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) 2012-2018 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 if grep '^RELEASE=y' ${srcdir}/../bfd/Makefile.am >/dev/null 2>/dev/null ; then
57 AC_ARG_ENABLE(checking,
58 [ --enable-checking enable run-time checks],
59 [case "${enableval}" in
60 no|none) ac_checking= ;;
63 if test x$ac_checking != x ; then
64 AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
68 # Decide the default method for compressing debug sections.
69 ac_default_compressed_debug_sections=unset
70 # Provide a configure time option to override our default.
71 AC_ARG_ENABLE(compressed_debug_sections,
72 AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,none}],
73 [compress debug sections by default]),
74 [case ,"${enableval}", in
75 ,yes, | ,all, | *,gas,*) ac_default_compressed_debug_sections=yes ;;
76 ,no, | ,none,) ac_default_compressed_debug_sections=no ;;
77 *) ac_default_compressed_debug_sections=unset ;;
81 # Decide if x86 assembler should generate relax relocations.
82 ac_default_x86_relax_relocations=unset
83 # Provide a configure time option to override our default.
84 AC_ARG_ENABLE(x86_relax_relocations,
85 AS_HELP_STRING([--enable-x86-relax-relocations],
86 [generate x86 relax relocations by default]),
87 [case "${enableval}" in
88 no) ac_default_x86_relax_relocations=0 ;;
91 # Decide if ELF assembler should generate common symbols with the
93 ac_default_elf_stt_common=unset
94 # Provide a configure time option to override our default.
95 AC_ARG_ENABLE(elf_stt_common,
96 AS_HELP_STRING([--enable-elf-stt-common],
97 [generate ELF common symbols with STT_COMMON type by default]),
98 [case "${enableval}" in
99 yes) ac_default_elf_stt_common=1 ;;
103 # Decide if the ELF assembler should default to generating
104 # GNU Build notes if none are provided by the input.
105 ac_default_generate_build_notes=0
106 # Provide a configuration option to override the default.
107 AC_ARG_ENABLE(generate_build_notes,
108 AS_HELP_STRING([--enable-generate-build-notes],
109 [generate GNU Build notes if none are provided by the input]),
110 [case "${enableval}" in
111 yes) ac_default_generate_build_notes=1 ;;
112 no) ac_default_generate_build_notes=0 ;;
116 # Decide if the x86 ELF assembler should default to generating GNU x86
117 # used ISA and feature properties.
118 ac_default_generate_x86_used_note=unset
119 # Provide a configuration option to override the default.
120 AC_ARG_ENABLE(x86-used-note,
121 AS_HELP_STRING([--enable-x86-used-note],
122 [generate GNU x86 used ISA and feature properties]),
123 [case "${enableval}" in
124 yes) ac_default_generate_x86_used_note=1 ;;
125 no) ac_default_generate_x86_used_note=0 ;;
133 # Generate a header file
134 AC_CONFIG_HEADERS(config.h:config.in)
136 dnl Option --with-cpu=TYPE allows configure type control of the default
137 dnl cpu type within the assembler. Currently only the ARC target
138 dnl supports this feature, but others may be added in the future.
140 AS_HELP_STRING([--with-cpu=CPU],
141 [default cpu variant is CPU (currently only supported on ARC)]),
142 [AC_DEFINE_UNQUOTED(TARGET_WITH_CPU,
144 [Target specific CPU.])],
148 AH_VERBATIM([00_CONFIG_H_CHECK],
149 [/* Check that config.h is #included before system headers
150 (this works only for glibc, but that should be enough). */
151 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
152 # error config.h must be #included before system headers
154 #define __CONFIG_H__ 1])
156 # If we are on a DOS filesystem, we must use gdb.ini rather than
159 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
161 AC_CONFIG_FILES(gdb.ini:gdbinit.in)
165 AC_CONFIG_FILES(.gdbinit:gdbinit.in)
170 #We need this for the host.
175 # Makefile target for installing gas in $(tooldir)/bin.
176 install_tooldir=install-exec-tooldir
180 if test -n "$enable_targets" ; then
181 for t in `echo $enable_targets | sed 's/,/ /g'`; do
182 if test $t = "all"; then
186 result=`$ac_config_sub $t 2>/dev/null`
187 if test -n "$result" ; then
188 canon_targets="$canon_targets $result"
190 # # Permit "all", etc. We don't support it yet though.
191 # canon_targets="$canon_targets $t"
194 GAS_UNIQ(canon_targets)
199 for this_target in $target $canon_targets ; do
202 . ${srcdir}/configure.tgt
204 case ${target_cpu} in
206 AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
207 [Default CRIS architecture.])
211 if test ${this_target} = $target ; then
212 target_cpu_type=${cpu_type}
213 elif test ${target_cpu_type} != ${cpu_type} ; then
217 generic_target=${cpu_type}-${target_vendor}-${target_os}
218 case ${generic_target} in
222 AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
226 | x86_64-*-solaris2 \
227 | i386-*-solaris2.[[0-9]] \
228 | i386-*-solaris2.1[[01]] \
229 | x86_64-*-solaris2.1[[01]])
230 if test ${this_target} = $target \
231 && test ${ac_default_x86_relax_relocations} = unset; then
232 ac_default_x86_relax_relocations=0
242 AC_DEFINE(AIX_WEAK_SUPPORT, 1,
243 [Define if using AIX 5.2 value for C_WEAKEXT.])
246 if test ${this_target} = $target; then
247 AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
248 [Define if default target is PowerPC Solaris.])
250 if test x${endian} = xbig; then
251 AC_MSG_ERROR(Solaris must be configured little endian)
256 if test ${this_target} = $target ; then
258 if test x${endian} = xbig; then
260 elif test x${endian} = xlittle; then
263 if test x${endian_def} != x; then
264 AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
265 [Define as 1 if big endian.])
269 # Other random stuff.
273 # Set mips_cpu to the name of the default CPU.
274 case ${target_cpu} in
275 mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
278 mipsisa32 | mipsisa32el)
281 mipsisa32r2 | mipsisa32r2el)
284 mipsisa32r3 | mipsisa32r3el)
287 mipsisa32r5 | mipsisa32r5el)
290 mipsisa32r6 | mipsisa32r6el)
293 mipsisa64 | mipsisa64el)
296 mipsisa64r2 | mipsisa64r2el)
299 mipsisa64r3 | mipsisa64r3el)
302 mipsisa64r5 | mipsisa64r5el)
305 mipsisa64r6 | mipsisa64r6el)
308 mipstx39 | mipstx39el)
311 mips64vr | mips64vrel)
314 mipsisa32r2* | mipsisa64r2*)
316 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
319 mipsisa32r6* | mipsisa64r6*)
321 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
324 mips64* | mipsisa64* | mipsisa32*)
326 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
331 mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
335 AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
338 # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
339 # binaries. It's a GNU extension that some OSes don't understand.
348 # Decide whether to generate 32-bit or 64-bit code by default.
349 # Used to resolve -march=from-abi when an embedded ABI is selected.
351 mips64*-*-* | mipsisa64*-*-*)
358 # Decide which ABI to target by default.
360 mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
361 | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
362 mips_default_abi=N32_ABI
364 mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
365 mips_default_abi=O32_ABI
368 mips_default_abi=N64_ABI
371 mips_default_abi=NO_ABI
374 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
375 [Default CPU for MIPS targets. ])
376 AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
377 [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
378 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
379 [Generate 64-bit code by default on MIPS targets. ])
380 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
381 [Choose a default ABI for MIPS targets. ])
385 # Do we need the opcodes library?
393 case "${enable_shared}" in
394 yes) shared_opcodes=true ;;
395 *opcodes*) shared_opcodes=true ;;
396 *) shared_opcodes=false ;;
401 # Any other special object files needed ?
405 for f in bfin-parse.o bfin-lex-wrapper.o; do
406 case " $extra_objects " in
408 *) extra_objects="$extra_objects $f" ;;
413 epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
425 case " $extra_objects " in
427 *) extra_objects="$extra_objects $f" ;;
436 for f in itbl-parse.o itbl-lex-wrapper.o itbl-ops.o; do
437 case " $extra_objects " in
439 *) extra_objects="$extra_objects $f" ;;
449 # setup NDS32_LINUX_TOOLCHAIN definition
450 if test "linux" = $em; then
451 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 1,
452 [Define value for nds32_linux_toolchain])
454 AC_DEFINE(NDS32_LINUX_TOOLCHAIN, 0,
455 [Define default value for nds32_linux_toolchain])
458 # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
459 # based on arch_name.
460 AC_MSG_CHECKING(for default configuration of --with-arch)
461 if test "x${with_arch}" != x; then
463 v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
464 AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
465 [Define value for nds32_arch_name])
468 AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
472 AC_MSG_RESULT($with_arch)
474 # Decide features one by one.
475 AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
476 if test "x${enable_dx_regs}" = xyes; then
477 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
478 [Define value for nds32_dx_regs])
480 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
481 [Define default value for nds32_dx_regs])
483 AC_MSG_RESULT($enable_dx_regs)
485 AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
486 if test "x${enable_perf_ext}" = xno; then
487 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
488 [Define value for nds32_perf_ext])
490 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
491 [Define default value for nds32_perf_ext])
493 AC_MSG_RESULT($enable_perf_ext)
495 AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
496 if test "x${enable_perf_ext2}" = xno; then
497 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
498 [Define value for nds32_perf_ext2])
500 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
501 [Define default value for nds32_perf_ext2])
503 AC_MSG_RESULT($enable_perf_ext2)
505 AC_MSG_CHECKING(for default configuration of --enable-string-ext)
506 if test "x${enable_string_ext}" = xno; then
507 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
508 [Define value for nds32_string_ext])
510 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
511 [Define default value for nds32_string_ext])
513 AC_MSG_RESULT($enable_string_ext)
515 AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
516 if test "x${enable_audio_ext}" = xno; then
517 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
518 [Define value for nds32_audio_ext])
520 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
521 [Define default value for nds32_audio_ext])
523 AC_MSG_RESULT($enable_audio_ext)
525 AC_MSG_CHECKING(for default configuration of --enable-dsp-ext)
526 if test "x${enable_dsp_ext}" = xno; then
527 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 0,
528 [Define value for nds32_dsp_ext])
530 AC_DEFINE(NDS32_DEFAULT_DSP_EXT, 1,
531 [Define default value for nds32_dsp_ext])
533 AC_MSG_RESULT($enable_dsp_ext)
535 AC_MSG_CHECKING(for default configuration of --enable-zol-ext)
536 if test "x${enable_zol_ext}" = xno; then
537 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 0,
538 [Define value for nds32_zol_ext])
540 AC_DEFINE(NDS32_DEFAULT_ZOL_EXT, 1,
541 [Define default value for nds32_zol_ext])
543 AC_MSG_RESULT($enable_zol_ext)
546 aarch64 | i386 | riscv | s390 | sparc)
547 if test $this_target = $target ; then
548 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
554 case " $extra_objects " in
556 *) extra_objects="$extra_objects $f" ;;
562 case " $extra_objects " in
564 *) extra_objects="$extra_objects $f" ;;
577 f=config/xtensa-relax.o
578 case " $extra_objects " in
580 *) extra_objects="$extra_objects $f" ;;
588 if test $using_cgen = yes ; then
590 case " $extra_objects " in
592 *) extra_objects="$extra_objects $f" ;;
596 # See if we really can support this configuration with the emulation code.
598 if test $this_target = $target ; then
606 case " $extra_objects " in
608 *) extra_objects="$extra_objects $f" ;;
612 # From target name and format, produce a list of supported emulations.
614 case ${generic_target}-${fmt} in
615 mips-*-*-*) case "$endian" in
616 big) emulation="mipsbelf mipslelf mipself" ;;
617 *) emulation="mipslelf mipsbelf mipself" ;;
619 # i386-pc-pe-coff != i386-pc-coff.
621 # Uncommenting the next line will turn on support for i386 AOUT
622 # for the default linux configuration
623 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
625 i386-*-aout) emulation="i386aout" ;;
626 i386-*-coff) emulation="i386coff" ;;
627 i386-*-elf) emulation="i386elf" ;;
629 # Always all formats. The first stated emulation becomes the default.
630 cris-*-*aout*) emulation="crisaout criself" ;;
631 cris-*-*) emulation="criself crisaout" ;;
634 emulations="$emulations $emulation"
638 if test ${ac_default_x86_relax_relocations} = unset; then
639 ac_default_x86_relax_relocations=1
641 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
642 $ac_default_x86_relax_relocations,
643 [Define to 1 if you want to generate x86 relax relocations by default.])
645 if test ${ac_default_elf_stt_common} = unset; then
646 ac_default_elf_stt_common=0
648 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
649 $ac_default_elf_stt_common,
650 [Define to 1 if you want to generate ELF common symbols with the
651 STT_COMMON type by default.])
653 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_BUILD_NOTES,
654 $ac_default_generate_build_notes,
655 [Define to 1 if you want to generate GNU Build attribute notes
656 by default, if none are contained in the input.])
658 if test ${ac_default_generate_x86_used_note} = unset; then
659 ac_default_generate_x86_used_note=0
661 AC_DEFINE_UNQUOTED(DEFAULT_X86_USED_NOTE,
662 $ac_default_generate_x86_used_note,
663 [Define to 1 if you want to generate GNU x86 used ISA and feature
664 properties by default.])
666 if test x$ac_default_compressed_debug_sections = xyes ; then
667 AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
670 # Turn on all targets if possible
671 if test ${all_targets} = "yes"; then
672 case ${target_cpu_type} in
674 case ${obj_format} in
676 emulations="$emulations i386coff i386elf"
679 emulations="$emulations i386aout i386elf"
682 emulations="$emulations i386aout i386coff"
687 case ${obj_format} in
689 emulations="$emulations i386coff i386elf"
692 emulations="$emulations i386aout i386elf"
695 emulations="$emulations i386aout i386coff"
702 # PE code has way too many macros tweaking behaviour
704 pe*) emulations="" ;;
707 # Assign floating point type. Most processors with FP support
708 # IEEE FP. On those that don't support FP at all, usually IEEE
710 case ${target_cpu} in
711 vax | pdp11 ) atof=vax ;;
715 case "${obj_format}" in
716 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
719 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
721 if test $using_cgen = yes ; then
722 case ${target_cpu} in
724 cgen_cpu_prefix=or1k ;;
725 *) cgen_cpu_prefix=${target_cpu} ;;
727 AC_SUBST(cgen_cpu_prefix)
728 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
732 dnl Make sure the desired support files exist.
735 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
736 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
739 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
740 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
743 # Some COFF configurations want these random other flags set.
744 case ${obj_format} in
746 case ${target_cpu_type} in
747 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
748 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
753 # Getting this done right is going to be a bitch. Each configuration specified
754 # with --enable-targets=... should be checked for environment, format, cpu
757 # For each configuration, the necessary object file support code must be linked
758 # in. This might be only one, it might be up to four. The necessary emulation
759 # code needs to be provided, too.
761 # And then there's "--enable-targets=all"....
763 # For now, just always do it for MIPS ELF configurations. Sigh.
765 formats="${obj_format}"
769 for em in . $emulations ; do
772 mipsbelf | mipslelf | mipself)
773 fmt=elf file=mipself ;;
781 formats="$formats $fmt"
782 emfiles="$emfiles config/e-$file.o"
783 EMULATIONS="$EMULATIONS &$em,"
787 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
788 for fmt in $formats ; do
790 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
791 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
792 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
793 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
794 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
795 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
797 extra_objects="$extra_objects config/obj-$fmt.o"
801 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
802 DEFAULT_EMULATION=`set . $emulations ; echo $2`
803 # e-mipself has more than one emulation per file, e-i386* has just one at the
804 # moment. If only one emulation is specified, then don't define
805 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
806 case "${obj_format}${emfiles}" in
808 extra_objects="$extra_objects $emfiles"
809 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
812 AC_SUBST(extra_objects)
813 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
814 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
815 [Default emulation.])
817 reject_dev_configs=yes
819 case ${reject_dev_configs}-${dev} in
821 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
825 AC_SUBST(target_cpu_type)
828 AC_SUBST(install_tooldir)
830 dnl AC_SUBST(emulation)
832 # do we need the opcodes library?
833 case "${need_opcodes}" in
835 OPCODES_LIB=../opcodes/libopcodes.la
839 AC_SUBST(OPCODES_LIB)
841 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
842 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
843 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
844 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
845 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
850 ALL_LINGUAS="es fi fr id ja ru rw sv tr uk zh_CN"
851 ZW_GNU_GETTEXT_SISTER_DIR
855 AM_CONDITIONAL(GENINSRC_NEVER, false)
858 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h errno.h sys/types.h limits.h locale.h time.h sys/stat.h)
861 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
862 # people who are not cross-compiling but are compiling cross-assemblers.
863 AC_MSG_CHECKING(whether compiling a cross-assembler)
864 if test "${host}" = "${target}"; then
868 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
870 AC_MSG_RESULT($cross_gas)
872 dnl ansidecl.h will deal with const
877 # VMS doesn't have unlink.
878 AC_CHECK_FUNCS(unlink remove, break)
879 AC_CHECK_FUNCS(sbrk setlocale)
880 AC_CHECK_FUNCS(strsignal)
884 # do we need the math library?
885 case "${need_libm}" in
892 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
893 # enough, but on some of those systems, the assert macro relies on requoting
897 # On some systems, the system header files may not declare malloc, realloc,
898 # and free. There are places where gas needs these functions to have been
899 # declared -- such as when taking their addresses.
907 #ifdef HAVE_STRINGS_H
919 # Does errno.h declare errno, or do we have to add a separate declaration
921 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
927 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
928 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
929 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
930 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
931 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
932 if test $gas_cv_decl_getopt_unistd_h = yes; then
933 AC_DEFINE([HAVE_DECL_GETOPT], 1,
934 [Is the prototype for getopt in <unistd.h> in the expected format?])
937 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
938 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
939 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
940 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
941 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
942 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
944 AC_CHECK_DECLS([free, getenv, malloc, mempcpy, realloc, stpcpy, strstr, vsnprintf, asprintf])
948 # Link in zlib if we can. This allows us to write compressed debug sections.
951 # Support for VMS timestamps via cross compile
953 if test "$ac_cv_header_time_h" = yes; then
954 GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
957 if test "$ac_cv_header_sys_stat_h" = yes; then
958 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
959 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
963 dnl Required for html, pdf, install-pdf and install-html targets.
964 AC_SUBST(datarootdir)
969 dnl This must come last.
971 dnl We used to make symlinks to files in the source directory, but now
972 dnl we just use the right name for .c files, and create .h files in
973 dnl the build directory which include the right .h file. Make sure
974 dnl the old symlinks don't exist, so that a reconfigure in an existing
975 dnl directory behaves reasonably.
977 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
978 AC_CONFIG_COMMANDS([default],
979 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
980 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
981 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
982 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
983 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
984 if test "x$cgen_cpu_prefix" != x ; then
985 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
987 [target_cpu_type=${target_cpu_type}
988 cgen_cpu_prefix=${cgen_cpu_prefix}
989 obj_format=${obj_format}