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|
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
AC_ARG_ENABLE(bfd-assembler,
[ bfd-assembler use BFD back end for writing object files],
[case "${enableval}" in
yes) need_bfd=yes bfd_gas=yes ;;
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
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 ;;
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 ;;
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
changequote(<<<,>>>)dnl
if [ ! -r ${srcdir}/config/tc-${cpu_type}.c ]; then
AC_MSG_ERROR(GAS does not support target CPU ${cpu_type})
fi
if [ ! -r ${srcdir}/config/obj-${obj_format}.c ]; then
AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
fi
changequote([,])dnl
# and target makefile frag
target_frag=${srcdir}/config/${gas_target}.mt
AC_SUBST_FILE(target_frag)
case ${bfd_gas}-${obj_format} in
yes-coff) need_bfd=yes ;;
no-coff) need_bfd=yes
AC_DEFINE(MANY_SEGMENTS) ;;
*-elf) bfd_gas=yes ;;
*-ecoff) bfd_gas=yes ;;
*-som) bfd_gas=yes ;;
*) ;;
esac
case ${with_bfd_assembler}-${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
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${host_canon}" in
x${target_canon}) ;;
*) 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_HEADER_STDC
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_CHECKING([for working assert macro])
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);
], , 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_CHECKING([whether malloc declaration is required])
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;
], , AC_DEFINE(NEED_MALLOC_DECLARATION))
AC_CHECKING([free declaration required])
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;
], , AC_DEFINE(NEED_FREE_DECLARATION))
# Does errno.h declare errno, or do we have to add a separate declaration
# for it?
AC_CHECKING([errno declaration required])
AC_TRY_LINK([
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
], [
int x;
x = errno;
], , 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)
|