1 dnl Process this file with autoconf to produce a configure script
5 AC_CONFIG_SRCDIR([xmalloc.c])
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 # Do we have a single-tree copy of texinfo? Even if we do, we can't
66 # rely on it - libiberty is built before texinfo.
67 AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
68 if test "x$MAKEINFO" = "x"; then
69 MAKEINFO="@echo makeinfo missing; true"
77 *** Makeinfo is missing. Info documentation will not be built.])
80 case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in
82 MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true"
85 *** Makeinfo is too old. Info documentation will not be built.])
94 AC_CHECK_PROG(PERL, perl, perl, )
95 if test x"$PERL" = x""; then
104 dnl When we start using automake:
105 dnl AM_INIT_AUTOMAKE(libiberty, 1.0)
107 dnl These must be called before AM_PROG_LIBTOOL, because it may want
108 dnl to call AC_CHECK_PROG.
109 AC_CHECK_TOOL(AR, ar)
110 AC_CHECK_TOOL(RANLIB, ranlib, :)
112 dnl When switching to automake, replace the following with AM_ENABLE_MULTILIB.
113 # Add --enable-multilib to configure.
114 # Default to --enable-multilib
115 AC_ARG_ENABLE(multilib,
116 [ --enable-multilib build many library versions (default)],
117 [case "$enableval" in
120 *) AC_MSG_ERROR([bad value $enableval for multilib option]) ;;
124 # Even if the default multilib is not a cross compilation,
125 # it may be that some of the other multilibs are.
126 if test $cross_compiling = no && test $multilib = yes \
127 && test "x${with_multisubdir}" != x ; then
128 cross_compiling=maybe
131 # We may wish to install the target headers somewhere.
132 AC_MSG_CHECKING([whether to install libiberty headers and static library])
133 dnl install-libiberty is disabled by default
135 AC_ARG_ENABLE(install-libiberty,
136 [ --enable-install-libiberty Install headers and library for end users],
137 enable_install_libiberty=$enableval,
138 enable_install_libiberty=no)dnl
140 # Option parsed, now set things appropriately.
141 case x"$enable_install_libiberty" in
143 target_header_dir=libiberty
149 # This could be sanity-checked in various ways...
150 target_header_dir="${enable_install_libiberty}"
153 AC_MSG_RESULT($enable_install_libiberty)
154 AC_MSG_NOTICE([target_header_dir = $target_header_dir])
161 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \
162 -Wstrict-prototypes], [ac_libiberty_warn_cflags])
163 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags])
166 # autoconf is lame and doesn't give us any substitution variable for this.
167 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
168 NO_MINUS_C_MINUS_O=yes
170 OUTPUT_OPTION='-o $@'
172 AC_SUBST(NO_MINUS_C_MINUS_O)
173 AC_SUBST(OUTPUT_OPTION)
179 dnl When we start using libtool:
180 dnl Default to a non shared library. This may be overridden by the
181 dnl configure option --enable-shared.
182 dnl AM_DISABLE_SHARED
184 dnl When we start using libtool:
187 dnl When we start using automake:
188 dnl AM_CONFIG_HEADER(config.h:config.in)
189 AC_CONFIG_HEADER(config.h:config.in)
191 dnl When we start using automake:
192 dnl AM_MAINTAINER_MODE
195 dnl When we start using automake:
199 # Don't build the shared library for build.
200 if [[ -n "${with_build_subdir}" ]]; then
206 rs6000-ibm-aix3.1 | rs6000-ibm-aix)
208 *-*-cxux7*) frag=mh-cxux7 ;;
209 *-*-freebsd2.1.*) frag=mh-fbsd21 ;;
210 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;;
211 i370-*-opened*) frag=mh-openedition ;;
212 i[[34567]]86-*-windows*) frag=mh-windows ;;
215 if [[ -n "${frag}" ]]; then
216 frag=${libiberty_topdir}/libiberty/config/$frag
221 # If they didn't specify --enable-shared, don't generate shared libs.
222 case "${enable_shared}" in
229 # ...unless --enable-host-shared was passed from top-level config:
230 if [[ "${enable_host_shared}" = "yes" ]]; then
234 if [[ "${shared}" != "yes" ]]; then
240 case " ${CFLAGS} " in
241 *\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;;
245 echo "# Warning: this fragment is automatically generated" > temp-frag
247 if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
248 echo "Appending ${frag} to xhost-mkfrag"
249 echo "# Following fragment copied from ${frag}" >> temp-frag
250 cat ${frag} >> temp-frag
253 # record if we want to build shared libs.
254 if [[ "${shared}" = "yes" ]]; then
255 echo enable_shared = yes >> temp-frag
257 echo enable_shared = no >> temp-frag
261 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
263 host_makefile_frag=${frag}
264 AC_SUBST_FILE(host_makefile_frag)
266 # It's OK to check for header files. Although the compiler may not be
267 # able to link anything, it had better be able to at least compile
269 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)
273 libiberty_AC_DECLARE_ERRNO
275 # Determine sizes of some types.
276 AC_CHECK_SIZEOF([int])
277 AC_CHECK_SIZEOF([long])
279 # Check for presense of long long
280 AC_CHECK_TYPE([long long],
281 [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])],
284 # Look for a 64-bit type.
285 AC_MSG_CHECKING([for a 64-bit type])
286 AC_CACHE_VAL(liberty_cv_uint64,
288 [#ifdef HAVE_STDINT_H
291 [extern uint64_t foo;],
292 liberty_cv_uint64=uint64_t,
294 [#ifdef HAVE_LIMITS_H
300 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
301 liberty_cv_uint64="unsigned long",
303 [#ifdef HAVE_LIMITS_H
309 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
310 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
311 AC_MSG_RESULT($liberty_cv_uint64)
312 if test "$liberty_cv_uint64" != none; then
313 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
314 [Define to an unsigned 64-bit type available in the compiler.])
321 # Given the above check, we always have uintptr_t or a fallback
322 # definition. So define HAVE_UINTPTR_T in case any imported code
324 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
328 # This is the list of functions which libiberty will provide if they
329 # are not available on the host.
332 funcs="$funcs atexit"
333 funcs="$funcs basename"
336 funcs="$funcs bsearch"
338 funcs="$funcs calloc"
341 funcs="$funcs getcwd"
342 funcs="$funcs getpagesize"
343 funcs="$funcs gettimeofday"
345 funcs="$funcs insque"
346 funcs="$funcs memchr"
347 funcs="$funcs memcmp"
348 funcs="$funcs memcpy"
349 funcs="$funcs memmem"
350 funcs="$funcs memmove"
351 funcs="$funcs mempcpy"
352 funcs="$funcs memset"
353 funcs="$funcs mkstemps"
354 funcs="$funcs putenv"
355 funcs="$funcs random"
356 funcs="$funcs rename"
357 funcs="$funcs rindex"
358 funcs="$funcs setenv"
359 funcs="$funcs snprintf"
360 funcs="$funcs sigsetmask"
361 funcs="$funcs stpcpy"
362 funcs="$funcs stpncpy"
363 funcs="$funcs strcasecmp"
364 funcs="$funcs strchr"
365 funcs="$funcs strdup"
366 funcs="$funcs strncasecmp"
367 funcs="$funcs strndup"
368 funcs="$funcs strnlen"
369 funcs="$funcs strrchr"
370 funcs="$funcs strstr"
371 funcs="$funcs strtod"
372 funcs="$funcs strtol"
373 funcs="$funcs strtoul"
374 funcs="$funcs strtoll"
375 funcs="$funcs strtoull"
376 funcs="$funcs strverscmp"
377 funcs="$funcs tmpnam"
378 funcs="$funcs vasprintf"
379 funcs="$funcs vfprintf"
380 funcs="$funcs vprintf"
381 funcs="$funcs vsnprintf"
382 funcs="$funcs vsprintf"
383 funcs="$funcs waitpid"
384 funcs="$funcs setproctitle"
386 # Also in the old function.def file: alloca, vfork, getopt.
388 vars="sys_errlist sys_nerr sys_siglist"
390 checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \
391 getsysinfo gettimeofday on_exit psignal pstat_getdynamic pstat_getstatic \
392 realpath setrlimit sbrk spawnve spawnvpe strerror strsignal sysconf sysctl \
393 sysmp table times wait3 wait4"
395 # These are neither executed nor required, but they help keep
396 # autoheader happy without adding a bunch of text to acconfig.h.
397 if test "x" = "y"; then
398 AC_CHECK_FUNCS(asprintf atexit \
399 basename bcmp bcopy bsearch bzero \
400 calloc canonicalize_file_name clock \
403 getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \
405 memchr memcmp memcpy memmem memmove memset mkstemps \
407 psignal pstat_getdynamic pstat_getstatic putenv \
408 random realpath rename rindex \
409 sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \
410 stpcpy stpncpy strcasecmp strchr strdup \
411 strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \
412 strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \
414 vasprintf vfprintf vprintf vsprintf \
416 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull])
417 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
418 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
419 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
422 # For each of these functions, if the host does not provide the
423 # function we want to put FN.o in LIBOBJS, and if the host does
424 # provide the function, we want to define HAVE_FN in config.h.
428 if test -n "${with_target_subdir}"; then
430 # We are being configured as a target library. AC_REPLACE_FUNCS
431 # may not work correctly, because the compiler may not be able to
432 # link executables. Note that we may still be being configured
435 # If we are being configured for newlib, we know which functions
436 # newlib provide and which ones we will be expected to provide.
438 if test "x${with_newlib}" = "xyes"; then
439 AC_LIBOBJ([asprintf])
440 AC_LIBOBJ([basename])
444 AC_LIBOBJ([vasprintf])
448 asprintf | basename | insque | random | strdup | vasprintf)
451 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
452 AC_DEFINE_UNQUOTED($n)
457 # newlib doesnt provide any of the variables in $vars, so we
458 # dont have to check them here.
460 # Of the functions in $checkfuncs, newlib only has strerror.
461 AC_DEFINE(HAVE_STRERROR)
467 # If we are being configured for Mingw, we know which functions
468 # Mingw provides and which ones we will be expected to provide.
472 AC_LIBOBJ([asprintf])
473 AC_LIBOBJ([basename])
479 AC_LIBOBJ([getpagesize])
483 AC_LIBOBJ([mkstemps])
486 AC_LIBOBJ([sigsetmask])
491 AC_LIBOBJ([strverscmp])
492 AC_LIBOBJ([vasprintf])
497 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid)
500 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
501 AC_DEFINE_UNQUOTED($n)
506 # Mingw doesnt provide any of the variables in $vars, so we
507 # dont have to check them here.
509 # Of the functions in $checkfuncs, Mingw only has strerror.
510 AC_DEFINE(HAVE_STRERROR)
516 AC_LIBOBJ([vasprintf])
517 AC_LIBOBJ([vsnprintf])
518 AC_LIBOBJ([snprintf])
519 AC_LIBOBJ([asprintf])
521 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
522 getcwd getpagesize getrusage gettimeofday \
523 index insque memchr memcmp memcpy memmove memset psignal \
524 putenv random rename rindex sbrk setenv stpcpy strcasecmp \
525 strchr strdup strerror strncasecmp strrchr strstr strtod \
526 strtol strtoul sysconf times tmpnam vfprintf vprintf \
529 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
530 AC_DEFINE_UNQUOTED($n)
541 # Not a target library, so we set things up to run the test suite.
547 AC_SUBST(target_header_dir)
550 *-*-cygwin* | *-*-mingw*)
551 AC_DEFINE(HAVE_SYS_ERRLIST)
552 AC_DEFINE(HAVE_SYS_NERR)
556 if test -z "${setobjs}"; then
560 # Handle VxWorks configuration specially, since on VxWorks the
561 # libraries are actually on the target board, not in the file
563 AC_LIBOBJ([basename])
564 AC_LIBOBJ([getpagesize])
567 AC_LIBOBJ([strcasecmp])
568 AC_LIBOBJ([strncasecmp])
572 AC_LIBOBJ([vasprintf])
575 basename | getpagesize | insque | random | strcasecmp)
577 strncasecmp | strdup | vfork | waitpid | vasprintf)
580 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
581 AC_DEFINE_UNQUOTED($n)
586 # VxWorks doesn't provide any of the variables in $vars, so we
587 # don't have to check them here.
589 # Of the functions in $checkfuncs, VxWorks only has strerror.
590 AC_DEFINE(HAVE_STRERROR)
598 if test -z "${setobjs}"; then
603 # Under mingw32, sys_nerr and sys_errlist exist, but they are
604 # macros, so the test below won't find them.
605 libiberty_cv_var_sys_nerr=yes
606 libiberty_cv_var_sys_errlist=yes
610 # vfork and fork are stubs.
611 ac_cv_func_vfork_works=no
615 # Under some versions of uwin, vfork is notoriously buggy and the test
616 # can hang configure; on other versions, vfork exists just as a stub.
617 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
618 ac_cv_func_vfork_works=no
619 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
620 # macros (actually, these are imported from a DLL, but the end effect
621 # is the same), so the test below won't find them.
622 libiberty_cv_var_sys_nerr=yes
623 libiberty_cv_var_sys_errlist=yes
627 # Under VMS, vfork works very different than on Unix. The standard test
628 # won't work, and it isn't easily adaptable. It makes more sense to
630 ac_cv_func_vfork_works=yes
635 # We haven't set the list of objects yet. Use the standard autoconf
636 # tests. This will only work if the compiler works.
638 AC_REPLACE_FUNCS($funcs)
639 libiberty_AC_FUNC_C_ALLOCA
641 if test $ac_cv_func_vfork_works = no; then
644 # We only need _doprnt if we might use it to implement v*printf.
645 if test $ac_cv_func_vprintf != yes \
646 || test $ac_cv_func_vfprintf != yes \
647 || test $ac_cv_func_vsprintf != yes; then
648 AC_REPLACE_FUNCS(_doprnt)
650 AC_CHECK_FUNCS(_doprnt)
654 AC_MSG_CHECKING([for $v])
655 AC_CACHE_VAL(libiberty_cv_var_$v,
656 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
657 [eval "libiberty_cv_var_$v=yes"],
658 [eval "libiberty_cv_var_$v=no"])])
659 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
661 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
662 AC_DEFINE_UNQUOTED($n)
668 # special check for _system_configuration because AIX <4.3.2 do not
669 # contain the `physmem' member.
670 AC_MSG_CHECKING([for external symbol _system_configuration])
671 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
672 [[double x = _system_configuration.physmem;]])],
673 [AC_MSG_RESULT([yes])
674 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
675 [Define if you have the _system_configuration variable.])],
676 [AC_MSG_RESULT([no])])
678 AC_CHECK_FUNCS($checkfuncs)
679 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
680 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
681 AC_CHECK_DECLS([strverscmp])
682 libiberty_NEED_DECLARATION(canonicalize_file_name)
685 # Figure out which version of pexecute to use.
687 *-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;;
688 *-*-msdosdjgpp*) pexecute=pex-djgpp ;;
689 *-*-msdos*) pexecute=pex-msdos ;;
690 *) pexecute=pex-unix ;;
694 libiberty_AC_FUNC_STRNCMP
696 # Install a library built with a cross compiler in $(tooldir) rather
698 if test -z "${with_cross_host}"; then
703 AC_SUBST(INSTALL_DEST)
705 m4_pattern_allow(LIBOBJS)
707 for l in x $LIBOBJS; do
715 dnl Required by html and install-html
716 AC_SUBST(datarootdir)
720 # We need multilib support, but only if configuring for the target.
721 AC_CONFIG_FILES([Makefile testsuite/Makefile])
722 AC_CONFIG_COMMANDS([default],
723 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
724 if test -n "$CONFIG_FILES"; then
725 if test -n "${with_target_subdir}"; then
726 # FIXME: We shouldn't need to set ac_file
728 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
729 . ${libiberty_topdir}/config-ml.in
735 with_target_subdir=${with_target_subdir}
736 with_multisubdir=${with_multisubdir}
737 ac_configure_args="--enable-multilib ${ac_configure_args}"
738 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
739 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
740 libiberty_topdir=${libiberty_topdir}