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) 2012-2024 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 ,"${enableval}", in
74 ,yes, | ,all, | *,gas,*) ac_default_compressed_debug_sections=yes ;;
75 ,no, | ,none,) ac_default_compressed_debug_sections=no ;;
76 *) ac_default_compressed_debug_sections=unset ;;
79 # Select default compression algorithm.
80 ac_default_compressed_debug_sections_algorithm=COMPRESS_DEBUG_GABI_ZLIB
81 AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
82 AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
83 [Default compression algorithm for --enable-compressed-debug-sections.]),
84 [case "${enableval}" in
85 zstd) ac_default_compressed_debug_sections_algorithm=COMPRESS_DEBUG_ZSTD ;;
89 # Decide if x86 assembler should generate relax relocations.
90 ac_default_x86_relax_relocations=unset
91 # Provide a configure time option to override our default.
92 AC_ARG_ENABLE(x86_relax_relocations,
93 AS_HELP_STRING([--enable-x86-relax-relocations],
94 [generate x86 relax relocations by default]),
95 [case "${enableval}" in
96 no) ac_default_x86_relax_relocations=0 ;;
99 # Decide if ELF assembler should generate common symbols with the
101 ac_default_elf_stt_common=unset
102 # Provide a configure time option to override our default.
103 AC_ARG_ENABLE(elf_stt_common,
104 AS_HELP_STRING([--enable-elf-stt-common],
105 [generate ELF common symbols with STT_COMMON type by default]),
106 [case "${enableval}" in
107 yes) ac_default_elf_stt_common=1 ;;
111 # Decide if the ELF assembler should default to generating
112 # GNU Build notes if none are provided by the input.
113 ac_default_generate_build_notes=0
114 # Provide a configuration option to override the default.
115 AC_ARG_ENABLE(generate_build_notes,
116 AS_HELP_STRING([--enable-generate-build-notes],
117 [generate GNU Build notes if none are provided by the input]),
118 [case "${enableval}" in
119 yes) ac_default_generate_build_notes=1 ;;
120 no) ac_default_generate_build_notes=0 ;;
123 # Decide if the MIPS assembler should default to enable MIPS fix Loongson3
125 ac_default_mips_fix_loongson3_llsc=unset
126 # Provide a configuration option to override the default.
127 AC_ARG_ENABLE(mips-fix-loongson3-llsc,
128 AS_HELP_STRING([--enable-mips-fix-loongson3-llsc],
129 [enable MIPS fix Loongson3 LLSC errata]),
130 [case "${enableval}" in
131 yes) ac_default_mips_fix_loongson3_llsc=1 ;;
132 no) ac_default_mips_fix_loongson3_llsc=0 ;;
135 # Decide if the x86 ELF assembler should default to generating GNU x86
136 # used ISA and feature properties.
137 ac_default_generate_x86_used_note=unset
138 # Provide a configuration option to override the default.
139 AC_ARG_ENABLE(x86-used-note,
140 AS_HELP_STRING([--enable-x86-used-note],
141 [generate GNU x86 used ISA and feature properties]),
142 [case "${enableval}" in
143 yes) ac_default_generate_x86_used_note=1 ;;
144 no) ac_default_generate_x86_used_note=0 ;;
147 # Decide if the RISC-V ELF assembler should default to generating attribute.
148 ac_default_generate_riscv_attr=unset
149 # Provide a configuration option to override the default.
150 AC_ARG_ENABLE(default-riscv-attribute,
151 AS_HELP_STRING([--enable-default-riscv-attribute],
152 [generate RISC-V arch attribute by default]),
153 [case "${enableval}" in
154 yes) ac_default_generate_riscv_attr=1 ;;
155 no) ac_default_generate_riscv_attr=0 ;;
162 # Generate a header file
163 AC_CONFIG_HEADERS(config.h:config.in)
165 dnl Option --with-cpu=TYPE allows configure type control of the default
166 dnl cpu type within the assembler. Currently only the ARC target
167 dnl supports this feature, but others may be added in the future.
169 AS_HELP_STRING([--with-cpu=CPU],
170 [default cpu variant is CPU (currently only supported on ARC)]),
171 [AC_DEFINE_UNQUOTED(TARGET_WITH_CPU,
173 [Target specific CPU.])],
177 AH_VERBATIM([00_CONFIG_H_CHECK],
178 [/* Check that config.h is #included before system headers
179 (this works only for glibc, but that should be enough). */
180 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
181 # error config.h must be #included before system headers
183 #define __CONFIG_H__ 1])
185 # If we are on a DOS filesystem, we must use gdb.ini rather than
188 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
190 AC_CONFIG_FILES(gdb.ini:gdbinit.in)
194 AC_CONFIG_FILES(.gdbinit:gdbinit.in)
199 #We need this for the host.
204 # Makefile target for installing gas in $(tooldir)/bin.
205 install_tooldir=install-exec-tooldir
209 if test -n "$enable_targets" ; then
210 for t in `echo $enable_targets | sed 's/,/ /g'`; do
211 if test $t = "all"; then
215 result=`$ac_config_sub $t 2>/dev/null`
216 if test -n "$result" ; then
217 canon_targets="$canon_targets $result"
219 # # Permit "all", etc. We don't support it yet though.
220 # canon_targets="$canon_targets $t"
223 GAS_UNIQ(canon_targets)
228 for this_target in $target $canon_targets ; do
231 . ${srcdir}/configure.tgt
233 case ${target_cpu} in
235 AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
236 [Default CRIS architecture.])
240 if test ${this_target} = $target ; then
241 target_cpu_type=${cpu_type}
242 elif test ${target_cpu_type} != ${cpu_type} ; then
246 generic_target=${cpu_type}-${target_vendor}-${target_os}
247 case ${generic_target} in
250 AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
253 i386-*-linux-* | x86_64-*-linux-*)
254 if test ${this_target} = $target \
255 && test ${ac_default_generate_x86_used_note} = unset; then
256 ac_default_generate_x86_used_note=1
261 | x86_64-*-solaris2 \
262 | i386-*-solaris2.[[0-9]] \
263 | i386-*-solaris2.1[[01]] \
264 | x86_64-*-solaris2.1[[01]])
265 if test ${this_target} = $target \
266 && test ${ac_default_x86_relax_relocations} = unset; then
267 ac_default_x86_relax_relocations=0
279 AC_DEFINE(AIX_WEAK_SUPPORT, 1,
280 [Define if using AIX 5.2 value for C_WEAKEXT.])
283 if test ${this_target} = $target; then
284 AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
285 [Define if default target is PowerPC Solaris.])
287 if test x${endian} = xbig; then
288 AC_MSG_ERROR(Solaris must be configured little endian)
293 if test ${this_target} = $target ; then
295 if test x${endian} = xbig; then
297 elif test x${endian} = xlittle; then
300 if test x${endian_def} != x; then
301 AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
302 [Define as 1 if big endian.])
306 # Other random stuff.
310 # Set mips_cpu to the name of the default CPU.
311 case ${target_cpu} in
312 mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
315 mipsisa32 | mipsisa32el)
318 mipsisa32r2 | mipsisa32r2el)
321 mipsisa32r3 | mipsisa32r3el)
324 mipsisa32r5 | mipsisa32r5el)
327 mipsisa32r6 | mipsisa32r6el)
330 mipsisa64 | mipsisa64el)
333 mipsisa64r2 | mipsisa64r2el)
336 mipsisa64r3 | mipsisa64r3el)
339 mipsisa64r5 | mipsisa64r5el)
342 mipsisa64r6 | mipsisa64r6el)
345 mipstx39 | mipstx39el)
348 mips64vr | mips64vrel)
351 mipsisa32r2* | mipsisa64r2*)
353 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
356 mipsisa32r6* | mipsisa64r6*)
358 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
361 mips64* | mipsisa64* | mipsisa32*)
363 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
368 mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
372 AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
375 # See whether it's appropriate to set EF_MIPS_ABI_O32 for o32
376 # binaries. It's a GNU extension that some OSes don't understand.
379 use_ef_mips_abi_o32=0
382 use_ef_mips_abi_o32=1
385 # If Vendor is IMG, then MIPSr6 is used
391 # Decide whether to generate 32-bit or 64-bit code by default.
392 # Used to resolve -march=from-abi when an embedded ABI is selected.
394 mips64*-*-* | mipsisa64*-*-*)
401 # Decide which ABI to target by default.
403 mips64*-openbsd* | mips64*-linux-gnuabi64)
404 mips_default_abi=N64_ABI
406 mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
407 | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
408 mips_default_abi=N32_ABI
410 mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
411 mips_default_abi=O32_ABI
414 mips_default_abi=NO_ABI
417 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
418 [Default CPU for MIPS targets. ])
419 AC_DEFINE_UNQUOTED(USE_EF_MIPS_ABI_O32, $use_ef_mips_abi_o32,
420 [Allow use of EF_MIPS_ABI_O32 on MIPS targets. ])
421 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
422 [Generate 64-bit code by default on MIPS targets. ])
423 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
424 [Choose a default ABI for MIPS targets. ])
428 # Do we need the opcodes library?
430 vax | tic30 | i386 | arm)
436 case "${enable_shared}" in
437 yes) shared_opcodes=true ;;
438 *opcodes*) shared_opcodes=true ;;
439 *) shared_opcodes=false ;;
444 # Any other special object files needed ?
448 for f in config/bfin-parse.o config/bfin-lex-wrapper.o; do
449 case " $extra_objects " in
451 *) extra_objects="$extra_objects $f" ;;
457 if test $this_target = $target ; then
458 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
461 epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
466 for f in config/loongarch-parse.o config/loongarch-lex-wrapper.o; do
467 case " $extra_objects " in
469 *) extra_objects="$extra_objects $f" ;;
472 # --target=loongarch[32|64]-*-*. */
473 if test $this_target = $target ; then
474 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
485 for f in config/kvx-parse.o; do
486 case " $extra_objects " in
488 *) extra_objects="$extra_objects $f" ;;
493 f=config/m68k-parse.o
494 case " $extra_objects " in
496 *) extra_objects="$extra_objects $f" ;;
505 for f in itbl-parse.o itbl-lex-wrapper.o itbl-ops.o; do
506 case " $extra_objects " in
508 *) extra_objects="$extra_objects $f" ;;
518 # setup NDS32_LINUX_TOOLCHAIN definition
519 if test "linux" = $em; then
520 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 1,
521 [Define value for nds32_linux_toolchain])
523 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 0,
524 [Define default value for nds32_linux_toolchain])
527 # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
528 # based on arch_name.
529 AC_MSG_CHECKING(for default configuration of --with-arch)
530 if test "x${with_arch}" != x; then
532 v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
533 AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
534 [Define value for nds32_arch_name])
537 AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
541 AC_MSG_RESULT($with_arch)
543 # Decide features one by one.
544 AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
545 if test "x${enable_dx_regs}" = xyes; then
546 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
547 [Define value for nds32_dx_regs])
549 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
550 [Define default value for nds32_dx_regs])
552 AC_MSG_RESULT($enable_dx_regs)
554 AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
555 if test "x${enable_perf_ext}" = xno; then
556 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
557 [Define value for nds32_perf_ext])
559 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
560 [Define default value for nds32_perf_ext])
562 AC_MSG_RESULT($enable_perf_ext)
564 AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
565 if test "x${enable_perf_ext2}" = xno; then
566 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
567 [Define value for nds32_perf_ext2])
569 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
570 [Define default value for nds32_perf_ext2])
572 AC_MSG_RESULT($enable_perf_ext2)
574 AC_MSG_CHECKING(for default configuration of --enable-string-ext)
575 if test "x${enable_string_ext}" = xno; then
576 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
577 [Define value for nds32_string_ext])
579 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
580 [Define default value for nds32_string_ext])
582 AC_MSG_RESULT($enable_string_ext)
584 AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
585 if test "x${enable_audio_ext}" = xno; then
586 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
587 [Define value for nds32_audio_ext])
589 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
590 [Define default value for nds32_audio_ext])
592 AC_MSG_RESULT($enable_audio_ext)
594 AC_MSG_CHECKING(for default configuration of --enable-dsp-ext)
595 if test "x${enable_dsp_ext}" = xno; then
596 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 0,
597 [Define value for nds32_dsp_ext])
599 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 1,
600 [Define default value for nds32_dsp_ext])
602 AC_MSG_RESULT($enable_dsp_ext)
604 AC_MSG_CHECKING(for default configuration of --enable-zol-ext)
605 if test "x${enable_zol_ext}" = xno; then
606 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 0,
607 [Define value for nds32_zol_ext])
609 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 1,
610 [Define default value for nds32_zol_ext])
612 AC_MSG_RESULT($enable_zol_ext)
615 aarch64 | i386 | s390 | sparc)
616 if test $this_target = $target ; then
617 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
622 # --target=riscv[32|64]-*-*. */
623 if test $this_target = $target ; then
624 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
627 # --with-arch=<value>. The syntax of <value> is same as Gas option -march.
628 AC_MSG_CHECKING(for default configuration of --with-arch)
629 if test "x${with_arch}" != x; then
630 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ARCH_WITH_EXT, "$with_arch",
631 [Define default value for RISC-V -march.])
633 AC_MSG_RESULT($with_arch)
635 # --with-isa-spec=[2.2|20190608|20191213].
636 AC_MSG_CHECKING(for default configuration of --with-isa-spec)
637 if test "x${with_isa_spec}" != x; then
638 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ISA_SPEC, "$with_isa_spec",
639 [Define default value for RISC-V -misa-spec.])
641 AC_MSG_RESULT($with_isa_spec)
643 # --with-priv-spec=[1.9.1|1.10|1.11|1.12].
644 AC_MSG_CHECKING(for default configuration of --with-priv-spec)
645 if test "x${with_priv_spec}" != x; then
646 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_PRIV_SPEC, "$with_priv_spec",
647 [Define default value for RISC-V -mpriv-spec])
649 AC_MSG_RESULT($with_priv_spec)
653 f=config/rl78-parse.o
654 case " $extra_objects " in
656 *) extra_objects="$extra_objects $f" ;;
662 case " $extra_objects " in
664 *) extra_objects="$extra_objects $f" ;;
673 f=config/xtensa-relax.o
674 case " $extra_objects " in
676 *) extra_objects="$extra_objects $f" ;;
684 if test $using_cgen = yes ; then
686 case " $extra_objects " in
688 *) extra_objects="$extra_objects $f" ;;
692 # See if we really can support this configuration with the emulation code.
694 if test $this_target = $target ; then
702 case " $extra_objects " in
704 *) extra_objects="$extra_objects $f" ;;
708 # From target name and format, produce a list of supported emulations.
710 case ${generic_target}-${fmt} in
711 mips-*-*-*) case "$endian" in
712 big) emulation="mipsbelf mipslelf mipself" ;;
713 *) emulation="mipslelf mipsbelf mipself" ;;
715 # i386-pc-pe-coff != i386-pc-coff.
717 # Uncommenting the next line will turn on support for i386 AOUT
718 # for the default linux configuration
719 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
721 i386-*-aout) emulation="i386aout" ;;
722 i386-*-coff) emulation="i386coff" ;;
723 i386-*-elf) emulation="i386elf" ;;
725 # Always all formats. The first stated emulation becomes the default.
726 cris-*-*aout*) emulation="crisaout criself" ;;
727 cris-*-*) emulation="criself crisaout" ;;
730 emulations="$emulations $emulation"
734 if test ${ac_default_x86_relax_relocations} = unset; then
735 ac_default_x86_relax_relocations=1
737 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
738 $ac_default_x86_relax_relocations,
739 [Define to 1 if you want to generate x86 relax relocations by default.])
741 if test ${ac_default_elf_stt_common} = unset; then
742 ac_default_elf_stt_common=0
744 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
745 $ac_default_elf_stt_common,
746 [Define to 1 if you want to generate ELF common symbols with the
747 STT_COMMON type by default.])
749 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_BUILD_NOTES,
750 $ac_default_generate_build_notes,
751 [Define to 1 if you want to generate GNU Build attribute notes
752 by default, if none are contained in the input.])
754 if test ${ac_default_generate_x86_used_note} = unset; then
755 ac_default_generate_x86_used_note=0
757 AC_DEFINE_UNQUOTED(DEFAULT_X86_USED_NOTE,
758 $ac_default_generate_x86_used_note,
759 [Define to 1 if you want to generate GNU x86 used ISA and feature
760 properties by default.])
762 if test ${ac_default_generate_riscv_attr} = unset; then
763 ac_default_generate_riscv_attr=1
766 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ATTR,
767 $ac_default_generate_riscv_attr,
768 [Define to 1 if you want to generate RISC-V arch attribute by default.])
770 if test ${ac_default_mips_fix_loongson3_llsc} = unset; then
771 ac_default_mips_fix_loongson3_llsc=0
773 AC_DEFINE_UNQUOTED(DEFAULT_MIPS_FIX_LOONGSON3_LLSC,
774 $ac_default_mips_fix_loongson3_llsc,
775 [Define to 1 if you want to fix Loongson3 LLSC Errata by default.])
777 if test x$ac_default_compressed_debug_sections = xyes ; then
778 AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
781 AC_DEFINE_UNQUOTED(DEFAULT_COMPRESSED_DEBUG_ALGORITHM, $ac_default_compressed_debug_sections_algorithm,
782 [Default compression algorithm for --enable-compressed-debug-sections.])
784 # Turn on all targets if possible
785 if test ${all_targets} = "yes"; then
786 case ${target_cpu_type} in
788 case ${obj_format} in
790 emulations="$emulations i386coff i386elf"
793 emulations="$emulations i386aout i386elf"
796 emulations="$emulations i386aout i386coff"
801 case ${obj_format} in
803 emulations="$emulations i386coff i386elf"
806 emulations="$emulations i386aout i386elf"
809 emulations="$emulations i386aout i386coff"
816 # PE code has way too many macros tweaking behaviour
818 pe*) emulations="" ;;
821 # Assign floating point type. Most processors with FP support
822 # IEEE FP. On those that don't support FP at all, usually IEEE
824 case ${target_cpu} in
825 vax | pdp11 ) atof=vax ;;
829 case "${obj_format}" in
830 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
833 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
835 if test $using_cgen = yes ; then
836 case ${target_cpu} in
838 cgen_cpu_prefix=or1k ;;
839 *) cgen_cpu_prefix=${target_cpu} ;;
841 AC_SUBST(cgen_cpu_prefix)
842 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
846 dnl Make sure the desired support files exist.
849 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
850 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
853 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
854 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
857 # Some COFF configurations want these random other flags set.
858 case ${obj_format} in
860 case ${target_cpu_type} in
861 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
862 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
867 # Getting this done right is going to be a bitch. Each configuration specified
868 # with --enable-targets=... should be checked for environment, format, cpu
871 # For each configuration, the necessary object file support code must be linked
872 # in. This might be only one, it might be up to four. The necessary emulation
873 # code needs to be provided, too.
875 # And then there's "--enable-targets=all"....
877 # For now, just always do it for MIPS ELF configurations. Sigh.
879 formats="${obj_format}"
883 for em in . $emulations ; do
886 mipsbelf | mipslelf | mipself)
887 fmt=elf file=mipself ;;
895 formats="$formats $fmt"
896 emfiles="$emfiles config/e-$file.o"
897 EMULATIONS="$EMULATIONS &$em,"
901 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
902 for fmt in $formats ; do
904 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
905 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
906 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
907 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
908 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
909 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
911 extra_objects="$extra_objects config/obj-$fmt.o"
915 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
916 DEFAULT_EMULATION=`set . $emulations ; echo $2`
917 # e-mipself has more than one emulation per file, e-i386* has just one at the
918 # moment. If only one emulation is specified, then don't define
919 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
920 case "${obj_format}${emfiles}" in
922 extra_objects="$extra_objects $emfiles"
923 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
926 AC_SUBST(extra_objects)
927 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
928 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
929 [Default emulation.])
931 reject_dev_configs=yes
933 case ${reject_dev_configs}-${dev} in
935 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
939 AC_SUBST(target_cpu_type)
942 AC_SUBST(install_tooldir)
944 dnl AC_SUBST(emulation)
946 # do we need the opcodes library?
947 case "${need_opcodes}" in
949 OPCODES_LIB=../opcodes/libopcodes.la
953 AC_SUBST(OPCODES_LIB)
955 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
956 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
957 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
958 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
959 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
964 ALL_LINGUAS="es fi fr id ja ru rw sv tr uk zh_CN"
965 ZW_GNU_GETTEXT_SISTER_DIR
969 AM_CONDITIONAL(GENINSRC_NEVER, false)
972 AC_CHECK_HEADERS(memory.h sys/stat.h sys/types.h unistd.h)
974 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
975 # people who are not cross-compiling but are compiling cross-assemblers.
976 AC_MSG_CHECKING(whether compiling a cross-assembler)
977 if test "${host}" = "${target}"; then
981 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
983 AC_MSG_RESULT($cross_gas)
985 AC_CHECK_FUNCS(strsignal)
989 # do we need the math library?
990 case "${need_libm}" in
997 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
998 # enough, but on some of those systems, the assert macro relies on requoting
1002 # On some systems, the system header files may not declare malloc, realloc,
1003 # and free. There are places where gas needs these functions to have been
1004 # declared -- such as when taking their addresses.
1006 #ifdef HAVE_MEMORY_H
1011 #ifdef HAVE_UNISTD_H
1016 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
1017 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
1018 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
1019 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
1020 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
1021 if test $gas_cv_decl_getopt_unistd_h = yes; then
1022 AC_DEFINE([HAVE_DECL_GETOPT], 1,
1023 [Is the prototype for getopt in <unistd.h> in the expected format?])
1026 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
1027 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
1029 AC_CHECK_DECLS([asprintf, mempcpy, stpcpy])
1033 # Link in zlib/zstd if we can. This allows us to write compressed debug sections.
1037 # Support for VMS timestamps via cross compile
1039 if test "$ac_cv_header_time_h" = yes; then
1040 GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
1043 if test "$ac_cv_header_sys_stat_h" = yes; then
1044 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
1045 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
1049 dnl Required for html, pdf, install-pdf and install-html targets.
1050 AC_SUBST(datarootdir)
1055 dnl This must come last.
1057 dnl We used to make symlinks to files in the source directory, but now
1058 dnl we just use the right name for .c files, and create .h files in
1059 dnl the build directory which include the right .h file. Make sure
1060 dnl the old symlinks don't exist, so that a reconfigure in an existing
1061 dnl directory behaves reasonably.
1063 AC_CONFIG_FILES(Makefile po/Makefile.in:po/Make-in)
1064 AC_CONFIG_COMMANDS([default],
1065 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
1066 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
1067 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
1068 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
1069 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
1070 if test "x$cgen_cpu_prefix" != x ; then
1071 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
1073 [target_cpu_type=${target_cpu_type}
1074 cgen_cpu_prefix=${cgen_cpu_prefix}
1075 obj_format=${obj_format}
1076 te_file=${te_file}])