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) 2012-2023 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
277 AC_DEFINE(AIX_WEAK_SUPPORT, 1,
278 [Define if using AIX 5.2 value for C_WEAKEXT.])
281 if test ${this_target} = $target; then
282 AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
283 [Define if default target is PowerPC Solaris.])
285 if test x${endian} = xbig; then
286 AC_MSG_ERROR(Solaris must be configured little endian)
291 if test ${this_target} = $target ; then
293 if test x${endian} = xbig; then
295 elif test x${endian} = xlittle; then
298 if test x${endian_def} != x; then
299 AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
300 [Define as 1 if big endian.])
304 # Other random stuff.
308 # Set mips_cpu to the name of the default CPU.
309 case ${target_cpu} in
310 mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
313 mipsisa32 | mipsisa32el)
316 mipsisa32r2 | mipsisa32r2el)
319 mipsisa32r3 | mipsisa32r3el)
322 mipsisa32r5 | mipsisa32r5el)
325 mipsisa32r6 | mipsisa32r6el)
328 mipsisa64 | mipsisa64el)
331 mipsisa64r2 | mipsisa64r2el)
334 mipsisa64r3 | mipsisa64r3el)
337 mipsisa64r5 | mipsisa64r5el)
340 mipsisa64r6 | mipsisa64r6el)
343 mipstx39 | mipstx39el)
346 mips64vr | mips64vrel)
349 mipsisa32r2* | mipsisa64r2*)
351 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
354 mipsisa32r6* | mipsisa64r6*)
356 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
359 mips64* | mipsisa64* | mipsisa32*)
361 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
366 mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
370 AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
373 # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
374 # binaries. It's a GNU extension that some OSes don't understand.
383 # Decide whether to generate 32-bit or 64-bit code by default.
384 # Used to resolve -march=from-abi when an embedded ABI is selected.
386 mips64*-*-* | mipsisa64*-*-*)
393 # Decide which ABI to target by default.
395 mips64*-openbsd* | mips64*-linux-gnuabi64)
396 mips_default_abi=N64_ABI
398 mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
399 | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
400 mips_default_abi=N32_ABI
402 mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
403 mips_default_abi=O32_ABI
406 mips_default_abi=NO_ABI
409 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
410 [Default CPU for MIPS targets. ])
411 AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
412 [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
413 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
414 [Generate 64-bit code by default on MIPS targets. ])
415 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
416 [Choose a default ABI for MIPS targets. ])
420 # Do we need the opcodes library?
422 vax | tic30 | i386 | arm)
428 case "${enable_shared}" in
429 yes) shared_opcodes=true ;;
430 *opcodes*) shared_opcodes=true ;;
431 *) shared_opcodes=false ;;
436 # Any other special object files needed ?
440 for f in config/bfin-parse.o config/bfin-lex-wrapper.o; do
441 case " $extra_objects " in
443 *) extra_objects="$extra_objects $f" ;;
449 if test $this_target = $target ; then
450 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
454 epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
459 for f in config/loongarch-parse.o config/loongarch-lex-wrapper.o; do
460 case " $extra_objects " in
462 *) extra_objects="$extra_objects $f" ;;
465 # --target=loongarch[32|64]-*-*. */
466 if test $this_target = $target ; then
467 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
478 f=config/m68k-parse.o
479 case " $extra_objects " in
481 *) extra_objects="$extra_objects $f" ;;
490 for f in itbl-parse.o itbl-lex-wrapper.o itbl-ops.o; do
491 case " $extra_objects " in
493 *) extra_objects="$extra_objects $f" ;;
503 # setup NDS32_LINUX_TOOLCHAIN definition
504 if test "linux" = $em; then
505 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 1,
506 [Define value for nds32_linux_toolchain])
508 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 0,
509 [Define default value for nds32_linux_toolchain])
512 # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
513 # based on arch_name.
514 AC_MSG_CHECKING(for default configuration of --with-arch)
515 if test "x${with_arch}" != x; then
517 v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
518 AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
519 [Define value for nds32_arch_name])
522 AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
526 AC_MSG_RESULT($with_arch)
528 # Decide features one by one.
529 AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
530 if test "x${enable_dx_regs}" = xyes; then
531 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
532 [Define value for nds32_dx_regs])
534 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
535 [Define default value for nds32_dx_regs])
537 AC_MSG_RESULT($enable_dx_regs)
539 AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
540 if test "x${enable_perf_ext}" = xno; then
541 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
542 [Define value for nds32_perf_ext])
544 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
545 [Define default value for nds32_perf_ext])
547 AC_MSG_RESULT($enable_perf_ext)
549 AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
550 if test "x${enable_perf_ext2}" = xno; then
551 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
552 [Define value for nds32_perf_ext2])
554 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
555 [Define default value for nds32_perf_ext2])
557 AC_MSG_RESULT($enable_perf_ext2)
559 AC_MSG_CHECKING(for default configuration of --enable-string-ext)
560 if test "x${enable_string_ext}" = xno; then
561 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
562 [Define value for nds32_string_ext])
564 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
565 [Define default value for nds32_string_ext])
567 AC_MSG_RESULT($enable_string_ext)
569 AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
570 if test "x${enable_audio_ext}" = xno; then
571 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
572 [Define value for nds32_audio_ext])
574 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
575 [Define default value for nds32_audio_ext])
577 AC_MSG_RESULT($enable_audio_ext)
579 AC_MSG_CHECKING(for default configuration of --enable-dsp-ext)
580 if test "x${enable_dsp_ext}" = xno; then
581 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 0,
582 [Define value for nds32_dsp_ext])
584 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 1,
585 [Define default value for nds32_dsp_ext])
587 AC_MSG_RESULT($enable_dsp_ext)
589 AC_MSG_CHECKING(for default configuration of --enable-zol-ext)
590 if test "x${enable_zol_ext}" = xno; then
591 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 0,
592 [Define value for nds32_zol_ext])
594 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 1,
595 [Define default value for nds32_zol_ext])
597 AC_MSG_RESULT($enable_zol_ext)
600 aarch64 | i386 | s390 | sparc)
601 if test $this_target = $target ; then
602 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
607 # --target=riscv[32|64]-*-*. */
608 if test $this_target = $target ; then
609 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
612 # --with-arch=<value>. The syntax of <value> is same as Gas option -march.
613 AC_MSG_CHECKING(for default configuration of --with-arch)
614 if test "x${with_arch}" != x; then
615 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ARCH_WITH_EXT, "$with_arch",
616 [Define default value for RISC-V -march.])
618 AC_MSG_RESULT($with_arch)
620 # --with-isa-spec=[2.2|20190608|20191213].
621 AC_MSG_CHECKING(for default configuration of --with-isa-spec)
622 if test "x${with_isa_spec}" != x; then
623 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ISA_SPEC, "$with_isa_spec",
624 [Define default value for RISC-V -misa-spec.])
626 AC_MSG_RESULT($with_isa_spec)
628 # --with-priv-spec=[1.9.1|1.10|1.11|1.12].
629 AC_MSG_CHECKING(for default configuration of --with-priv-spec)
630 if test "x${with_priv_spec}" != x; then
631 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_PRIV_SPEC, "$with_priv_spec",
632 [Define default value for RISC-V -mpriv-spec])
634 AC_MSG_RESULT($with_priv_spec)
638 f=config/rl78-parse.o
639 case " $extra_objects " in
641 *) extra_objects="$extra_objects $f" ;;
647 case " $extra_objects " in
649 *) extra_objects="$extra_objects $f" ;;
658 f=config/xtensa-relax.o
659 case " $extra_objects " in
661 *) extra_objects="$extra_objects $f" ;;
669 if test $using_cgen = yes ; then
671 case " $extra_objects " in
673 *) extra_objects="$extra_objects $f" ;;
677 # See if we really can support this configuration with the emulation code.
679 if test $this_target = $target ; then
687 case " $extra_objects " in
689 *) extra_objects="$extra_objects $f" ;;
693 # From target name and format, produce a list of supported emulations.
695 case ${generic_target}-${fmt} in
696 mips-*-*-*) case "$endian" in
697 big) emulation="mipsbelf mipslelf mipself" ;;
698 *) emulation="mipslelf mipsbelf mipself" ;;
700 # i386-pc-pe-coff != i386-pc-coff.
702 # Uncommenting the next line will turn on support for i386 AOUT
703 # for the default linux configuration
704 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
706 i386-*-aout) emulation="i386aout" ;;
707 i386-*-coff) emulation="i386coff" ;;
708 i386-*-elf) emulation="i386elf" ;;
710 # Always all formats. The first stated emulation becomes the default.
711 cris-*-*aout*) emulation="crisaout criself" ;;
712 cris-*-*) emulation="criself crisaout" ;;
715 emulations="$emulations $emulation"
719 if test ${ac_default_x86_relax_relocations} = unset; then
720 ac_default_x86_relax_relocations=1
722 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
723 $ac_default_x86_relax_relocations,
724 [Define to 1 if you want to generate x86 relax relocations by default.])
726 if test ${ac_default_elf_stt_common} = unset; then
727 ac_default_elf_stt_common=0
729 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
730 $ac_default_elf_stt_common,
731 [Define to 1 if you want to generate ELF common symbols with the
732 STT_COMMON type by default.])
734 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_BUILD_NOTES,
735 $ac_default_generate_build_notes,
736 [Define to 1 if you want to generate GNU Build attribute notes
737 by default, if none are contained in the input.])
739 if test ${ac_default_generate_x86_used_note} = unset; then
740 ac_default_generate_x86_used_note=0
742 AC_DEFINE_UNQUOTED(DEFAULT_X86_USED_NOTE,
743 $ac_default_generate_x86_used_note,
744 [Define to 1 if you want to generate GNU x86 used ISA and feature
745 properties by default.])
747 if test ${ac_default_generate_riscv_attr} = unset; then
748 ac_default_generate_riscv_attr=1
751 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ATTR,
752 $ac_default_generate_riscv_attr,
753 [Define to 1 if you want to generate RISC-V arch attribute by default.])
755 if test ${ac_default_mips_fix_loongson3_llsc} = unset; then
756 ac_default_mips_fix_loongson3_llsc=0
758 AC_DEFINE_UNQUOTED(DEFAULT_MIPS_FIX_LOONGSON3_LLSC,
759 $ac_default_mips_fix_loongson3_llsc,
760 [Define to 1 if you want to fix Loongson3 LLSC Errata by default.])
762 if test x$ac_default_compressed_debug_sections = xyes ; then
763 AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
766 AC_DEFINE_UNQUOTED(DEFAULT_COMPRESSED_DEBUG_ALGORITHM, $ac_default_compressed_debug_sections_algorithm,
767 [Default compression algorithm for --enable-compressed-debug-sections.])
769 # Turn on all targets if possible
770 if test ${all_targets} = "yes"; then
771 case ${target_cpu_type} in
773 case ${obj_format} in
775 emulations="$emulations i386coff i386elf"
778 emulations="$emulations i386aout i386elf"
781 emulations="$emulations i386aout i386coff"
786 case ${obj_format} in
788 emulations="$emulations i386coff i386elf"
791 emulations="$emulations i386aout i386elf"
794 emulations="$emulations i386aout i386coff"
801 # PE code has way too many macros tweaking behaviour
803 pe*) emulations="" ;;
806 # Assign floating point type. Most processors with FP support
807 # IEEE FP. On those that don't support FP at all, usually IEEE
809 case ${target_cpu} in
810 vax | pdp11 ) atof=vax ;;
814 case "${obj_format}" in
815 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
818 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
820 if test $using_cgen = yes ; then
821 case ${target_cpu} in
823 cgen_cpu_prefix=or1k ;;
824 *) cgen_cpu_prefix=${target_cpu} ;;
826 AC_SUBST(cgen_cpu_prefix)
827 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
831 dnl Make sure the desired support files exist.
834 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
835 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
838 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
839 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
842 # Some COFF configurations want these random other flags set.
843 case ${obj_format} in
845 case ${target_cpu_type} in
846 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
847 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
852 # Getting this done right is going to be a bitch. Each configuration specified
853 # with --enable-targets=... should be checked for environment, format, cpu
856 # For each configuration, the necessary object file support code must be linked
857 # in. This might be only one, it might be up to four. The necessary emulation
858 # code needs to be provided, too.
860 # And then there's "--enable-targets=all"....
862 # For now, just always do it for MIPS ELF configurations. Sigh.
864 formats="${obj_format}"
868 for em in . $emulations ; do
871 mipsbelf | mipslelf | mipself)
872 fmt=elf file=mipself ;;
880 formats="$formats $fmt"
881 emfiles="$emfiles config/e-$file.o"
882 EMULATIONS="$EMULATIONS &$em,"
886 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
887 for fmt in $formats ; do
889 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
890 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
891 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
892 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
893 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
894 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
896 extra_objects="$extra_objects config/obj-$fmt.o"
900 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
901 DEFAULT_EMULATION=`set . $emulations ; echo $2`
902 # e-mipself has more than one emulation per file, e-i386* has just one at the
903 # moment. If only one emulation is specified, then don't define
904 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
905 case "${obj_format}${emfiles}" in
907 extra_objects="$extra_objects $emfiles"
908 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
911 AC_SUBST(extra_objects)
912 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
913 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
914 [Default emulation.])
916 reject_dev_configs=yes
918 case ${reject_dev_configs}-${dev} in
920 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
924 AC_SUBST(target_cpu_type)
927 AC_SUBST(install_tooldir)
929 dnl AC_SUBST(emulation)
931 # do we need the opcodes library?
932 case "${need_opcodes}" in
934 OPCODES_LIB=../opcodes/libopcodes.la
938 AC_SUBST(OPCODES_LIB)
940 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
941 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
942 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
943 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
944 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
949 ALL_LINGUAS="es fi fr id ja ru rw sv tr uk zh_CN"
950 ZW_GNU_GETTEXT_SISTER_DIR
954 AM_CONDITIONAL(GENINSRC_NEVER, false)
957 AC_CHECK_HEADERS(memory.h sys/stat.h sys/types.h unistd.h)
959 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
960 # people who are not cross-compiling but are compiling cross-assemblers.
961 AC_MSG_CHECKING(whether compiling a cross-assembler)
962 if test "${host}" = "${target}"; then
966 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
968 AC_MSG_RESULT($cross_gas)
970 AC_CHECK_FUNCS(strsignal)
974 # do we need the math library?
975 case "${need_libm}" in
982 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
983 # enough, but on some of those systems, the assert macro relies on requoting
987 # On some systems, the system header files may not declare malloc, realloc,
988 # and free. There are places where gas needs these functions to have been
989 # declared -- such as when taking their addresses.
1001 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
1002 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
1003 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
1004 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
1005 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
1006 if test $gas_cv_decl_getopt_unistd_h = yes; then
1007 AC_DEFINE([HAVE_DECL_GETOPT], 1,
1008 [Is the prototype for getopt in <unistd.h> in the expected format?])
1011 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
1012 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
1014 AC_CHECK_DECLS([asprintf, mempcpy, stpcpy])
1018 # Link in zlib/zstd if we can. This allows us to write compressed debug sections.
1022 # Support for VMS timestamps via cross compile
1024 if test "$ac_cv_header_time_h" = yes; then
1025 GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
1028 if test "$ac_cv_header_sys_stat_h" = yes; then
1029 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
1030 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
1034 dnl Required for html, pdf, install-pdf and install-html targets.
1035 AC_SUBST(datarootdir)
1040 dnl This must come last.
1042 dnl We used to make symlinks to files in the source directory, but now
1043 dnl we just use the right name for .c files, and create .h files in
1044 dnl the build directory which include the right .h file. Make sure
1045 dnl the old symlinks don't exist, so that a reconfigure in an existing
1046 dnl directory behaves reasonably.
1048 AC_CONFIG_FILES(Makefile po/Makefile.in:po/Make-in)
1049 AC_CONFIG_COMMANDS([default],
1050 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
1051 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
1052 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
1053 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
1054 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
1055 if test "x$cgen_cpu_prefix" != x ; then
1056 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
1058 [target_cpu_type=${target_cpu_type}
1059 cgen_cpu_prefix=${cgen_cpu_prefix}
1060 obj_format=${obj_format}
1061 te_file=${te_file}])