1 dnl Process this file with autoconf to produce a configure script
4 AC_CONFIG_SRCDIR([xmalloc.c])
6 # This works around the fact that libtool configuration may change LD
7 # for this particular configuration, but some shells, instead of
8 # keeping the changes in LD private, export them just because LD is
9 # exported. We don't use libtool yet, but some day we might, so...
10 ORIGINAL_LD_FOR_MULTILIBS=$LD
12 dnl We use these options to decide which functions to include.
13 AC_ARG_WITH(target-subdir,
14 [ --with-target-subdir=SUBDIR Configuring in a subdirectory for target])
15 AC_ARG_WITH(build-subdir,
16 [ --with-build-subdir=SUBDIR Configuring in a subdirectory for build])
17 AC_ARG_WITH(cross-host,
18 [ --with-cross-host=HOST Configuring with a cross compiler])
20 [ --with-newlib Configuring with newlib])
22 if test "${srcdir}" = "."; then
23 if test -n "${with_build_subdir}"; then
24 libiberty_topdir="${srcdir}/../.."
26 elif test -z "${with_target_subdir}"; then
27 libiberty_topdir="${srcdir}/.."
29 if test "${with_target_subdir}" != "."; then
30 libiberty_topdir="${srcdir}/${with_multisrctop}../.."
32 libiberty_topdir="${srcdir}/${with_multisrctop}.."
36 libiberty_topdir="${srcdir}/.."
38 AC_SUBST(libiberty_topdir)
39 AC_CONFIG_AUX_DIR($libiberty_topdir)
41 dnl Very limited version of automake's enable-maintainer-mode
43 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
44 dnl maintainer-mode is disabled by default
45 AC_ARG_ENABLE(maintainer-mode,
46 [ --enable-maintainer-mode
47 enable make rules and dependencies not useful
48 (and sometimes confusing) to the casual installer],
49 maintainer_mode=$enableval,
52 AC_MSG_RESULT($maintainer_mode)
54 if test "$maintainer_mode" = "yes"; then
64 if test -z "$ETAGS"; then
69 # Do we have a single-tree copy of texinfo? Even if we do, we can't
70 # rely on it - libiberty is built before texinfo.
71 AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
72 if test "x$MAKEINFO" = "x"; then
73 MAKEINFO="@echo makeinfo missing; true"
81 *** Makeinfo is missing. Info documentation will not be built.])
84 case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in
86 MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true"
89 *** Makeinfo is too old. Info documentation will not be built.])
98 AC_CHECK_PROG(PERL, perl, perl, )
99 if test x"$PERL" = x""; then
108 dnl When we start using automake:
109 dnl AM_INIT_AUTOMAKE(libiberty, 1.0)
111 dnl These must be called before AM_PROG_LIBTOOL, because it may want
112 dnl to call AC_CHECK_PROG.
113 AC_CHECK_TOOL(AR, ar)
114 AC_CHECK_TOOL(RANLIB, ranlib, :)
116 dnl When switching to automake, replace the following with AM_ENABLE_MULTILIB.
117 # Add --enable-multilib to configure.
118 # Default to --enable-multilib
119 AC_ARG_ENABLE(multilib,
120 [ --enable-multilib build many library versions (default)],
121 [case "$enableval" in
124 *) AC_MSG_ERROR([bad value $enableval for multilib option]) ;;
128 # Even if the default multilib is not a cross compilation,
129 # it may be that some of the other multilibs are.
130 if test $cross_compiling = no && test $multilib = yes \
131 && test "x${with_multisubdir}" != x ; then
132 cross_compiling=maybe
135 # We may wish to install the target headers somewhere.
136 AC_MSG_CHECKING([whether to install libiberty headers and static library])
137 dnl install-libiberty is disabled by default
139 AC_ARG_ENABLE(install-libiberty,
140 [ --enable-install-libiberty Install headers and library for end users],
141 enable_install_libiberty=$enableval,
142 enable_install_libiberty=no)dnl
144 # Option parsed, now set things appropriately.
145 case x"$enable_install_libiberty" in
147 target_header_dir=libiberty
153 # This could be sanity-checked in various ways...
154 target_header_dir="${enable_install_libiberty}"
157 AC_MSG_RESULT($enable_install_libiberty)
158 AC_MSG_NOTICE([target_header_dir = $target_header_dir])
166 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \
167 -Wstrict-prototypes \
168 -Wshadow=local], [ac_libiberty_warn_cflags])
169 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags])
172 # autoconf is lame and doesn't give us any substitution variable for this.
173 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
174 NO_MINUS_C_MINUS_O=yes
176 OUTPUT_OPTION='-o $@'
178 AC_SUBST(NO_MINUS_C_MINUS_O)
179 AC_SUBST(OUTPUT_OPTION)
185 dnl When we start using libtool:
186 dnl Default to a non shared library. This may be overridden by the
187 dnl configure option --enable-shared.
188 dnl AM_DISABLE_SHARED
190 dnl When we start using libtool:
193 dnl When we start using automake:
194 dnl AM_CONFIG_HEADER(config.h:config.in)
195 AC_CONFIG_HEADER(config.h:config.in)
197 dnl When we start using automake:
198 dnl AM_MAINTAINER_MODE
201 dnl When we start using automake:
205 # Don't build the shared library for build.
206 if [[ -n "${with_build_subdir}" ]]; then
212 rs6000-ibm-aix3.1 | rs6000-ibm-aix)
214 *-*-cxux7*) frag=mh-cxux7 ;;
215 *-*-freebsd2.1.*) frag=mh-fbsd21 ;;
216 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;;
217 i370-*-opened*) frag=mh-openedition ;;
218 i[[34567]]86-*-windows*) frag=mh-windows ;;
221 if [[ -n "${frag}" ]]; then
222 frag=${libiberty_topdir}/libiberty/config/$frag
227 # If they didn't specify --enable-shared, don't generate shared libs.
228 case "${enable_shared}" in
235 # ...unless --enable-host-shared was passed from top-level config:
236 if [[ "${enable_host_shared}" = "yes" ]]; then
240 if [[ "${shared}" != "yes" ]]; then
246 case " ${CFLAGS} " in
247 *\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;;
248 *\ -fsanitize=hwaddress\ *) NOASANFLAG=-fno-sanitize=hwaddress ;;
252 GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
253 AC_SUBST(CET_HOST_FLAGS)
255 echo "# Warning: this fragment is automatically generated" > temp-frag
257 if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
258 echo "Appending ${frag} to xhost-mkfrag"
259 echo "# Following fragment copied from ${frag}" >> temp-frag
260 cat ${frag} >> temp-frag
263 # record if we want to build shared libs.
264 if [[ "${shared}" = "yes" ]]; then
265 echo enable_shared = yes >> temp-frag
267 echo enable_shared = no >> temp-frag
271 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
273 host_makefile_frag=${frag}
274 AC_SUBST_FILE(host_makefile_frag)
276 # It's OK to check for header files. Although the compiler may not be
277 # able to link anything, it had better be able to at least compile
279 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)
283 libiberty_AC_DECLARE_ERRNO
285 # Determine sizes of some types.
286 AC_CHECK_SIZEOF([int])
287 AC_CHECK_SIZEOF([long])
288 AC_CHECK_SIZEOF([size_t])
290 # Check for presense of long long
291 AC_CHECK_TYPE([long long],
292 [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])],
295 # Look for a 64-bit type.
296 AC_MSG_CHECKING([for a 64-bit type])
297 AC_CACHE_VAL(liberty_cv_uint64,
299 [#ifdef HAVE_STDINT_H
302 [extern uint64_t foo;],
303 liberty_cv_uint64=uint64_t,
305 [#ifdef HAVE_LIMITS_H
311 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
312 liberty_cv_uint64="unsigned long",
314 [#ifdef HAVE_LIMITS_H
320 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
321 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
322 AC_MSG_RESULT($liberty_cv_uint64)
323 if test "$liberty_cv_uint64" != none; then
324 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
325 [Define to an unsigned 64-bit type available in the compiler.])
332 # Given the above check, we always have uintptr_t or a fallback
333 # definition. So define HAVE_UINTPTR_T in case any imported code
335 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
339 # This is the list of functions which libiberty will provide if they
340 # are not available on the host.
343 funcs="$funcs atexit"
344 funcs="$funcs basename"
347 funcs="$funcs bsearch"
349 funcs="$funcs calloc"
352 funcs="$funcs getcwd"
353 funcs="$funcs getpagesize"
354 funcs="$funcs gettimeofday"
356 funcs="$funcs insque"
357 funcs="$funcs memchr"
358 funcs="$funcs memcmp"
359 funcs="$funcs memcpy"
360 funcs="$funcs memmem"
361 funcs="$funcs memmove"
362 funcs="$funcs mempcpy"
363 funcs="$funcs memset"
364 funcs="$funcs mkstemps"
365 funcs="$funcs putenv"
366 funcs="$funcs random"
367 funcs="$funcs rename"
368 funcs="$funcs rindex"
369 funcs="$funcs setenv"
370 funcs="$funcs snprintf"
371 funcs="$funcs sigsetmask"
372 funcs="$funcs stpcpy"
373 funcs="$funcs stpncpy"
374 funcs="$funcs strcasecmp"
375 funcs="$funcs strchr"
376 funcs="$funcs strdup"
377 funcs="$funcs strncasecmp"
378 funcs="$funcs strndup"
379 funcs="$funcs strnlen"
380 funcs="$funcs strrchr"
381 funcs="$funcs strstr"
382 funcs="$funcs strtod"
383 funcs="$funcs strtol"
384 funcs="$funcs strtoul"
385 funcs="$funcs strtoll"
386 funcs="$funcs strtoull"
387 funcs="$funcs strverscmp"
388 funcs="$funcs tmpnam"
389 funcs="$funcs vasprintf"
390 funcs="$funcs vfprintf"
391 funcs="$funcs vprintf"
392 funcs="$funcs vsnprintf"
393 funcs="$funcs vsprintf"
394 funcs="$funcs waitpid"
395 funcs="$funcs setproctitle"
397 # Also in the old function.def file: alloca, vfork, getopt.
399 vars="sys_errlist sys_nerr sys_siglist"
401 checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \
402 getsysinfo gettimeofday on_exit pipe2 psignal pstat_getdynamic pstat_getstatic \
403 realpath setrlimit spawnve spawnvpe strerror strsignal sysconf sysctl \
404 sysmp table times wait3 wait4"
406 #Â Darwin has sbrk, but it is deprecated and that produces build-time warnings
407 #Â so do not check for it.
410 *) checkfuncs="$checkfuncs sbrk"
413 # These are neither executed nor required, but they help keep
414 # autoheader happy without adding a bunch of text to acconfig.h.
415 if test "x" = "y"; then
416 AC_CHECK_FUNCS(asprintf atexit \
417 basename bcmp bcopy bsearch bzero \
418 calloc canonicalize_file_name clock \
421 getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \
423 memchr memcmp memcpy memmem memmove memset mkstemps \
425 pipe2 psignal pstat_getdynamic pstat_getstatic putenv \
426 random realpath rename rindex \
427 sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \
428 stpcpy stpncpy strcasecmp strchr strdup \
429 strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \
430 strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \
432 vasprintf vfprintf vprintf vsprintf \
434 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull, strnlen])
435 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
436 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
437 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
440 # For each of these functions, if the host does not provide the
441 # function we want to put FN.o in LIBOBJS, and if the host does
442 # provide the function, we want to define HAVE_FN in config.h.
446 if test -n "${with_target_subdir}"; then
448 # We are being configured as a target library. AC_REPLACE_FUNCS
449 # may not work correctly, because the compiler may not be able to
450 # link executables. Note that we may still be being configured
453 # If we are being configured for newlib, we know which functions
454 # newlib provide and which ones we will be expected to provide.
456 if test "x${with_newlib}" = "xyes"; then
457 AC_LIBOBJ([asprintf])
458 AC_LIBOBJ([basename])
462 AC_LIBOBJ([vasprintf])
466 asprintf | basename | insque | random | strdup | vasprintf)
469 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
470 AC_DEFINE_UNQUOTED($n)
475 # newlib doesnt provide any of the variables in $vars, so we
476 # dont have to check them here.
478 # Of the functions in $checkfuncs, newlib only has strerror.
479 AC_DEFINE(HAVE_STRERROR)
485 # If we are being configured for Mingw, we know which functions
486 # Mingw provides and which ones we will be expected to provide.
490 AC_LIBOBJ([asprintf])
491 AC_LIBOBJ([basename])
497 AC_LIBOBJ([getpagesize])
501 AC_LIBOBJ([mkstemps])
504 AC_LIBOBJ([sigsetmask])
509 AC_LIBOBJ([strverscmp])
510 AC_LIBOBJ([vasprintf])
515 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid)
518 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
519 AC_DEFINE_UNQUOTED($n)
524 # Mingw doesnt provide any of the variables in $vars, so we
525 # dont have to check them here.
527 # Of the functions in $checkfuncs, Mingw only has strerror.
528 AC_DEFINE(HAVE_STRERROR)
534 AC_LIBOBJ([vasprintf])
535 AC_LIBOBJ([vsnprintf])
536 AC_LIBOBJ([snprintf])
537 AC_LIBOBJ([asprintf])
539 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
540 getcwd getpagesize getrusage gettimeofday \
541 index insque memchr memcmp memcpy memmove memset psignal \
542 putenv random rename rindex sbrk setenv stpcpy strcasecmp \
543 strchr strdup strerror strncasecmp strrchr strstr strtod \
544 strtol strtoul sysconf times tmpnam vfprintf vprintf \
547 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
548 AC_DEFINE_UNQUOTED($n)
559 # Not a target library, so we set things up to run the test suite.
565 AC_SUBST(target_header_dir)
568 *-*-cygwin* | *-*-mingw*)
569 AC_DEFINE(HAVE_SYS_ERRLIST)
570 AC_DEFINE(HAVE_SYS_NERR)
574 if test -z "${setobjs}"; then
578 # Handle VxWorks configuration specially, since on VxWorks the
579 # libraries are actually on the target board, not in the file
581 AC_LIBOBJ([basename])
582 AC_LIBOBJ([getpagesize])
585 AC_LIBOBJ([strcasecmp])
586 AC_LIBOBJ([strncasecmp])
590 AC_LIBOBJ([vasprintf])
593 basename | getpagesize | insque | random | strcasecmp)
595 strncasecmp | strdup | vfork | waitpid | vasprintf)
598 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
599 AC_DEFINE_UNQUOTED($n)
604 # VxWorks doesn't provide any of the variables in $vars, so we
605 # don't have to check them here.
607 # Of the functions in $checkfuncs, VxWorks only has strerror.
608 AC_DEFINE(HAVE_STRERROR)
616 if test -z "${setobjs}"; then
621 # On android, getpagesize is defined in unistd.h as a static inline
622 # function, which AC_CHECK_FUNCS does not handle properly.
623 ac_cv_func_getpagesize=yes
627 # Replace system snprintf and vsnprintf with libiberty implementations.
628 AC_LIBOBJ([snprintf])
629 AC_LIBOBJ([vsnprintf])
633 # Under mingw32, sys_nerr and sys_errlist exist, but they are
634 # macros, so the test below won't find them.
635 libiberty_cv_var_sys_nerr=yes
636 libiberty_cv_var_sys_errlist=yes
640 # vfork and fork are stubs.
641 ac_cv_func_vfork_works=no
645 # Under some versions of uwin, vfork is notoriously buggy and the test
646 # can hang configure; on other versions, vfork exists just as a stub.
647 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
648 ac_cv_func_vfork_works=no
649 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
650 # macros (actually, these are imported from a DLL, but the end effect
651 # is the same), so the test below won't find them.
652 libiberty_cv_var_sys_nerr=yes
653 libiberty_cv_var_sys_errlist=yes
657 # Under VMS, vfork works very different than on Unix. The standard test
658 # won't work, and it isn't easily adaptable. It makes more sense to
660 ac_cv_func_vfork_works=yes
665 # We haven't set the list of objects yet. Use the standard autoconf
666 # tests. This will only work if the compiler works.
668 AC_REPLACE_FUNCS($funcs)
669 libiberty_AC_FUNC_C_ALLOCA
671 if test $ac_cv_func_vfork_works = no; then
674 # We only need _doprnt if we might use it to implement v*printf.
675 if test $ac_cv_func_vprintf != yes \
676 || test $ac_cv_func_vfprintf != yes \
677 || test $ac_cv_func_vsprintf != yes; then
678 AC_REPLACE_FUNCS(_doprnt)
680 AC_CHECK_FUNCS(_doprnt)
684 AC_MSG_CHECKING([for $v])
685 AC_CACHE_VAL(libiberty_cv_var_$v,
686 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern int $v [];]],[[if ($v [0]) return 1;]])],
687 [eval "libiberty_cv_var_$v=yes"],
688 [eval "libiberty_cv_var_$v=no"])])
689 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
691 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
692 AC_DEFINE_UNQUOTED($n)
698 # special check for _system_configuration because AIX <4.3.2 do not
699 # contain the `physmem' member.
700 AC_MSG_CHECKING([for external symbol _system_configuration])
701 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
702 [[double x = _system_configuration.physmem;]])],
703 [AC_MSG_RESULT([yes])
704 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
705 [Define if you have the _system_configuration variable.])],
706 [AC_MSG_RESULT([no])])
708 AC_CHECK_FUNCS($checkfuncs)
709 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
710 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc])
712 *-*-darwin*) ;; # Darwin's sbrk implementation is deprecated.
713 *) AC_CHECK_DECLS([sbrk]);;
715 AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull])
716 AC_CHECK_DECLS([strverscmp])
717 AC_CHECK_DECLS([strnlen])
718 libiberty_NEED_DECLARATION(canonicalize_file_name)
721 # Figure out which version of pexecute to use.
723 *-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;;
724 *-*-msdosdjgpp*) pexecute=pex-djgpp ;;
725 *-*-msdos*) pexecute=pex-msdos ;;
726 *) pexecute=pex-unix ;;
730 libiberty_AC_FUNC_STRNCMP
732 # Install a library built with a cross compiler in $(tooldir) rather
734 if test -z "${with_cross_host}"; then
739 AC_SUBST(INSTALL_DEST)
741 m4_pattern_allow(LIBOBJS)
743 for l in x $LIBOBJS; do
751 dnl Required by html and install-html
752 AC_SUBST(datarootdir)
756 # We need multilib support, but only if configuring for the target.
757 AC_CONFIG_FILES([Makefile testsuite/Makefile])
758 AC_CONFIG_COMMANDS([default],
759 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
760 if test -n "$CONFIG_FILES"; then
761 if test -n "${with_target_subdir}"; then
762 # FIXME: We shouldn't need to set ac_file
764 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
765 . ${libiberty_topdir}/config-ml.in
771 with_target_subdir=${with_target_subdir}
772 with_multisubdir=${with_multisubdir}
773 ac_configure_args="--enable-multilib ${ac_configure_args}"
774 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
775 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
776 libiberty_topdir=${libiberty_topdir}