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) 2012-2014 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 mipsisa64 | mipsisa64el)
223 mipsisa64r2 | mipsisa64r2el)
226 mipsisa64r3 | mipsisa64r3el)
229 mipsisa64r5 | mipsisa64r5el)
232 mipstx39 | mipstx39el)
235 mips64vr | mips64vrel)
238 mipsisa32r2* | mipsisa64r2*)
240 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
243 mips64* | mipsisa64* | mipsisa32*)
245 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
250 mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
254 AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
257 # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
258 # binaries. It's a GNU extension that some OSes don't understand.
267 # Decide whether to generate 32-bit or 64-bit code by default.
268 # Used to resolve -march=from-abi when an embedded ABI is selected.
270 mips64*-*-* | mipsisa64*-*-*)
277 # Decide which ABI to target by default.
279 mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* | mips64*-kfreebsd*-gnu)
280 mips_default_abi=N32_ABI
282 mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
283 mips_default_abi=O32_ABI
286 mips_default_abi=N64_ABI
289 mips_default_abi=NO_ABI
292 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
293 [Default CPU for MIPS targets. ])
294 AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
295 [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
296 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
297 [Generate 64-bit code by default on MIPS targets. ])
298 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
299 [Choose a default ABI for MIPS targets. ])
303 # Do we need the opcodes library?
311 case "${enable_shared}" in
312 yes) shared_opcodes=true ;;
313 *opcodes*) shared_opcodes=true ;;
314 *) shared_opcodes=false ;;
319 # Any other special object files needed ?
323 echo ${extra_objects} | grep -s "bfin-parse.o"
324 if test $? -ne 0 ; then
325 extra_objects="$extra_objects bfin-parse.o"
328 echo ${extra_objects} | grep -s "bfin-lex-wrapper.o"
329 if test $? -ne 0 ; then
330 extra_objects="$extra_objects bfin-lex-wrapper.o"
334 epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
345 case ${extra_objects} in
347 *) extra_objects="$extra_objects m68k-parse.o" ;;
356 echo ${extra_objects} | grep -s "itbl-parse.o"
357 if test $? -ne 0 ; then
358 extra_objects="$extra_objects itbl-parse.o"
361 echo ${extra_objects} | grep -s "itbl-lex-wrapper.o"
362 if test $? -ne 0 ; then
363 extra_objects="$extra_objects itbl-lex-wrapper.o"
366 echo ${extra_objects} | grep -s "itbl-ops.o"
367 if test $? -ne 0 ; then
368 extra_objects="$extra_objects itbl-ops.o"
377 # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
378 # based on arch_name.
379 AC_MSG_CHECKING(for default configuration of --with-arch)
380 if test "x${with_arch}" != x; then
382 v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
383 AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
384 [Define value for nds32_arch_name])
387 AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
391 AC_MSG_RESULT($with_arch)
393 # Decide features one by one.
394 AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
395 if test "x${enable_dx_regs}" == xyes; then
396 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
397 [Define value for nds32_dx_regs])
399 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
400 [Define default value for nds32_dx_regs])
402 AC_MSG_RESULT($enable_dx_regs)
404 AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
405 if test "x${enable_perf_ext}" == xno; then
406 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
407 [Define value for nds32_perf_ext])
409 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
410 [Define default value for nds32_perf_ext])
412 AC_MSG_RESULT($enable_perf_ext)
414 AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
415 if test "x${enable_perf_ext2}" == xno; then
416 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
417 [Define value for nds32_perf_ext2])
419 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
420 [Define default value for nds32_perf_ext2])
422 AC_MSG_RESULT($enable_perf_ext2)
424 AC_MSG_CHECKING(for default configuration of --enable-string-ext)
425 if test "x${enable_string_ext}" == xno; then
426 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
427 [Define value for nds32_string_ext])
429 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
430 [Define default value for nds32_string_ext])
432 AC_MSG_RESULT($enable_string_ext)
434 AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
435 if test "x${enable_audio_ext}" == xno; then
436 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
437 [Define value for nds32_audio_ext])
439 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
440 [Define default value for nds32_audio_ext])
442 AC_MSG_RESULT($enable_audio_ext)
446 if test $this_target = $target ; then
447 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
452 echo ${extra_objects} | grep -s "rl78-parse.o"
453 if test $? -ne 0 ; then
454 extra_objects="$extra_objects rl78-parse.o"
459 echo ${extra_objects} | grep -s "rx-parse.o"
460 if test $? -ne 0 ; then
461 extra_objects="$extra_objects rx-parse.o"
474 echo ${extra_objects} | grep -s "xtensa-relax.o"
475 if test $? -ne 0 ; then
476 extra_objects="$extra_objects xtensa-relax.o"
484 if test $using_cgen = yes ; then
485 case "x${extra_objects}" in
487 *) extra_objects="$extra_objects cgen.o" ;;
491 # See if we really can support this configuration with the emulation code.
493 if test $this_target = $target ; then
499 vms) extra_objects="$extra_objects te-vms.o" ;;
502 # From target name and format, produce a list of supported emulations.
504 case ${generic_target}-${fmt} in
505 mips-*-*-*) case "$endian" in
506 big) emulation="mipsbelf mipslelf mipself" ;;
507 *) emulation="mipslelf mipsbelf mipself" ;;
509 # i386-pc-pe-coff != i386-pc-coff.
511 # Uncommenting the next line will turn on support for i386 AOUT
512 # for the default linux configuration
513 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
515 i386-*-aout) emulation="i386aout" ;;
516 i386-*-coff) emulation="i386coff" ;;
517 i386-*-elf) emulation="i386elf" ;;
519 # Always all formats. The first stated emulation becomes the default.
520 cris-*-*aout*) emulation="crisaout criself" ;;
521 cris-*-*) emulation="criself crisaout" ;;
524 emulations="$emulations $emulation"
528 # Turn on all targets if possible
529 if test ${all_targets} = "yes"; then
530 case ${target_cpu_type} in
532 case ${obj_format} in
534 emulations="$emulations i386coff i386elf"
537 emulations="$emulations i386aout i386elf"
540 emulations="$emulations i386aout i386coff"
545 case ${obj_format} in
547 emulations="$emulations i386coff i386elf"
550 emulations="$emulations i386aout i386elf"
553 emulations="$emulations i386aout i386coff"
560 # PE code has way too many macros tweaking behaviour
562 pe*) emulations="" ;;
565 # Assign floating point type. Most processors with FP support
566 # IEEE FP. On those that don't support FP at all, usually IEEE
568 case ${target_cpu} in
569 vax | pdp11 ) atof=vax ;;
573 case "${obj_format}" in
574 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
577 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
579 if test $using_cgen = yes ; then
580 case ${target_cpu} in
582 cgen_cpu_prefix=or1k ;;
583 *) cgen_cpu_prefix=${target_cpu} ;;
585 AC_SUBST(cgen_cpu_prefix)
586 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
590 dnl Make sure the desired support files exist.
593 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
594 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
597 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
598 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
601 # Some COFF configurations want these random other flags set.
602 case ${obj_format} in
604 case ${target_cpu_type} in
605 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
606 m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
607 m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
608 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
613 # Getting this done right is going to be a bitch. Each configuration specified
614 # with --enable-targets=... should be checked for environment, format, cpu
617 # For each configuration, the necessary object file support code must be linked
618 # in. This might be only one, it might be up to four. The necessary emulation
619 # code needs to be provided, too.
621 # And then there's "--enable-targets=all"....
623 # For now, just always do it for MIPS ELF configurations. Sigh.
625 formats="${obj_format}"
629 for em in . $emulations ; do
632 mipsbelf | mipslelf | mipself)
633 fmt=elf file=mipself ;;
641 formats="$formats $fmt"
642 emfiles="$emfiles e-$file.o"
643 EMULATIONS="$EMULATIONS &$em,"
647 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
648 for fmt in $formats ; do
650 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
651 bout) AC_DEFINE(OBJ_MAYBE_BOUT, 1, [b.out support?]) ;;
652 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
653 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
654 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
655 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
656 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
658 extra_objects="$extra_objects obj-$fmt.o"
662 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
663 DEFAULT_EMULATION=`set . $emulations ; echo $2`
664 # e-mipself has more than one emulation per file, e-i386* has just one at the
665 # moment. If only one emulation is specified, then don't define
666 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
667 case "${obj_format}${emfiles}" in
669 extra_objects="$extra_objects $emfiles"
670 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
673 AC_SUBST(extra_objects)
674 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
675 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
676 [Default emulation.])
678 reject_dev_configs=yes
680 case ${reject_dev_configs}-${dev} in
682 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
686 AC_SUBST(target_cpu_type)
689 AC_SUBST(install_tooldir)
691 dnl AC_SUBST(emulation)
693 # do we need the opcodes library?
694 case "${need_opcodes}" in
696 OPCODES_LIB=../opcodes/libopcodes.la
700 AC_SUBST(OPCODES_LIB)
702 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
703 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
704 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
705 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
706 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
711 ALL_LINGUAS="fr tr es rw id ru fi ja"
712 ZW_GNU_GETTEXT_SISTER_DIR
716 AM_CONDITIONAL(GENINSRC_NEVER, false)
719 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h errno.h sys/types.h limits.h locale.h time.h sys/stat.h)
722 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
723 # people who are not cross-compiling but are compiling cross-assemblers.
724 AC_MSG_CHECKING(whether compiling a cross-assembler)
725 if test "${host}" = "${target}"; then
729 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
731 AC_MSG_RESULT($cross_gas)
733 dnl ansidecl.h will deal with const
738 # VMS doesn't have unlink.
739 AC_CHECK_FUNCS(unlink remove, break)
740 AC_CHECK_FUNCS(sbrk setlocale)
744 # do we need the math library?
745 case "${need_libm}" in
752 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
753 # enough, but on some of those systems, the assert macro relies on requoting
757 # On some systems, the system header files may not declare malloc, realloc,
758 # and free. There are places where gas needs these functions to have been
759 # declared -- such as when taking their addresses.
767 #ifdef HAVE_STRINGS_H
779 # Does errno.h declare errno, or do we have to add a separate declaration
781 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
787 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
788 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
789 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
790 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
791 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
792 if test $gas_cv_decl_getopt_unistd_h = yes; then
793 AC_DEFINE([HAVE_DECL_GETOPT], 1,
794 [Is the prototype for getopt in <unistd.h> in the expected format?])
797 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
798 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
799 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
800 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
801 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
802 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
804 AC_CHECK_DECLS([free, getenv, malloc, mempcpy, realloc, stpcpy, strstr, vsnprintf])
808 # Link in zlib if we can. This allows us to write compressed debug sections.
811 # Support for VMS timestamps via cross compile
813 if test "$ac_cv_header_time_h" = yes; then
814 GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
817 if test "$ac_cv_header_sys_stat_h" = yes; then
818 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
819 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
823 dnl Required for html, pdf, install-pdf and install-html targets.
824 AC_SUBST(datarootdir)
829 dnl This must come last.
831 dnl We used to make symlinks to files in the source directory, but now
832 dnl we just use the right name for .c files, and create .h files in
833 dnl the build directory which include the right .h file. Make sure
834 dnl the old symlinks don't exist, so that a reconfigure in an existing
835 dnl directory behaves reasonably.
837 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
838 AC_CONFIG_COMMANDS([default],
839 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
840 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
841 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
842 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
843 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
844 if test "x$cgen_cpu_prefix" != x ; then
845 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
847 [target_cpu_type=${target_cpu_type}
848 cgen_cpu_prefix=${cgen_cpu_prefix}
849 obj_format=${obj_format}