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 = $target_header_dir])
162 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \
163 -Wstrict-prototypes \
164 -Wshadow=local], [ac_libiberty_warn_cflags])
165 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags])
168 # autoconf is lame and doesn't give us any substitution variable for this.
169 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
170 NO_MINUS_C_MINUS_O=yes
172 OUTPUT_OPTION='-o $@'
174 AC_SUBST(NO_MINUS_C_MINUS_O)
175 AC_SUBST(OUTPUT_OPTION)
181 dnl When we start using libtool:
182 dnl Default to a non shared library. This may be overridden by the
183 dnl configure option --enable-shared.
184 dnl AM_DISABLE_SHARED
186 dnl When we start using libtool:
189 dnl When we start using automake:
190 dnl AM_CONFIG_HEADER(config.h:config.in)
191 AC_CONFIG_HEADER(config.h:config.in)
193 dnl When we start using automake:
194 dnl AM_MAINTAINER_MODE
197 dnl When we start using automake:
201 # Don't build the shared library for build.
202 if [[ -n "${with_build_subdir}" ]]; then
208 rs6000-ibm-aix3.1 | rs6000-ibm-aix)
210 *-*-cxux7*) frag=mh-cxux7 ;;
211 *-*-freebsd2.1.*) frag=mh-fbsd21 ;;
212 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;;
213 i370-*-opened*) frag=mh-openedition ;;
214 i[[34567]]86-*-windows*) frag=mh-windows ;;
217 if [[ -n "${frag}" ]]; then
218 frag=${libiberty_topdir}/libiberty/config/$frag
223 # If they didn't specify --enable-shared, don't generate shared libs.
224 case "${enable_shared}" in
231 # ...unless --enable-host-shared was passed from top-level config:
232 if [[ "${enable_host_shared}" = "yes" ]]; then
236 if [[ "${shared}" != "yes" ]]; then
242 case " ${CFLAGS} " in
243 *\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;;
247 echo "# Warning: this fragment is automatically generated" > temp-frag
249 if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
250 echo "Appending ${frag} to xhost-mkfrag"
251 echo "# Following fragment copied from ${frag}" >> temp-frag
252 cat ${frag} >> temp-frag
255 # record if we want to build shared libs.
256 if [[ "${shared}" = "yes" ]]; then
257 echo enable_shared = yes >> temp-frag
259 echo enable_shared = no >> temp-frag
263 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
265 host_makefile_frag=${frag}
266 AC_SUBST_FILE(host_makefile_frag)
268 # It's OK to check for header files. Although the compiler may not be
269 # able to link anything, it had better be able to at least compile
271 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)
275 libiberty_AC_DECLARE_ERRNO
277 # Determine sizes of some types.
278 AC_CHECK_SIZEOF([int])
279 AC_CHECK_SIZEOF([long])
280 AC_CHECK_SIZEOF([size_t])
282 # Check for presense of long long
283 AC_CHECK_TYPE([long long],
284 [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])],
287 # Look for a 64-bit type.
288 AC_MSG_CHECKING([for a 64-bit type])
289 AC_CACHE_VAL(liberty_cv_uint64,
291 [#ifdef HAVE_STDINT_H
294 [extern uint64_t foo;],
295 liberty_cv_uint64=uint64_t,
297 [#ifdef HAVE_LIMITS_H
303 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
304 liberty_cv_uint64="unsigned long",
306 [#ifdef HAVE_LIMITS_H
312 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
313 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
314 AC_MSG_RESULT($liberty_cv_uint64)
315 if test "$liberty_cv_uint64" != none; then
316 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
317 [Define to an unsigned 64-bit type available in the compiler.])
324 # Given the above check, we always have uintptr_t or a fallback
325 # definition. So define HAVE_UINTPTR_T in case any imported code
327 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
331 # This is the list of functions which libiberty will provide if they
332 # are not available on the host.
335 funcs="$funcs atexit"
336 funcs="$funcs basename"
339 funcs="$funcs bsearch"
341 funcs="$funcs calloc"
344 funcs="$funcs getcwd"
345 funcs="$funcs getpagesize"
346 funcs="$funcs gettimeofday"
348 funcs="$funcs insque"
349 funcs="$funcs memchr"
350 funcs="$funcs memcmp"
351 funcs="$funcs memcpy"
352 funcs="$funcs memmem"
353 funcs="$funcs memmove"
354 funcs="$funcs mempcpy"
355 funcs="$funcs memset"
356 funcs="$funcs mkstemps"
357 funcs="$funcs putenv"
358 funcs="$funcs random"
359 funcs="$funcs rename"
360 funcs="$funcs rindex"
361 funcs="$funcs setenv"
362 funcs="$funcs snprintf"
363 funcs="$funcs sigsetmask"
364 funcs="$funcs stpcpy"
365 funcs="$funcs stpncpy"
366 funcs="$funcs strcasecmp"
367 funcs="$funcs strchr"
368 funcs="$funcs strdup"
369 funcs="$funcs strncasecmp"
370 funcs="$funcs strndup"
371 funcs="$funcs strnlen"
372 funcs="$funcs strrchr"
373 funcs="$funcs strstr"
374 funcs="$funcs strtod"
375 funcs="$funcs strtol"
376 funcs="$funcs strtoul"
377 funcs="$funcs strtoll"
378 funcs="$funcs strtoull"
379 funcs="$funcs strverscmp"
380 funcs="$funcs tmpnam"
381 funcs="$funcs vasprintf"
382 funcs="$funcs vfprintf"
383 funcs="$funcs vprintf"
384 funcs="$funcs vsnprintf"
385 funcs="$funcs vsprintf"
386 funcs="$funcs waitpid"
387 funcs="$funcs setproctitle"
389 # Also in the old function.def file: alloca, vfork, getopt.
391 vars="sys_errlist sys_nerr sys_siglist"
393 checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \
394 getsysinfo gettimeofday on_exit psignal pstat_getdynamic pstat_getstatic \
395 realpath setrlimit sbrk spawnve spawnvpe strerror strsignal sysconf sysctl \
396 sysmp table times wait3 wait4"
398 # These are neither executed nor required, but they help keep
399 # autoheader happy without adding a bunch of text to acconfig.h.
400 if test "x" = "y"; then
401 AC_CHECK_FUNCS(asprintf atexit \
402 basename bcmp bcopy bsearch bzero \
403 calloc canonicalize_file_name clock \
406 getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \
408 memchr memcmp memcpy memmem memmove memset mkstemps \
410 psignal pstat_getdynamic pstat_getstatic putenv \
411 random realpath rename rindex \
412 sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \
413 stpcpy stpncpy strcasecmp strchr strdup \
414 strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \
415 strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \
417 vasprintf vfprintf vprintf vsprintf \
419 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull, strnlen])
420 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
421 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
422 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
425 # For each of these functions, if the host does not provide the
426 # function we want to put FN.o in LIBOBJS, and if the host does
427 # provide the function, we want to define HAVE_FN in config.h.
431 if test -n "${with_target_subdir}"; then
433 # We are being configured as a target library. AC_REPLACE_FUNCS
434 # may not work correctly, because the compiler may not be able to
435 # link executables. Note that we may still be being configured
438 # If we are being configured for newlib, we know which functions
439 # newlib provide and which ones we will be expected to provide.
441 if test "x${with_newlib}" = "xyes"; then
442 AC_LIBOBJ([asprintf])
443 AC_LIBOBJ([basename])
447 AC_LIBOBJ([vasprintf])
451 asprintf | basename | insque | random | strdup | vasprintf)
454 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
455 AC_DEFINE_UNQUOTED($n)
460 # newlib doesnt provide any of the variables in $vars, so we
461 # dont have to check them here.
463 # Of the functions in $checkfuncs, newlib only has strerror.
464 AC_DEFINE(HAVE_STRERROR)
470 # If we are being configured for Mingw, we know which functions
471 # Mingw provides and which ones we will be expected to provide.
475 AC_LIBOBJ([asprintf])
476 AC_LIBOBJ([basename])
482 AC_LIBOBJ([getpagesize])
486 AC_LIBOBJ([mkstemps])
489 AC_LIBOBJ([sigsetmask])
494 AC_LIBOBJ([strverscmp])
495 AC_LIBOBJ([vasprintf])
500 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid)
503 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
504 AC_DEFINE_UNQUOTED($n)
509 # Mingw doesnt provide any of the variables in $vars, so we
510 # dont have to check them here.
512 # Of the functions in $checkfuncs, Mingw only has strerror.
513 AC_DEFINE(HAVE_STRERROR)
519 AC_LIBOBJ([vasprintf])
520 AC_LIBOBJ([vsnprintf])
521 AC_LIBOBJ([snprintf])
522 AC_LIBOBJ([asprintf])
524 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
525 getcwd getpagesize getrusage gettimeofday \
526 index insque memchr memcmp memcpy memmove memset psignal \
527 putenv random rename rindex sbrk setenv stpcpy strcasecmp \
528 strchr strdup strerror strncasecmp strrchr strstr strtod \
529 strtol strtoul sysconf times tmpnam vfprintf vprintf \
532 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
533 AC_DEFINE_UNQUOTED($n)
544 # Not a target library, so we set things up to run the test suite.
550 AC_SUBST(target_header_dir)
553 *-*-cygwin* | *-*-mingw*)
554 AC_DEFINE(HAVE_SYS_ERRLIST)
555 AC_DEFINE(HAVE_SYS_NERR)
559 if test -z "${setobjs}"; then
563 # Handle VxWorks configuration specially, since on VxWorks the
564 # libraries are actually on the target board, not in the file
566 AC_LIBOBJ([basename])
567 AC_LIBOBJ([getpagesize])
570 AC_LIBOBJ([strcasecmp])
571 AC_LIBOBJ([strncasecmp])
575 AC_LIBOBJ([vasprintf])
578 basename | getpagesize | insque | random | strcasecmp)
580 strncasecmp | strdup | vfork | waitpid | vasprintf)
583 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
584 AC_DEFINE_UNQUOTED($n)
589 # VxWorks doesn't provide any of the variables in $vars, so we
590 # don't have to check them here.
592 # Of the functions in $checkfuncs, VxWorks only has strerror.
593 AC_DEFINE(HAVE_STRERROR)
601 if test -z "${setobjs}"; then
606 # On android, getpagesize is defined in unistd.h as a static inline
607 # function, which AC_CHECK_FUNCS does not handle properly.
608 ac_cv_func_getpagesize=yes
612 # Under mingw32, sys_nerr and sys_errlist exist, but they are
613 # macros, so the test below won't find them.
614 libiberty_cv_var_sys_nerr=yes
615 libiberty_cv_var_sys_errlist=yes
619 # vfork and fork are stubs.
620 ac_cv_func_vfork_works=no
624 # Under some versions of uwin, vfork is notoriously buggy and the test
625 # can hang configure; on other versions, vfork exists just as a stub.
626 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
627 ac_cv_func_vfork_works=no
628 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
629 # macros (actually, these are imported from a DLL, but the end effect
630 # is the same), so the test below won't find them.
631 libiberty_cv_var_sys_nerr=yes
632 libiberty_cv_var_sys_errlist=yes
636 # Under VMS, vfork works very different than on Unix. The standard test
637 # won't work, and it isn't easily adaptable. It makes more sense to
639 ac_cv_func_vfork_works=yes
644 # We haven't set the list of objects yet. Use the standard autoconf
645 # tests. This will only work if the compiler works.
647 AC_REPLACE_FUNCS($funcs)
648 libiberty_AC_FUNC_C_ALLOCA
650 if test $ac_cv_func_vfork_works = no; then
653 # We only need _doprnt if we might use it to implement v*printf.
654 if test $ac_cv_func_vprintf != yes \
655 || test $ac_cv_func_vfprintf != yes \
656 || test $ac_cv_func_vsprintf != yes; then
657 AC_REPLACE_FUNCS(_doprnt)
659 AC_CHECK_FUNCS(_doprnt)
663 AC_MSG_CHECKING([for $v])
664 AC_CACHE_VAL(libiberty_cv_var_$v,
665 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
666 [eval "libiberty_cv_var_$v=yes"],
667 [eval "libiberty_cv_var_$v=no"])])
668 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
670 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
671 AC_DEFINE_UNQUOTED($n)
677 # special check for _system_configuration because AIX <4.3.2 do not
678 # contain the `physmem' member.
679 AC_MSG_CHECKING([for external symbol _system_configuration])
680 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
681 [[double x = _system_configuration.physmem;]])],
682 [AC_MSG_RESULT([yes])
683 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
684 [Define if you have the _system_configuration variable.])],
685 [AC_MSG_RESULT([no])])
687 AC_CHECK_FUNCS($checkfuncs)
688 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
689 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
690 AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull])
691 AC_CHECK_DECLS([strverscmp])
692 AC_CHECK_DECLS([strnlen])
693 libiberty_NEED_DECLARATION(canonicalize_file_name)
696 # Figure out which version of pexecute to use.
698 *-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;;
699 *-*-msdosdjgpp*) pexecute=pex-djgpp ;;
700 *-*-msdos*) pexecute=pex-msdos ;;
701 *) pexecute=pex-unix ;;
705 libiberty_AC_FUNC_STRNCMP
707 # Install a library built with a cross compiler in $(tooldir) rather
709 if test -z "${with_cross_host}"; then
714 AC_SUBST(INSTALL_DEST)
716 m4_pattern_allow(LIBOBJS)
718 for l in x $LIBOBJS; do
726 dnl Required by html and install-html
727 AC_SUBST(datarootdir)
731 # We need multilib support, but only if configuring for the target.
732 AC_CONFIG_FILES([Makefile testsuite/Makefile])
733 AC_CONFIG_COMMANDS([default],
734 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
735 if test -n "$CONFIG_FILES"; then
736 if test -n "${with_target_subdir}"; then
737 # FIXME: We shouldn't need to set ac_file
739 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
740 . ${libiberty_topdir}/config-ml.in
746 with_target_subdir=${with_target_subdir}
747 with_multisubdir=${with_multisubdir}
748 ac_configure_args="--enable-multilib ${ac_configure_args}"
749 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
750 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
751 libiberty_topdir=${libiberty_topdir}