1 dnl Process this file with autoconf to produce a configure script
4 AC_CONFIG_SRCDIR([xmalloc.c])
5 AC_CONFIG_MACRO_DIRS([../config])
7 # This works around the fact that libtool configuration may change LD
8 # for this particular configuration, but some shells, instead of
9 # keeping the changes in LD private, export them just because LD is
10 # exported. We don't use libtool yet, but some day we might, so...
11 ORIGINAL_LD_FOR_MULTILIBS=$LD
13 dnl We use these options to decide which functions to include.
14 AC_ARG_WITH(target-subdir,
15 [ --with-target-subdir=SUBDIR Configuring in a subdirectory for target])
16 AC_ARG_WITH(build-subdir,
17 [ --with-build-subdir=SUBDIR Configuring in a subdirectory for build])
18 AC_ARG_WITH(cross-host,
19 [ --with-cross-host=HOST Configuring with a cross compiler])
21 [ --with-newlib Configuring with newlib])
23 if test "${srcdir}" = "."; then
24 if test -n "${with_build_subdir}"; then
25 libiberty_topdir="${srcdir}/../.."
27 elif test -z "${with_target_subdir}"; then
28 libiberty_topdir="${srcdir}/.."
30 if test "${with_target_subdir}" != "."; then
31 libiberty_topdir="${srcdir}/${with_multisrctop}../.."
33 libiberty_topdir="${srcdir}/${with_multisrctop}.."
37 libiberty_topdir="${srcdir}/.."
39 AC_SUBST(libiberty_topdir)
40 AC_CONFIG_AUX_DIR($libiberty_topdir)
42 dnl Very limited version of automake's enable-maintainer-mode
44 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
45 dnl maintainer-mode is disabled by default
46 AC_ARG_ENABLE(maintainer-mode,
47 [ --enable-maintainer-mode
48 enable make rules and dependencies not useful
49 (and sometimes confusing) to the casual installer],
50 maintainer_mode=$enableval,
53 AC_MSG_RESULT($maintainer_mode)
55 if test "$maintainer_mode" = "yes"; then
65 if test -z "$ETAGS"; then
70 # Do we have a single-tree copy of texinfo? Even if we do, we can't
71 # rely on it - libiberty is built before texinfo.
72 AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
73 if test "x$MAKEINFO" = "x"; then
74 MAKEINFO="@echo makeinfo missing; true"
82 *** Makeinfo is missing. Info documentation will not be built.])
85 case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in
87 MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true"
90 *** Makeinfo is too old. Info documentation will not be built.])
99 AC_CHECK_PROG(PERL, perl, perl, )
100 if test x"$PERL" = x""; then
109 dnl When we start using automake:
110 dnl AM_INIT_AUTOMAKE(libiberty, 1.0)
112 dnl These must be called before AM_PROG_LIBTOOL, because it may want
113 dnl to call AC_CHECK_PROG.
114 AC_CHECK_TOOL(AR, ar)
115 AC_CHECK_TOOL(RANLIB, ranlib, :)
117 dnl When switching to automake, replace the following with AM_ENABLE_MULTILIB.
118 # Add --enable-multilib to configure.
119 # Default to --enable-multilib
120 AC_ARG_ENABLE(multilib,
121 [ --enable-multilib build many library versions (default)],
122 [case "$enableval" in
125 *) AC_MSG_ERROR([bad value $enableval for multilib option]) ;;
129 # Even if the default multilib is not a cross compilation,
130 # it may be that some of the other multilibs are.
131 if test $cross_compiling = no && test $multilib = yes \
132 && test "x${with_multisubdir}" != x ; then
133 cross_compiling=maybe
136 # We may wish to install the target headers somewhere.
137 AC_MSG_CHECKING([whether to install libiberty headers and static library])
138 dnl install-libiberty is disabled by default
140 AC_ARG_ENABLE(install-libiberty,
141 [ --enable-install-libiberty Install headers and library for end users],
142 enable_install_libiberty=$enableval,
143 enable_install_libiberty=no)dnl
145 # Option parsed, now set things appropriately.
146 case x"$enable_install_libiberty" in
148 target_header_dir=libiberty
154 # This could be sanity-checked in various ways...
155 target_header_dir="${enable_install_libiberty}"
158 AC_MSG_RESULT($enable_install_libiberty)
159 AC_MSG_NOTICE([target_header_dir = $target_header_dir])
167 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \
168 -Wstrict-prototypes \
169 -Wshadow=local], [ac_libiberty_warn_cflags])
170 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags])
173 # autoconf is lame and doesn't give us any substitution variable for this.
174 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
175 NO_MINUS_C_MINUS_O=yes
177 OUTPUT_OPTION='-o $@'
179 AC_SUBST(NO_MINUS_C_MINUS_O)
180 AC_SUBST(OUTPUT_OPTION)
186 dnl When we start using libtool:
187 dnl Default to a non shared library. This may be overridden by the
188 dnl configure option --enable-shared.
189 dnl AM_DISABLE_SHARED
191 dnl When we start using libtool:
194 dnl When we start using automake:
195 dnl AM_CONFIG_HEADER(config.h:config.in)
196 AC_CONFIG_HEADER(config.h:config.in)
198 dnl When we start using automake:
199 dnl AM_MAINTAINER_MODE
202 dnl When we start using automake:
206 # Don't build the shared library for build.
207 if [[ -n "${with_build_subdir}" ]]; then
213 rs6000-ibm-aix3.1 | rs6000-ibm-aix)
215 *-*-cxux7*) frag=mh-cxux7 ;;
216 *-*-freebsd2.1.*) frag=mh-fbsd21 ;;
217 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;;
218 i370-*-opened*) frag=mh-openedition ;;
219 i[[34567]]86-*-windows*) frag=mh-windows ;;
222 if [[ -n "${frag}" ]]; then
223 frag=${libiberty_topdir}/libiberty/config/$frag
228 # If they didn't specify --enable-shared, don't generate shared libs.
229 case "${enable_shared}" in
236 # ...unless --enable-host-shared was passed from top-level config:
237 if [[ "${enable_host_shared}" = "yes" ]]; then
241 if [[ "${shared}" != "yes" ]]; then
247 case " ${CFLAGS} " in
248 *\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;;
249 *\ -fsanitize=hwaddress\ *) NOASANFLAG=-fno-sanitize=hwaddress ;;
253 GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
254 AC_SUBST(CET_HOST_FLAGS)
256 echo "# Warning: this fragment is automatically generated" > temp-frag
258 if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
259 echo "Appending ${frag} to xhost-mkfrag"
260 echo "# Following fragment copied from ${frag}" >> temp-frag
261 cat ${frag} >> temp-frag
264 # record if we want to build shared libs.
265 if [[ "${shared}" = "yes" ]]; then
266 echo enable_shared = yes >> temp-frag
268 echo enable_shared = no >> temp-frag
272 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
274 host_makefile_frag=${frag}
275 AC_SUBST_FILE(host_makefile_frag)
277 # It's OK to check for header files. Although the compiler may not be
278 # able to link anything, it had better be able to at least compile
280 AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h malloc.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h stdint.h stdio_ext.h process.h sys/prctl.h)
284 libiberty_AC_DECLARE_ERRNO
286 # Determine sizes of some types.
287 AC_CHECK_SIZEOF([int])
288 AC_CHECK_SIZEOF([long])
289 AC_CHECK_SIZEOF([size_t])
291 # Check for presense of long long
292 AC_CHECK_TYPE([long long],
293 [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])],
296 # Look for a 64-bit type.
297 AC_MSG_CHECKING([for a 64-bit type])
298 AC_CACHE_VAL(liberty_cv_uint64,
300 [#ifdef HAVE_STDINT_H
303 [extern uint64_t foo;],
304 liberty_cv_uint64=uint64_t,
306 [#ifdef HAVE_LIMITS_H
312 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
313 liberty_cv_uint64="unsigned long",
315 [#ifdef HAVE_LIMITS_H
321 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
322 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
323 AC_MSG_RESULT($liberty_cv_uint64)
324 if test "$liberty_cv_uint64" != none; then
325 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
326 [Define to an unsigned 64-bit type available in the compiler.])
333 # Given the above check, we always have uintptr_t or a fallback
334 # definition. So define HAVE_UINTPTR_T in case any imported code
336 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
340 # This is the list of functions which libiberty will provide if they
341 # are not available on the host.
344 funcs="$funcs atexit"
345 funcs="$funcs basename"
348 funcs="$funcs bsearch"
350 funcs="$funcs calloc"
353 funcs="$funcs getcwd"
354 funcs="$funcs getpagesize"
355 funcs="$funcs gettimeofday"
357 funcs="$funcs insque"
358 funcs="$funcs memchr"
359 funcs="$funcs memcmp"
360 funcs="$funcs memcpy"
361 funcs="$funcs memmem"
362 funcs="$funcs memmove"
363 funcs="$funcs mempcpy"
364 funcs="$funcs memset"
365 funcs="$funcs mkstemps"
366 funcs="$funcs putenv"
367 funcs="$funcs random"
368 funcs="$funcs rename"
369 funcs="$funcs rindex"
370 funcs="$funcs setenv"
371 funcs="$funcs snprintf"
372 funcs="$funcs sigsetmask"
373 funcs="$funcs stpcpy"
374 funcs="$funcs stpncpy"
375 funcs="$funcs strcasecmp"
376 funcs="$funcs strchr"
377 funcs="$funcs strdup"
378 funcs="$funcs strncasecmp"
379 funcs="$funcs strndup"
380 funcs="$funcs strnlen"
381 funcs="$funcs strrchr"
382 funcs="$funcs strstr"
383 funcs="$funcs strtod"
384 funcs="$funcs strtol"
385 funcs="$funcs strtoul"
386 funcs="$funcs strtoll"
387 funcs="$funcs strtoull"
388 funcs="$funcs strverscmp"
389 funcs="$funcs tmpnam"
390 funcs="$funcs vasprintf"
391 funcs="$funcs vfprintf"
392 funcs="$funcs vprintf"
393 funcs="$funcs vsnprintf"
394 funcs="$funcs vsprintf"
395 funcs="$funcs waitpid"
396 funcs="$funcs setproctitle"
398 # Also in the old function.def file: alloca, vfork, getopt.
400 vars="sys_errlist sys_nerr sys_siglist"
402 checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \
403 getsysinfo gettimeofday on_exit pipe2 psignal pstat_getdynamic pstat_getstatic \
404 realpath setrlimit spawnve spawnvpe strerror strsignal sysconf sysctl \
405 sysmp table times wait3 wait4"
407 #Â Darwin has sbrk, but it is deprecated and that produces build-time warnings
408 #Â so do not check for it.
411 *) checkfuncs="$checkfuncs sbrk"
414 # These are neither executed nor required, but they help keep
415 # autoheader happy without adding a bunch of text to acconfig.h.
416 if test "x" = "y"; then
417 AC_CHECK_FUNCS(asprintf atexit \
418 basename bcmp bcopy bsearch bzero \
419 calloc canonicalize_file_name clock \
422 getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \
424 memchr memcmp memcpy memmem memmove memset mkstemps \
426 pipe2 psignal pstat_getdynamic pstat_getstatic putenv \
427 random realpath rename rindex \
428 sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \
429 stpcpy stpncpy strcasecmp strchr strdup \
430 strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \
431 strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \
433 vasprintf vfprintf vprintf vsprintf \
435 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull, strnlen])
436 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
437 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
438 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
441 # For each of these functions, if the host does not provide the
442 # function we want to put FN.o in LIBOBJS, and if the host does
443 # provide the function, we want to define HAVE_FN in config.h.
447 if test -n "${with_target_subdir}"; then
449 # We are being configured as a target library. AC_REPLACE_FUNCS
450 # may not work correctly, because the compiler may not be able to
451 # link executables. Note that we may still be being configured
454 # If we are being configured for newlib, we know which functions
455 # newlib provide and which ones we will be expected to provide.
457 if test "x${with_newlib}" = "xyes"; then
458 AC_LIBOBJ([asprintf])
459 AC_LIBOBJ([basename])
463 AC_LIBOBJ([vasprintf])
467 asprintf | basename | insque | random | strdup | vasprintf)
470 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
471 AC_DEFINE_UNQUOTED($n)
476 # newlib doesnt provide any of the variables in $vars, so we
477 # dont have to check them here.
479 # Of the functions in $checkfuncs, newlib only has strerror.
480 AC_DEFINE(HAVE_STRERROR)
486 # If we are being configured for Mingw, we know which functions
487 # Mingw provides and which ones we will be expected to provide.
491 AC_LIBOBJ([asprintf])
492 AC_LIBOBJ([basename])
498 AC_LIBOBJ([getpagesize])
502 AC_LIBOBJ([mkstemps])
505 AC_LIBOBJ([sigsetmask])
510 AC_LIBOBJ([strverscmp])
511 AC_LIBOBJ([vasprintf])
516 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid)
519 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
520 AC_DEFINE_UNQUOTED($n)
525 # Mingw doesnt provide any of the variables in $vars, so we
526 # dont have to check them here.
528 # Of the functions in $checkfuncs, Mingw only has strerror.
529 AC_DEFINE(HAVE_STRERROR)
535 AC_LIBOBJ([vasprintf])
536 AC_LIBOBJ([vsnprintf])
537 AC_LIBOBJ([snprintf])
538 AC_LIBOBJ([asprintf])
540 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
541 getcwd getpagesize getrusage gettimeofday \
542 index insque memchr memcmp memcpy memmove memset psignal \
543 putenv random rename rindex sbrk setenv stpcpy strcasecmp \
544 strchr strdup strerror strncasecmp strrchr strstr strtod \
545 strtol strtoul sysconf times tmpnam vfprintf vprintf \
548 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
549 AC_DEFINE_UNQUOTED($n)
560 # Not a target library, so we set things up to run the test suite.
566 AC_SUBST(target_header_dir)
569 *-*-cygwin* | *-*-mingw*)
570 AC_DEFINE(HAVE_SYS_ERRLIST)
571 AC_DEFINE(HAVE_SYS_NERR)
575 if test -z "${setobjs}"; then
579 # Handle VxWorks configuration specially, since on VxWorks the
580 # libraries are actually on the target board, not in the file
582 AC_LIBOBJ([basename])
583 AC_LIBOBJ([getpagesize])
586 AC_LIBOBJ([strcasecmp])
587 AC_LIBOBJ([strncasecmp])
591 AC_LIBOBJ([vasprintf])
594 basename | getpagesize | insque | random | strcasecmp)
596 strncasecmp | strdup | vfork | waitpid | vasprintf)
599 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
600 AC_DEFINE_UNQUOTED($n)
605 # VxWorks doesn't provide any of the variables in $vars, so we
606 # don't have to check them here.
608 # Of the functions in $checkfuncs, VxWorks only has strerror.
609 AC_DEFINE(HAVE_STRERROR)
617 if test -z "${setobjs}"; then
622 # On android, getpagesize is defined in unistd.h as a static inline
623 # function, which AC_CHECK_FUNCS does not handle properly.
624 ac_cv_func_getpagesize=yes
628 # Replace system snprintf and vsnprintf with libiberty implementations.
629 AC_LIBOBJ([snprintf])
630 AC_LIBOBJ([vsnprintf])
634 # Under mingw32, sys_nerr and sys_errlist exist, but they are
635 # macros, so the test below won't find them.
636 libiberty_cv_var_sys_nerr=yes
637 libiberty_cv_var_sys_errlist=yes
641 # vfork and fork are stubs.
642 ac_cv_func_vfork_works=no
646 # Under some versions of uwin, vfork is notoriously buggy and the test
647 # can hang configure; on other versions, vfork exists just as a stub.
648 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
649 ac_cv_func_vfork_works=no
650 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
651 # macros (actually, these are imported from a DLL, but the end effect
652 # is the same), so the test below won't find them.
653 libiberty_cv_var_sys_nerr=yes
654 libiberty_cv_var_sys_errlist=yes
658 # Under VMS, vfork works very different than on Unix. The standard test
659 # won't work, and it isn't easily adaptable. It makes more sense to
661 ac_cv_func_vfork_works=yes
666 # We haven't set the list of objects yet. Use the standard autoconf
667 # tests. This will only work if the compiler works.
669 AC_REPLACE_FUNCS($funcs)
670 libiberty_AC_FUNC_C_ALLOCA
672 if test $ac_cv_func_vfork_works = no; then
675 # We only need _doprnt if we might use it to implement v*printf.
676 if test $ac_cv_func_vprintf != yes \
677 || test $ac_cv_func_vfprintf != yes \
678 || test $ac_cv_func_vsprintf != yes; then
679 AC_REPLACE_FUNCS(_doprnt)
681 AC_CHECK_FUNCS(_doprnt)
685 AC_MSG_CHECKING([for $v])
686 AC_CACHE_VAL(libiberty_cv_var_$v,
687 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern int $v [];]],[[if ($v [0]) return 1;]])],
688 [eval "libiberty_cv_var_$v=yes"],
689 [eval "libiberty_cv_var_$v=no"])])
690 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
692 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
693 AC_DEFINE_UNQUOTED($n)
699 # special check for _system_configuration because AIX <4.3.2 do not
700 # contain the `physmem' member.
701 AC_MSG_CHECKING([for external symbol _system_configuration])
702 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
703 [[double x = _system_configuration.physmem;]])],
704 [AC_MSG_RESULT([yes])
705 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
706 [Define if you have the _system_configuration variable.])],
707 [AC_MSG_RESULT([no])])
709 AC_CHECK_FUNCS($checkfuncs)
710 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
711 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc])
713 *-*-darwin*) ;; # Darwin's sbrk implementation is deprecated.
714 *) AC_CHECK_DECLS([sbrk]);;
716 AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull])
717 AC_CHECK_DECLS([strverscmp])
718 AC_CHECK_DECLS([strnlen])
719 libiberty_NEED_DECLARATION(canonicalize_file_name)
722 # Figure out which version of pexecute to use.
724 *-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;;
725 *-*-msdosdjgpp*) pexecute=pex-djgpp ;;
726 *-*-msdos*) pexecute=pex-msdos ;;
727 *) pexecute=pex-unix ;;
731 libiberty_AC_FUNC_STRNCMP
733 # Install a library built with a cross compiler in $(tooldir) rather
735 if test -z "${with_cross_host}"; then
740 AC_SUBST(INSTALL_DEST)
742 m4_pattern_allow(LIBOBJS)
744 for l in x $LIBOBJS; do
752 dnl Required by html and install-html
753 AC_SUBST(datarootdir)
757 # We need multilib support, but only if configuring for the target.
758 AC_CONFIG_FILES([Makefile testsuite/Makefile])
759 AC_CONFIG_COMMANDS([default],
760 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
761 if test -n "$CONFIG_FILES"; then
762 if test -n "${with_target_subdir}"; then
763 # FIXME: We shouldn't need to set ac_file
765 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
766 . ${libiberty_topdir}/config-ml.in
772 with_target_subdir=${with_target_subdir}
773 with_multisubdir=${with_multisubdir}
774 ac_configure_args="--enable-multilib ${ac_configure_args}"
775 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
776 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
777 libiberty_topdir=${libiberty_topdir}