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 = $target_header_dir])
162 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \
163 -Wstrict-prototypes], [ac_libiberty_warn_cflags])
164 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags])
167 # autoconf is lame and doesn't give us any substitution variable for this.
168 if eval "test \"`echo '$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 " ${CFLAGS} " in
242 *\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;;
246 echo "# Warning: this fragment is automatically generated" > temp-frag
248 if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
249 echo "Appending ${frag} to xhost-mkfrag"
250 echo "# Following fragment copied from ${frag}" >> temp-frag
251 cat ${frag} >> temp-frag
254 # record if we want to build shared libs.
255 if [[ "${shared}" = "yes" ]]; then
256 echo enable_shared = yes >> temp-frag
258 echo enable_shared = no >> temp-frag
262 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
264 host_makefile_frag=${frag}
265 AC_SUBST_FILE(host_makefile_frag)
267 # It's OK to check for header files. Although the compiler may not be
268 # able to link anything, it had better be able to at least compile
270 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)
274 libiberty_AC_DECLARE_ERRNO
276 # Determine sizes of some types.
277 AC_CHECK_SIZEOF([int])
278 AC_CHECK_SIZEOF([long])
280 # Check for presense of long long
281 AC_CHECK_TYPE([long long],
282 [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])],
285 # Look for a 64-bit type.
286 AC_MSG_CHECKING([for a 64-bit type])
287 AC_CACHE_VAL(liberty_cv_uint64,
289 [#ifdef HAVE_STDINT_H
292 [extern uint64_t foo;],
293 liberty_cv_uint64=uint64_t,
295 [#ifdef HAVE_LIMITS_H
301 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
302 liberty_cv_uint64="unsigned long",
304 [#ifdef HAVE_LIMITS_H
310 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
311 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
312 AC_MSG_RESULT($liberty_cv_uint64)
313 if test "$liberty_cv_uint64" != none; then
314 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
315 [Define to an unsigned 64-bit type available in the compiler.])
322 # Given the above check, we always have uintptr_t or a fallback
323 # definition. So define HAVE_UINTPTR_T in case any imported code
325 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
329 # This is the list of functions which libiberty will provide if they
330 # are not available on the host.
333 funcs="$funcs atexit"
334 funcs="$funcs basename"
337 funcs="$funcs bsearch"
339 funcs="$funcs calloc"
342 funcs="$funcs getcwd"
343 funcs="$funcs getpagesize"
344 funcs="$funcs gettimeofday"
346 funcs="$funcs insque"
347 funcs="$funcs memchr"
348 funcs="$funcs memcmp"
349 funcs="$funcs memcpy"
350 funcs="$funcs memmem"
351 funcs="$funcs memmove"
352 funcs="$funcs mempcpy"
353 funcs="$funcs memset"
354 funcs="$funcs mkstemps"
355 funcs="$funcs putenv"
356 funcs="$funcs random"
357 funcs="$funcs rename"
358 funcs="$funcs rindex"
359 funcs="$funcs setenv"
360 funcs="$funcs snprintf"
361 funcs="$funcs sigsetmask"
362 funcs="$funcs stpcpy"
363 funcs="$funcs stpncpy"
364 funcs="$funcs strcasecmp"
365 funcs="$funcs strchr"
366 funcs="$funcs strdup"
367 funcs="$funcs strncasecmp"
368 funcs="$funcs strndup"
369 funcs="$funcs strnlen"
370 funcs="$funcs strrchr"
371 funcs="$funcs strstr"
372 funcs="$funcs strtod"
373 funcs="$funcs strtol"
374 funcs="$funcs strtoul"
375 funcs="$funcs strtoll"
376 funcs="$funcs strtoull"
377 funcs="$funcs strverscmp"
378 funcs="$funcs tmpnam"
379 funcs="$funcs vasprintf"
380 funcs="$funcs vfprintf"
381 funcs="$funcs vprintf"
382 funcs="$funcs vsnprintf"
383 funcs="$funcs vsprintf"
384 funcs="$funcs waitpid"
385 funcs="$funcs setproctitle"
387 # Also in the old function.def file: alloca, vfork, getopt.
389 vars="sys_errlist sys_nerr sys_siglist"
391 checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \
392 getsysinfo gettimeofday on_exit psignal pstat_getdynamic pstat_getstatic \
393 realpath setrlimit sbrk spawnve spawnvpe strerror strsignal sysconf sysctl \
394 sysmp table times wait3 wait4"
396 # These are neither executed nor required, but they help keep
397 # autoheader happy without adding a bunch of text to acconfig.h.
398 if test "x" = "y"; then
399 AC_CHECK_FUNCS(asprintf atexit \
400 basename bcmp bcopy bsearch bzero \
401 calloc canonicalize_file_name clock \
404 getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \
406 memchr memcmp memcpy memmem memmove memset mkstemps \
408 psignal pstat_getdynamic pstat_getstatic putenv \
409 random realpath rename rindex \
410 sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \
411 stpcpy stpncpy strcasecmp strchr strdup \
412 strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \
413 strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \
415 vasprintf vfprintf vprintf vsprintf \
417 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull])
418 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
419 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
420 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
423 # For each of these functions, if the host does not provide the
424 # function we want to put FN.o in LIBOBJS, and if the host does
425 # provide the function, we want to define HAVE_FN in config.h.
429 if test -n "${with_target_subdir}"; then
431 # We are being configured as a target library. AC_REPLACE_FUNCS
432 # may not work correctly, because the compiler may not be able to
433 # link executables. Note that we may still be being configured
436 # If we are being configured for newlib, we know which functions
437 # newlib provide and which ones we will be expected to provide.
439 if test "x${with_newlib}" = "xyes"; then
440 AC_LIBOBJ([asprintf])
441 AC_LIBOBJ([basename])
445 AC_LIBOBJ([vasprintf])
449 asprintf | basename | insque | random | strdup | vasprintf)
452 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
453 AC_DEFINE_UNQUOTED($n)
458 # newlib doesnt provide any of the variables in $vars, so we
459 # dont have to check them here.
461 # Of the functions in $checkfuncs, newlib only has strerror.
462 AC_DEFINE(HAVE_STRERROR)
468 # If we are being configured for Mingw, we know which functions
469 # Mingw provides and which ones we will be expected to provide.
473 AC_LIBOBJ([asprintf])
474 AC_LIBOBJ([basename])
480 AC_LIBOBJ([getpagesize])
484 AC_LIBOBJ([mkstemps])
487 AC_LIBOBJ([sigsetmask])
492 AC_LIBOBJ([strverscmp])
493 AC_LIBOBJ([vasprintf])
498 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid)
501 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
502 AC_DEFINE_UNQUOTED($n)
507 # Mingw doesnt provide any of the variables in $vars, so we
508 # dont have to check them here.
510 # Of the functions in $checkfuncs, Mingw only has strerror.
511 AC_DEFINE(HAVE_STRERROR)
517 AC_LIBOBJ([vasprintf])
518 AC_LIBOBJ([vsnprintf])
519 AC_LIBOBJ([snprintf])
520 AC_LIBOBJ([asprintf])
522 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
523 getcwd getpagesize getrusage gettimeofday \
524 index insque memchr memcmp memcpy memmove memset psignal \
525 putenv random rename rindex sbrk setenv stpcpy strcasecmp \
526 strchr strdup strerror strncasecmp strrchr strstr strtod \
527 strtol strtoul sysconf times tmpnam vfprintf vprintf \
530 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
531 AC_DEFINE_UNQUOTED($n)
542 # Not a target library, so we set things up to run the test suite.
548 AC_SUBST(target_header_dir)
551 *-*-cygwin* | *-*-mingw*)
552 AC_DEFINE(HAVE_SYS_ERRLIST)
553 AC_DEFINE(HAVE_SYS_NERR)
557 if test -z "${setobjs}"; then
561 # Handle VxWorks configuration specially, since on VxWorks the
562 # libraries are actually on the target board, not in the file
564 AC_LIBOBJ([basename])
565 AC_LIBOBJ([getpagesize])
568 AC_LIBOBJ([strcasecmp])
569 AC_LIBOBJ([strncasecmp])
573 AC_LIBOBJ([vasprintf])
576 basename | getpagesize | insque | random | strcasecmp)
578 strncasecmp | strdup | vfork | waitpid | vasprintf)
581 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
582 AC_DEFINE_UNQUOTED($n)
587 # VxWorks doesn't provide any of the variables in $vars, so we
588 # don't have to check them here.
590 # Of the functions in $checkfuncs, VxWorks only has strerror.
591 AC_DEFINE(HAVE_STRERROR)
599 if test -z "${setobjs}"; then
604 # Under mingw32, sys_nerr and sys_errlist exist, but they are
605 # macros, so the test below won't find them.
606 libiberty_cv_var_sys_nerr=yes
607 libiberty_cv_var_sys_errlist=yes
611 # vfork and fork are stubs.
612 ac_cv_func_vfork_works=no
616 # Under some versions of uwin, vfork is notoriously buggy and the test
617 # can hang configure; on other versions, vfork exists just as a stub.
618 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
619 ac_cv_func_vfork_works=no
620 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
621 # macros (actually, these are imported from a DLL, but the end effect
622 # is the same), so the test below won't find them.
623 libiberty_cv_var_sys_nerr=yes
624 libiberty_cv_var_sys_errlist=yes
628 # Under VMS, vfork works very different than on Unix. The standard test
629 # won't work, and it isn't easily adaptable. It makes more sense to
631 ac_cv_func_vfork_works=yes
636 # We haven't set the list of objects yet. Use the standard autoconf
637 # tests. This will only work if the compiler works.
639 AC_REPLACE_FUNCS($funcs)
640 libiberty_AC_FUNC_C_ALLOCA
642 if test $ac_cv_func_vfork_works = no; then
645 # We only need _doprnt if we might use it to implement v*printf.
646 if test $ac_cv_func_vprintf != yes \
647 || test $ac_cv_func_vfprintf != yes \
648 || test $ac_cv_func_vsprintf != yes; then
649 AC_REPLACE_FUNCS(_doprnt)
651 AC_CHECK_FUNCS(_doprnt)
655 AC_MSG_CHECKING([for $v])
656 AC_CACHE_VAL(libiberty_cv_var_$v,
657 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
658 [eval "libiberty_cv_var_$v=yes"],
659 [eval "libiberty_cv_var_$v=no"])])
660 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
662 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
663 AC_DEFINE_UNQUOTED($n)
669 # special check for _system_configuration because AIX <4.3.2 do not
670 # contain the `physmem' member.
671 AC_MSG_CHECKING([for external symbol _system_configuration])
672 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
673 [[double x = _system_configuration.physmem;]])],
674 [AC_MSG_RESULT([yes])
675 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
676 [Define if you have the _system_configuration variable.])],
677 [AC_MSG_RESULT([no])])
679 AC_CHECK_FUNCS($checkfuncs)
680 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
681 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
682 AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull])
683 AC_CHECK_DECLS([strverscmp])
684 libiberty_NEED_DECLARATION(canonicalize_file_name)
687 # Figure out which version of pexecute to use.
689 *-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;;
690 *-*-msdosdjgpp*) pexecute=pex-djgpp ;;
691 *-*-msdos*) pexecute=pex-msdos ;;
692 *) pexecute=pex-unix ;;
696 libiberty_AC_FUNC_STRNCMP
698 # Install a library built with a cross compiler in $(tooldir) rather
700 if test -z "${with_cross_host}"; then
705 AC_SUBST(INSTALL_DEST)
707 m4_pattern_allow(LIBOBJS)
709 for l in x $LIBOBJS; do
717 dnl Required by html and install-html
718 AC_SUBST(datarootdir)
722 # We need multilib support, but only if configuring for the target.
723 AC_CONFIG_FILES([Makefile testsuite/Makefile])
724 AC_CONFIG_COMMANDS([default],
725 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
726 if test -n "$CONFIG_FILES"; then
727 if test -n "${with_target_subdir}"; then
728 # FIXME: We shouldn't need to set ac_file
730 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
731 . ${libiberty_topdir}/config-ml.in
737 with_target_subdir=${with_target_subdir}
738 with_multisubdir=${with_multisubdir}
739 ac_configure_args="--enable-multilib ${ac_configure_args}"
740 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
741 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
742 libiberty_topdir=${libiberty_topdir}