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])
37 AC_USE_SYSTEM_EXTENSIONS
41 ACX_PROG_CMP_IGNORE_INITIAL
43 AC_ARG_ENABLE(targets,
44 [ --enable-targets alternative target configurations besides the primary],
45 [case "${enableval}" in
46 yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all')
48 no) enable_targets= ;;
49 *) enable_targets=$enableval ;;
53 . ${srcdir}/../bfd/development.sh
54 test "$development" = true && ac_checking=yes
55 AC_ARG_ENABLE(checking,
56 [ --enable-checking enable run-time checks],
57 [case "${enableval}" in
58 no|none) ac_checking= ;;
61 if test x$ac_checking != x ; then
62 AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
66 # Decide the default method for compressing debug sections.
67 ac_default_compressed_debug_sections=unset
68 # Provide a configure time option to override our default.
69 AC_ARG_ENABLE(compressed_debug_sections,
70 AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,none}],
71 [compress debug sections by default]),
72 [case ,"${enableval}", in
73 ,yes, | ,all, | *,gas,*) ac_default_compressed_debug_sections=yes ;;
74 ,no, | ,none,) ac_default_compressed_debug_sections=no ;;
75 *) ac_default_compressed_debug_sections=unset ;;
78 # Select default compression algorithm.
79 ac_default_compressed_debug_sections_algorithm=COMPRESS_DEBUG_GABI_ZLIB
80 AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
81 AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
82 [Default compression algorithm for --enable-compressed-debug-sections.]),
83 [case "${enableval}" in
84 zstd) ac_default_compressed_debug_sections_algorithm=COMPRESS_DEBUG_ZSTD ;;
88 # Decide if x86 assembler should generate relax relocations.
89 ac_default_x86_relax_relocations=unset
90 # Provide a configure time option to override our default.
91 AC_ARG_ENABLE(x86_relax_relocations,
92 AS_HELP_STRING([--enable-x86-relax-relocations],
93 [generate x86 relax relocations by default]),
94 [case "${enableval}" in
95 no) ac_default_x86_relax_relocations=0 ;;
99 # Decide if x86 assembler should check TLS relocation.
100 ac_default_x86_tls_check=unset
101 # Provide a configure time option to override our default.
102 AC_ARG_ENABLE(x86_tls_check,
103 AS_HELP_STRING([--enable-x86-tls-check],
104 [check x86 TLS relocation by default]),
105 [case "${enableval}" in
106 no) ac_default_x86_tls_check=0 ;;
109 # Decide if ELF assembler should generate common symbols with the
111 ac_default_elf_stt_common=unset
112 # Provide a configure time option to override our default.
113 AC_ARG_ENABLE(elf_stt_common,
114 AS_HELP_STRING([--enable-elf-stt-common],
115 [generate ELF common symbols with STT_COMMON type by default]),
116 [case "${enableval}" in
117 yes) ac_default_elf_stt_common=1 ;;
121 # Decide if the ELF assembler should default to generating
122 # GNU Build notes if none are provided by the input.
123 ac_default_generate_build_notes=0
124 # Provide a configuration option to override the default.
125 AC_ARG_ENABLE(generate_build_notes,
126 AS_HELP_STRING([--enable-generate-build-notes],
127 [generate GNU Build notes if none are provided by the input]),
128 [case "${enableval}" in
129 yes) ac_default_generate_build_notes=1 ;;
130 no) ac_default_generate_build_notes=0 ;;
133 # Decide if the MIPS assembler should default to enable MIPS fix Loongson3
135 ac_default_mips_fix_loongson3_llsc=unset
136 # Provide a configuration option to override the default.
137 AC_ARG_ENABLE(mips-fix-loongson3-llsc,
138 AS_HELP_STRING([--enable-mips-fix-loongson3-llsc],
139 [enable MIPS fix Loongson3 LLSC errata]),
140 [case "${enableval}" in
141 yes) ac_default_mips_fix_loongson3_llsc=1 ;;
142 no) ac_default_mips_fix_loongson3_llsc=0 ;;
145 # Decide if the x86 ELF assembler should default to generating GNU x86
146 # used ISA and feature properties.
147 ac_default_generate_x86_used_note=unset
148 # Provide a configuration option to override the default.
149 AC_ARG_ENABLE(x86-used-note,
150 AS_HELP_STRING([--enable-x86-used-note],
151 [generate GNU x86 used ISA and feature properties]),
152 [case "${enableval}" in
153 yes) ac_default_generate_x86_used_note=1 ;;
154 no) ac_default_generate_x86_used_note=0 ;;
157 # Decide if the RISC-V ELF assembler should default to generating attribute.
158 ac_default_generate_riscv_attr=unset
159 # Provide a configuration option to override the default.
160 AC_ARG_ENABLE(default-riscv-attribute,
161 AS_HELP_STRING([--enable-default-riscv-attribute],
162 [generate RISC-V arch attribute by default]),
163 [case "${enableval}" in
164 yes) ac_default_generate_riscv_attr=1 ;;
165 no) ac_default_generate_riscv_attr=0 ;;
172 # Generate a header file
173 AC_CONFIG_HEADERS(config.h:config.in)
175 dnl Option --with-cpu=TYPE allows configure type control of the default
176 dnl cpu type within the assembler. Currently only the ARC target
177 dnl supports this feature, but others may be added in the future.
179 AS_HELP_STRING([--with-cpu=CPU],
180 [default cpu variant is CPU (currently only supported on ARC)]),
181 [AC_DEFINE_UNQUOTED(TARGET_WITH_CPU,
183 [Target specific CPU.])],
187 AH_VERBATIM([00_CONFIG_H_CHECK],
188 [/* Check that config.h is #included before system headers
189 (this works only for glibc, but that should be enough). */
190 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
191 # error config.h must be #included before system headers
193 #define __CONFIG_H__ 1])
195 # If we are on a DOS filesystem, we must use gdb.ini rather than
198 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
200 AC_CONFIG_FILES(gdb.ini:gdbinit.in)
204 AC_CONFIG_FILES(.gdbinit:gdbinit.in)
209 #We need this for the host.
214 # Makefile target for installing gas in $(tooldir)/bin.
215 install_tooldir=install-exec-tooldir
219 if test -n "$enable_targets" ; then
220 for t in `echo $enable_targets | sed 's/,/ /g'`; do
221 if test $t = "all"; then
225 result=`$ac_config_sub $t 2>/dev/null`
226 if test -n "$result" ; then
227 canon_targets="$canon_targets $result"
229 # # Permit "all", etc. We don't support it yet though.
230 # canon_targets="$canon_targets $t"
233 GAS_UNIQ(canon_targets)
238 for this_target in $target $canon_targets ; do
241 . ${srcdir}/configure.tgt
243 case ${target_cpu} in
245 AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
246 [Default CRIS architecture.])
250 if test ${this_target} = $target ; then
251 target_cpu_type=${cpu_type}
252 elif test ${target_cpu_type} != ${cpu_type} ; then
256 generic_target=${cpu_type}-${target_vendor}-${target_os}
257 case ${generic_target} in
260 AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
263 i386-*-linux-* | x86_64-*-linux-*)
264 if test ${this_target} = $target \
265 && test ${ac_default_generate_x86_used_note} = unset; then
266 ac_default_generate_x86_used_note=1
271 | x86_64-*-solaris2 \
272 | i386-*-solaris2.[[0-9]] \
273 | i386-*-solaris2.1[[01]] \
274 | x86_64-*-solaris2.1[[01]])
275 if test ${this_target} = $target \
276 && test ${ac_default_x86_relax_relocations} = unset; then
277 ac_default_x86_relax_relocations=0
289 AC_DEFINE(AIX_WEAK_SUPPORT, 1,
290 [Define if using AIX 5.2 value for C_WEAKEXT.])
293 if test ${this_target} = $target; then
294 AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
295 [Define if default target is PowerPC Solaris.])
297 if test x${endian} = xbig; then
298 AC_MSG_ERROR(Solaris must be configured little endian)
303 if test ${this_target} = $target ; then
305 if test x${endian} = xbig; then
307 elif test x${endian} = xlittle; then
310 if test x${endian_def} != x; then
311 AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
312 [Define as 1 if big endian.])
316 # Other random stuff.
320 # Set mips_cpu to the name of the default CPU.
321 case ${target_cpu} in
322 mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
325 mipsisa32 | mipsisa32el)
328 mipsisa32r2 | mipsisa32r2el)
331 mipsisa32r3 | mipsisa32r3el)
334 mipsisa32r5 | mipsisa32r5el)
337 mipsisa32r6 | mipsisa32r6el)
340 mipsisa64 | mipsisa64el)
343 mipsisa64r2 | mipsisa64r2el)
346 mipsisa64r3 | mipsisa64r3el)
349 mipsisa64r5 | mipsisa64r5el)
352 mipsisa64r6 | mipsisa64r6el)
355 mipstx39 | mipstx39el)
358 mips64vr | mips64vrel)
361 mipsisa32r2* | mipsisa64r2*)
363 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
366 mipsisa32r6* | mipsisa64r6*)
368 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
371 mips64* | mipsisa64* | mipsisa32*)
373 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
378 mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
382 AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
385 # See whether it's appropriate to set EF_MIPS_ABI_O32 for o32
386 # binaries. It's a GNU extension that some OSes don't understand.
389 use_ef_mips_abi_o32=0
392 use_ef_mips_abi_o32=1
395 # If Vendor is IMG, then MIPSr6 is used
401 # Decide whether to generate 32-bit or 64-bit code by default.
402 # Used to resolve -march=from-abi when an embedded ABI is selected.
404 mips64*-*-* | mipsisa64*-*-*)
411 # Decide which ABI to target by default.
413 mips64*-openbsd* | mips64*-linux-gnuabi64)
414 mips_default_abi=N64_ABI
416 mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
417 | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
418 mips_default_abi=N32_ABI
420 mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
421 mips_default_abi=O32_ABI
424 mips_default_abi=NO_ABI
427 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
428 [Default CPU for MIPS targets. ])
429 AC_DEFINE_UNQUOTED(USE_EF_MIPS_ABI_O32, $use_ef_mips_abi_o32,
430 [Allow use of EF_MIPS_ABI_O32 on MIPS targets. ])
431 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
432 [Generate 64-bit code by default on MIPS targets. ])
433 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
434 [Choose a default ABI for MIPS targets. ])
438 # Do we need the opcodes library?
440 vax | tic30 | i386 | arm)
446 case "${enable_shared}" in
447 yes) shared_opcodes=true ;;
448 *opcodes*) shared_opcodes=true ;;
449 *) shared_opcodes=false ;;
454 # Any other special object files needed ?
458 for f in config/bfin-parse.o config/bfin-lex-wrapper.o; do
459 case " $extra_objects " in
461 *) extra_objects="$extra_objects $f" ;;
467 if test $this_target = $target ; then
468 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
471 epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
476 for f in config/loongarch-parse.o config/loongarch-lex-wrapper.o; do
477 case " $extra_objects " in
479 *) extra_objects="$extra_objects $f" ;;
482 # --target=loongarch[32|64]-*-*. */
483 if test $this_target = $target ; then
484 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
495 for f in config/kvx-parse.o; do
496 case " $extra_objects " in
498 *) extra_objects="$extra_objects $f" ;;
503 f=config/m68k-parse.o
504 case " $extra_objects " in
506 *) extra_objects="$extra_objects $f" ;;
515 for f in itbl-parse.o itbl-lex-wrapper.o itbl-ops.o; do
516 case " $extra_objects " in
518 *) extra_objects="$extra_objects $f" ;;
528 # setup NDS32_LINUX_TOOLCHAIN definition
529 if test "linux" = $em; then
530 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 1,
531 [Define value for nds32_linux_toolchain])
533 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 0,
534 [Define default value for nds32_linux_toolchain])
537 # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
538 # based on arch_name.
539 AC_MSG_CHECKING(for default configuration of --with-arch)
540 if test "x${with_arch}" != x; then
542 v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
543 AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
544 [Define value for nds32_arch_name])
547 AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
551 AC_MSG_RESULT($with_arch)
553 # Decide features one by one.
554 AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
555 if test "x${enable_dx_regs}" = xyes; then
556 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
557 [Define value for nds32_dx_regs])
559 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
560 [Define default value for nds32_dx_regs])
562 AC_MSG_RESULT($enable_dx_regs)
564 AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
565 if test "x${enable_perf_ext}" = xno; then
566 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
567 [Define value for nds32_perf_ext])
569 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
570 [Define default value for nds32_perf_ext])
572 AC_MSG_RESULT($enable_perf_ext)
574 AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
575 if test "x${enable_perf_ext2}" = xno; then
576 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
577 [Define value for nds32_perf_ext2])
579 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
580 [Define default value for nds32_perf_ext2])
582 AC_MSG_RESULT($enable_perf_ext2)
584 AC_MSG_CHECKING(for default configuration of --enable-string-ext)
585 if test "x${enable_string_ext}" = xno; then
586 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
587 [Define value for nds32_string_ext])
589 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
590 [Define default value for nds32_string_ext])
592 AC_MSG_RESULT($enable_string_ext)
594 AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
595 if test "x${enable_audio_ext}" = xno; then
596 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
597 [Define value for nds32_audio_ext])
599 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
600 [Define default value for nds32_audio_ext])
602 AC_MSG_RESULT($enable_audio_ext)
604 AC_MSG_CHECKING(for default configuration of --enable-dsp-ext)
605 if test "x${enable_dsp_ext}" = xno; then
606 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 0,
607 [Define value for nds32_dsp_ext])
609 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 1,
610 [Define default value for nds32_dsp_ext])
612 AC_MSG_RESULT($enable_dsp_ext)
614 AC_MSG_CHECKING(for default configuration of --enable-zol-ext)
615 if test "x${enable_zol_ext}" = xno; then
616 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 0,
617 [Define value for nds32_zol_ext])
619 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 1,
620 [Define default value for nds32_zol_ext])
622 AC_MSG_RESULT($enable_zol_ext)
625 aarch64 | i386 | s390 | sparc)
626 if test $this_target = $target ; then
627 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
632 # --target=riscv[32|64]-*-*. */
633 if test $this_target = $target ; then
634 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
637 # --with-arch=<value>. The syntax of <value> is same as Gas option -march.
638 AC_MSG_CHECKING(for default configuration of --with-arch)
639 if test "x${with_arch}" != x; then
640 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ARCH_WITH_EXT, "$with_arch",
641 [Define default value for RISC-V -march.])
643 AC_MSG_RESULT($with_arch)
645 # --with-isa-spec=[2.2|20190608|20191213].
646 AC_MSG_CHECKING(for default configuration of --with-isa-spec)
647 if test "x${with_isa_spec}" != x; then
648 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ISA_SPEC, "$with_isa_spec",
649 [Define default value for RISC-V -misa-spec.])
651 AC_MSG_RESULT($with_isa_spec)
653 # --with-priv-spec=[1.9.1|1.10|1.11|1.12].
654 AC_MSG_CHECKING(for default configuration of --with-priv-spec)
655 if test "x${with_priv_spec}" != x; then
656 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_PRIV_SPEC, "$with_priv_spec",
657 [Define default value for RISC-V -mpriv-spec])
659 AC_MSG_RESULT($with_priv_spec)
663 f=config/rl78-parse.o
664 case " $extra_objects " in
666 *) extra_objects="$extra_objects $f" ;;
672 case " $extra_objects " in
674 *) extra_objects="$extra_objects $f" ;;
683 f=config/xtensa-relax.o
684 case " $extra_objects " in
686 *) extra_objects="$extra_objects $f" ;;
694 if test $using_cgen = yes ; then
696 case " $extra_objects " in
698 *) extra_objects="$extra_objects $f" ;;
702 # See if we really can support this configuration with the emulation code.
704 if test $this_target = $target ; then
712 case " $extra_objects " in
714 *) extra_objects="$extra_objects $f" ;;
718 # From target name and format, produce a list of supported emulations.
720 case ${generic_target}-${fmt} in
721 mips-*-*-*) case "$endian" in
722 big) emulation="mipsbelf mipslelf mipself" ;;
723 *) emulation="mipslelf mipsbelf mipself" ;;
726 # Always all formats. The first stated emulation becomes the default.
727 cris-*-*aout*) emulation="crisaout criself" ;;
728 cris-*-*) emulation="criself crisaout" ;;
731 emulations="$emulations $emulation"
735 if test ${ac_default_x86_relax_relocations} = unset; then
736 ac_default_x86_relax_relocations=1
738 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
739 $ac_default_x86_relax_relocations,
740 [Define to 1 if you want to generate x86 relax relocations by default.])
742 if test ${ac_default_x86_tls_check} = unset; then
743 ac_default_x86_tls_check=1
745 AC_DEFINE_UNQUOTED(DEFAULT_X86_TLS_CHECK,
746 $ac_default_x86_tls_check,
747 [Define to 1 if you want to check x86 TLS relocation by default.])
749 if test ${ac_default_elf_stt_common} = unset; then
750 ac_default_elf_stt_common=0
752 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
753 $ac_default_elf_stt_common,
754 [Define to 1 if you want to generate ELF common symbols with the
755 STT_COMMON type by default.])
757 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_BUILD_NOTES,
758 $ac_default_generate_build_notes,
759 [Define to 1 if you want to generate GNU Build attribute notes
760 by default, if none are contained in the input.])
762 if test ${ac_default_generate_x86_used_note} = unset; then
763 ac_default_generate_x86_used_note=0
765 AC_DEFINE_UNQUOTED(DEFAULT_X86_USED_NOTE,
766 $ac_default_generate_x86_used_note,
767 [Define to 1 if you want to generate GNU x86 used ISA and feature
768 properties by default.])
770 if test ${ac_default_generate_riscv_attr} = unset; then
771 ac_default_generate_riscv_attr=1
774 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ATTR,
775 $ac_default_generate_riscv_attr,
776 [Define to 1 if you want to generate RISC-V arch attribute by default.])
778 if test ${ac_default_mips_fix_loongson3_llsc} = unset; then
779 ac_default_mips_fix_loongson3_llsc=0
781 AC_DEFINE_UNQUOTED(DEFAULT_MIPS_FIX_LOONGSON3_LLSC,
782 $ac_default_mips_fix_loongson3_llsc,
783 [Define to 1 if you want to fix Loongson3 LLSC Errata by default.])
785 if test x$ac_default_compressed_debug_sections = xyes ; then
786 AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
789 AC_DEFINE_UNQUOTED(DEFAULT_COMPRESSED_DEBUG_ALGORITHM, $ac_default_compressed_debug_sections_algorithm,
790 [Default compression algorithm for --enable-compressed-debug-sections.])
792 # PE code has way too many macros tweaking behaviour
794 pe*) emulations="" ;;
797 # Assign floating point type. Most processors with FP support
798 # IEEE FP. On those that don't support FP at all, usually IEEE
800 case ${target_cpu} in
801 vax | pdp11 ) atof=vax ;;
805 case "${obj_format}" in
806 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
809 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
811 if test $using_cgen = yes ; then
812 case ${target_cpu} in
814 cgen_cpu_prefix=or1k ;;
815 *) cgen_cpu_prefix=${target_cpu} ;;
817 AC_SUBST(cgen_cpu_prefix)
818 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
822 dnl Make sure the desired support files exist.
825 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
826 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
829 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
830 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
833 # Some COFF configurations want these random other flags set.
834 case ${obj_format} in
836 case ${target_cpu_type} in
837 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
838 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
843 # Getting this done right is going to be a bitch. Each configuration specified
844 # with --enable-targets=... should be checked for environment, format, cpu
847 # For each configuration, the necessary object file support code must be linked
848 # in. This might be only one, it might be up to four. The necessary emulation
849 # code needs to be provided, too.
851 # And then there's "--enable-targets=all"....
853 # For now, just always do it for MIPS ELF configurations. Sigh.
855 formats="${obj_format}"
859 for em in . $emulations ; do
862 mipsbelf | mipslelf | mipself)
863 fmt=elf file=mipself ;;
871 formats="$formats $fmt"
872 emfiles="$emfiles config/e-$file.o"
873 EMULATIONS="$EMULATIONS &$em,"
877 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
878 for fmt in $formats ; do
880 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
881 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
882 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
883 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
884 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
885 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
887 extra_objects="$extra_objects config/obj-$fmt.o"
891 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
892 DEFAULT_EMULATION=`set . $emulations ; echo $2`
893 # e-mipself has more than one emulation per file, e-i386* has just one at the
894 # moment. If only one emulation is specified, then don't define
895 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
896 case "${obj_format}${emfiles}" in
898 extra_objects="$extra_objects $emfiles"
899 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
902 AC_SUBST(extra_objects)
903 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
904 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
905 [Default emulation.])
907 reject_dev_configs=yes
909 case ${reject_dev_configs}-${dev} in
911 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
915 AC_SUBST(target_cpu_type)
918 AC_SUBST(install_tooldir)
920 dnl AC_SUBST(emulation)
922 # do we need the opcodes library?
923 case "${need_opcodes}" in
925 OPCODES_LIB=../opcodes/libopcodes.la
929 AC_SUBST(OPCODES_LIB)
931 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
932 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
933 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
934 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
935 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
940 ALL_LINGUAS="es fi fr id ja ru rw sv tr uk zh_CN"
941 ZW_GNU_GETTEXT_SISTER_DIR
945 AM_CONDITIONAL(GENINSRC_NEVER, false)
948 AC_CHECK_HEADERS(memory.h sys/stat.h sys/types.h unistd.h)
950 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
951 # people who are not cross-compiling but are compiling cross-assemblers.
952 AC_MSG_CHECKING(whether compiling a cross-assembler)
953 if test "${host}" = "${target}"; then
957 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
959 AC_MSG_RESULT($cross_gas)
961 AC_CHECK_FUNCS(strsignal)
965 # do we need the math library?
966 case "${need_libm}" in
973 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
974 # enough, but on some of those systems, the assert macro relies on requoting
978 # On some systems, the system header files may not declare malloc, realloc,
979 # and free. There are places where gas needs these functions to have been
980 # declared -- such as when taking their addresses.
992 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
993 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
994 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
995 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
996 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
997 if test $gas_cv_decl_getopt_unistd_h = yes; then
998 AC_DEFINE([HAVE_DECL_GETOPT], 1,
999 [Is the prototype for getopt in <unistd.h> in the expected format?])
1002 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
1003 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
1005 AC_CHECK_DECLS([mempcpy, stpcpy])
1009 # Link in zlib/zstd if we can. This allows us to write compressed debug sections.
1013 # Support for VMS timestamps via cross compile
1015 if test "$ac_cv_header_time_h" = yes; then
1016 GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
1019 if test "$ac_cv_header_sys_stat_h" = yes; then
1020 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
1021 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
1025 dnl Required for html, pdf, install-pdf and install-html targets.
1026 AC_SUBST(datarootdir)
1031 dnl This must come last.
1033 dnl We used to make symlinks to files in the source directory, but now
1034 dnl we just use the right name for .c files, and create .h files in
1035 dnl the build directory which include the right .h file. Make sure
1036 dnl the old symlinks don't exist, so that a reconfigure in an existing
1037 dnl directory behaves reasonably.
1039 AC_CONFIG_FILES(Makefile po/Makefile.in:po/Make-in)
1040 AC_CONFIG_COMMANDS([default],
1041 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
1042 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
1043 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
1044 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
1045 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
1046 if test "x$cgen_cpu_prefix" != x ; then
1047 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
1049 [target_cpu_type=${target_cpu_type}
1050 cgen_cpu_prefix=${cgen_cpu_prefix}
1051 obj_format=${obj_format}
1052 te_file=${te_file}])