1 dnl Process this file with autoconf to produce a configure script.
3 dnl And be careful when changing it! If you must add tests with square
4 dnl brackets, be sure changequote invocations surround it.
6 dnl Copyright (C) 2012-2022 Free Software Foundation, Inc.
8 dnl This file is free software; you can redistribute it and/or modify
9 dnl it under the terms of the GNU General Public License as published by
10 dnl the Free Software Foundation; either version 3 of the License, or
11 dnl (at your option) any later version.
13 dnl This program is distributed in the hope that it will be useful,
14 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
15 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 dnl GNU General Public License for more details.
18 dnl You should have received a copy of the GNU General Public License
19 dnl along with this program; see the file COPYING3. If not see
20 dnl <http://www.gnu.org/licenses/>.
22 dnl v2.5 needed for --bindir et al
23 m4_include([../bfd/version.m4])
24 AC_INIT([gas], BFD_VERSION)
25 AC_CONFIG_SRCDIR(as.h)
27 dnl Autoconf 2.57 will find the aux dir without this. However, unless
28 dnl we specify this explicitly, automake-1.7 will assume that ylwrap is in
29 dnl gas/ instead of gas/../.
34 AM_SILENT_RULES([yes])
38 AC_USE_SYSTEM_EXTENSIONS
42 ACX_PROG_CMP_IGNORE_INITIAL
44 AC_ARG_ENABLE(targets,
45 [ --enable-targets alternative target configurations besides the primary],
46 [case "${enableval}" in
47 yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all')
49 no) enable_targets= ;;
50 *) enable_targets=$enableval ;;
54 . ${srcdir}/../bfd/development.sh
55 test "$development" = true && ac_checking=yes
56 AC_ARG_ENABLE(checking,
57 [ --enable-checking enable run-time checks],
58 [case "${enableval}" in
59 no|none) ac_checking= ;;
62 if test x$ac_checking != x ; then
63 AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
67 # Decide the default method for compressing debug sections.
68 ac_default_compressed_debug_sections=unset
69 # Provide a configure time option to override our default.
70 AC_ARG_ENABLE(compressed_debug_sections,
71 AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,none}],
72 [compress debug sections by default]),
73 [case ,"${enableval}", in
74 ,yes, | ,all, | *,gas,*) ac_default_compressed_debug_sections=yes ;;
75 ,no, | ,none,) ac_default_compressed_debug_sections=no ;;
76 *) ac_default_compressed_debug_sections=unset ;;
80 # Decide if x86 assembler should generate relax relocations.
81 ac_default_x86_relax_relocations=unset
82 # Provide a configure time option to override our default.
83 AC_ARG_ENABLE(x86_relax_relocations,
84 AS_HELP_STRING([--enable-x86-relax-relocations],
85 [generate x86 relax relocations by default]),
86 [case "${enableval}" in
87 no) ac_default_x86_relax_relocations=0 ;;
90 # Decide if ELF assembler should generate common symbols with the
92 ac_default_elf_stt_common=unset
93 # Provide a configure time option to override our default.
94 AC_ARG_ENABLE(elf_stt_common,
95 AS_HELP_STRING([--enable-elf-stt-common],
96 [generate ELF common symbols with STT_COMMON type by default]),
97 [case "${enableval}" in
98 yes) ac_default_elf_stt_common=1 ;;
102 # Decide if the ELF assembler should default to generating
103 # GNU Build notes if none are provided by the input.
104 ac_default_generate_build_notes=0
105 # Provide a configuration option to override the default.
106 AC_ARG_ENABLE(generate_build_notes,
107 AS_HELP_STRING([--enable-generate-build-notes],
108 [generate GNU Build notes if none are provided by the input]),
109 [case "${enableval}" in
110 yes) ac_default_generate_build_notes=1 ;;
111 no) ac_default_generate_build_notes=0 ;;
114 # Decide if the MIPS assembler should default to enable MIPS fix Loongson3
116 ac_default_mips_fix_loongson3_llsc=unset
117 # Provide a configuration option to override the default.
118 AC_ARG_ENABLE(mips-fix-loongson3-llsc,
119 AS_HELP_STRING([--enable-mips-fix-loongson3-llsc],
120 [enable MIPS fix Loongson3 LLSC errata]),
121 [case "${enableval}" in
122 yes) ac_default_mips_fix_loongson3_llsc=1 ;;
123 no) ac_default_mips_fix_loongson3_llsc=0 ;;
126 # Decide if the x86 ELF assembler should default to generating GNU x86
127 # used ISA and feature properties.
128 ac_default_generate_x86_used_note=unset
129 # Provide a configuration option to override the default.
130 AC_ARG_ENABLE(x86-used-note,
131 AS_HELP_STRING([--enable-x86-used-note],
132 [generate GNU x86 used ISA and feature properties]),
133 [case "${enableval}" in
134 yes) ac_default_generate_x86_used_note=1 ;;
135 no) ac_default_generate_x86_used_note=0 ;;
138 # Decide if the RISC-V ELF assembler should default to generating attribute.
139 ac_default_generate_riscv_attr=unset
140 # Provide a configuration option to override the default.
141 AC_ARG_ENABLE(default-riscv-attribute,
142 AS_HELP_STRING([--enable-default-riscv-attribute],
143 [generate RISC-V arch attribute by default]),
144 [case "${enableval}" in
145 yes) ac_default_generate_riscv_attr=1 ;;
146 no) ac_default_generate_riscv_attr=0 ;;
153 # Generate a header file
154 AC_CONFIG_HEADERS(config.h:config.in)
156 dnl Option --with-cpu=TYPE allows configure type control of the default
157 dnl cpu type within the assembler. Currently only the ARC target
158 dnl supports this feature, but others may be added in the future.
160 AS_HELP_STRING([--with-cpu=CPU],
161 [default cpu variant is CPU (currently only supported on ARC)]),
162 [AC_DEFINE_UNQUOTED(TARGET_WITH_CPU,
164 [Target specific CPU.])],
168 AH_VERBATIM([00_CONFIG_H_CHECK],
169 [/* Check that config.h is #included before system headers
170 (this works only for glibc, but that should be enough). */
171 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
172 # error config.h must be #included before system headers
174 #define __CONFIG_H__ 1])
176 # If we are on a DOS filesystem, we must use gdb.ini rather than
179 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
181 AC_CONFIG_FILES(gdb.ini:gdbinit.in)
185 AC_CONFIG_FILES(.gdbinit:gdbinit.in)
190 #We need this for the host.
195 # Makefile target for installing gas in $(tooldir)/bin.
196 install_tooldir=install-exec-tooldir
200 if test -n "$enable_targets" ; then
201 for t in `echo $enable_targets | sed 's/,/ /g'`; do
202 if test $t = "all"; then
206 result=`$ac_config_sub $t 2>/dev/null`
207 if test -n "$result" ; then
208 canon_targets="$canon_targets $result"
210 # # Permit "all", etc. We don't support it yet though.
211 # canon_targets="$canon_targets $t"
214 GAS_UNIQ(canon_targets)
219 for this_target in $target $canon_targets ; do
222 . ${srcdir}/configure.tgt
224 case ${target_cpu} in
226 AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
227 [Default CRIS architecture.])
231 if test ${this_target} = $target ; then
232 target_cpu_type=${cpu_type}
233 elif test ${target_cpu_type} != ${cpu_type} ; then
237 generic_target=${cpu_type}-${target_vendor}-${target_os}
238 case ${generic_target} in
242 AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
245 i386-*-linux-* | x86_64-*-linux-*)
246 if test ${this_target} = $target \
247 && test ${ac_default_generate_x86_used_note} = unset; then
248 ac_default_generate_x86_used_note=1
253 | x86_64-*-solaris2 \
254 | i386-*-solaris2.[[0-9]] \
255 | i386-*-solaris2.1[[01]] \
256 | x86_64-*-solaris2.1[[01]])
257 if test ${this_target} = $target \
258 && test ${ac_default_x86_relax_relocations} = unset; then
259 ac_default_x86_relax_relocations=0
269 AC_DEFINE(AIX_WEAK_SUPPORT, 1,
270 [Define if using AIX 5.2 value for C_WEAKEXT.])
273 if test ${this_target} = $target; then
274 AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
275 [Define if default target is PowerPC Solaris.])
277 if test x${endian} = xbig; then
278 AC_MSG_ERROR(Solaris must be configured little endian)
283 if test ${this_target} = $target ; then
285 if test x${endian} = xbig; then
287 elif test x${endian} = xlittle; then
290 if test x${endian_def} != x; then
291 AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
292 [Define as 1 if big endian.])
296 # Other random stuff.
300 # Set mips_cpu to the name of the default CPU.
301 case ${target_cpu} in
302 mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
305 mipsisa32 | mipsisa32el)
308 mipsisa32r2 | mipsisa32r2el)
311 mipsisa32r3 | mipsisa32r3el)
314 mipsisa32r5 | mipsisa32r5el)
317 mipsisa32r6 | mipsisa32r6el)
320 mipsisa64 | mipsisa64el)
323 mipsisa64r2 | mipsisa64r2el)
326 mipsisa64r3 | mipsisa64r3el)
329 mipsisa64r5 | mipsisa64r5el)
332 mipsisa64r6 | mipsisa64r6el)
335 mipstx39 | mipstx39el)
338 mips64vr | mips64vrel)
341 mipsisa32r2* | mipsisa64r2*)
343 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
346 mipsisa32r6* | mipsisa64r6*)
348 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
351 mips64* | mipsisa64* | mipsisa32*)
353 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
358 mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
362 AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
365 # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
366 # binaries. It's a GNU extension that some OSes don't understand.
375 # Decide whether to generate 32-bit or 64-bit code by default.
376 # Used to resolve -march=from-abi when an embedded ABI is selected.
378 mips64*-*-* | mipsisa64*-*-*)
385 # Decide which ABI to target by default.
387 mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
388 | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
389 mips_default_abi=N32_ABI
391 mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
392 mips_default_abi=O32_ABI
395 mips_default_abi=N64_ABI
398 mips_default_abi=NO_ABI
401 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
402 [Default CPU for MIPS targets. ])
403 AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
404 [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
405 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
406 [Generate 64-bit code by default on MIPS targets. ])
407 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
408 [Choose a default ABI for MIPS targets. ])
412 # Do we need the opcodes library?
420 case "${enable_shared}" in
421 yes) shared_opcodes=true ;;
422 *opcodes*) shared_opcodes=true ;;
423 *) shared_opcodes=false ;;
428 # Any other special object files needed ?
432 for f in config/bfin-parse.o config/bfin-lex-wrapper.o; do
433 case " $extra_objects " in
435 *) extra_objects="$extra_objects $f" ;;
441 if test $this_target = $target ; then
442 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
446 epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
451 for f in config/loongarch-parse.o config/loongarch-lex-wrapper.o; do
452 case " $extra_objects " in
454 *) extra_objects="$extra_objects $f" ;;
457 # --target=loongarch[32|64]-*-*. */
458 if test $this_target = $target ; then
459 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
470 f=config/m68k-parse.o
471 case " $extra_objects " in
473 *) extra_objects="$extra_objects $f" ;;
482 for f in itbl-parse.o itbl-lex-wrapper.o itbl-ops.o; do
483 case " $extra_objects " in
485 *) extra_objects="$extra_objects $f" ;;
495 # setup NDS32_LINUX_TOOLCHAIN definition
496 if test "linux" = $em; then
497 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 1,
498 [Define value for nds32_linux_toolchain])
500 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 0,
501 [Define default value for nds32_linux_toolchain])
504 # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
505 # based on arch_name.
506 AC_MSG_CHECKING(for default configuration of --with-arch)
507 if test "x${with_arch}" != x; then
509 v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
510 AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
511 [Define value for nds32_arch_name])
514 AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
518 AC_MSG_RESULT($with_arch)
520 # Decide features one by one.
521 AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
522 if test "x${enable_dx_regs}" = xyes; then
523 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
524 [Define value for nds32_dx_regs])
526 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
527 [Define default value for nds32_dx_regs])
529 AC_MSG_RESULT($enable_dx_regs)
531 AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
532 if test "x${enable_perf_ext}" = xno; then
533 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
534 [Define value for nds32_perf_ext])
536 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
537 [Define default value for nds32_perf_ext])
539 AC_MSG_RESULT($enable_perf_ext)
541 AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
542 if test "x${enable_perf_ext2}" = xno; then
543 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
544 [Define value for nds32_perf_ext2])
546 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
547 [Define default value for nds32_perf_ext2])
549 AC_MSG_RESULT($enable_perf_ext2)
551 AC_MSG_CHECKING(for default configuration of --enable-string-ext)
552 if test "x${enable_string_ext}" = xno; then
553 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
554 [Define value for nds32_string_ext])
556 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
557 [Define default value for nds32_string_ext])
559 AC_MSG_RESULT($enable_string_ext)
561 AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
562 if test "x${enable_audio_ext}" = xno; then
563 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
564 [Define value for nds32_audio_ext])
566 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
567 [Define default value for nds32_audio_ext])
569 AC_MSG_RESULT($enable_audio_ext)
571 AC_MSG_CHECKING(for default configuration of --enable-dsp-ext)
572 if test "x${enable_dsp_ext}" = xno; then
573 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 0,
574 [Define value for nds32_dsp_ext])
576 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 1,
577 [Define default value for nds32_dsp_ext])
579 AC_MSG_RESULT($enable_dsp_ext)
581 AC_MSG_CHECKING(for default configuration of --enable-zol-ext)
582 if test "x${enable_zol_ext}" = xno; then
583 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 0,
584 [Define value for nds32_zol_ext])
586 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 1,
587 [Define default value for nds32_zol_ext])
589 AC_MSG_RESULT($enable_zol_ext)
592 aarch64 | i386 | s390 | sparc)
593 if test $this_target = $target ; then
594 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
599 # --target=riscv[32|64]-*-*. */
600 if test $this_target = $target ; then
601 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
604 # --with-arch=<value>. The syntax of <value> is same as Gas option -march.
605 AC_MSG_CHECKING(for default configuration of --with-arch)
606 if test "x${with_arch}" != x; then
607 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ARCH_WITH_EXT, "$with_arch",
608 [Define default value for RISC-V -march.])
610 AC_MSG_RESULT($with_arch)
612 # --with-isa-spec=[2.2|20190608|20191213].
613 AC_MSG_CHECKING(for default configuration of --with-isa-spec)
614 if test "x${with_isa_spec}" != x; then
615 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ISA_SPEC, "$with_isa_spec",
616 [Define default value for RISC-V -misa-spec.])
618 AC_MSG_RESULT($with_isa_spec)
620 # --with-priv-spec=[1.9.1|1.10|1.11|1.12].
621 AC_MSG_CHECKING(for default configuration of --with-priv-spec)
622 if test "x${with_priv_spec}" != x; then
623 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_PRIV_SPEC, "$with_priv_spec",
624 [Define default value for RISC-V -mpriv-spec])
626 AC_MSG_RESULT($with_priv_spec)
630 f=config/rl78-parse.o
631 case " $extra_objects " in
633 *) extra_objects="$extra_objects $f" ;;
639 case " $extra_objects " in
641 *) extra_objects="$extra_objects $f" ;;
650 f=config/xtensa-relax.o
651 case " $extra_objects " in
653 *) extra_objects="$extra_objects $f" ;;
661 if test $using_cgen = yes ; then
663 case " $extra_objects " in
665 *) extra_objects="$extra_objects $f" ;;
669 # See if we really can support this configuration with the emulation code.
671 if test $this_target = $target ; then
679 case " $extra_objects " in
681 *) extra_objects="$extra_objects $f" ;;
685 # From target name and format, produce a list of supported emulations.
687 case ${generic_target}-${fmt} in
688 mips-*-*-*) case "$endian" in
689 big) emulation="mipsbelf mipslelf mipself" ;;
690 *) emulation="mipslelf mipsbelf mipself" ;;
692 # i386-pc-pe-coff != i386-pc-coff.
694 # Uncommenting the next line will turn on support for i386 AOUT
695 # for the default linux configuration
696 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
698 i386-*-aout) emulation="i386aout" ;;
699 i386-*-coff) emulation="i386coff" ;;
700 i386-*-elf) emulation="i386elf" ;;
702 # Always all formats. The first stated emulation becomes the default.
703 cris-*-*aout*) emulation="crisaout criself" ;;
704 cris-*-*) emulation="criself crisaout" ;;
707 emulations="$emulations $emulation"
711 if test ${ac_default_x86_relax_relocations} = unset; then
712 ac_default_x86_relax_relocations=1
714 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
715 $ac_default_x86_relax_relocations,
716 [Define to 1 if you want to generate x86 relax relocations by default.])
718 if test ${ac_default_elf_stt_common} = unset; then
719 ac_default_elf_stt_common=0
721 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
722 $ac_default_elf_stt_common,
723 [Define to 1 if you want to generate ELF common symbols with the
724 STT_COMMON type by default.])
726 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_BUILD_NOTES,
727 $ac_default_generate_build_notes,
728 [Define to 1 if you want to generate GNU Build attribute notes
729 by default, if none are contained in the input.])
731 if test ${ac_default_generate_x86_used_note} = unset; then
732 ac_default_generate_x86_used_note=0
734 AC_DEFINE_UNQUOTED(DEFAULT_X86_USED_NOTE,
735 $ac_default_generate_x86_used_note,
736 [Define to 1 if you want to generate GNU x86 used ISA and feature
737 properties by default.])
739 if test ${ac_default_generate_riscv_attr} = unset; then
740 ac_default_generate_riscv_attr=1
743 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ATTR,
744 $ac_default_generate_riscv_attr,
745 [Define to 1 if you want to generate RISC-V arch attribute by default.])
747 if test ${ac_default_mips_fix_loongson3_llsc} = unset; then
748 ac_default_mips_fix_loongson3_llsc=0
750 AC_DEFINE_UNQUOTED(DEFAULT_MIPS_FIX_LOONGSON3_LLSC,
751 $ac_default_mips_fix_loongson3_llsc,
752 [Define to 1 if you want to fix Loongson3 LLSC Errata by default.])
754 if test x$ac_default_compressed_debug_sections = xyes ; then
755 AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
758 # Turn on all targets if possible
759 if test ${all_targets} = "yes"; then
760 case ${target_cpu_type} in
762 case ${obj_format} in
764 emulations="$emulations i386coff i386elf"
767 emulations="$emulations i386aout i386elf"
770 emulations="$emulations i386aout i386coff"
775 case ${obj_format} in
777 emulations="$emulations i386coff i386elf"
780 emulations="$emulations i386aout i386elf"
783 emulations="$emulations i386aout i386coff"
790 # PE code has way too many macros tweaking behaviour
792 pe*) emulations="" ;;
795 # Assign floating point type. Most processors with FP support
796 # IEEE FP. On those that don't support FP at all, usually IEEE
798 case ${target_cpu} in
799 vax | pdp11 ) atof=vax ;;
803 case "${obj_format}" in
804 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
807 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
809 if test $using_cgen = yes ; then
810 case ${target_cpu} in
812 cgen_cpu_prefix=or1k ;;
813 *) cgen_cpu_prefix=${target_cpu} ;;
815 AC_SUBST(cgen_cpu_prefix)
816 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
820 dnl Make sure the desired support files exist.
823 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
824 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
827 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
828 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
831 # Some COFF configurations want these random other flags set.
832 case ${obj_format} in
834 case ${target_cpu_type} in
835 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
836 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
841 # Getting this done right is going to be a bitch. Each configuration specified
842 # with --enable-targets=... should be checked for environment, format, cpu
845 # For each configuration, the necessary object file support code must be linked
846 # in. This might be only one, it might be up to four. The necessary emulation
847 # code needs to be provided, too.
849 # And then there's "--enable-targets=all"....
851 # For now, just always do it for MIPS ELF configurations. Sigh.
853 formats="${obj_format}"
857 for em in . $emulations ; do
860 mipsbelf | mipslelf | mipself)
861 fmt=elf file=mipself ;;
869 formats="$formats $fmt"
870 emfiles="$emfiles config/e-$file.o"
871 EMULATIONS="$EMULATIONS &$em,"
875 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
876 for fmt in $formats ; do
878 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
879 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
880 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
881 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
882 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
883 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
885 extra_objects="$extra_objects config/obj-$fmt.o"
889 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
890 DEFAULT_EMULATION=`set . $emulations ; echo $2`
891 # e-mipself has more than one emulation per file, e-i386* has just one at the
892 # moment. If only one emulation is specified, then don't define
893 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
894 case "${obj_format}${emfiles}" in
896 extra_objects="$extra_objects $emfiles"
897 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
900 AC_SUBST(extra_objects)
901 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
902 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
903 [Default emulation.])
905 reject_dev_configs=yes
907 case ${reject_dev_configs}-${dev} in
909 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
913 AC_SUBST(target_cpu_type)
916 AC_SUBST(install_tooldir)
918 dnl AC_SUBST(emulation)
920 # do we need the opcodes library?
921 case "${need_opcodes}" in
923 OPCODES_LIB=../opcodes/libopcodes.la
927 AC_SUBST(OPCODES_LIB)
929 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
930 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
931 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
932 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
933 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
938 ALL_LINGUAS="es fi fr id ja ru rw sv tr uk zh_CN"
939 ZW_GNU_GETTEXT_SISTER_DIR
943 AM_CONDITIONAL(GENINSRC_NEVER, false)
946 AC_CHECK_HEADERS(memory.h sys/stat.h sys/types.h unistd.h)
948 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
949 # people who are not cross-compiling but are compiling cross-assemblers.
950 AC_MSG_CHECKING(whether compiling a cross-assembler)
951 if test "${host}" = "${target}"; then
955 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
957 AC_MSG_RESULT($cross_gas)
959 AC_CHECK_FUNCS(strsignal)
963 # do we need the math library?
964 case "${need_libm}" in
971 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
972 # enough, but on some of those systems, the assert macro relies on requoting
976 # On some systems, the system header files may not declare malloc, realloc,
977 # and free. There are places where gas needs these functions to have been
978 # declared -- such as when taking their addresses.
990 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
991 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
992 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
993 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
994 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
995 if test $gas_cv_decl_getopt_unistd_h = yes; then
996 AC_DEFINE([HAVE_DECL_GETOPT], 1,
997 [Is the prototype for getopt in <unistd.h> in the expected format?])
1000 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
1001 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
1003 AC_CHECK_DECLS([asprintf, mempcpy, stpcpy])
1007 # Link in zlib if we can. This allows us to write compressed debug sections.
1010 # Support for VMS timestamps via cross compile
1012 if test "$ac_cv_header_time_h" = yes; then
1013 GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
1016 if test "$ac_cv_header_sys_stat_h" = yes; then
1017 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
1018 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
1022 dnl Required for html, pdf, install-pdf and install-html targets.
1023 AC_SUBST(datarootdir)
1028 dnl This must come last.
1030 dnl We used to make symlinks to files in the source directory, but now
1031 dnl we just use the right name for .c files, and create .h files in
1032 dnl the build directory which include the right .h file. Make sure
1033 dnl the old symlinks don't exist, so that a reconfigure in an existing
1034 dnl directory behaves reasonably.
1036 AC_CONFIG_FILES(Makefile po/Makefile.in:po/Make-in)
1037 AC_CONFIG_COMMANDS([default],
1038 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
1039 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
1040 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
1041 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
1042 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
1043 if test "x$cgen_cpu_prefix" != x ; then
1044 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
1046 [target_cpu_type=${target_cpu_type}
1047 cgen_cpu_prefix=${cgen_cpu_prefix}
1048 obj_format=${obj_format}
1049 te_file=${te_file}])