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
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($target_cpu isn't a supported MIPS CPU name)
375 # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
376 # binaries. It's a GNU extension that some OSes don't understand.
385 # Decide whether to generate 32-bit or 64-bit code by default.
386 # Used to resolve -march=from-abi when an embedded ABI is selected.
388 mips64*-*-* | mipsisa64*-*-*)
395 # Decide which ABI to target by default.
397 mips64*-openbsd* | mips64*-linux-gnuabi64)
398 mips_default_abi=N64_ABI
400 mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
401 | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
402 mips_default_abi=N32_ABI
404 mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
405 mips_default_abi=O32_ABI
408 mips_default_abi=NO_ABI
411 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
412 [Default CPU for MIPS targets. ])
413 AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
414 [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
415 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
416 [Generate 64-bit code by default on MIPS targets. ])
417 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
418 [Choose a default ABI for MIPS targets. ])
422 # Do we need the opcodes library?
424 vax | tic30 | i386 | arm)
430 case "${enable_shared}" in
431 yes) shared_opcodes=true ;;
432 *opcodes*) shared_opcodes=true ;;
433 *) shared_opcodes=false ;;
438 # Any other special object files needed ?
442 for f in config/bfin-parse.o config/bfin-lex-wrapper.o; do
443 case " $extra_objects " in
445 *) extra_objects="$extra_objects $f" ;;
451 if test $this_target = $target ; then
452 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
455 epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
460 for f in config/loongarch-parse.o config/loongarch-lex-wrapper.o; do
461 case " $extra_objects " in
463 *) extra_objects="$extra_objects $f" ;;
466 # --target=loongarch[32|64]-*-*. */
467 if test $this_target = $target ; then
468 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
479 f=config/m68k-parse.o
480 case " $extra_objects " in
482 *) extra_objects="$extra_objects $f" ;;
491 for f in itbl-parse.o itbl-lex-wrapper.o itbl-ops.o; do
492 case " $extra_objects " in
494 *) extra_objects="$extra_objects $f" ;;
504 # setup NDS32_LINUX_TOOLCHAIN definition
505 if test "linux" = $em; then
506 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 1,
507 [Define value for nds32_linux_toolchain])
509 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 0,
510 [Define default value for nds32_linux_toolchain])
513 # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
514 # based on arch_name.
515 AC_MSG_CHECKING(for default configuration of --with-arch)
516 if test "x${with_arch}" != x; then
518 v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
519 AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
520 [Define value for nds32_arch_name])
523 AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
527 AC_MSG_RESULT($with_arch)
529 # Decide features one by one.
530 AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
531 if test "x${enable_dx_regs}" = xyes; then
532 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
533 [Define value for nds32_dx_regs])
535 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
536 [Define default value for nds32_dx_regs])
538 AC_MSG_RESULT($enable_dx_regs)
540 AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
541 if test "x${enable_perf_ext}" = xno; then
542 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
543 [Define value for nds32_perf_ext])
545 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
546 [Define default value for nds32_perf_ext])
548 AC_MSG_RESULT($enable_perf_ext)
550 AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
551 if test "x${enable_perf_ext2}" = xno; then
552 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
553 [Define value for nds32_perf_ext2])
555 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
556 [Define default value for nds32_perf_ext2])
558 AC_MSG_RESULT($enable_perf_ext2)
560 AC_MSG_CHECKING(for default configuration of --enable-string-ext)
561 if test "x${enable_string_ext}" = xno; then
562 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
563 [Define value for nds32_string_ext])
565 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
566 [Define default value for nds32_string_ext])
568 AC_MSG_RESULT($enable_string_ext)
570 AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
571 if test "x${enable_audio_ext}" = xno; then
572 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
573 [Define value for nds32_audio_ext])
575 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
576 [Define default value for nds32_audio_ext])
578 AC_MSG_RESULT($enable_audio_ext)
580 AC_MSG_CHECKING(for default configuration of --enable-dsp-ext)
581 if test "x${enable_dsp_ext}" = xno; then
582 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 0,
583 [Define value for nds32_dsp_ext])
585 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 1,
586 [Define default value for nds32_dsp_ext])
588 AC_MSG_RESULT($enable_dsp_ext)
590 AC_MSG_CHECKING(for default configuration of --enable-zol-ext)
591 if test "x${enable_zol_ext}" = xno; then
592 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 0,
593 [Define value for nds32_zol_ext])
595 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 1,
596 [Define default value for nds32_zol_ext])
598 AC_MSG_RESULT($enable_zol_ext)
601 aarch64 | i386 | s390 | sparc)
602 if test $this_target = $target ; then
603 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
608 # --target=riscv[32|64]-*-*. */
609 if test $this_target = $target ; then
610 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
613 # --with-arch=<value>. The syntax of <value> is same as Gas option -march.
614 AC_MSG_CHECKING(for default configuration of --with-arch)
615 if test "x${with_arch}" != x; then
616 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ARCH_WITH_EXT, "$with_arch",
617 [Define default value for RISC-V -march.])
619 AC_MSG_RESULT($with_arch)
621 # --with-isa-spec=[2.2|20190608|20191213].
622 AC_MSG_CHECKING(for default configuration of --with-isa-spec)
623 if test "x${with_isa_spec}" != x; then
624 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ISA_SPEC, "$with_isa_spec",
625 [Define default value for RISC-V -misa-spec.])
627 AC_MSG_RESULT($with_isa_spec)
629 # --with-priv-spec=[1.9.1|1.10|1.11|1.12].
630 AC_MSG_CHECKING(for default configuration of --with-priv-spec)
631 if test "x${with_priv_spec}" != x; then
632 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_PRIV_SPEC, "$with_priv_spec",
633 [Define default value for RISC-V -mpriv-spec])
635 AC_MSG_RESULT($with_priv_spec)
639 f=config/rl78-parse.o
640 case " $extra_objects " in
642 *) extra_objects="$extra_objects $f" ;;
648 case " $extra_objects " in
650 *) extra_objects="$extra_objects $f" ;;
659 f=config/xtensa-relax.o
660 case " $extra_objects " in
662 *) extra_objects="$extra_objects $f" ;;
670 if test $using_cgen = yes ; then
672 case " $extra_objects " in
674 *) extra_objects="$extra_objects $f" ;;
678 # See if we really can support this configuration with the emulation code.
680 if test $this_target = $target ; then
688 case " $extra_objects " in
690 *) extra_objects="$extra_objects $f" ;;
694 # From target name and format, produce a list of supported emulations.
696 case ${generic_target}-${fmt} in
697 mips-*-*-*) case "$endian" in
698 big) emulation="mipsbelf mipslelf mipself" ;;
699 *) emulation="mipslelf mipsbelf mipself" ;;
701 # i386-pc-pe-coff != i386-pc-coff.
703 # Uncommenting the next line will turn on support for i386 AOUT
704 # for the default linux configuration
705 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
707 i386-*-aout) emulation="i386aout" ;;
708 i386-*-coff) emulation="i386coff" ;;
709 i386-*-elf) emulation="i386elf" ;;
711 # Always all formats. The first stated emulation becomes the default.
712 cris-*-*aout*) emulation="crisaout criself" ;;
713 cris-*-*) emulation="criself crisaout" ;;
716 emulations="$emulations $emulation"
720 if test ${ac_default_x86_relax_relocations} = unset; then
721 ac_default_x86_relax_relocations=1
723 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
724 $ac_default_x86_relax_relocations,
725 [Define to 1 if you want to generate x86 relax relocations by default.])
727 if test ${ac_default_elf_stt_common} = unset; then
728 ac_default_elf_stt_common=0
730 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
731 $ac_default_elf_stt_common,
732 [Define to 1 if you want to generate ELF common symbols with the
733 STT_COMMON type by default.])
735 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_BUILD_NOTES,
736 $ac_default_generate_build_notes,
737 [Define to 1 if you want to generate GNU Build attribute notes
738 by default, if none are contained in the input.])
740 if test ${ac_default_generate_x86_used_note} = unset; then
741 ac_default_generate_x86_used_note=0
743 AC_DEFINE_UNQUOTED(DEFAULT_X86_USED_NOTE,
744 $ac_default_generate_x86_used_note,
745 [Define to 1 if you want to generate GNU x86 used ISA and feature
746 properties by default.])
748 if test ${ac_default_generate_riscv_attr} = unset; then
749 ac_default_generate_riscv_attr=1
752 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ATTR,
753 $ac_default_generate_riscv_attr,
754 [Define to 1 if you want to generate RISC-V arch attribute by default.])
756 if test ${ac_default_mips_fix_loongson3_llsc} = unset; then
757 ac_default_mips_fix_loongson3_llsc=0
759 AC_DEFINE_UNQUOTED(DEFAULT_MIPS_FIX_LOONGSON3_LLSC,
760 $ac_default_mips_fix_loongson3_llsc,
761 [Define to 1 if you want to fix Loongson3 LLSC Errata by default.])
763 if test x$ac_default_compressed_debug_sections = xyes ; then
764 AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
767 AC_DEFINE_UNQUOTED(DEFAULT_COMPRESSED_DEBUG_ALGORITHM, $ac_default_compressed_debug_sections_algorithm,
768 [Default compression algorithm for --enable-compressed-debug-sections.])
770 # Turn on all targets if possible
771 if test ${all_targets} = "yes"; then
772 case ${target_cpu_type} in
774 case ${obj_format} in
776 emulations="$emulations i386coff i386elf"
779 emulations="$emulations i386aout i386elf"
782 emulations="$emulations i386aout i386coff"
787 case ${obj_format} in
789 emulations="$emulations i386coff i386elf"
792 emulations="$emulations i386aout i386elf"
795 emulations="$emulations i386aout i386coff"
802 # PE code has way too many macros tweaking behaviour
804 pe*) emulations="" ;;
807 # Assign floating point type. Most processors with FP support
808 # IEEE FP. On those that don't support FP at all, usually IEEE
810 case ${target_cpu} in
811 vax | pdp11 ) atof=vax ;;
815 case "${obj_format}" in
816 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
819 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
821 if test $using_cgen = yes ; then
822 case ${target_cpu} in
824 cgen_cpu_prefix=or1k ;;
825 *) cgen_cpu_prefix=${target_cpu} ;;
827 AC_SUBST(cgen_cpu_prefix)
828 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
832 dnl Make sure the desired support files exist.
835 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
836 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
839 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
840 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
843 # Some COFF configurations want these random other flags set.
844 case ${obj_format} in
846 case ${target_cpu_type} in
847 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
848 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
853 # Getting this done right is going to be a bitch. Each configuration specified
854 # with --enable-targets=... should be checked for environment, format, cpu
857 # For each configuration, the necessary object file support code must be linked
858 # in. This might be only one, it might be up to four. The necessary emulation
859 # code needs to be provided, too.
861 # And then there's "--enable-targets=all"....
863 # For now, just always do it for MIPS ELF configurations. Sigh.
865 formats="${obj_format}"
869 for em in . $emulations ; do
872 mipsbelf | mipslelf | mipself)
873 fmt=elf file=mipself ;;
881 formats="$formats $fmt"
882 emfiles="$emfiles config/e-$file.o"
883 EMULATIONS="$EMULATIONS &$em,"
887 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
888 for fmt in $formats ; do
890 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
891 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
892 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
893 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
894 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
895 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
897 extra_objects="$extra_objects config/obj-$fmt.o"
901 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
902 DEFAULT_EMULATION=`set . $emulations ; echo $2`
903 # e-mipself has more than one emulation per file, e-i386* has just one at the
904 # moment. If only one emulation is specified, then don't define
905 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
906 case "${obj_format}${emfiles}" in
908 extra_objects="$extra_objects $emfiles"
909 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
912 AC_SUBST(extra_objects)
913 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
914 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
915 [Default emulation.])
917 reject_dev_configs=yes
919 case ${reject_dev_configs}-${dev} in
921 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
925 AC_SUBST(target_cpu_type)
928 AC_SUBST(install_tooldir)
930 dnl AC_SUBST(emulation)
932 # do we need the opcodes library?
933 case "${need_opcodes}" in
935 OPCODES_LIB=../opcodes/libopcodes.la
939 AC_SUBST(OPCODES_LIB)
941 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
942 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
943 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
944 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
945 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
950 ALL_LINGUAS="es fi fr id ja ru rw sv tr uk zh_CN"
951 ZW_GNU_GETTEXT_SISTER_DIR
955 AM_CONDITIONAL(GENINSRC_NEVER, false)
958 AC_CHECK_HEADERS(memory.h sys/stat.h sys/types.h unistd.h)
960 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
961 # people who are not cross-compiling but are compiling cross-assemblers.
962 AC_MSG_CHECKING(whether compiling a cross-assembler)
963 if test "${host}" = "${target}"; then
967 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
969 AC_MSG_RESULT($cross_gas)
971 AC_CHECK_FUNCS(strsignal)
975 # do we need the math library?
976 case "${need_libm}" in
983 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
984 # enough, but on some of those systems, the assert macro relies on requoting
988 # On some systems, the system header files may not declare malloc, realloc,
989 # and free. There are places where gas needs these functions to have been
990 # declared -- such as when taking their addresses.
1002 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
1003 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
1004 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
1005 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
1006 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
1007 if test $gas_cv_decl_getopt_unistd_h = yes; then
1008 AC_DEFINE([HAVE_DECL_GETOPT], 1,
1009 [Is the prototype for getopt in <unistd.h> in the expected format?])
1012 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
1013 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
1015 AC_CHECK_DECLS([asprintf, mempcpy, stpcpy])
1019 # Link in zlib/zstd if we can. This allows us to write compressed debug sections.
1023 # Support for VMS timestamps via cross compile
1025 if test "$ac_cv_header_time_h" = yes; then
1026 GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
1029 if test "$ac_cv_header_sys_stat_h" = yes; then
1030 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
1031 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
1035 dnl Required for html, pdf, install-pdf and install-html targets.
1036 AC_SUBST(datarootdir)
1041 dnl This must come last.
1043 dnl We used to make symlinks to files in the source directory, but now
1044 dnl we just use the right name for .c files, and create .h files in
1045 dnl the build directory which include the right .h file. Make sure
1046 dnl the old symlinks don't exist, so that a reconfigure in an existing
1047 dnl directory behaves reasonably.
1049 AC_CONFIG_FILES(Makefile po/Makefile.in:po/Make-in)
1050 AC_CONFIG_COMMANDS([default],
1051 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
1052 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
1053 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
1054 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
1055 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
1056 if test "x$cgen_cpu_prefix" != x ; then
1057 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
1059 [target_cpu_type=${target_cpu_type}
1060 cgen_cpu_prefix=${cgen_cpu_prefix}
1061 obj_format=${obj_format}
1062 te_file=${te_file}])