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) 2012-2020 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/../.
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?])
246 | x86_64-*-solaris2 \
247 | i386-*-solaris2.[[0-9]] \
248 | i386-*-solaris2.1[[01]] \
249 | x86_64-*-solaris2.1[[01]])
250 if test ${this_target} = $target \
251 && test ${ac_default_x86_relax_relocations} = unset; then
252 ac_default_x86_relax_relocations=0
262 AC_DEFINE(AIX_WEAK_SUPPORT, 1,
263 [Define if using AIX 5.2 value for C_WEAKEXT.])
266 if test ${this_target} = $target; then
267 AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
268 [Define if default target is PowerPC Solaris.])
270 if test x${endian} = xbig; then
271 AC_MSG_ERROR(Solaris must be configured little endian)
276 if test ${this_target} = $target ; then
278 if test x${endian} = xbig; then
280 elif test x${endian} = xlittle; then
283 if test x${endian_def} != x; then
284 AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
285 [Define as 1 if big endian.])
289 # Other random stuff.
293 # Set mips_cpu to the name of the default CPU.
294 case ${target_cpu} in
295 mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
298 mipsisa32 | mipsisa32el)
301 mipsisa32r2 | mipsisa32r2el)
304 mipsisa32r3 | mipsisa32r3el)
307 mipsisa32r5 | mipsisa32r5el)
310 mipsisa32r6 | mipsisa32r6el)
313 mipsisa64 | mipsisa64el)
316 mipsisa64r2 | mipsisa64r2el)
319 mipsisa64r3 | mipsisa64r3el)
322 mipsisa64r5 | mipsisa64r5el)
325 mipsisa64r6 | mipsisa64r6el)
328 mipstx39 | mipstx39el)
331 mips64vr | mips64vrel)
334 mipsisa32r2* | mipsisa64r2*)
336 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
339 mipsisa32r6* | mipsisa64r6*)
341 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
344 mips64* | mipsisa64* | mipsisa32*)
346 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
351 mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
355 AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
358 # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
359 # binaries. It's a GNU extension that some OSes don't understand.
368 # Decide whether to generate 32-bit or 64-bit code by default.
369 # Used to resolve -march=from-abi when an embedded ABI is selected.
371 mips64*-*-* | mipsisa64*-*-*)
378 # Decide which ABI to target by default.
380 mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
381 | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
382 mips_default_abi=N32_ABI
384 mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
385 mips_default_abi=O32_ABI
388 mips_default_abi=N64_ABI
391 mips_default_abi=NO_ABI
394 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
395 [Default CPU for MIPS targets. ])
396 AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
397 [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
398 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
399 [Generate 64-bit code by default on MIPS targets. ])
400 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
401 [Choose a default ABI for MIPS targets. ])
405 # Do we need the opcodes library?
413 case "${enable_shared}" in
414 yes) shared_opcodes=true ;;
415 *opcodes*) shared_opcodes=true ;;
416 *) shared_opcodes=false ;;
421 # Any other special object files needed ?
425 for f in bfin-parse.o bfin-lex-wrapper.o; do
426 case " $extra_objects " in
428 *) extra_objects="$extra_objects $f" ;;
434 if test $this_target = $target ; then
435 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
439 epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
451 case " $extra_objects " in
453 *) extra_objects="$extra_objects $f" ;;
462 for f in itbl-parse.o itbl-lex-wrapper.o itbl-ops.o; do
463 case " $extra_objects " in
465 *) extra_objects="$extra_objects $f" ;;
475 # setup NDS32_LINUX_TOOLCHAIN definition
476 if test "linux" = $em; then
477 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 1,
478 [Define value for nds32_linux_toolchain])
480 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 0,
481 [Define default value for nds32_linux_toolchain])
484 # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
485 # based on arch_name.
486 AC_MSG_CHECKING(for default configuration of --with-arch)
487 if test "x${with_arch}" != x; then
489 v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
490 AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
491 [Define value for nds32_arch_name])
494 AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
498 AC_MSG_RESULT($with_arch)
500 # Decide features one by one.
501 AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
502 if test "x${enable_dx_regs}" = xyes; then
503 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
504 [Define value for nds32_dx_regs])
506 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
507 [Define default value for nds32_dx_regs])
509 AC_MSG_RESULT($enable_dx_regs)
511 AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
512 if test "x${enable_perf_ext}" = xno; then
513 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
514 [Define value for nds32_perf_ext])
516 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
517 [Define default value for nds32_perf_ext])
519 AC_MSG_RESULT($enable_perf_ext)
521 AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
522 if test "x${enable_perf_ext2}" = xno; then
523 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
524 [Define value for nds32_perf_ext2])
526 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
527 [Define default value for nds32_perf_ext2])
529 AC_MSG_RESULT($enable_perf_ext2)
531 AC_MSG_CHECKING(for default configuration of --enable-string-ext)
532 if test "x${enable_string_ext}" = xno; then
533 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
534 [Define value for nds32_string_ext])
536 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
537 [Define default value for nds32_string_ext])
539 AC_MSG_RESULT($enable_string_ext)
541 AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
542 if test "x${enable_audio_ext}" = xno; then
543 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
544 [Define value for nds32_audio_ext])
546 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
547 [Define default value for nds32_audio_ext])
549 AC_MSG_RESULT($enable_audio_ext)
551 AC_MSG_CHECKING(for default configuration of --enable-dsp-ext)
552 if test "x${enable_dsp_ext}" = xno; then
553 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 0,
554 [Define value for nds32_dsp_ext])
556 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 1,
557 [Define default value for nds32_dsp_ext])
559 AC_MSG_RESULT($enable_dsp_ext)
561 AC_MSG_CHECKING(for default configuration of --enable-zol-ext)
562 if test "x${enable_zol_ext}" = xno; then
563 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 0,
564 [Define value for nds32_zol_ext])
566 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 1,
567 [Define default value for nds32_zol_ext])
569 AC_MSG_RESULT($enable_zol_ext)
572 aarch64 | i386 | s390 | sparc)
573 if test $this_target = $target ; then
574 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
579 # --target=riscv[32|64]-*-*. */
580 if test $this_target = $target ; then
581 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
584 # --with-arch=<value>. The syntax of <value> is same as Gas option -march.
585 AC_MSG_CHECKING(for default configuration of --with-arch)
586 if test "x${with_arch}" != x; then
587 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ARCH_WITH_EXT, "$with_arch",
588 [Define default value for RISC-V -march.])
590 AC_MSG_RESULT($with_arch)
592 # --with-isa-spec=[2.2|20190608|20191213].
593 AC_MSG_CHECKING(for default configuration of --with-isa-spec)
594 if test "x${with_isa_spec}" != x; then
595 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ISA_SPEC, "$with_isa_spec",
596 [Define default value for RISC-V -misa-spec.])
598 AC_MSG_RESULT($with_isa_spec)
600 # --with-priv-spec=[1.9|1.9.1|1.10|1.11].
601 AC_MSG_CHECKING(for default configuration of --with-priv-spec)
602 if test "x${with_priv_spec}" != x; then
603 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_PRIV_SPEC, "$with_priv_spec",
604 [Define default value for RISC-V -mpriv-spec])
606 AC_MSG_RESULT($with_priv_spec)
611 case " $extra_objects " in
613 *) extra_objects="$extra_objects $f" ;;
619 case " $extra_objects " in
621 *) extra_objects="$extra_objects $f" ;;
634 f=config/xtensa-relax.o
635 case " $extra_objects " in
637 *) extra_objects="$extra_objects $f" ;;
645 if test $using_cgen = yes ; then
647 case " $extra_objects " in
649 *) extra_objects="$extra_objects $f" ;;
653 # See if we really can support this configuration with the emulation code.
655 if test $this_target = $target ; then
663 case " $extra_objects " in
665 *) extra_objects="$extra_objects $f" ;;
669 # From target name and format, produce a list of supported emulations.
671 case ${generic_target}-${fmt} in
672 mips-*-*-*) case "$endian" in
673 big) emulation="mipsbelf mipslelf mipself" ;;
674 *) emulation="mipslelf mipsbelf mipself" ;;
676 # i386-pc-pe-coff != i386-pc-coff.
678 # Uncommenting the next line will turn on support for i386 AOUT
679 # for the default linux configuration
680 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
682 i386-*-aout) emulation="i386aout" ;;
683 i386-*-coff) emulation="i386coff" ;;
684 i386-*-elf) emulation="i386elf" ;;
686 # Always all formats. The first stated emulation becomes the default.
687 cris-*-*aout*) emulation="crisaout criself" ;;
688 cris-*-*) emulation="criself crisaout" ;;
691 emulations="$emulations $emulation"
695 if test ${ac_default_x86_relax_relocations} = unset; then
696 ac_default_x86_relax_relocations=1
698 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
699 $ac_default_x86_relax_relocations,
700 [Define to 1 if you want to generate x86 relax relocations by default.])
702 if test ${ac_default_elf_stt_common} = unset; then
703 ac_default_elf_stt_common=0
705 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
706 $ac_default_elf_stt_common,
707 [Define to 1 if you want to generate ELF common symbols with the
708 STT_COMMON type by default.])
710 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_BUILD_NOTES,
711 $ac_default_generate_build_notes,
712 [Define to 1 if you want to generate GNU Build attribute notes
713 by default, if none are contained in the input.])
715 if test ${ac_default_generate_x86_used_note} = unset; then
716 ac_default_generate_x86_used_note=0
718 AC_DEFINE_UNQUOTED(DEFAULT_X86_USED_NOTE,
719 $ac_default_generate_x86_used_note,
720 [Define to 1 if you want to generate GNU x86 used ISA and feature
721 properties by default.])
723 if test ${ac_default_generate_riscv_attr} = unset; then
726 ac_default_generate_riscv_attr=1
729 ac_default_generate_riscv_attr=0
734 AC_DEFINE_UNQUOTED(DEFAULT_RISCV_ATTR,
735 $ac_default_generate_riscv_attr,
736 [Define to 1 if you want to generate RISC-V arch attribute by default.])
738 if test ${ac_default_mips_fix_loongson3_llsc} = unset; then
739 ac_default_mips_fix_loongson3_llsc=0
741 AC_DEFINE_UNQUOTED(DEFAULT_MIPS_FIX_LOONGSON3_LLSC,
742 $ac_default_mips_fix_loongson3_llsc,
743 [Define to 1 if you want to fix Loongson3 LLSC Errata by default.])
745 if test x$ac_default_compressed_debug_sections = xyes ; then
746 AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
749 # Turn on all targets if possible
750 if test ${all_targets} = "yes"; then
751 case ${target_cpu_type} in
753 case ${obj_format} in
755 emulations="$emulations i386coff i386elf"
758 emulations="$emulations i386aout i386elf"
761 emulations="$emulations i386aout i386coff"
766 case ${obj_format} in
768 emulations="$emulations i386coff i386elf"
771 emulations="$emulations i386aout i386elf"
774 emulations="$emulations i386aout i386coff"
781 # PE code has way too many macros tweaking behaviour
783 pe*) emulations="" ;;
786 # Assign floating point type. Most processors with FP support
787 # IEEE FP. On those that don't support FP at all, usually IEEE
789 case ${target_cpu} in
790 vax | pdp11 ) atof=vax ;;
794 case "${obj_format}" in
795 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
798 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
800 if test $using_cgen = yes ; then
801 case ${target_cpu} in
803 cgen_cpu_prefix=or1k ;;
804 *) cgen_cpu_prefix=${target_cpu} ;;
806 AC_SUBST(cgen_cpu_prefix)
807 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
811 dnl Make sure the desired support files exist.
814 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
815 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
818 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
819 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
822 # Some COFF configurations want these random other flags set.
823 case ${obj_format} in
825 case ${target_cpu_type} in
826 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
827 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
832 # Getting this done right is going to be a bitch. Each configuration specified
833 # with --enable-targets=... should be checked for environment, format, cpu
836 # For each configuration, the necessary object file support code must be linked
837 # in. This might be only one, it might be up to four. The necessary emulation
838 # code needs to be provided, too.
840 # And then there's "--enable-targets=all"....
842 # For now, just always do it for MIPS ELF configurations. Sigh.
844 formats="${obj_format}"
848 for em in . $emulations ; do
851 mipsbelf | mipslelf | mipself)
852 fmt=elf file=mipself ;;
860 formats="$formats $fmt"
861 emfiles="$emfiles config/e-$file.o"
862 EMULATIONS="$EMULATIONS &$em,"
866 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
867 for fmt in $formats ; do
869 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
870 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
871 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
872 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
873 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
874 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
876 extra_objects="$extra_objects config/obj-$fmt.o"
880 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
881 DEFAULT_EMULATION=`set . $emulations ; echo $2`
882 # e-mipself has more than one emulation per file, e-i386* has just one at the
883 # moment. If only one emulation is specified, then don't define
884 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
885 case "${obj_format}${emfiles}" in
887 extra_objects="$extra_objects $emfiles"
888 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
891 AC_SUBST(extra_objects)
892 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
893 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
894 [Default emulation.])
896 reject_dev_configs=yes
898 case ${reject_dev_configs}-${dev} in
900 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
904 AC_SUBST(target_cpu_type)
907 AC_SUBST(install_tooldir)
909 dnl AC_SUBST(emulation)
911 # do we need the opcodes library?
912 case "${need_opcodes}" in
914 OPCODES_LIB=../opcodes/libopcodes.la
918 AC_SUBST(OPCODES_LIB)
920 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
921 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
922 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
923 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
924 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
929 ALL_LINGUAS="es fi fr id ja ru rw sv tr uk zh_CN"
930 ZW_GNU_GETTEXT_SISTER_DIR
934 AM_CONDITIONAL(GENINSRC_NEVER, false)
937 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h errno.h sys/types.h limits.h locale.h time.h sys/stat.h)
940 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
941 # people who are not cross-compiling but are compiling cross-assemblers.
942 AC_MSG_CHECKING(whether compiling a cross-assembler)
943 if test "${host}" = "${target}"; then
947 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
949 AC_MSG_RESULT($cross_gas)
951 dnl ansidecl.h will deal with const
956 # VMS doesn't have unlink.
957 AC_CHECK_FUNCS(unlink remove, break)
958 AC_CHECK_FUNCS(sbrk setlocale)
959 AC_CHECK_FUNCS(strsignal)
963 # do we need the math library?
964 case "${need_libm}" in
971 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
972 # enough, but on some of those systems, the assert macro relies on requoting
976 # On some systems, the system header files may not declare malloc, realloc,
977 # and free. There are places where gas needs these functions to have been
978 # declared -- such as when taking their addresses.
986 #ifdef HAVE_STRINGS_H
998 # Does errno.h declare errno, or do we have to add a separate declaration
1000 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
1006 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
1007 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
1008 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
1009 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
1010 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
1011 if test $gas_cv_decl_getopt_unistd_h = yes; then
1012 AC_DEFINE([HAVE_DECL_GETOPT], 1,
1013 [Is the prototype for getopt in <unistd.h> in the expected format?])
1016 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
1017 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
1018 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
1019 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
1020 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
1021 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
1023 AC_CHECK_DECLS([free, getenv, malloc, mempcpy, realloc, stpcpy, strstr, vsnprintf, asprintf])
1027 # Link in zlib if we can. This allows us to write compressed debug sections.
1030 # Support for VMS timestamps via cross compile
1032 if test "$ac_cv_header_time_h" = yes; then
1033 GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
1036 if test "$ac_cv_header_sys_stat_h" = yes; then
1037 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
1038 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
1042 dnl Required for html, pdf, install-pdf and install-html targets.
1043 AC_SUBST(datarootdir)
1048 dnl This must come last.
1050 dnl We used to make symlinks to files in the source directory, but now
1051 dnl we just use the right name for .c files, and create .h files in
1052 dnl the build directory which include the right .h file. Make sure
1053 dnl the old symlinks don't exist, so that a reconfigure in an existing
1054 dnl directory behaves reasonably.
1056 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
1057 AC_CONFIG_COMMANDS([default],
1058 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
1059 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
1060 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
1061 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
1062 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
1063 if test "x$cgen_cpu_prefix" != x ; then
1064 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
1066 [target_cpu_type=${target_cpu_type}
1067 cgen_cpu_prefix=${cgen_cpu_prefix}
1068 obj_format=${obj_format}
1069 te_file=${te_file}])