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) 2012-2022 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 ,"${enableval}", in
74 ,yes, | ,all, | *,gas,*) ac_default_compressed_debug_sections=yes ;;
75 ,no, | ,none,) ac_default_compressed_debug_sections=no ;;
76 *) ac_default_compressed_debug_sections=unset ;;
80 # Decide if x86 assembler should generate relax relocations.
81 ac_default_x86_relax_relocations=unset
82 # Provide a configure time option to override our default.
83 AC_ARG_ENABLE(x86_relax_relocations,
84 AS_HELP_STRING([--enable-x86-relax-relocations],
85 [generate x86 relax relocations by default]),
86 [case "${enableval}" in
87 no) ac_default_x86_relax_relocations=0 ;;
90 # Decide if ELF assembler should generate common symbols with the
92 ac_default_elf_stt_common=unset
93 # Provide a configure time option to override our default.
94 AC_ARG_ENABLE(elf_stt_common,
95 AS_HELP_STRING([--enable-elf-stt-common],
96 [generate ELF common symbols with STT_COMMON type by default]),
97 [case "${enableval}" in
98 yes) ac_default_elf_stt_common=1 ;;
102 # Decide if the ELF assembler should default to generating
103 # GNU Build notes if none are provided by the input.
104 ac_default_generate_build_notes=0
105 # Provide a configuration option to override the default.
106 AC_ARG_ENABLE(generate_build_notes,
107 AS_HELP_STRING([--enable-generate-build-notes],
108 [generate GNU Build notes if none are provided by the input]),
109 [case "${enableval}" in
110 yes) ac_default_generate_build_notes=1 ;;
111 no) ac_default_generate_build_notes=0 ;;
114 # Decide if the MIPS assembler should default to enable MIPS fix Loongson3
116 ac_default_mips_fix_loongson3_llsc=unset
117 # Provide a configuration option to override the default.
118 AC_ARG_ENABLE(mips-fix-loongson3-llsc,
119 AS_HELP_STRING([--enable-mips-fix-loongson3-llsc],
120 [enable MIPS fix Loongson3 LLSC errata]),
121 [case "${enableval}" in
122 yes) ac_default_mips_fix_loongson3_llsc=1 ;;
123 no) ac_default_mips_fix_loongson3_llsc=0 ;;
126 # Decide if the x86 ELF assembler should default to generating GNU x86
127 # used ISA and feature properties.
128 ac_default_generate_x86_used_note=unset
129 # Provide a configuration option to override the default.
130 AC_ARG_ENABLE(x86-used-note,
131 AS_HELP_STRING([--enable-x86-used-note],
132 [generate GNU x86 used ISA and feature properties]),
133 [case "${enableval}" in
134 yes) ac_default_generate_x86_used_note=1 ;;
135 no) ac_default_generate_x86_used_note=0 ;;
138 # Decide if the RISC-V ELF assembler should default to generating attribute.
139 ac_default_generate_riscv_attr=unset
140 # Provide a configuration option to override the default.
141 AC_ARG_ENABLE(default-riscv-attribute,
142 AS_HELP_STRING([--enable-default-riscv-attribute],
143 [generate RISC-V arch attribute by default]),
144 [case "${enableval}" in
145 yes) ac_default_generate_riscv_attr=1 ;;
146 no) ac_default_generate_riscv_attr=0 ;;
153 # Generate a header file
154 AC_CONFIG_HEADERS(config.h:config.in)
156 dnl Option --with-cpu=TYPE allows configure type control of the default
157 dnl cpu type within the assembler. Currently only the ARC target
158 dnl supports this feature, but others may be added in the future.
160 AS_HELP_STRING([--with-cpu=CPU],
161 [default cpu variant is CPU (currently only supported on ARC)]),
162 [AC_DEFINE_UNQUOTED(TARGET_WITH_CPU,
164 [Target specific CPU.])],
168 AH_VERBATIM([00_CONFIG_H_CHECK],
169 [/* Check that config.h is #included before system headers
170 (this works only for glibc, but that should be enough). */
171 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
172 # error config.h must be #included before system headers
174 #define __CONFIG_H__ 1])
176 # If we are on a DOS filesystem, we must use gdb.ini rather than
179 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
181 AC_CONFIG_FILES(gdb.ini:gdbinit.in)
185 AC_CONFIG_FILES(.gdbinit:gdbinit.in)
190 #We need this for the host.
195 # Makefile target for installing gas in $(tooldir)/bin.
196 install_tooldir=install-exec-tooldir
200 if test -n "$enable_targets" ; then
201 for t in `echo $enable_targets | sed 's/,/ /g'`; do
202 if test $t = "all"; then
206 result=`$ac_config_sub $t 2>/dev/null`
207 if test -n "$result" ; then
208 canon_targets="$canon_targets $result"
210 # # Permit "all", etc. We don't support it yet though.
211 # canon_targets="$canon_targets $t"
214 GAS_UNIQ(canon_targets)
219 for this_target in $target $canon_targets ; do
222 . ${srcdir}/configure.tgt
224 case ${target_cpu} in
226 AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
227 [Default CRIS architecture.])
231 if test ${this_target} = $target ; then
232 target_cpu_type=${cpu_type}
233 elif test ${target_cpu_type} != ${cpu_type} ; then
237 generic_target=${cpu_type}-${target_vendor}-${target_os}
238 case ${generic_target} in
242 AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
245 i386-*-linux-* | x86_64-*-linux-*)
246 if test ${this_target} = $target \
247 && test ${ac_default_generate_x86_used_note} = unset; then
248 ac_default_generate_x86_used_note=1
253 | x86_64-*-solaris2 \
254 | i386-*-solaris2.[[0-9]] \
255 | i386-*-solaris2.1[[01]] \
256 | x86_64-*-solaris2.1[[01]])
257 if test ${this_target} = $target \
258 && test ${ac_default_x86_relax_relocations} = unset; then
259 ac_default_x86_relax_relocations=0
269 AC_DEFINE(AIX_WEAK_SUPPORT, 1,
270 [Define if using AIX 5.2 value for C_WEAKEXT.])
273 if test ${this_target} = $target; then
274 AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
275 [Define if default target is PowerPC Solaris.])
277 if test x${endian} = xbig; then
278 AC_MSG_ERROR(Solaris must be configured little endian)
283 if test ${this_target} = $target ; then
285 if test x${endian} = xbig; then
287 elif test x${endian} = xlittle; then
290 if test x${endian_def} != x; then
291 AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
292 [Define as 1 if big endian.])
296 # Other random stuff.
300 # Set mips_cpu to the name of the default CPU.
301 case ${target_cpu} in
302 mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
305 mipsisa32 | mipsisa32el)
308 mipsisa32r2 | mipsisa32r2el)
311 mipsisa32r3 | mipsisa32r3el)
314 mipsisa32r5 | mipsisa32r5el)
317 mipsisa32r6 | mipsisa32r6el)
320 mipsisa64 | mipsisa64el)
323 mipsisa64r2 | mipsisa64r2el)
326 mipsisa64r3 | mipsisa64r3el)
329 mipsisa64r5 | mipsisa64r5el)
332 mipsisa64r6 | mipsisa64r6el)
335 mipstx39 | mipstx39el)
338 mips64vr | mips64vrel)
341 mipsisa32r2* | mipsisa64r2*)
343 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
346 mipsisa32r6* | mipsisa64r6*)
348 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
351 mips64* | mipsisa64* | mipsisa32*)
353 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
358 mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
362 AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
365 # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
366 # binaries. It's a GNU extension that some OSes don't understand.
375 # Decide whether to generate 32-bit or 64-bit code by default.
376 # Used to resolve -march=from-abi when an embedded ABI is selected.
378 mips64*-*-* | mipsisa64*-*-*)
385 # Decide which ABI to target by default.
387 mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
388 | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
389 mips_default_abi=N32_ABI
391 mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
392 mips_default_abi=O32_ABI
395 mips_default_abi=N64_ABI
398 mips_default_abi=NO_ABI
401 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
402 [Default CPU for MIPS targets. ])
403 AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
404 [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
405 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
406 [Generate 64-bit code by default on MIPS targets. ])
407 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
408 [Choose a default ABI for MIPS targets. ])
412 # Do we need the opcodes library?
420 case "${enable_shared}" in
421 yes) shared_opcodes=true ;;
422 *opcodes*) shared_opcodes=true ;;
423 *) shared_opcodes=false ;;
428 # Any other special object files needed ?
432 for f in config/bfin-parse.o config/bfin-lex-wrapper.o; do
433 case " $extra_objects " in
435 *) extra_objects="$extra_objects $f" ;;
441 if test $this_target = $target ; then
442 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
446 epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
451 for f in config/loongarch-parse.o config/loongarch-lex-wrapper.o; do
452 case " $extra_objects " in
454 *) extra_objects="$extra_objects $f" ;;
457 # --target=loongarch[32|64]-*-*. */
458 if test $this_target = $target ; then
459 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
470 f=config/m68k-parse.o
471 case " $extra_objects " in
473 *) extra_objects="$extra_objects $f" ;;
482 for f in itbl-parse.o itbl-lex-wrapper.o itbl-ops.o; do
483 case " $extra_objects " in
485 *) extra_objects="$extra_objects $f" ;;
495 # setup NDS32_LINUX_TOOLCHAIN definition
496 if test "linux" = $em; then
497 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 1,
498 [Define value for nds32_linux_toolchain])
500 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 0,
501 [Define default value for nds32_linux_toolchain])
504 # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
505 # based on arch_name.
506 AC_MSG_CHECKING(for default configuration of --with-arch)
507 if test "x${with_arch}" != x; then
509 v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
510 AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
511 [Define value for nds32_arch_name])
514 AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
518 AC_MSG_RESULT($with_arch)
520 # Decide features one by one.
521 AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
522 if test "x${enable_dx_regs}" = xyes; then
523 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
524 [Define value for nds32_dx_regs])
526 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
527 [Define default value for nds32_dx_regs])
529 AC_MSG_RESULT($enable_dx_regs)
531 AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
532 if test "x${enable_perf_ext}" = xno; then
533 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
534 [Define value for nds32_perf_ext])
536 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
537 [Define default value for nds32_perf_ext])
539 AC_MSG_RESULT($enable_perf_ext)
541 AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
542 if test "x${enable_perf_ext2}" = xno; then
543 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
544 [Define value for nds32_perf_ext2])
546 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
547 [Define default value for nds32_perf_ext2])
549 AC_MSG_RESULT($enable_perf_ext2)
551 AC_MSG_CHECKING(for default configuration of --enable-string-ext)
552 if test "x${enable_string_ext}" = xno; then
553 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
554 [Define value for nds32_string_ext])
556 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
557 [Define default value for nds32_string_ext])
559 AC_MSG_RESULT($enable_string_ext)
561 AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
562 if test "x${enable_audio_ext}" = xno; then
563 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
564 [Define value for nds32_audio_ext])
566 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
567 [Define default value for nds32_audio_ext])
569 AC_MSG_RESULT($enable_audio_ext)
571 AC_MSG_CHECKING(for default configuration of --enable-dsp-ext)
572 if test "x${enable_dsp_ext}" = xno; then
573 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 0,
574 [Define value for nds32_dsp_ext])
576 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 1,
577 [Define default value for nds32_dsp_ext])
579 AC_MSG_RESULT($enable_dsp_ext)
581 AC_MSG_CHECKING(for default configuration of --enable-zol-ext)
582 if test "x${enable_zol_ext}" = xno; then
583 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 0,
584 [Define value for nds32_zol_ext])
586 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 1,
587 [Define default value for nds32_zol_ext])
589 AC_MSG_RESULT($enable_zol_ext)
592 aarch64 | i386 | s390 | sparc)
593 if test $this_target = $target ; then
594 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
599 # --target=riscv[32|64]-*-*. */
600 if test $this_target = $target ; then
601 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
604 # --with-arch=<value>. The syntax of <value> is same as Gas option -march.
605 AC_MSG_CHECKING(for default configuration of --with-arch)
606 if test "x${with_arch}" != x; then
607 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ARCH_WITH_EXT, "$with_arch",
608 [Define default value for RISC-V -march.])
610 AC_MSG_RESULT($with_arch)
612 # --with-isa-spec=[2.2|20190608|20191213].
613 AC_MSG_CHECKING(for default configuration of --with-isa-spec)
614 if test "x${with_isa_spec}" != x; then
615 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ISA_SPEC, "$with_isa_spec",
616 [Define default value for RISC-V -misa-spec.])
618 AC_MSG_RESULT($with_isa_spec)
620 # --with-priv-spec=[1.9.1|1.10|1.11|1.12].
621 AC_MSG_CHECKING(for default configuration of --with-priv-spec)
622 if test "x${with_priv_spec}" != x; then
623 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_PRIV_SPEC, "$with_priv_spec",
624 [Define default value for RISC-V -mpriv-spec])
626 AC_MSG_RESULT($with_priv_spec)
630 f=config/rl78-parse.o
631 case " $extra_objects " in
633 *) extra_objects="$extra_objects $f" ;;
639 case " $extra_objects " in
641 *) extra_objects="$extra_objects $f" ;;
654 f=config/xtensa-relax.o
655 case " $extra_objects " in
657 *) extra_objects="$extra_objects $f" ;;
665 if test $using_cgen = yes ; then
667 case " $extra_objects " in
669 *) extra_objects="$extra_objects $f" ;;
673 # See if we really can support this configuration with the emulation code.
675 if test $this_target = $target ; then
683 case " $extra_objects " in
685 *) extra_objects="$extra_objects $f" ;;
689 # From target name and format, produce a list of supported emulations.
691 case ${generic_target}-${fmt} in
692 mips-*-*-*) case "$endian" in
693 big) emulation="mipsbelf mipslelf mipself" ;;
694 *) emulation="mipslelf mipsbelf mipself" ;;
696 # i386-pc-pe-coff != i386-pc-coff.
698 # Uncommenting the next line will turn on support for i386 AOUT
699 # for the default linux configuration
700 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
702 i386-*-aout) emulation="i386aout" ;;
703 i386-*-coff) emulation="i386coff" ;;
704 i386-*-elf) emulation="i386elf" ;;
706 # Always all formats. The first stated emulation becomes the default.
707 cris-*-*aout*) emulation="crisaout criself" ;;
708 cris-*-*) emulation="criself crisaout" ;;
711 emulations="$emulations $emulation"
715 if test ${ac_default_x86_relax_relocations} = unset; then
716 ac_default_x86_relax_relocations=1
718 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
719 $ac_default_x86_relax_relocations,
720 [Define to 1 if you want to generate x86 relax relocations by default.])
722 if test ${ac_default_elf_stt_common} = unset; then
723 ac_default_elf_stt_common=0
725 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
726 $ac_default_elf_stt_common,
727 [Define to 1 if you want to generate ELF common symbols with the
728 STT_COMMON type by default.])
730 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_BUILD_NOTES,
731 $ac_default_generate_build_notes,
732 [Define to 1 if you want to generate GNU Build attribute notes
733 by default, if none are contained in the input.])
735 if test ${ac_default_generate_x86_used_note} = unset; then
736 ac_default_generate_x86_used_note=0
738 AC_DEFINE_UNQUOTED(DEFAULT_X86_USED_NOTE,
739 $ac_default_generate_x86_used_note,
740 [Define to 1 if you want to generate GNU x86 used ISA and feature
741 properties by default.])
743 if test ${ac_default_generate_riscv_attr} = unset; then
744 ac_default_generate_riscv_attr=1
747 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ATTR,
748 $ac_default_generate_riscv_attr,
749 [Define to 1 if you want to generate RISC-V arch attribute by default.])
751 if test ${ac_default_mips_fix_loongson3_llsc} = unset; then
752 ac_default_mips_fix_loongson3_llsc=0
754 AC_DEFINE_UNQUOTED(DEFAULT_MIPS_FIX_LOONGSON3_LLSC,
755 $ac_default_mips_fix_loongson3_llsc,
756 [Define to 1 if you want to fix Loongson3 LLSC Errata by default.])
758 if test x$ac_default_compressed_debug_sections = xyes ; then
759 AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
762 # Turn on all targets if possible
763 if test ${all_targets} = "yes"; then
764 case ${target_cpu_type} in
766 case ${obj_format} in
768 emulations="$emulations i386coff i386elf"
771 emulations="$emulations i386aout i386elf"
774 emulations="$emulations i386aout i386coff"
779 case ${obj_format} in
781 emulations="$emulations i386coff i386elf"
784 emulations="$emulations i386aout i386elf"
787 emulations="$emulations i386aout i386coff"
794 # PE code has way too many macros tweaking behaviour
796 pe*) emulations="" ;;
799 # Assign floating point type. Most processors with FP support
800 # IEEE FP. On those that don't support FP at all, usually IEEE
802 case ${target_cpu} in
803 vax | pdp11 ) atof=vax ;;
807 case "${obj_format}" in
808 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
811 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
813 if test $using_cgen = yes ; then
814 case ${target_cpu} in
816 cgen_cpu_prefix=or1k ;;
817 *) cgen_cpu_prefix=${target_cpu} ;;
819 AC_SUBST(cgen_cpu_prefix)
820 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
824 dnl Make sure the desired support files exist.
827 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
828 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
831 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
832 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
835 # Some COFF configurations want these random other flags set.
836 case ${obj_format} in
838 case ${target_cpu_type} in
839 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
840 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
845 # Getting this done right is going to be a bitch. Each configuration specified
846 # with --enable-targets=... should be checked for environment, format, cpu
849 # For each configuration, the necessary object file support code must be linked
850 # in. This might be only one, it might be up to four. The necessary emulation
851 # code needs to be provided, too.
853 # And then there's "--enable-targets=all"....
855 # For now, just always do it for MIPS ELF configurations. Sigh.
857 formats="${obj_format}"
861 for em in . $emulations ; do
864 mipsbelf | mipslelf | mipself)
865 fmt=elf file=mipself ;;
873 formats="$formats $fmt"
874 emfiles="$emfiles config/e-$file.o"
875 EMULATIONS="$EMULATIONS &$em,"
879 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
880 for fmt in $formats ; do
882 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
883 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
884 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
885 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
886 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
887 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
889 extra_objects="$extra_objects config/obj-$fmt.o"
893 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
894 DEFAULT_EMULATION=`set . $emulations ; echo $2`
895 # e-mipself has more than one emulation per file, e-i386* has just one at the
896 # moment. If only one emulation is specified, then don't define
897 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
898 case "${obj_format}${emfiles}" in
900 extra_objects="$extra_objects $emfiles"
901 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
904 AC_SUBST(extra_objects)
905 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
906 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
907 [Default emulation.])
909 reject_dev_configs=yes
911 case ${reject_dev_configs}-${dev} in
913 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
917 AC_SUBST(target_cpu_type)
920 AC_SUBST(install_tooldir)
922 dnl AC_SUBST(emulation)
924 # do we need the opcodes library?
925 case "${need_opcodes}" in
927 OPCODES_LIB=../opcodes/libopcodes.la
931 AC_SUBST(OPCODES_LIB)
933 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
934 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
935 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
936 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
937 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
942 ALL_LINGUAS="es fi fr id ja ru rw sv tr uk zh_CN"
943 ZW_GNU_GETTEXT_SISTER_DIR
947 AM_CONDITIONAL(GENINSRC_NEVER, false)
950 AC_CHECK_HEADERS(memory.h sys/stat.h sys/types.h unistd.h)
952 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
953 # people who are not cross-compiling but are compiling cross-assemblers.
954 AC_MSG_CHECKING(whether compiling a cross-assembler)
955 if test "${host}" = "${target}"; then
959 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
961 AC_MSG_RESULT($cross_gas)
963 AC_CHECK_FUNCS(strsignal)
967 # do we need the math library?
968 case "${need_libm}" in
975 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
976 # enough, but on some of those systems, the assert macro relies on requoting
980 # On some systems, the system header files may not declare malloc, realloc,
981 # and free. There are places where gas needs these functions to have been
982 # declared -- such as when taking their addresses.
994 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
995 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
996 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
997 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
998 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
999 if test $gas_cv_decl_getopt_unistd_h = yes; then
1000 AC_DEFINE([HAVE_DECL_GETOPT], 1,
1001 [Is the prototype for getopt in <unistd.h> in the expected format?])
1004 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
1005 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
1007 AC_CHECK_DECLS([asprintf, mempcpy, stpcpy])
1011 # Link in zlib if we can. This allows us to write compressed debug sections.
1014 # Support for VMS timestamps via cross compile
1016 if test "$ac_cv_header_time_h" = yes; then
1017 GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
1020 if test "$ac_cv_header_sys_stat_h" = yes; then
1021 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
1022 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
1026 dnl Required for html, pdf, install-pdf and install-html targets.
1027 AC_SUBST(datarootdir)
1032 dnl This must come last.
1034 dnl We used to make symlinks to files in the source directory, but now
1035 dnl we just use the right name for .c files, and create .h files in
1036 dnl the build directory which include the right .h file. Make sure
1037 dnl the old symlinks don't exist, so that a reconfigure in an existing
1038 dnl directory behaves reasonably.
1040 AC_CONFIG_FILES(Makefile po/Makefile.in:po/Make-in)
1041 AC_CONFIG_COMMANDS([default],
1042 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
1043 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
1044 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
1045 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
1046 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
1047 if test "x$cgen_cpu_prefix" != x ; then
1048 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
1050 [target_cpu_type=${target_cpu_type}
1051 cgen_cpu_prefix=${cgen_cpu_prefix}
1052 obj_format=${obj_format}
1053 te_file=${te_file}])