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) 2012-2015 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
24 m4_include([../bfd/version.m4])
25 AC_INIT([gas], BFD_VERSION)
26 AC_CONFIG_SRCDIR(as.h)
28 dnl Autoconf 2.57 will find the aux dir without this. However, unless
29 dnl we specify this explicitly, automake-1.7 will assume that ylwrap is in
30 dnl gas/ instead of gas/../.
39 AC_USE_SYSTEM_EXTENSIONS
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.])
71 # Generate a header file
72 AC_CONFIG_HEADERS(config.h:config.in)
75 AH_VERBATIM([00_CONFIG_H_CHECK],
76 [/* Check that config.h is #included before system headers
77 (this works only for glibc, but that should be enough). */
78 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
79 # error config.h must be #included before system headers
81 #define __CONFIG_H__ 1])
83 # If we are on a DOS filesystem, we must use gdb.ini rather than
86 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
88 AC_CONFIG_FILES(gdb.ini:gdbinit.in)
92 AC_CONFIG_FILES(.gdbinit:gdbinit.in)
97 #We need this for the host. BOUT header is in host order.
102 # Makefile target for installing gas in $(tooldir)/bin.
103 install_tooldir=install-exec-tooldir
107 if test -n "$enable_targets" ; then
108 for t in `echo $enable_targets | sed 's/,/ /g'`; do
109 if test $t = "all"; then
113 result=`$ac_config_sub $t 2>/dev/null`
114 if test -n "$result" ; then
115 canon_targets="$canon_targets $result"
117 # # Permit "all", etc. We don't support it yet though.
118 # canon_targets="$canon_targets $t"
121 GAS_UNIQ(canon_targets)
126 for this_target in $target $canon_targets ; do
129 . ${srcdir}/configure.tgt
131 case ${target_cpu} in
133 AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
134 [Default CRIS architecture.])
138 if test ${this_target} = $target ; then
139 target_cpu_type=${cpu_type}
140 elif test ${target_cpu_type} != ${cpu_type} ; then
144 generic_target=${cpu_type}-${target_vendor}-${target_os}
145 case ${generic_target} in
147 if test ${this_target} = $target; then
148 AC_DEFINE(SCO_ELF, 1, [Define if defaulting to ELF on SCO 5.])
155 AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
159 AC_MSG_WARN(GAS support for ${generic_target} is preliminary and a work in progress)
168 AC_DEFINE(AIX_WEAK_SUPPORT, 1,
169 [Define if using AIX 5.2 value for C_WEAKEXT.])
172 if test ${this_target} = $target; then
173 AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
174 [Define if default target is PowerPC Solaris.])
176 if test x${endian} = xbig; then
177 AC_MSG_ERROR(Solaris must be configured little endian)
182 AC_DEFINE(TARGET_SYMBIAN, 1, [Define if target is Symbian OS.])
186 if test ${this_target} = $target ; then
188 if test x${endian} = xbig; then
190 elif test x${endian} = xlittle; then
193 if test x${endian_def} != x; then
194 AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
195 [Define as 1 if big endian.])
199 # Other random stuff.
203 # Set mips_cpu to the name of the default CPU.
204 case ${target_cpu} in
205 mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
208 mipsisa32 | mipsisa32el)
211 mipsisa32r2 | mipsisa32r2el)
214 mipsisa32r3 | mipsisa32r3el)
217 mipsisa32r5 | mipsisa32r5el)
220 mipsisa32r6 | mipsisa32r6el)
223 mipsisa64 | mipsisa64el)
226 mipsisa64r2 | mipsisa64r2el)
229 mipsisa64r3 | mipsisa64r3el)
232 mipsisa64r5 | mipsisa64r5el)
235 mipsisa64r6 | mipsisa64r6el)
238 mipstx39 | mipstx39el)
241 mips64vr | mips64vrel)
244 mipsisa32r2* | mipsisa64r2*)
246 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
249 mipsisa32r6* | mipsisa64r6*)
251 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
254 mips64* | mipsisa64* | mipsisa32*)
256 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
261 mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
265 AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
268 # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
269 # binaries. It's a GNU extension that some OSes don't understand.
278 # Decide whether to generate 32-bit or 64-bit code by default.
279 # Used to resolve -march=from-abi when an embedded ABI is selected.
281 mips64*-*-* | mipsisa64*-*-*)
288 # Decide which ABI to target by default.
290 mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* | mips64*-kfreebsd*-gnu)
291 mips_default_abi=N32_ABI
293 mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
294 mips_default_abi=O32_ABI
297 mips_default_abi=N64_ABI
300 mips_default_abi=NO_ABI
303 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
304 [Default CPU for MIPS targets. ])
305 AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
306 [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
307 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
308 [Generate 64-bit code by default on MIPS targets. ])
309 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
310 [Choose a default ABI for MIPS targets. ])
314 # Do we need the opcodes library?
322 case "${enable_shared}" in
323 yes) shared_opcodes=true ;;
324 *opcodes*) shared_opcodes=true ;;
325 *) shared_opcodes=false ;;
330 # Any other special object files needed ?
334 echo ${extra_objects} | grep -s "bfin-parse.o"
335 if test $? -ne 0 ; then
336 extra_objects="$extra_objects bfin-parse.o"
339 echo ${extra_objects} | grep -s "bfin-lex-wrapper.o"
340 if test $? -ne 0 ; then
341 extra_objects="$extra_objects bfin-lex-wrapper.o"
345 epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
356 case ${extra_objects} in
358 *) extra_objects="$extra_objects m68k-parse.o" ;;
367 echo ${extra_objects} | grep -s "itbl-parse.o"
368 if test $? -ne 0 ; then
369 extra_objects="$extra_objects itbl-parse.o"
372 echo ${extra_objects} | grep -s "itbl-lex-wrapper.o"
373 if test $? -ne 0 ; then
374 extra_objects="$extra_objects itbl-lex-wrapper.o"
377 echo ${extra_objects} | grep -s "itbl-ops.o"
378 if test $? -ne 0 ; then
379 extra_objects="$extra_objects itbl-ops.o"
388 # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
389 # based on arch_name.
390 AC_MSG_CHECKING(for default configuration of --with-arch)
391 if test "x${with_arch}" != x; then
393 v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
394 AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
395 [Define value for nds32_arch_name])
398 AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
402 AC_MSG_RESULT($with_arch)
404 # Decide features one by one.
405 AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
406 if test "x${enable_dx_regs}" == xyes; then
407 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
408 [Define value for nds32_dx_regs])
410 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
411 [Define default value for nds32_dx_regs])
413 AC_MSG_RESULT($enable_dx_regs)
415 AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
416 if test "x${enable_perf_ext}" == xno; then
417 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
418 [Define value for nds32_perf_ext])
420 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
421 [Define default value for nds32_perf_ext])
423 AC_MSG_RESULT($enable_perf_ext)
425 AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
426 if test "x${enable_perf_ext2}" == xno; then
427 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
428 [Define value for nds32_perf_ext2])
430 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
431 [Define default value for nds32_perf_ext2])
433 AC_MSG_RESULT($enable_perf_ext2)
435 AC_MSG_CHECKING(for default configuration of --enable-string-ext)
436 if test "x${enable_string_ext}" == xno; then
437 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
438 [Define value for nds32_string_ext])
440 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
441 [Define default value for nds32_string_ext])
443 AC_MSG_RESULT($enable_string_ext)
445 AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
446 if test "x${enable_audio_ext}" == xno; then
447 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
448 [Define value for nds32_audio_ext])
450 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
451 [Define default value for nds32_audio_ext])
453 AC_MSG_RESULT($enable_audio_ext)
457 if test $this_target = $target ; then
458 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
463 echo ${extra_objects} | grep -s "rl78-parse.o"
464 if test $? -ne 0 ; then
465 extra_objects="$extra_objects rl78-parse.o"
470 echo ${extra_objects} | grep -s "rx-parse.o"
471 if test $? -ne 0 ; then
472 extra_objects="$extra_objects rx-parse.o"
485 echo ${extra_objects} | grep -s "xtensa-relax.o"
486 if test $? -ne 0 ; then
487 extra_objects="$extra_objects xtensa-relax.o"
495 if test $using_cgen = yes ; then
496 case "x${extra_objects}" in
498 *) extra_objects="$extra_objects cgen.o" ;;
502 # See if we really can support this configuration with the emulation code.
504 if test $this_target = $target ; then
510 vms) extra_objects="$extra_objects te-vms.o" ;;
513 # From target name and format, produce a list of supported emulations.
515 case ${generic_target}-${fmt} in
516 mips-*-*-*) case "$endian" in
517 big) emulation="mipsbelf mipslelf mipself" ;;
518 *) emulation="mipslelf mipsbelf mipself" ;;
520 # i386-pc-pe-coff != i386-pc-coff.
522 # Uncommenting the next line will turn on support for i386 AOUT
523 # for the default linux configuration
524 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
526 i386-*-aout) emulation="i386aout" ;;
527 i386-*-coff) emulation="i386coff" ;;
528 i386-*-elf) emulation="i386elf" ;;
530 # Always all formats. The first stated emulation becomes the default.
531 cris-*-*aout*) emulation="crisaout criself" ;;
532 cris-*-*) emulation="criself crisaout" ;;
535 emulations="$emulations $emulation"
539 # Turn on all targets if possible
540 if test ${all_targets} = "yes"; then
541 case ${target_cpu_type} in
543 case ${obj_format} in
545 emulations="$emulations i386coff i386elf"
548 emulations="$emulations i386aout i386elf"
551 emulations="$emulations i386aout i386coff"
556 case ${obj_format} in
558 emulations="$emulations i386coff i386elf"
561 emulations="$emulations i386aout i386elf"
564 emulations="$emulations i386aout i386coff"
571 # PE code has way too many macros tweaking behaviour
573 pe*) emulations="" ;;
576 # Assign floating point type. Most processors with FP support
577 # IEEE FP. On those that don't support FP at all, usually IEEE
579 case ${target_cpu} in
580 vax | pdp11 ) atof=vax ;;
584 case "${obj_format}" in
585 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
588 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
590 if test $using_cgen = yes ; then
591 case ${target_cpu} in
593 cgen_cpu_prefix=or1k ;;
594 *) cgen_cpu_prefix=${target_cpu} ;;
596 AC_SUBST(cgen_cpu_prefix)
597 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
601 dnl Make sure the desired support files exist.
604 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
605 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
608 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
609 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
612 # Some COFF configurations want these random other flags set.
613 case ${obj_format} in
615 case ${target_cpu_type} in
616 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
617 m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
618 m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
619 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
624 # Getting this done right is going to be a bitch. Each configuration specified
625 # with --enable-targets=... should be checked for environment, format, cpu
628 # For each configuration, the necessary object file support code must be linked
629 # in. This might be only one, it might be up to four. The necessary emulation
630 # code needs to be provided, too.
632 # And then there's "--enable-targets=all"....
634 # For now, just always do it for MIPS ELF configurations. Sigh.
636 formats="${obj_format}"
640 for em in . $emulations ; do
643 mipsbelf | mipslelf | mipself)
644 fmt=elf file=mipself ;;
652 formats="$formats $fmt"
653 emfiles="$emfiles e-$file.o"
654 EMULATIONS="$EMULATIONS &$em,"
658 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
659 for fmt in $formats ; do
661 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
662 bout) AC_DEFINE(OBJ_MAYBE_BOUT, 1, [b.out support?]) ;;
663 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
664 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
665 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
666 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
667 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
669 extra_objects="$extra_objects obj-$fmt.o"
673 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
674 DEFAULT_EMULATION=`set . $emulations ; echo $2`
675 # e-mipself has more than one emulation per file, e-i386* has just one at the
676 # moment. If only one emulation is specified, then don't define
677 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
678 case "${obj_format}${emfiles}" in
680 extra_objects="$extra_objects $emfiles"
681 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
684 AC_SUBST(extra_objects)
685 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
686 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
687 [Default emulation.])
689 reject_dev_configs=yes
691 case ${reject_dev_configs}-${dev} in
693 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
697 AC_SUBST(target_cpu_type)
700 AC_SUBST(install_tooldir)
702 dnl AC_SUBST(emulation)
704 # do we need the opcodes library?
705 case "${need_opcodes}" in
707 OPCODES_LIB=../opcodes/libopcodes.la
711 AC_SUBST(OPCODES_LIB)
713 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
714 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
715 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
716 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
717 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
722 ALL_LINGUAS="fr tr es rw id ru fi ja"
723 ZW_GNU_GETTEXT_SISTER_DIR
727 AM_CONDITIONAL(GENINSRC_NEVER, false)
730 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h errno.h sys/types.h limits.h locale.h time.h sys/stat.h)
733 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
734 # people who are not cross-compiling but are compiling cross-assemblers.
735 AC_MSG_CHECKING(whether compiling a cross-assembler)
736 if test "${host}" = "${target}"; then
740 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
742 AC_MSG_RESULT($cross_gas)
744 dnl ansidecl.h will deal with const
749 # VMS doesn't have unlink.
750 AC_CHECK_FUNCS(unlink remove, break)
751 AC_CHECK_FUNCS(sbrk setlocale)
755 # do we need the math library?
756 case "${need_libm}" in
763 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
764 # enough, but on some of those systems, the assert macro relies on requoting
768 # On some systems, the system header files may not declare malloc, realloc,
769 # and free. There are places where gas needs these functions to have been
770 # declared -- such as when taking their addresses.
778 #ifdef HAVE_STRINGS_H
790 # Does errno.h declare errno, or do we have to add a separate declaration
792 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
798 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
799 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
800 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
801 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
802 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
803 if test $gas_cv_decl_getopt_unistd_h = yes; then
804 AC_DEFINE([HAVE_DECL_GETOPT], 1,
805 [Is the prototype for getopt in <unistd.h> in the expected format?])
808 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
809 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
810 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
811 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
812 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
813 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
815 AC_CHECK_DECLS([free, getenv, malloc, mempcpy, realloc, stpcpy, strstr, vsnprintf])
819 # Link in zlib if we can. This allows us to write compressed debug sections.
822 # Support for VMS timestamps via cross compile
824 if test "$ac_cv_header_time_h" = yes; then
825 GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
828 if test "$ac_cv_header_sys_stat_h" = yes; then
829 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
830 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
834 dnl Required for html, pdf, install-pdf and install-html targets.
835 AC_SUBST(datarootdir)
840 dnl This must come last.
842 dnl We used to make symlinks to files in the source directory, but now
843 dnl we just use the right name for .c files, and create .h files in
844 dnl the build directory which include the right .h file. Make sure
845 dnl the old symlinks don't exist, so that a reconfigure in an existing
846 dnl directory behaves reasonably.
848 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
849 AC_CONFIG_COMMANDS([default],
850 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
851 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
852 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
853 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
854 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
855 if test "x$cgen_cpu_prefix" != x ; then
856 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
858 [target_cpu_type=${target_cpu_type}
859 cgen_cpu_prefix=${cgen_cpu_prefix}
860 obj_format=${obj_format}