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 # Do we have a single-tree copy of texinfo? Even if we do, we can't
65 # rely on it - libiberty is built before texinfo.
66 AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
67 if test "x$MAKEINFO" = "x"; then
68 MAKEINFO="@echo makeinfo missing; true"
76 *** Makeinfo is missing. Info documentation will not be built.])
79 case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in
81 MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true"
84 *** Makeinfo is too old. Info documentation will not be built.])
93 AC_CHECK_PROG(PERL, perl, perl, )
94 if test x"$PERL" = x""; then
103 dnl When we start using automake:
104 dnl AM_INIT_AUTOMAKE(libiberty, 1.0)
106 dnl These must be called before AM_PROG_LIBTOOL, because it may want
107 dnl to call AC_CHECK_PROG.
108 AC_CHECK_TOOL(AR, ar)
109 AC_CHECK_TOOL(RANLIB, ranlib, :)
111 dnl When switching to automake, replace the following with AM_ENABLE_MULTILIB.
112 # Add --enable-multilib to configure.
113 # Default to --enable-multilib
114 AC_ARG_ENABLE(multilib,
115 [ --enable-multilib build many library versions (default)],
116 [case "$enableval" in
119 *) AC_MSG_ERROR([bad value $enableval for multilib option]) ;;
123 # Even if the default multilib is not a cross compilation,
124 # it may be that some of the other multilibs are.
125 if test $cross_compiling = no && test $multilib = yes \
126 && test "x${with_multisubdir}" != x ; then
127 cross_compiling=maybe
130 # We may wish to install the target headers somewhere.
131 AC_MSG_CHECKING([whether to install libiberty headers and static library])
132 dnl install-libiberty is disabled by default
134 AC_ARG_ENABLE(install-libiberty,
135 [ --enable-install-libiberty Install headers and library for end users],
136 enable_install_libiberty=$enableval,
137 enable_install_libiberty=no)dnl
139 # Option parsed, now set things appropriately.
140 case x"$enable_install_libiberty" in
142 target_header_dir=libiberty
148 # This could be sanity-checked in various ways...
149 target_header_dir="${enable_install_libiberty}"
152 AC_MSG_RESULT($enable_install_libiberty)
153 AC_MSG_NOTICE([target_header_dir = $target_header_dir])
161 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \
162 -Wstrict-prototypes \
163 -Wshadow=local], [ac_libiberty_warn_cflags])
164 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags])
167 # autoconf is lame and doesn't give us any substitution variable for this.
168 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
169 NO_MINUS_C_MINUS_O=yes
171 OUTPUT_OPTION='-o $@'
173 AC_SUBST(NO_MINUS_C_MINUS_O)
174 AC_SUBST(OUTPUT_OPTION)
180 dnl When we start using libtool:
181 dnl Default to a non shared library. This may be overridden by the
182 dnl configure option --enable-shared.
183 dnl AM_DISABLE_SHARED
185 dnl When we start using libtool:
188 dnl When we start using automake:
189 dnl AM_CONFIG_HEADER(config.h:config.in)
190 AC_CONFIG_HEADER(config.h:config.in)
192 dnl When we start using automake:
193 dnl AM_MAINTAINER_MODE
196 dnl When we start using automake:
200 # Don't build the shared library for build.
201 if [[ -n "${with_build_subdir}" ]]; then
207 rs6000-ibm-aix3.1 | rs6000-ibm-aix)
209 *-*-cxux7*) frag=mh-cxux7 ;;
210 *-*-freebsd2.1.*) frag=mh-fbsd21 ;;
211 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;;
212 i370-*-opened*) frag=mh-openedition ;;
213 i[[34567]]86-*-windows*) frag=mh-windows ;;
216 if [[ -n "${frag}" ]]; then
217 frag=${libiberty_topdir}/libiberty/config/$frag
222 # If they didn't specify --enable-shared, don't generate shared libs.
223 case "${enable_shared}" in
230 # ...unless --enable-host-shared was passed from top-level config:
231 if [[ "${enable_host_shared}" = "yes" ]]; then
235 if [[ "${shared}" != "yes" ]]; then
241 case " ${CFLAGS} " in
242 *\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;;
246 GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
247 AC_SUBST(CET_HOST_FLAGS)
249 echo "# Warning: this fragment is automatically generated" > temp-frag
251 if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
252 echo "Appending ${frag} to xhost-mkfrag"
253 echo "# Following fragment copied from ${frag}" >> temp-frag
254 cat ${frag} >> temp-frag
257 # record if we want to build shared libs.
258 if [[ "${shared}" = "yes" ]]; then
259 echo enable_shared = yes >> temp-frag
261 echo enable_shared = no >> temp-frag
265 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
267 host_makefile_frag=${frag}
268 AC_SUBST_FILE(host_makefile_frag)
270 # It's OK to check for header files. Although the compiler may not be
271 # able to link anything, it had better be able to at least compile
273 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)
277 libiberty_AC_DECLARE_ERRNO
279 # Determine sizes of some types.
280 AC_CHECK_SIZEOF([int])
281 AC_CHECK_SIZEOF([long])
282 AC_CHECK_SIZEOF([size_t])
284 # Check for presense of long long
285 AC_CHECK_TYPE([long long],
286 [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])],
289 # Look for a 64-bit type.
290 AC_MSG_CHECKING([for a 64-bit type])
291 AC_CACHE_VAL(liberty_cv_uint64,
293 [#ifdef HAVE_STDINT_H
296 [extern uint64_t foo;],
297 liberty_cv_uint64=uint64_t,
299 [#ifdef HAVE_LIMITS_H
305 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
306 liberty_cv_uint64="unsigned long",
308 [#ifdef HAVE_LIMITS_H
314 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
315 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
316 AC_MSG_RESULT($liberty_cv_uint64)
317 if test "$liberty_cv_uint64" != none; then
318 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
319 [Define to an unsigned 64-bit type available in the compiler.])
326 # Given the above check, we always have uintptr_t or a fallback
327 # definition. So define HAVE_UINTPTR_T in case any imported code
329 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
333 # This is the list of functions which libiberty will provide if they
334 # are not available on the host.
337 funcs="$funcs atexit"
338 funcs="$funcs basename"
341 funcs="$funcs bsearch"
343 funcs="$funcs calloc"
346 funcs="$funcs getcwd"
347 funcs="$funcs getpagesize"
348 funcs="$funcs gettimeofday"
350 funcs="$funcs insque"
351 funcs="$funcs memchr"
352 funcs="$funcs memcmp"
353 funcs="$funcs memcpy"
354 funcs="$funcs memmem"
355 funcs="$funcs memmove"
356 funcs="$funcs mempcpy"
357 funcs="$funcs memset"
358 funcs="$funcs mkstemps"
359 funcs="$funcs putenv"
360 funcs="$funcs random"
361 funcs="$funcs rename"
362 funcs="$funcs rindex"
363 funcs="$funcs setenv"
364 funcs="$funcs snprintf"
365 funcs="$funcs sigsetmask"
366 funcs="$funcs stpcpy"
367 funcs="$funcs stpncpy"
368 funcs="$funcs strcasecmp"
369 funcs="$funcs strchr"
370 funcs="$funcs strdup"
371 funcs="$funcs strncasecmp"
372 funcs="$funcs strndup"
373 funcs="$funcs strnlen"
374 funcs="$funcs strrchr"
375 funcs="$funcs strstr"
376 funcs="$funcs strtod"
377 funcs="$funcs strtol"
378 funcs="$funcs strtoul"
379 funcs="$funcs strtoll"
380 funcs="$funcs strtoull"
381 funcs="$funcs strverscmp"
382 funcs="$funcs tmpnam"
383 funcs="$funcs vasprintf"
384 funcs="$funcs vfprintf"
385 funcs="$funcs vprintf"
386 funcs="$funcs vsnprintf"
387 funcs="$funcs vsprintf"
388 funcs="$funcs waitpid"
389 funcs="$funcs setproctitle"
391 # Also in the old function.def file: alloca, vfork, getopt.
393 vars="sys_errlist sys_nerr sys_siglist"
395 checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \
396 getsysinfo gettimeofday on_exit pipe2 psignal pstat_getdynamic pstat_getstatic \
397 realpath setrlimit sbrk spawnve spawnvpe strerror strsignal sysconf sysctl \
398 sysmp table times wait3 wait4"
400 # These are neither executed nor required, but they help keep
401 # autoheader happy without adding a bunch of text to acconfig.h.
402 if test "x" = "y"; then
403 AC_CHECK_FUNCS(asprintf atexit \
404 basename bcmp bcopy bsearch bzero \
405 calloc canonicalize_file_name clock \
408 getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \
410 memchr memcmp memcpy memmem memmove memset mkstemps \
412 pipe2 psignal pstat_getdynamic pstat_getstatic putenv \
413 random realpath rename rindex \
414 sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \
415 stpcpy stpncpy strcasecmp strchr strdup \
416 strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \
417 strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \
419 vasprintf vfprintf vprintf vsprintf \
421 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull, strnlen])
422 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
423 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
424 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
427 # For each of these functions, if the host does not provide the
428 # function we want to put FN.o in LIBOBJS, and if the host does
429 # provide the function, we want to define HAVE_FN in config.h.
433 if test -n "${with_target_subdir}"; then
435 # We are being configured as a target library. AC_REPLACE_FUNCS
436 # may not work correctly, because the compiler may not be able to
437 # link executables. Note that we may still be being configured
440 # If we are being configured for newlib, we know which functions
441 # newlib provide and which ones we will be expected to provide.
443 if test "x${with_newlib}" = "xyes"; then
444 AC_LIBOBJ([asprintf])
445 AC_LIBOBJ([basename])
449 AC_LIBOBJ([vasprintf])
453 asprintf | basename | insque | random | strdup | vasprintf)
456 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
457 AC_DEFINE_UNQUOTED($n)
462 # newlib doesnt provide any of the variables in $vars, so we
463 # dont have to check them here.
465 # Of the functions in $checkfuncs, newlib only has strerror.
466 AC_DEFINE(HAVE_STRERROR)
472 # If we are being configured for Mingw, we know which functions
473 # Mingw provides and which ones we will be expected to provide.
477 AC_LIBOBJ([asprintf])
478 AC_LIBOBJ([basename])
484 AC_LIBOBJ([getpagesize])
488 AC_LIBOBJ([mkstemps])
491 AC_LIBOBJ([sigsetmask])
496 AC_LIBOBJ([strverscmp])
497 AC_LIBOBJ([vasprintf])
502 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid)
505 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
506 AC_DEFINE_UNQUOTED($n)
511 # Mingw doesnt provide any of the variables in $vars, so we
512 # dont have to check them here.
514 # Of the functions in $checkfuncs, Mingw only has strerror.
515 AC_DEFINE(HAVE_STRERROR)
521 AC_LIBOBJ([vasprintf])
522 AC_LIBOBJ([vsnprintf])
523 AC_LIBOBJ([snprintf])
524 AC_LIBOBJ([asprintf])
526 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
527 getcwd getpagesize getrusage gettimeofday \
528 index insque memchr memcmp memcpy memmove memset psignal \
529 putenv random rename rindex sbrk setenv stpcpy strcasecmp \
530 strchr strdup strerror strncasecmp strrchr strstr strtod \
531 strtol strtoul sysconf times tmpnam vfprintf vprintf \
534 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
535 AC_DEFINE_UNQUOTED($n)
546 # Not a target library, so we set things up to run the test suite.
552 AC_SUBST(target_header_dir)
555 *-*-cygwin* | *-*-mingw*)
556 AC_DEFINE(HAVE_SYS_ERRLIST)
557 AC_DEFINE(HAVE_SYS_NERR)
561 if test -z "${setobjs}"; then
565 # Handle VxWorks configuration specially, since on VxWorks the
566 # libraries are actually on the target board, not in the file
568 AC_LIBOBJ([basename])
569 AC_LIBOBJ([getpagesize])
572 AC_LIBOBJ([strcasecmp])
573 AC_LIBOBJ([strncasecmp])
577 AC_LIBOBJ([vasprintf])
580 basename | getpagesize | insque | random | strcasecmp)
582 strncasecmp | strdup | vfork | waitpid | vasprintf)
585 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
586 AC_DEFINE_UNQUOTED($n)
591 # VxWorks doesn't provide any of the variables in $vars, so we
592 # don't have to check them here.
594 # Of the functions in $checkfuncs, VxWorks only has strerror.
595 AC_DEFINE(HAVE_STRERROR)
603 if test -z "${setobjs}"; then
608 # On android, getpagesize is defined in unistd.h as a static inline
609 # function, which AC_CHECK_FUNCS does not handle properly.
610 ac_cv_func_getpagesize=yes
614 # Under mingw32, sys_nerr and sys_errlist exist, but they are
615 # macros, so the test below won't find them.
616 libiberty_cv_var_sys_nerr=yes
617 libiberty_cv_var_sys_errlist=yes
621 # vfork and fork are stubs.
622 ac_cv_func_vfork_works=no
626 # Under some versions of uwin, vfork is notoriously buggy and the test
627 # can hang configure; on other versions, vfork exists just as a stub.
628 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
629 ac_cv_func_vfork_works=no
630 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
631 # macros (actually, these are imported from a DLL, but the end effect
632 # is the same), so the test below won't find them.
633 libiberty_cv_var_sys_nerr=yes
634 libiberty_cv_var_sys_errlist=yes
638 # Under VMS, vfork works very different than on Unix. The standard test
639 # won't work, and it isn't easily adaptable. It makes more sense to
641 ac_cv_func_vfork_works=yes
646 # We haven't set the list of objects yet. Use the standard autoconf
647 # tests. This will only work if the compiler works.
649 AC_REPLACE_FUNCS($funcs)
650 libiberty_AC_FUNC_C_ALLOCA
652 if test $ac_cv_func_vfork_works = no; then
655 # We only need _doprnt if we might use it to implement v*printf.
656 if test $ac_cv_func_vprintf != yes \
657 || test $ac_cv_func_vfprintf != yes \
658 || test $ac_cv_func_vsprintf != yes; then
659 AC_REPLACE_FUNCS(_doprnt)
661 AC_CHECK_FUNCS(_doprnt)
665 AC_MSG_CHECKING([for $v])
666 AC_CACHE_VAL(libiberty_cv_var_$v,
667 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
668 [eval "libiberty_cv_var_$v=yes"],
669 [eval "libiberty_cv_var_$v=no"])])
670 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
672 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
673 AC_DEFINE_UNQUOTED($n)
679 # special check for _system_configuration because AIX <4.3.2 do not
680 # contain the `physmem' member.
681 AC_MSG_CHECKING([for external symbol _system_configuration])
682 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
683 [[double x = _system_configuration.physmem;]])],
684 [AC_MSG_RESULT([yes])
685 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
686 [Define if you have the _system_configuration variable.])],
687 [AC_MSG_RESULT([no])])
689 AC_CHECK_FUNCS($checkfuncs)
690 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
691 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
692 AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull])
693 AC_CHECK_DECLS([strverscmp])
694 AC_CHECK_DECLS([strnlen])
695 libiberty_NEED_DECLARATION(canonicalize_file_name)
698 # Figure out which version of pexecute to use.
700 *-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;;
701 *-*-msdosdjgpp*) pexecute=pex-djgpp ;;
702 *-*-msdos*) pexecute=pex-msdos ;;
703 *) pexecute=pex-unix ;;
707 libiberty_AC_FUNC_STRNCMP
709 # Install a library built with a cross compiler in $(tooldir) rather
711 if test -z "${with_cross_host}"; then
716 AC_SUBST(INSTALL_DEST)
718 m4_pattern_allow(LIBOBJS)
720 for l in x $LIBOBJS; do
728 dnl Required by html and install-html
729 AC_SUBST(datarootdir)
733 # We need multilib support, but only if configuring for the target.
734 AC_CONFIG_FILES([Makefile testsuite/Makefile])
735 AC_CONFIG_COMMANDS([default],
736 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
737 if test -n "$CONFIG_FILES"; then
738 if test -n "${with_target_subdir}"; then
739 # FIXME: We shouldn't need to set ac_file
741 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
742 . ${libiberty_topdir}/config-ml.in
748 with_target_subdir=${with_target_subdir}
749 with_multisubdir=${with_multisubdir}
750 ac_configure_args="--enable-multilib ${ac_configure_args}"
751 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
752 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
753 libiberty_topdir=${libiberty_topdir}