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
136 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \
137 -Wstrict-prototypes], [ac_libiberty_warn_cflags])
138 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags])
141 # autoconf is lame and doesn't give us any substitution variable for this.
142 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
143 NO_MINUS_C_MINUS_O=yes
145 OUTPUT_OPTION='-o $@'
147 AC_SUBST(NO_MINUS_C_MINUS_O)
148 AC_SUBST(OUTPUT_OPTION)
154 dnl When we start using libtool:
155 dnl Default to a non shared library. This may be overridden by the
156 dnl configure option --enable-shared.
157 dnl AM_DISABLE_SHARED
159 dnl When we start using libtool:
162 dnl When we start using automake:
163 dnl AM_CONFIG_HEADER(config.h:config.in)
164 AC_CONFIG_HEADER(config.h:config.in)
166 dnl When we start using automake:
167 dnl AM_MAINTAINER_MODE
170 dnl When we start using automake:
174 # Don't build the shared library for build.
175 if [[ -n "${with_build_subdir}" ]]; then
181 rs6000-ibm-aix3.1 | rs6000-ibm-aix)
183 *-*-cxux7*) frag=mh-cxux7 ;;
184 *-*-freebsd2.1.*) frag=mh-fbsd21 ;;
185 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;;
186 i370-*-opened*) frag=mh-openedition ;;
187 i[[34567]]86-*-windows*) frag=mh-windows ;;
190 if [[ -n "${frag}" ]]; then
191 frag=${libiberty_topdir}/libiberty/config/$frag
196 # If they didn't specify --enable-shared, don't generate shared libs.
197 case "${enable_shared}" in
203 if [[ "${shared}" != "yes" ]]; then
208 echo "# Warning: this fragment is automatically generated" > temp-frag
210 if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
211 echo "Appending ${frag} to xhost-mkfrag"
212 echo "# Following fragment copied from ${frag}" >> temp-frag
213 cat ${frag} >> temp-frag
216 # record if we want to build shared libs.
217 if [[ "${shared}" = "yes" ]]; then
218 echo enable_shared = yes >> temp-frag
220 echo enable_shared = no >> temp-frag
224 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
226 host_makefile_frag=${frag}
227 AC_SUBST_FILE(host_makefile_frag)
229 # It's OK to check for header files. Although the compiler may not be
230 # able to link anything, it had better be able to at least compile
232 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)
236 libiberty_AC_DECLARE_ERRNO
238 # Determine the size of an int for struct fibnode.
239 AC_CHECK_SIZEOF([int])
241 # Look for a 64-bit type.
242 AC_MSG_CHECKING([for a 64-bit type])
243 AC_CACHE_VAL(liberty_cv_uint64,
245 [#ifdef HAVE_STDINT_H
248 [extern uint64_t foo;],
249 liberty_cv_uint64=uint64_t,
251 [#ifdef HAVE_LIMITS_H
257 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
258 liberty_cv_uint64="unsigned long",
260 [#ifdef HAVE_LIMITS_H
266 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
267 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
268 AC_MSG_RESULT($liberty_cv_uint64)
269 if test "$liberty_cv_uint64" != none; then
270 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
271 [Define to an unsigned 64-bit type available in the compiler.])
278 # Given the above check, we always have uintptr_t or a fallback
279 # definition. So define HAVE_UINTPTR_T in case any imported code
281 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
285 # This is the list of functions which libiberty will provide if they
286 # are not available on the host.
289 funcs="$funcs atexit"
290 funcs="$funcs basename"
293 funcs="$funcs bsearch"
295 funcs="$funcs calloc"
298 funcs="$funcs getcwd"
299 funcs="$funcs getpagesize"
300 funcs="$funcs gettimeofday"
302 funcs="$funcs insque"
303 funcs="$funcs memchr"
304 funcs="$funcs memcmp"
305 funcs="$funcs memcpy"
306 funcs="$funcs memmem"
307 funcs="$funcs memmove"
308 funcs="$funcs mempcpy"
309 funcs="$funcs memset"
310 funcs="$funcs mkstemps"
311 funcs="$funcs putenv"
312 funcs="$funcs random"
313 funcs="$funcs rename"
314 funcs="$funcs rindex"
315 funcs="$funcs setenv"
316 funcs="$funcs snprintf"
317 funcs="$funcs sigsetmask"
318 funcs="$funcs stpcpy"
319 funcs="$funcs stpncpy"
320 funcs="$funcs strcasecmp"
321 funcs="$funcs strchr"
322 funcs="$funcs strdup"
323 funcs="$funcs strncasecmp"
324 funcs="$funcs strndup"
325 funcs="$funcs strnlen"
326 funcs="$funcs strrchr"
327 funcs="$funcs strstr"
328 funcs="$funcs strtod"
329 funcs="$funcs strtol"
330 funcs="$funcs strtoul"
331 funcs="$funcs strverscmp"
332 funcs="$funcs tmpnam"
333 funcs="$funcs vasprintf"
334 funcs="$funcs vfprintf"
335 funcs="$funcs vprintf"
336 funcs="$funcs vsnprintf"
337 funcs="$funcs vsprintf"
338 funcs="$funcs waitpid"
339 funcs="$funcs setproctitle"
341 # Also in the old function.def file: alloca, vfork, getopt.
343 vars="sys_errlist sys_nerr sys_siglist"
345 checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \
346 getsysinfo gettimeofday on_exit psignal pstat_getdynamic pstat_getstatic \
347 realpath setrlimit sbrk spawnve spawnvpe strerror strsignal sysconf sysctl \
348 sysmp table times wait3 wait4"
350 # These are neither executed nor required, but they help keep
351 # autoheader happy without adding a bunch of text to acconfig.h.
352 if test "x" = "y"; then
353 AC_CHECK_FUNCS(asprintf atexit \
354 basename bcmp bcopy bsearch bzero \
355 calloc canonicalize_file_name clock \
358 getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \
360 memchr memcmp memcpy memmem memmove memset mkstemps \
362 psignal pstat_getdynamic pstat_getstatic putenv \
363 random realpath rename rindex \
364 sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \
365 stpcpy stpncpy strcasecmp strchr strdup \
366 strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \
367 strtol strtoul strverscmp sysconf sysctl sysmp \
369 vasprintf vfprintf vprintf vsprintf \
371 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
372 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
373 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
374 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
377 # For each of these functions, if the host does not provide the
378 # function we want to put FN.o in LIBOBJS, and if the host does
379 # provide the function, we want to define HAVE_FN in config.h.
384 if test -n "${with_target_subdir}"; then
386 # We are being configured as a target library. AC_REPLACE_FUNCS
387 # may not work correctly, because the compiler may not be able to
388 # link executables. Note that we may still be being configured
391 # If we are being configured for newlib, we know which functions
392 # newlib provide and which ones we will be expected to provide.
394 if test "x${with_newlib}" = "xyes"; then
395 AC_LIBOBJ([asprintf])
396 AC_LIBOBJ([basename])
400 AC_LIBOBJ([vasprintf])
404 asprintf | basename | insque | random | strdup | vasprintf)
407 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
408 AC_DEFINE_UNQUOTED($n)
413 # newlib doesnt provide any of the variables in $vars, so we
414 # dont have to check them here.
416 # Of the functions in $checkfuncs, newlib only has strerror.
417 AC_DEFINE(HAVE_STRERROR)
423 # If we are being configured for Mingw, we know which functions
424 # Mingw provides and which ones we will be expected to provide.
428 AC_LIBOBJ([asprintf])
429 AC_LIBOBJ([basename])
435 AC_LIBOBJ([getpagesize])
439 AC_LIBOBJ([mkstemps])
442 AC_LIBOBJ([sigsetmask])
447 AC_LIBOBJ([strverscmp])
448 AC_LIBOBJ([vasprintf])
453 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid)
456 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
457 AC_DEFINE_UNQUOTED($n)
462 # Mingw doesnt provide any of the variables in $vars, so we
463 # dont have to check them here.
465 # Of the functions in $checkfuncs, Mingw only has strerror.
466 AC_DEFINE(HAVE_STRERROR)
472 AC_LIBOBJ([vasprintf])
473 AC_LIBOBJ([vsnprintf])
474 AC_LIBOBJ([snprintf])
475 AC_LIBOBJ([asprintf])
477 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
478 getcwd getpagesize getrusage gettimeofday \
479 index insque memchr memcmp memcpy memmove memset psignal \
480 putenv random rename rindex sbrk setenv stpcpy strcasecmp \
481 strchr strdup strerror strncasecmp strrchr strstr strtod \
482 strtol strtoul sysconf times tmpnam vfprintf vprintf \
485 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
486 AC_DEFINE_UNQUOTED($n)
495 # We may wish to install the target headers somewhere.
496 AC_ARG_ENABLE(install-libiberty,
497 [ --enable-install-libiberty Install headers for end users],
498 enable_install_libiberty=$enableval,
499 enable_install_libiberty=no)dnl
501 # Option parsed, now set things appropriately.
502 case x"$enable_install_libiberty" in
504 target_header_dir=libiberty
510 # This could be sanity-checked in various ways...
511 target_header_dir="${enable_install_libiberty}"
518 # Not a target library, so we set things up to run the test suite.
524 AC_SUBST(target_header_dir)
527 *-*-cygwin* | *-*-mingw*)
528 AC_DEFINE(HAVE_SYS_ERRLIST)
529 AC_DEFINE(HAVE_SYS_NERR)
533 if test -z "${setobjs}"; then
537 # Handle VxWorks configuration specially, since on VxWorks the
538 # libraries are actually on the target board, not in the file
540 AC_LIBOBJ([basename])
541 AC_LIBOBJ([getpagesize])
544 AC_LIBOBJ([strcasecmp])
545 AC_LIBOBJ([strncasecmp])
549 AC_LIBOBJ([vasprintf])
552 basename | getpagesize | insque | random | strcasecmp)
554 strncasecmp | strdup | vfork | waitpid | vasprintf)
557 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
558 AC_DEFINE_UNQUOTED($n)
563 # VxWorks doesn't provide any of the variables in $vars, so we
564 # don't have to check them here.
566 # Of the functions in $checkfuncs, VxWorks only has strerror.
567 AC_DEFINE(HAVE_STRERROR)
575 if test -z "${setobjs}"; then
580 # Under mingw32, sys_nerr and sys_errlist exist, but they are
581 # macros, so the test below won't find them.
582 libiberty_cv_var_sys_nerr=yes
583 libiberty_cv_var_sys_errlist=yes
587 # vfork and fork are stubs.
588 ac_cv_func_vfork_works=no
592 # Under some versions of uwin, vfork is notoriously buggy and the test
593 # can hang configure; on other versions, vfork exists just as a stub.
594 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
595 ac_cv_func_vfork_works=no
596 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
597 # macros (actually, these are imported from a DLL, but the end effect
598 # is the same), so the test below won't find them.
599 libiberty_cv_var_sys_nerr=yes
600 libiberty_cv_var_sys_errlist=yes
604 # Under VMS, vfork works very different than on Unix. The standard test
605 # won't work, and it isn't easily adaptable. It makes more sense to
607 ac_cv_func_vfork_works=yes
612 # We haven't set the list of objects yet. Use the standard autoconf
613 # tests. This will only work if the compiler works.
615 AC_REPLACE_FUNCS($funcs)
616 libiberty_AC_FUNC_C_ALLOCA
618 if test $ac_cv_func_vfork_works = no; then
621 # We only need _doprnt if we might use it to implement v*printf.
622 if test $ac_cv_func_vprintf != yes \
623 || test $ac_cv_func_vfprintf != yes \
624 || test $ac_cv_func_vsprintf != yes; then
625 AC_REPLACE_FUNCS(_doprnt)
627 AC_CHECK_FUNCS(_doprnt)
631 AC_MSG_CHECKING([for $v])
632 AC_CACHE_VAL(libiberty_cv_var_$v,
633 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
634 [eval "libiberty_cv_var_$v=yes"],
635 [eval "libiberty_cv_var_$v=no"])])
636 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
638 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
639 AC_DEFINE_UNQUOTED($n)
645 # special check for _system_configuration because AIX <4.3.2 do not
646 # contain the `physmem' member.
647 AC_MSG_CHECKING([for external symbol _system_configuration])
648 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
649 [[double x = _system_configuration.physmem;]])],
650 [AC_MSG_RESULT([yes])
651 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
652 [Define if you have the _system_configuration variable.])],
653 [AC_MSG_RESULT([no])])
655 AC_CHECK_FUNCS($checkfuncs)
656 AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
657 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
658 AC_CHECK_DECLS([strverscmp])
659 libiberty_NEED_DECLARATION(canonicalize_file_name)
662 # Figure out which version of pexecute to use.
664 *-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;;
665 *-*-msdosdjgpp*) pexecute=pex-djgpp ;;
666 *-*-msdos*) pexecute=pex-msdos ;;
667 *) pexecute=pex-unix ;;
671 libiberty_AC_FUNC_STRNCMP
673 # Install a library built with a cross compiler in $(tooldir) rather
675 if test -z "${with_cross_host}"; then
680 AC_SUBST(INSTALL_DEST)
682 m4_pattern_allow(LIBOBJS)
684 for l in x $LIBOBJS; do
692 dnl Required by html and install-html
693 AC_SUBST(datarootdir)
697 # We need multilib support, but only if configuring for the target.
698 AC_CONFIG_FILES([Makefile testsuite/Makefile])
699 AC_CONFIG_COMMANDS([default],
700 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
701 if test -n "$CONFIG_FILES"; then
702 if test -n "${with_target_subdir}"; then
703 # FIXME: We shouldn't need to set ac_file
705 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
706 . ${libiberty_topdir}/config-ml.in
712 with_target_subdir=${with_target_subdir}
713 with_multisubdir=${with_multisubdir}
714 ac_configure_args="--enable-multilib ${ac_configure_args}"
715 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
716 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
717 libiberty_topdir=${libiberty_topdir}