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 "${enableval}" in
95 no) ac_default_x86_relax_relocations=0 ;;
98 # Decide if ELF assembler should generate common symbols with the
100 ac_default_elf_stt_common=unset
101 # Provide a configure time option to override our default.
102 AC_ARG_ENABLE(elf_stt_common,
103 AS_HELP_STRING([--enable-elf-stt-common],
104 [generate ELF common symbols with STT_COMMON type by default]),
105 [case "${enableval}" in
106 yes) ac_default_elf_stt_common=1 ;;
110 # Decide if the ELF assembler should default to generating
111 # GNU Build notes if none are provided by the input.
112 ac_default_generate_build_notes=0
113 # Provide a configuration option to override the default.
114 AC_ARG_ENABLE(generate_build_notes,
115 AS_HELP_STRING([--enable-generate-build-notes],
116 [generate GNU Build notes if none are provided by the input]),
117 [case "${enableval}" in
118 yes) ac_default_generate_build_notes=1 ;;
119 no) ac_default_generate_build_notes=0 ;;
122 # Decide if the MIPS assembler should default to enable MIPS fix Loongson3
124 ac_default_mips_fix_loongson3_llsc=unset
125 # Provide a configuration option to override the default.
126 AC_ARG_ENABLE(mips-fix-loongson3-llsc,
127 AS_HELP_STRING([--enable-mips-fix-loongson3-llsc],
128 [enable MIPS fix Loongson3 LLSC errata]),
129 [case "${enableval}" in
130 yes) ac_default_mips_fix_loongson3_llsc=1 ;;
131 no) ac_default_mips_fix_loongson3_llsc=0 ;;
134 # Decide if the x86 ELF assembler should default to generating GNU x86
135 # used ISA and feature properties.
136 ac_default_generate_x86_used_note=unset
137 # Provide a configuration option to override the default.
138 AC_ARG_ENABLE(x86-used-note,
139 AS_HELP_STRING([--enable-x86-used-note],
140 [generate GNU x86 used ISA and feature properties]),
141 [case "${enableval}" in
142 yes) ac_default_generate_x86_used_note=1 ;;
143 no) ac_default_generate_x86_used_note=0 ;;
146 # Decide if the RISC-V ELF assembler should default to generating attribute.
147 ac_default_generate_riscv_attr=unset
148 # Provide a configuration option to override the default.
149 AC_ARG_ENABLE(default-riscv-attribute,
150 AS_HELP_STRING([--enable-default-riscv-attribute],
151 [generate RISC-V arch attribute by default]),
152 [case "${enableval}" in
153 yes) ac_default_generate_riscv_attr=1 ;;
154 no) ac_default_generate_riscv_attr=0 ;;
161 # Generate a header file
162 AC_CONFIG_HEADERS(config.h:config.in)
164 dnl Option --with-cpu=TYPE allows configure type control of the default
165 dnl cpu type within the assembler. Currently only the ARC target
166 dnl supports this feature, but others may be added in the future.
168 AS_HELP_STRING([--with-cpu=CPU],
169 [default cpu variant is CPU (currently only supported on ARC)]),
170 [AC_DEFINE_UNQUOTED(TARGET_WITH_CPU,
172 [Target specific CPU.])],
176 AH_VERBATIM([00_CONFIG_H_CHECK],
177 [/* Check that config.h is #included before system headers
178 (this works only for glibc, but that should be enough). */
179 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
180 # error config.h must be #included before system headers
182 #define __CONFIG_H__ 1])
184 # If we are on a DOS filesystem, we must use gdb.ini rather than
187 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
189 AC_CONFIG_FILES(gdb.ini:gdbinit.in)
193 AC_CONFIG_FILES(.gdbinit:gdbinit.in)
198 #We need this for the host.
203 # Makefile target for installing gas in $(tooldir)/bin.
204 install_tooldir=install-exec-tooldir
208 if test -n "$enable_targets" ; then
209 for t in `echo $enable_targets | sed 's/,/ /g'`; do
210 if test $t = "all"; then
214 result=`$ac_config_sub $t 2>/dev/null`
215 if test -n "$result" ; then
216 canon_targets="$canon_targets $result"
218 # # Permit "all", etc. We don't support it yet though.
219 # canon_targets="$canon_targets $t"
222 GAS_UNIQ(canon_targets)
227 for this_target in $target $canon_targets ; do
230 . ${srcdir}/configure.tgt
232 case ${target_cpu} in
234 AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
235 [Default CRIS architecture.])
239 if test ${this_target} = $target ; then
240 target_cpu_type=${cpu_type}
241 elif test ${target_cpu_type} != ${cpu_type} ; then
245 generic_target=${cpu_type}-${target_vendor}-${target_os}
246 case ${generic_target} in
249 AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
252 i386-*-linux-* | x86_64-*-linux-*)
253 if test ${this_target} = $target \
254 && test ${ac_default_generate_x86_used_note} = unset; then
255 ac_default_generate_x86_used_note=1
260 | x86_64-*-solaris2 \
261 | i386-*-solaris2.[[0-9]] \
262 | i386-*-solaris2.1[[01]] \
263 | x86_64-*-solaris2.1[[01]])
264 if test ${this_target} = $target \
265 && test ${ac_default_x86_relax_relocations} = unset; then
266 ac_default_x86_relax_relocations=0
278 AC_DEFINE(AIX_WEAK_SUPPORT, 1,
279 [Define if using AIX 5.2 value for C_WEAKEXT.])
282 if test ${this_target} = $target; then
283 AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
284 [Define if default target is PowerPC Solaris.])
286 if test x${endian} = xbig; then
287 AC_MSG_ERROR(Solaris must be configured little endian)
292 if test ${this_target} = $target ; then
294 if test x${endian} = xbig; then
296 elif test x${endian} = xlittle; then
299 if test x${endian_def} != x; then
300 AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
301 [Define as 1 if big endian.])
305 # Other random stuff.
309 # Set mips_cpu to the name of the default CPU.
310 case ${target_cpu} in
311 mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
314 mipsisa32 | mipsisa32el)
317 mipsisa32r2 | mipsisa32r2el)
320 mipsisa32r3 | mipsisa32r3el)
323 mipsisa32r5 | mipsisa32r5el)
326 mipsisa32r6 | mipsisa32r6el)
329 mipsisa64 | mipsisa64el)
332 mipsisa64r2 | mipsisa64r2el)
335 mipsisa64r3 | mipsisa64r3el)
338 mipsisa64r5 | mipsisa64r5el)
341 mipsisa64r6 | mipsisa64r6el)
344 mipstx39 | mipstx39el)
347 mips64vr | mips64vrel)
350 mipsisa32r2* | mipsisa64r2*)
352 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
355 mipsisa32r6* | mipsisa64r6*)
357 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
360 mips64* | mipsisa64* | mipsisa32*)
362 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
367 mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
371 AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
374 # See whether it's appropriate to set EF_MIPS_ABI_O32 for o32
375 # binaries. It's a GNU extension that some OSes don't understand.
378 use_ef_mips_abi_o32=0
381 use_ef_mips_abi_o32=1
384 # If Vendor is IMG, then MIPSr6 is used
390 # Decide whether to generate 32-bit or 64-bit code by default.
391 # Used to resolve -march=from-abi when an embedded ABI is selected.
393 mips64*-*-* | mipsisa64*-*-*)
400 # Decide which ABI to target by default.
402 mips64*-openbsd* | mips64*-linux-gnuabi64)
403 mips_default_abi=N64_ABI
405 mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
406 | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
407 mips_default_abi=N32_ABI
409 mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
410 mips_default_abi=O32_ABI
413 mips_default_abi=NO_ABI
416 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
417 [Default CPU for MIPS targets. ])
418 AC_DEFINE_UNQUOTED(USE_EF_MIPS_ABI_O32, $use_ef_mips_abi_o32,
419 [Allow use of EF_MIPS_ABI_O32 on MIPS targets. ])
420 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
421 [Generate 64-bit code by default on MIPS targets. ])
422 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
423 [Choose a default ABI for MIPS targets. ])
427 # Do we need the opcodes library?
429 vax | tic30 | i386 | arm)
435 case "${enable_shared}" in
436 yes) shared_opcodes=true ;;
437 *opcodes*) shared_opcodes=true ;;
438 *) shared_opcodes=false ;;
443 # Any other special object files needed ?
447 for f in config/bfin-parse.o config/bfin-lex-wrapper.o; do
448 case " $extra_objects " in
450 *) extra_objects="$extra_objects $f" ;;
456 if test $this_target = $target ; then
457 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
460 epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
465 for f in config/loongarch-parse.o config/loongarch-lex-wrapper.o; do
466 case " $extra_objects " in
468 *) extra_objects="$extra_objects $f" ;;
471 # --target=loongarch[32|64]-*-*. */
472 if test $this_target = $target ; then
473 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
484 for f in config/kvx-parse.o; do
485 case " $extra_objects " in
487 *) extra_objects="$extra_objects $f" ;;
492 f=config/m68k-parse.o
493 case " $extra_objects " in
495 *) extra_objects="$extra_objects $f" ;;
504 for f in itbl-parse.o itbl-lex-wrapper.o itbl-ops.o; do
505 case " $extra_objects " in
507 *) extra_objects="$extra_objects $f" ;;
517 # setup NDS32_LINUX_TOOLCHAIN definition
518 if test "linux" = $em; then
519 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 1,
520 [Define value for nds32_linux_toolchain])
522 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 0,
523 [Define default value for nds32_linux_toolchain])
526 # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
527 # based on arch_name.
528 AC_MSG_CHECKING(for default configuration of --with-arch)
529 if test "x${with_arch}" != x; then
531 v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
532 AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
533 [Define value for nds32_arch_name])
536 AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
540 AC_MSG_RESULT($with_arch)
542 # Decide features one by one.
543 AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
544 if test "x${enable_dx_regs}" = xyes; then
545 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
546 [Define value for nds32_dx_regs])
548 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
549 [Define default value for nds32_dx_regs])
551 AC_MSG_RESULT($enable_dx_regs)
553 AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
554 if test "x${enable_perf_ext}" = xno; then
555 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
556 [Define value for nds32_perf_ext])
558 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
559 [Define default value for nds32_perf_ext])
561 AC_MSG_RESULT($enable_perf_ext)
563 AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
564 if test "x${enable_perf_ext2}" = xno; then
565 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
566 [Define value for nds32_perf_ext2])
568 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
569 [Define default value for nds32_perf_ext2])
571 AC_MSG_RESULT($enable_perf_ext2)
573 AC_MSG_CHECKING(for default configuration of --enable-string-ext)
574 if test "x${enable_string_ext}" = xno; then
575 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
576 [Define value for nds32_string_ext])
578 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
579 [Define default value for nds32_string_ext])
581 AC_MSG_RESULT($enable_string_ext)
583 AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
584 if test "x${enable_audio_ext}" = xno; then
585 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
586 [Define value for nds32_audio_ext])
588 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
589 [Define default value for nds32_audio_ext])
591 AC_MSG_RESULT($enable_audio_ext)
593 AC_MSG_CHECKING(for default configuration of --enable-dsp-ext)
594 if test "x${enable_dsp_ext}" = xno; then
595 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 0,
596 [Define value for nds32_dsp_ext])
598 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 1,
599 [Define default value for nds32_dsp_ext])
601 AC_MSG_RESULT($enable_dsp_ext)
603 AC_MSG_CHECKING(for default configuration of --enable-zol-ext)
604 if test "x${enable_zol_ext}" = xno; then
605 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 0,
606 [Define value for nds32_zol_ext])
608 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 1,
609 [Define default value for nds32_zol_ext])
611 AC_MSG_RESULT($enable_zol_ext)
614 aarch64 | i386 | s390 | sparc)
615 if test $this_target = $target ; then
616 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
621 # --target=riscv[32|64]-*-*. */
622 if test $this_target = $target ; then
623 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
626 # --with-arch=<value>. The syntax of <value> is same as Gas option -march.
627 AC_MSG_CHECKING(for default configuration of --with-arch)
628 if test "x${with_arch}" != x; then
629 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ARCH_WITH_EXT, "$with_arch",
630 [Define default value for RISC-V -march.])
632 AC_MSG_RESULT($with_arch)
634 # --with-isa-spec=[2.2|20190608|20191213].
635 AC_MSG_CHECKING(for default configuration of --with-isa-spec)
636 if test "x${with_isa_spec}" != x; then
637 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ISA_SPEC, "$with_isa_spec",
638 [Define default value for RISC-V -misa-spec.])
640 AC_MSG_RESULT($with_isa_spec)
642 # --with-priv-spec=[1.9.1|1.10|1.11|1.12].
643 AC_MSG_CHECKING(for default configuration of --with-priv-spec)
644 if test "x${with_priv_spec}" != x; then
645 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_PRIV_SPEC, "$with_priv_spec",
646 [Define default value for RISC-V -mpriv-spec])
648 AC_MSG_RESULT($with_priv_spec)
652 f=config/rl78-parse.o
653 case " $extra_objects " in
655 *) extra_objects="$extra_objects $f" ;;
661 case " $extra_objects " in
663 *) extra_objects="$extra_objects $f" ;;
672 f=config/xtensa-relax.o
673 case " $extra_objects " in
675 *) extra_objects="$extra_objects $f" ;;
683 if test $using_cgen = yes ; then
685 case " $extra_objects " in
687 *) extra_objects="$extra_objects $f" ;;
691 # See if we really can support this configuration with the emulation code.
693 if test $this_target = $target ; then
701 case " $extra_objects " in
703 *) extra_objects="$extra_objects $f" ;;
707 # From target name and format, produce a list of supported emulations.
709 case ${generic_target}-${fmt} in
710 mips-*-*-*) case "$endian" in
711 big) emulation="mipsbelf mipslelf mipself" ;;
712 *) emulation="mipslelf mipsbelf mipself" ;;
714 # i386-pc-pe-coff != i386-pc-coff.
716 # Uncommenting the next line will turn on support for i386 AOUT
717 # for the default linux configuration
718 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
720 i386-*-aout) emulation="i386aout" ;;
721 i386-*-coff) emulation="i386coff" ;;
722 i386-*-elf) emulation="i386elf" ;;
724 # Always all formats. The first stated emulation becomes the default.
725 cris-*-*aout*) emulation="crisaout criself" ;;
726 cris-*-*) emulation="criself crisaout" ;;
729 emulations="$emulations $emulation"
733 if test ${ac_default_x86_relax_relocations} = unset; then
734 ac_default_x86_relax_relocations=1
736 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
737 $ac_default_x86_relax_relocations,
738 [Define to 1 if you want to generate x86 relax relocations by default.])
740 if test ${ac_default_elf_stt_common} = unset; then
741 ac_default_elf_stt_common=0
743 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
744 $ac_default_elf_stt_common,
745 [Define to 1 if you want to generate ELF common symbols with the
746 STT_COMMON type by default.])
748 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_BUILD_NOTES,
749 $ac_default_generate_build_notes,
750 [Define to 1 if you want to generate GNU Build attribute notes
751 by default, if none are contained in the input.])
753 if test ${ac_default_generate_x86_used_note} = unset; then
754 ac_default_generate_x86_used_note=0
756 AC_DEFINE_UNQUOTED(DEFAULT_X86_USED_NOTE,
757 $ac_default_generate_x86_used_note,
758 [Define to 1 if you want to generate GNU x86 used ISA and feature
759 properties by default.])
761 if test ${ac_default_generate_riscv_attr} = unset; then
762 ac_default_generate_riscv_attr=1
765 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ATTR,
766 $ac_default_generate_riscv_attr,
767 [Define to 1 if you want to generate RISC-V arch attribute by default.])
769 if test ${ac_default_mips_fix_loongson3_llsc} = unset; then
770 ac_default_mips_fix_loongson3_llsc=0
772 AC_DEFINE_UNQUOTED(DEFAULT_MIPS_FIX_LOONGSON3_LLSC,
773 $ac_default_mips_fix_loongson3_llsc,
774 [Define to 1 if you want to fix Loongson3 LLSC Errata by default.])
776 if test x$ac_default_compressed_debug_sections = xyes ; then
777 AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
780 AC_DEFINE_UNQUOTED(DEFAULT_COMPRESSED_DEBUG_ALGORITHM, $ac_default_compressed_debug_sections_algorithm,
781 [Default compression algorithm for --enable-compressed-debug-sections.])
783 # Turn on all targets if possible
784 if test ${all_targets} = "yes"; then
785 case ${target_cpu_type} in
787 case ${obj_format} in
789 emulations="$emulations i386coff i386elf"
792 emulations="$emulations i386aout i386elf"
795 emulations="$emulations i386aout i386coff"
800 case ${obj_format} in
802 emulations="$emulations i386coff i386elf"
805 emulations="$emulations i386aout i386elf"
808 emulations="$emulations i386aout i386coff"
815 # PE code has way too many macros tweaking behaviour
817 pe*) emulations="" ;;
820 # Assign floating point type. Most processors with FP support
821 # IEEE FP. On those that don't support FP at all, usually IEEE
823 case ${target_cpu} in
824 vax | pdp11 ) atof=vax ;;
828 case "${obj_format}" in
829 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
832 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
834 if test $using_cgen = yes ; then
835 case ${target_cpu} in
837 cgen_cpu_prefix=or1k ;;
838 *) cgen_cpu_prefix=${target_cpu} ;;
840 AC_SUBST(cgen_cpu_prefix)
841 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
845 dnl Make sure the desired support files exist.
848 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
849 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
852 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
853 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
856 # Some COFF configurations want these random other flags set.
857 case ${obj_format} in
859 case ${target_cpu_type} in
860 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
861 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
866 # Getting this done right is going to be a bitch. Each configuration specified
867 # with --enable-targets=... should be checked for environment, format, cpu
870 # For each configuration, the necessary object file support code must be linked
871 # in. This might be only one, it might be up to four. The necessary emulation
872 # code needs to be provided, too.
874 # And then there's "--enable-targets=all"....
876 # For now, just always do it for MIPS ELF configurations. Sigh.
878 formats="${obj_format}"
882 for em in . $emulations ; do
885 mipsbelf | mipslelf | mipself)
886 fmt=elf file=mipself ;;
894 formats="$formats $fmt"
895 emfiles="$emfiles config/e-$file.o"
896 EMULATIONS="$EMULATIONS &$em,"
900 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
901 for fmt in $formats ; do
903 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
904 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
905 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
906 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
907 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
908 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
910 extra_objects="$extra_objects config/obj-$fmt.o"
914 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
915 DEFAULT_EMULATION=`set . $emulations ; echo $2`
916 # e-mipself has more than one emulation per file, e-i386* has just one at the
917 # moment. If only one emulation is specified, then don't define
918 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
919 case "${obj_format}${emfiles}" in
921 extra_objects="$extra_objects $emfiles"
922 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
925 AC_SUBST(extra_objects)
926 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
927 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
928 [Default emulation.])
930 reject_dev_configs=yes
932 case ${reject_dev_configs}-${dev} in
934 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
938 AC_SUBST(target_cpu_type)
941 AC_SUBST(install_tooldir)
943 dnl AC_SUBST(emulation)
945 # do we need the opcodes library?
946 case "${need_opcodes}" in
948 OPCODES_LIB=../opcodes/libopcodes.la
952 AC_SUBST(OPCODES_LIB)
954 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
955 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
956 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
957 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
958 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
963 ALL_LINGUAS="es fi fr id ja ru rw sv tr uk zh_CN"
964 ZW_GNU_GETTEXT_SISTER_DIR
968 AM_CONDITIONAL(GENINSRC_NEVER, false)
971 AC_CHECK_HEADERS(memory.h sys/stat.h sys/types.h unistd.h)
973 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
974 # people who are not cross-compiling but are compiling cross-assemblers.
975 AC_MSG_CHECKING(whether compiling a cross-assembler)
976 if test "${host}" = "${target}"; then
980 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
982 AC_MSG_RESULT($cross_gas)
984 AC_CHECK_FUNCS(strsignal)
988 # do we need the math library?
989 case "${need_libm}" in
996 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
997 # enough, but on some of those systems, the assert macro relies on requoting
1001 # On some systems, the system header files may not declare malloc, realloc,
1002 # and free. There are places where gas needs these functions to have been
1003 # declared -- such as when taking their addresses.
1005 #ifdef HAVE_MEMORY_H
1010 #ifdef HAVE_UNISTD_H
1015 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
1016 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
1017 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
1018 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
1019 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
1020 if test $gas_cv_decl_getopt_unistd_h = yes; then
1021 AC_DEFINE([HAVE_DECL_GETOPT], 1,
1022 [Is the prototype for getopt in <unistd.h> in the expected format?])
1025 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
1026 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
1028 AC_CHECK_DECLS([asprintf, mempcpy, stpcpy])
1032 # Link in zlib/zstd if we can. This allows us to write compressed debug sections.
1036 # Support for VMS timestamps via cross compile
1038 if test "$ac_cv_header_time_h" = yes; then
1039 GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
1042 if test "$ac_cv_header_sys_stat_h" = yes; then
1043 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
1044 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
1048 dnl Required for html, pdf, install-pdf and install-html targets.
1049 AC_SUBST(datarootdir)
1054 dnl This must come last.
1056 dnl We used to make symlinks to files in the source directory, but now
1057 dnl we just use the right name for .c files, and create .h files in
1058 dnl the build directory which include the right .h file. Make sure
1059 dnl the old symlinks don't exist, so that a reconfigure in an existing
1060 dnl directory behaves reasonably.
1062 AC_CONFIG_FILES(Makefile po/Makefile.in:po/Make-in)
1063 AC_CONFIG_COMMANDS([default],
1064 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
1065 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
1066 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
1067 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
1068 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
1069 if test "x$cgen_cpu_prefix" != x ; then
1070 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
1072 [target_cpu_type=${target_cpu_type}
1073 cgen_cpu_prefix=${cgen_cpu_prefix}
1074 obj_format=${obj_format}
1075 te_file=${te_file}])