vxworks*)	obj_format=bout ;;

  m68k-wrs-vxworks | m68k-ericsson-ose | m68k-*-sunos*)
			obj_format=aout emulation=sun3 ;;
  m68k-motorola-sysv)	obj_format=coff gas_target=m68kcoff emulation=delta ;;
  m68k-bull-sysv3*)	obj_format=coff gas_target=m68kcoff emulation=dpx2 ;;
  m68k-apollo-*)	obj_format=coff gas_target=apollo emulation=apollo ;;
  m68k-*-coff | m68k-*-sysv*)
			obj_format=coff gas_target=m68kcoff ;;
  m68k-*-hpux)		obj_format=hp300 emulation=hp300 ;;
  m68k-*-lynxos*)	obj_format=coff gas_target=m68kcoff
			 emulation=lynx ;;

  m88k-*-coff*)		obj_format=coff 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 
			case "$endian" in
			big) gas_target=mips-big ;;
			*)   gas_target=mips-lit ;;
			esac
			;;
  mips-*-ecoff*)	obj_format=ecoff gas_target=mips-big ;;
  mips-*-irix5*)	obj_format=elf gas_target=mips-big ;;
  mips-*-irix*)		obj_format=ecoff gas_target=mips-big ;;
  mips-*-riscos*)	obj_format=ecoff gas_target=mips-big ;;
  mips-*-sysv*)		obj_format=ecoff gas_target=mips-big ;;
  mips-*-elf*)		obj_format=elf 
			case "$endian" in
			big) gas_target=mips-big ;;
			*)   gas_target=mips-lit ;;
			esac
			;;
  ppc-*-aix*)		obj_format=coff bfd_gas=yes ;;
  ppc-*-elf*)		obj_format=elf bfd_gas=yes ;;
  ppc-*-netware*)	obj_format=elf emulation=ppcnw ;;
  ppc-*-sysv4*)		obj_format=elf bfd_gas=yes ;;

  sh-*-coff)		obj_format=coff ;;

  ns32k-pc532-mach*)	obj_format=aout emulation=pc532 bfd_gas=yes ;;
  ns32k-pc532-netbsd*)	obj_format=aout emulation=netbsd532 bfd_gas=yes ;;

  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 emulation=lynx ;;
  sparc*-fujitsu-none)	obj_format=aout bfd_gas=yes ;;
  sparc*-*-elf | sparc*-*-solaris*)
			obj_format=elf ;;

  vax-*-bsd* | vax-*-ultrix*)
			obj_format=aout ;;
  vax-*-vms)		obj_format=vms ;;

  z8k-*-coff | z8k-*-sim)
			obj_format=coff ;;

  *-*-aout | *-*-scout)
			obj_format=aout ;;
  *-*-nindy*)
			obj_format=bout ;;
  *-*-bsd*)
			obj_format=aout emulation=sun3 ;;
  *-*-generic)		obj_format=generic ;;
  *-*-xray | *-*-hms)	obj_format=coff ;;
  *-*-sim)		obj_format=coff ;;
  *-*-elf | *-*-sysv4* | *-*-solaris*)
			AC_MSG_WARN(GAS support for ELF format is incomplete)
			obj_format=elf dev=yes ;;
  *-*-vxworks)		obj_format=aout ;;
  *-*-netware)		obj_format=elf ;;
esac

# 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 ${srcdir}/config/tc-${cpu_type}.c; then
  AC_MSG_ERROR(GAS does not support target CPU ${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
AC_SUBST_FILE(target_frag)

case ${cpu_type}-${obj_format} in
# not yet
# i386-aout)	bfd_gas=preferred ;;
  *-elf)	bfd_gas=yes ;;
  *-ecoff)	bfd_gas=yes ;;
  *-som)	bfd_gas=yes ;;
  *)		;;
esac

case ${user_bfd_gas}-${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)
    bfd_gas=no
    ;;
  *-preferred)
    bfd_gas=yes
    ;;
  -*)
    # User specified nothing.
    ;;
esac

case ${bfd_gas}-${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

dnl Looks like the AC_MAKE_LINKS string is taken literally and put into the
dnl  config.status file.  So the necessary variables also have to be
dnl  exported.
AC_SUBST(cpu_type) AC_SUBST(obj_format) AC_SUBST(emulation) AC_SUBST(atof)
AC_LINK_FILES(targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c,
	config/tc-${cpu_type}.c	config/tc-${cpu_type}.h \
	config/obj-${obj_format}.h config/obj-${obj_format}.c \
	config/te-${emulation}.h config/atof-${atof}.c)

case "${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)

case "x${host}" in
  x${target})				;;
  *)		AC_DEFINE(CROSS_COMPILE);;
esac

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}")

case ${host} in
  rs6000-*-*)
	# The IBM compiler mis-compiles some expressions used in gas.
	# This will tell gas to work around this lossage.
	AC_DEFINE(IBM_COMPILER_SUX) ;;
  i386-*-go32)
	# Using fopen(..., "w") for a binary file breaks under DOS.
	AC_DEFINE(WANT_FOPEN_BIN)   ;;
esac

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)

dnl ansidecl.h will deal with const
dnl AC_CONST
AC_FUNC_ALLOCA
AC_C_INLINE

# 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!
AC_MSG_CHECKING([for working assert macro])
AC_CACHE_VAL(gas_cv_assert_ok,
AC_TRY_LINK([#include <assert.h>
#include <stdio.h>], [
/* check for requoting problems */
static int a, b, c, d;
static char *s;
assert (!strcmp(s, "foo bar baz quux"));
/* check for newline handling */
assert (a == b
        || c == d);
], gas_cv_assert_ok=yes, gas_cv_assert_ok=no))dnl
AC_MSG_RESULT($gas_cv_assert_ok)
test $gas_cv_assert_ok = yes || AC_DEFINE(BROKEN_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.
AC_MSG_CHECKING([whether a malloc declaration is required])
AC_CACHE_VAL(gas_cv_malloc_decl_needed,
AC_TRY_LINK([
#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
], [
char *(*f) ();
f = (char *(*)()) malloc;
], gas_cv_malloc_decl_needed=no, gas_cv_malloc_decl_needed=yes))dnl
AC_MSG_RESULT($gas_cv_malloc_decl_needed)
test $gas_cv_malloc_decl_needed = no || AC_DEFINE(NEED_MALLOC_DECLARATION)

AC_MSG_CHECKING([whether a free declaration is required])
AC_CACHE_VAL(gas_cv_free_decl_needed,
AC_TRY_LINK([
#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
], [
int (*f) ();
f = (int (*)()) free;
], gas_cv_free_decl_needed=no, gas_cv_free_decl_needed=yes))
AC_MSG_RESULT($gas_cv_free_decl_needed)
test $gas_cv_free_decl_needed = no || AC_DEFINE(NEED_FREE_DECLARATION)

# Does errno.h declare errno, or do we have to add a separate declaration
# for it?
AC_MSG_CHECKING([whether an errno declaration is required])
AC_CACHE_VAL(gas_cv_errno_decl_needed,
AC_TRY_LINK([
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
], [
int x;
x = errno;
], gas_cv_errno_decl_needed=no, gas_cv_errno_decl_needed=yes))
AC_MSG_RESULT($gas_cv_errno_decl_needed)
test $gas_cv_errno_decl_needed = no || AC_DEFINE(NEED_ERRNO_DECLARATION)

AC_CONFIG_SUBDIRS(testsuite)

dnl This must come last.
dnl Apparently symlinks are checked for in the directory containing
dnl  the last Makefile.  Thus the order used here...
AC_OUTPUT(doc/Makefile Makefile)
Commit	Line	Data
	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
	6	dnl Remember to use "dnl" in each line before the AC_INIT call...
	7	dnl
	8	dnl
	9	AC_INIT(as.h)
	10	dnl
	11	bfd_gas=no
	12	user_bfd_gas=
	13	AC_ARG_ENABLE(bfd-assembler,
	14	[ bfd-assembler use BFD back end for writing object files],
	15	[case "${enableval}" in
	16	yes) need_bfd=yes user_bfd_gas=yes ;;
	17	no) user_bfd_gas=no ;;
	18	*) AC_MSG_ERROR(bad value ${enableval} given for bfd-assembler option) ;;
	19	esac])dnl
	20
	21	# Generate a header file -- gets more post-processing by Makefile later.
	22	AC_CONFIG_HEADER(conf)
	23
	24	dnl For recursion to work right, this must be an absolute pathname.
	25	AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
	26	AC_CANONICAL_SYSTEM
	27	AC_PROGRAM_TRANSFORM_NAME
	28
	29	emulation=generic
	30
	31	# assign cpu type
	32
	33	# check for architecture variants
	34	case ${target_cpu} in
	35	hppa*) cpu_type=hppa ;;
	36	changequote(,)dnl
	37	i[45]86) cpu_type=i386 ;;
	38	m680[012346]0) cpu_type=m68k ;;
	39	m68008) cpu_type=m68k ;;
	40	m683??) cpu_type=m68k ;;
	41	changequote([,])dnl
	42	m8*) cpu_type=m88k ;;
	43	mips*el) cpu_type=mips endian=little;;
	44	mips*) cpu_type=mips endian=big ;;
	45	powerpc*) cpu_type=ppc ;;
	46	rs6000*) cpu_type=ppc ;;
	47	sparc64) cpu_type=sparc obj_format=elf AC_DEFINE(sparcv9) ;;
	48	sparclite*) cpu_type=sparc ;;
	49	*) cpu_type=${target_cpu} ;;
	50	esac
	51
	52	# do we need the opcodes library?
	53	case ${cpu_type} in
	54	alpha \| vax)
	55	;;
	56	*)
	57	OPCODES_LIB="../opcodes/libopcodes.a"
	58	;;
	59	esac
	60	AC_SUBST(OPCODES_LIB)
	61
	62	gas_target=${cpu_type}
	63	generic_target=${cpu_type}-${target_vendor}-${target_os}
	64	dev=no
	65
	66	# assign object format
	67	case ${generic_target} in
	68	a29k-amd-udi) obj_format=coff gas_target=ebmon29k ;;
	69	a29k-amd-ebmon) obj_format=coff gas_target=ebmon29k ;;
	70
	71	alpha--netware) obj_format=ecoff ;;
	72	alpha--osf) obj_format=ecoff ;;
	73
	74	arm--riscix) obj_format=aout bfd_gas=yes ;;
	75
	76	hppa--elf*) obj_format=elf emulation=hppa ;;
	77	hppa--osf) obj_format=som emulation=hppa ;;
	78	hppa--hpux) obj_format=som emulation=hppa ;;
	79	hppa--bsd) obj_format=som emulation=hppa ;;
	80	hppa--hiux) obj_format=som emulation=hppa ;;
	81
	82	h8300-*-coff) obj_format=coff ;;
	83
	84	i386-ibm-aix*) obj_format=coff gas_target=i386coff
	85	emulation=i386aix ;;
	86	i386--bsd) obj_format=aout emulation=386bsd ;;
	87	i386-*-netbsd0.8) obj_format=aout emulation=386bsd ;;
	88	i386--netbsd) obj_format=aout emulation=netbsd ;;
	89	i386--linuxelf*) obj_format=elf emulation=linux ;;
	90	i386--linuxcoff*) obj_format=coff emulation=linux
	91	gas_target=i386coff ;;
	92	i386--linux) obj_format=aout emulation=linux bfd_gas=preferred ;;
	93	i386--lynxos) obj_format=coff gas_target=i386coff
	94	emulation=lynx ;;
	95	i386--sysv4 \| i386--solaris \| i386-*-elf)
	96	obj_format=elf ;;
	97	i386--coff \| i386--sysv* \| i386--sco \| i386--isc)
	98	obj_format=coff gas_target=i386coff ;;
	99	i386-*-vsta) obj_format=aout ;;
	100	i386-*-go32) obj_format=coff gas_target=i386coff ;;
	101	i386--mach \| i386--gnu)
	102	obj_format=aout emulation=mach bfd_gas=yes ;;
	103
	104	i960-*-bout) obj_format=bout ;;
	105	i960-*-coff) obj_format=coff emulation=ic960 gas_target=ic960coff ;;
	106	i960--nindy) obj_format=bout ;;
	107	i960--vxworks4) obj_format=bout ;;
	108	i960-*-vxworks5.0) obj_format=bout ;;
	109	i960--vxworks5.) obj_format=coff emulation=ic960 gas_target=ic960coff ;;
	110	i960--vxworks) obj_format=bout ;;
	111
	112	m68k-wrs-vxworks \| m68k-ericsson-ose \| m68k--sunos)
	113	obj_format=aout emulation=sun3 ;;
	114	m68k-motorola-sysv) obj_format=coff gas_target=m68kcoff emulation=delta ;;
	115	m68k-bull-sysv3*) obj_format=coff gas_target=m68kcoff emulation=dpx2 ;;
	116	m68k-apollo-*) obj_format=coff gas_target=apollo emulation=apollo ;;
	117	m68k--coff \| m68k--sysv*)
	118	obj_format=coff gas_target=m68kcoff ;;
	119	m68k-*-hpux) obj_format=hp300 emulation=hp300 ;;
	120	m68k--lynxos) obj_format=coff gas_target=m68kcoff
	121	emulation=lynx ;;
	122
	123	m88k--coff) obj_format=coff gas_target=m88kcoff ;;
	124
	125	# don't change emulation like --bsd does
	126	mips--bsd) bfd_gas=yes obj_format=aout gas_target=mips-lit ;;
	127	mips--ultrix) obj_format=ecoff gas_target=mips-lit ;;
	128	mips--ecoff) obj_format=ecoff
	129	case "$endian" in
	130	big) gas_target=mips-big ;;
	131	*) gas_target=mips-lit ;;
	132	esac
	133	;;
	134	mips--ecoff) obj_format=ecoff gas_target=mips-big ;;
	135	mips--irix5) obj_format=elf gas_target=mips-big ;;
	136	mips--irix) obj_format=ecoff gas_target=mips-big ;;
	137	mips--riscos) obj_format=ecoff gas_target=mips-big ;;
	138	mips--sysv) obj_format=ecoff gas_target=mips-big ;;
	139	mips--elf) obj_format=elf
	140	case "$endian" in
	141	big) gas_target=mips-big ;;
	142	*) gas_target=mips-lit ;;
	143	esac
	144	;;
	145	ppc--aix) obj_format=coff bfd_gas=yes ;;
	146	ppc--elf) obj_format=elf bfd_gas=yes ;;
	147	ppc--netware) obj_format=elf emulation=ppcnw ;;
	148	ppc--sysv4) obj_format=elf bfd_gas=yes ;;
	149
	150	sh-*-coff) obj_format=coff ;;
	151
	152	ns32k-pc532-mach*) obj_format=aout emulation=pc532 bfd_gas=yes ;;
	153	ns32k-pc532-netbsd*) obj_format=aout emulation=netbsd532 bfd_gas=yes ;;
	154
	155	sparc--sunos4*) obj_format=aout emulation=sun3 bfd_gas=yes ;;
	156	sparc--aout \| sparc--vxworks)
	157	obj_format=aout bfd_gas=yes ;;
	158	sparc--coff) obj_format=coff bfd_gas=yes ;;
	159	sparc--lynxos*) obj_format=coff bfd_gas=yes emulation=lynx ;;
	160	sparc*-fujitsu-none) obj_format=aout bfd_gas=yes ;;
	161	sparc--elf \| sparc--solaris*)
	162	obj_format=elf ;;
	163
	164	vax--bsd \| vax--ultrix)
	165	obj_format=aout ;;
	166	vax-*-vms) obj_format=vms ;;
	167
	168	z8k--coff \| z8k--sim)
	169	obj_format=coff ;;
	170
	171	--aout \| --scout)
	172	obj_format=aout ;;
	173	--nindy*)
	174	obj_format=bout ;;
	175	--bsd*)
	176	obj_format=aout emulation=sun3 ;;
	177	--generic) obj_format=generic ;;
	178	--xray \| --hms) obj_format=coff ;;
	179	--sim) obj_format=coff ;;
	180	--elf \| --sysv4* \| --solaris*)
	181	AC_MSG_WARN(GAS support for ELF format is incomplete)
	182	obj_format=elf dev=yes ;;
	183	--vxworks) obj_format=aout ;;
	184	--netware) obj_format=elf ;;
	185	esac
	186
	187	# Assign floating point type. Most processors with FP support
	188	# IEEE FP. On those that don't support FP at all, usually IEEE
	189	# is emulated.
	190	case ${target_cpu} in
	191	vax \| tahoe ) atof=${target_cpu} ;;
	192	*) atof=ieee ;;
	193	esac
	194
	195	case "${obj_format}" in
	196	"") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
	197	esac
	198
	199	dnl
	200	dnl Make sure the desired support files exist.
	201	dnl
	202
	203	if test ! -r ${srcdir}/config/tc-${cpu_type}.c; then
	204	AC_MSG_ERROR(GAS does not support target CPU ${cpu_type})
	205	fi
	206
	207	if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
	208	AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
	209	fi
	210
	211	# and target makefile frag
	212
	213	target_frag=${srcdir}/config/${gas_target}.mt
	214	AC_SUBST_FILE(target_frag)
	215
	216	case ${cpu_type}-${obj_format} in
	217	# not yet
	218	# i386-aout) bfd_gas=preferred ;;
	219	*-elf) bfd_gas=yes ;;
	220	*-ecoff) bfd_gas=yes ;;
	221	*-som) bfd_gas=yes ;;
	222	*) ;;
	223	esac
	224
	225	case ${user_bfd_gas}-${bfd_gas} in
	226	yes-yes \| no-no)
	227	# We didn't override user's choice.
	228	;;
	229	no-yes)
	230	AC_MSG_WARN(Use of BFD is required for ${target}; overriding config options.)
	231	;;
	232	no-preferred)
	233	bfd_gas=no
	234	;;
	235	*-preferred)
	236	bfd_gas=yes
	237	;;
	238	-*)
	239	# User specified nothing.
	240	;;
	241	esac
	242
	243	case ${bfd_gas}-${cpu_type}-${obj_format} in
	244	yes-*-coff) need_bfd=yes ;;
	245	no-*-coff) need_bfd=yes
	246	AC_DEFINE(MANY_SEGMENTS) ;;
	247	esac
	248
	249	reject_dev_configs=yes
	250
	251	case ${reject_dev_configs}-${dev} in
	252	yes-yes) # Oops.
	253	AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
	254	;;
	255	esac
	256
	257	dnl Looks like the AC_MAKE_LINKS string is taken literally and put into the
	258	dnl config.status file. So the necessary variables also have to be
	259	dnl exported.
	260	AC_SUBST(cpu_type) AC_SUBST(obj_format) AC_SUBST(emulation) AC_SUBST(atof)
	261	AC_LINK_FILES(targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c,
	262	config/tc-${cpu_type}.c config/tc-${cpu_type}.h \
	263	config/obj-${obj_format}.h config/obj-${obj_format}.c \
	264	config/te-${emulation}.h config/atof-${atof}.c)
	265
	266	case "${bfd_gas}" in
	267	yes) AC_DEFINE(BFD_ASSEMBLER)
	268	need_bfd=yes ;;
	269	esac
	270
	271	case "${need_bfd}" in
	272	yes) BFDLIB=../bfd/libbfd.a
	273	ALL_OBJ_DEPS="$ALL_OBJ_DEPS ../bfd/bfd.h"
	274	;;
	275	esac
	276	AC_SUBST(BFDLIB)
	277	AC_SUBST(ALL_OBJ_DEPS)
	278
	279	case "x${host}" in
	280	x${target}) ;;
	281	*) AC_DEFINE(CROSS_COMPILE);;
	282	esac
	283
	284	AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}")
	285	AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}")
	286	AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}")
	287	AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}")
	288	AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}")
	289
	290	case ${host} in
	291	rs6000--)
	292	# The IBM compiler mis-compiles some expressions used in gas.
	293	# This will tell gas to work around this lossage.
	294	AC_DEFINE(IBM_COMPILER_SUX) ;;
	295	i386-*-go32)
	296	# Using fopen(..., "w") for a binary file breaks under DOS.
	297	AC_DEFINE(WANT_FOPEN_BIN) ;;
	298	esac
	299
	300	AC_PROG_CC
	301	AC_PROG_INSTALL
	302
	303	AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h)
	304
	305	dnl ansidecl.h will deal with const
	306	dnl AC_CONST
	307	AC_FUNC_ALLOCA
	308	AC_C_INLINE
	309
	310	# Some non-ANSI preprocessors botch requoting inside strings. That's bad
	311	# enough, but on some of those systems, the assert macro relies on requoting
	312	# working properly!
	313	AC_MSG_CHECKING([for working assert macro])
	314	AC_CACHE_VAL(gas_cv_assert_ok,
	315	AC_TRY_LINK([#include <assert.h>
	316	#include <stdio.h>], [
	317	/* check for requoting problems */
	318	static int a, b, c, d;
	319	static char *s;
	320	assert (!strcmp(s, "foo bar baz quux"));
	321	/* check for newline handling */
	322	assert (a == b
	323	\|\| c == d);
	324	], gas_cv_assert_ok=yes, gas_cv_assert_ok=no))dnl
	325	AC_MSG_RESULT($gas_cv_assert_ok)
	326	test $gas_cv_assert_ok = yes \|\| AC_DEFINE(BROKEN_ASSERT)
	327
	328	# On some systems, the system header files may not declare malloc, realloc,
	329	# and free. There are places where gas needs these functions to have been
	330	# declared -- such as when taking their addresses.
	331	AC_MSG_CHECKING([whether a malloc declaration is required])
	332	AC_CACHE_VAL(gas_cv_malloc_decl_needed,
	333	AC_TRY_LINK([
	334	#ifdef HAVE_MEMORY_H
	335	#include <memory.h>
	336	#endif
	337	#ifdef HAVE_STRING_H
	338	#include <string.h>
	339	#endif
	340	#ifdef HAVE_STDLIB_H
	341	#include <stdlib.h>
	342	#endif
	343	#ifdef HAVE_UNISTD_H
	344	#include <unistd.h>
	345	#endif
	346	], [
	347	char (f) ();
	348	f = (char ()()) malloc;
	349	], gas_cv_malloc_decl_needed=no, gas_cv_malloc_decl_needed=yes))dnl
	350	AC_MSG_RESULT($gas_cv_malloc_decl_needed)
	351	test $gas_cv_malloc_decl_needed = no \|\| AC_DEFINE(NEED_MALLOC_DECLARATION)
	352
	353	AC_MSG_CHECKING([whether a free declaration is required])
	354	AC_CACHE_VAL(gas_cv_free_decl_needed,
	355	AC_TRY_LINK([
	356	#ifdef HAVE_MEMORY_H
	357	#include <memory.h>
	358	#endif
	359	#ifdef HAVE_STRING_H
	360	#include <string.h>
	361	#endif
	362	#ifdef HAVE_STDLIB_H
	363	#include <stdlib.h>
	364	#endif
	365	#ifdef HAVE_UNISTD_H
	366	#include <unistd.h>
	367	#endif
	368	], [
	369	int (*f) ();
	370	f = (int (*)()) free;
	371	], gas_cv_free_decl_needed=no, gas_cv_free_decl_needed=yes))
	372	AC_MSG_RESULT($gas_cv_free_decl_needed)
	373	test $gas_cv_free_decl_needed = no \|\| AC_DEFINE(NEED_FREE_DECLARATION)
	374
	375	# Does errno.h declare errno, or do we have to add a separate declaration
	376	# for it?
	377	AC_MSG_CHECKING([whether an errno declaration is required])
	378	AC_CACHE_VAL(gas_cv_errno_decl_needed,
	379	AC_TRY_LINK([
	380	#ifdef HAVE_ERRNO_H
	381	#include <errno.h>
	382	#endif
	383	], [
	384	int x;
	385	x = errno;
	386	], gas_cv_errno_decl_needed=no, gas_cv_errno_decl_needed=yes))
	387	AC_MSG_RESULT($gas_cv_errno_decl_needed)
	388	test $gas_cv_errno_decl_needed = no \|\| AC_DEFINE(NEED_ERRNO_DECLARATION)
	389
	390	AC_CONFIG_SUBDIRS(testsuite)
	391
	392	dnl This must come last.
	393	dnl Apparently symlinks are checked for in the directory containing
	394	dnl the last Makefile. Thus the order used here...
	395	AC_OUTPUT(doc/Makefile Makefile)