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
135 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \
136 -Wstrict-prototypes], [ac_libiberty_warn_cflags])
137 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags])
140 # autoconf is lame and doesn't give us any substitution variable for this.
141 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
142 NO_MINUS_C_MINUS_O=yes
144 OUTPUT_OPTION='-o $@'
146 AC_SUBST(NO_MINUS_C_MINUS_O)
147 AC_SUBST(OUTPUT_OPTION)
153 dnl When we start using libtool:
154 dnl Default to a non shared library. This may be overridden by the
155 dnl configure option --enable-shared.
156 dnl AM_DISABLE_SHARED
158 dnl When we start using libtool:
161 dnl When we start using automake:
162 dnl AM_CONFIG_HEADER(config.h:config.in)
163 AC_CONFIG_HEADER(config.h:config.in)
165 dnl When we start using automake:
166 dnl AM_MAINTAINER_MODE
169 dnl When we start using automake:
173 # Don't build the shared library for build.
174 if [[ -n "${with_build_subdir}" ]]; then
180 rs6000-ibm-aix3.1 | rs6000-ibm-aix)
182 *-*-cxux7*) frag=mh-cxux7 ;;
183 *-*-freebsd2.1.*) frag=mh-fbsd21 ;;
184 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;;
185 i370-*-opened*) frag=mh-openedition ;;
186 i[[34567]]86-*-windows*) frag=mh-windows ;;
189 if [[ -n "${frag}" ]]; then
190 frag=${libiberty_topdir}/libiberty/config/$frag
193 # If they didn't specify --enable-shared, don't generate shared libs.
194 case "${enable_shared}" in
200 if [[ "${shared}" = "yes" ]]; then
203 alpha*-*-linux*) PICFLAG=-fPIC ;;
204 arm*-*-*) PICFLAG=-fPIC ;;
205 hppa*-*-*) PICFLAG=-fPIC ;;
206 i370-*-*) PICFLAG=-fPIC ;;
207 ia64-*-*) PICFLAG=-fpic ;;
208 i[[34567]]86-*-* | x86_64-*-*)
210 m68k-*-*) PICFLAG=-fpic ;;
211 mips*-*-linux) PICFLAG=-fPIC ;;
213 powerpc*-*-*) PICFLAG=-fPIC ;;
214 sparc*-*-*) case "${CFLAGS}" in
215 *-fpic* ) PICFLAG=-fpic ;;
218 s390*-*-*) PICFLAG=-fpic ;;
223 echo "# Warning: this fragment is automatically generated" > temp-frag
225 if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
226 echo "Appending ${frag} to xhost-mkfrag"
227 echo "# Following fragment copied from ${frag}" >> temp-frag
228 cat ${frag} >> temp-frag
231 # record if we want to build shared libs.
232 if [[ "${shared}" = "yes" ]]; then
233 echo enable_shared = yes >> temp-frag
235 echo enable_shared = no >> temp-frag
239 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
241 host_makefile_frag=${frag}
242 AC_SUBST_FILE(host_makefile_frag)
244 # It's OK to check for header files. Although the compiler may not be
245 # able to link anything, it had better be able to at least compile
247 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)
251 libiberty_AC_DECLARE_ERRNO
253 # Determine the size of an int for struct fibnode.
254 AC_CHECK_SIZEOF([int])
256 AC_CHECK_TYPE(uintptr_t, unsigned long)
258 # Look for a 64-bit type.
259 AC_MSG_CHECKING([for a 64-bit type])
260 AC_CACHE_VAL(liberty_cv_uint64,
262 [#ifdef HAVE_STDINT_H
265 [extern uint64_t foo;],
266 liberty_cv_uint64=uint64_t,
268 [#ifdef HAVE_LIMITS_H
274 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
275 liberty_cv_uint64="unsigned long",
277 [#ifdef HAVE_LIMITS_H
283 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
284 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
285 AC_MSG_RESULT($liberty_cv_uint64)
286 if test "$liberty_cv_uint64" != none; then
287 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
288 [Define to an unsigned 64-bit type available in the compiler.])
291 # Given the above check, we always have uintptr_t or a fallback
292 # definition. So define HAVE_UINTPTR_T in case any imported code
294 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
298 # This is the list of functions which libiberty will provide if they
299 # are not available on the host.
302 funcs="$funcs atexit"
303 funcs="$funcs basename"
306 funcs="$funcs bsearch"
308 funcs="$funcs calloc"
311 funcs="$funcs getcwd"
312 funcs="$funcs getpagesize"
313 funcs="$funcs gettimeofday"
315 funcs="$funcs insque"
316 funcs="$funcs memchr"
317 funcs="$funcs memcmp"
318 funcs="$funcs memcpy"
319 funcs="$funcs memmove"
320 funcs="$funcs mempcpy"
321 funcs="$funcs memset"
322 funcs="$funcs mkstemps"
323 funcs="$funcs putenv"
324 funcs="$funcs random"
325 funcs="$funcs rename"
326 funcs="$funcs rindex"
327 funcs="$funcs setenv"
328 funcs="$funcs snprintf"
329 funcs="$funcs sigsetmask"
330 funcs="$funcs stpcpy"
331 funcs="$funcs stpncpy"
332 funcs="$funcs strcasecmp"
333 funcs="$funcs strchr"
334 funcs="$funcs strdup"
335 funcs="$funcs strncasecmp"
336 funcs="$funcs strndup"
337 funcs="$funcs strrchr"
338 funcs="$funcs strstr"
339 funcs="$funcs strtod"
340 funcs="$funcs strtol"
341 funcs="$funcs strtoul"
342 funcs="$funcs strverscmp"
343 funcs="$funcs tmpnam"
344 funcs="$funcs vasprintf"
345 funcs="$funcs vfprintf"
346 funcs="$funcs vprintf"
347 funcs="$funcs vsnprintf"
348 funcs="$funcs vsprintf"
349 funcs="$funcs waitpid"
351 # Also in the old function.def file: alloca, vfork, getopt.
353 vars="sys_errlist sys_nerr sys_siglist"
355 checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
356 checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
357 checkfuncs="$checkfuncs getsysinfo table sysctl wait3 wait4 __fsetlocking"
359 # These are neither executed nor required, but they help keep
360 # autoheader happy without adding a bunch of text to acconfig.h.
361 if test "x" = "y"; then
362 AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
363 getcwd getpagesize gettimeofday index insque mkstemps memchr memcmp memcpy \
364 memmove mempcpy memset putenv random rename rindex sigsetmask \
365 strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strndup strrchr strstr \
366 strtod strtol strtoul strverscmp tmpnam vasprintf vfprintf vprintf \
367 vsprintf waitpid getrusage on_exit psignal strerror strsignal \
368 sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
369 pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl wait3 wait4 \
370 realpath canonicalize_file_name __fsetlocking)
371 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
372 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
373 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
374 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
377 # For each of these functions, if the host does not provide the
378 # function we want to put FN.o in LIBOBJS, and if the host does
379 # provide the function, we want to define HAVE_FN in config.h.
384 if test -n "${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])
446 AC_LIBOBJ([strverscmp])
447 AC_LIBOBJ([vasprintf])
452 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strverscmp | vasprintf | waitpid)
455 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
456 AC_DEFINE_UNQUOTED($n)
461 # Mingw doesnt provide any of the variables in $vars, so we
462 # dont have to check them here.
464 # Of the functions in $checkfuncs, Mingw only has strerror.
465 AC_DEFINE(HAVE_STRERROR)
472 # We may wish to install the target headers somewhere.
473 AC_ARG_ENABLE(install-libiberty,
474 [ --enable-install-libiberty Install headers for end users],
475 enable_install_libiberty=$enableval,
476 enable_install_libiberty=no)dnl
478 # Option parsed, now set things appropriately.
479 case x"$enable_install_libiberty" in
481 target_header_dir=libiberty
487 # This could be sanity-checked in various ways...
488 target_header_dir="${enable_install_libiberty}"
495 # Not a target library, so we set things up to run the test suite.
501 AC_SUBST(target_header_dir)
504 *-*-cygwin* | *-*-mingw*)
505 AC_DEFINE(HAVE_SYS_ERRLIST)
506 AC_DEFINE(HAVE_SYS_NERR)
510 if test -z "${setobjs}"; then
514 # Handle VxWorks configuration specially, since on VxWorks the
515 # libraries are actually on the target board, not in the file
517 AC_LIBOBJ([basename])
518 AC_LIBOBJ([getpagesize])
521 AC_LIBOBJ([strcasecmp])
522 AC_LIBOBJ([strncasecmp])
526 AC_LIBOBJ([vasprintf])
529 basename | getpagesize | insque | random | strcasecmp)
531 strncasecmp | strdup | vfork | waitpid | vasprintf)
534 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
535 AC_DEFINE_UNQUOTED($n)
540 # VxWorks doesn't provide any of the variables in $vars, so we
541 # don't have to check them here.
543 # Of the functions in $checkfuncs, VxWorks only has strerror.
544 AC_DEFINE(HAVE_STRERROR)
550 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
551 getcwd getpagesize getrusage gettimeofday \
552 index insque memchr memcmp memcpy memmove memset psignal \
553 putenv random rename rindex sbrk setenv stpcpy strcasecmp \
554 strchr strdup strerror strncasecmp strrchr strstr strtod \
555 strtol strtoul sysconf times tmpnam vfprintf vprintf \
558 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
559 AC_DEFINE_UNQUOTED($n)
569 if test -z "${setobjs}"; then
574 # The Cygwin library actually uses a couple of files from
575 # libiberty when it is built. If we are building a native
576 # Cygwin, and we run the tests, we will appear to have these
577 # files. However, when we go on to build winsup, we will wind up
578 # with a library which does not have the files, since they should
579 # have come from libiberty.
581 # We handle this by removing the functions the winsup library
582 # provides from our shell variables, so that they appear to be
585 # DJ - only if we're *building* cygwin, not just building *with* cygwin
587 if test -n "${with_target_subdir}"
589 funcs="`echo $funcs | sed -e 's/random//'`"
591 vars="`echo $vars | sed -e 's/sys_siglist//'`"
592 checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
597 # Under mingw32, sys_nerr and sys_errlist exist, but they are
598 # macros, so the test below won't find them.
599 libiberty_cv_var_sys_nerr=yes
600 libiberty_cv_var_sys_errlist=yes
604 # vfork and fork are stubs.
605 ac_cv_func_vfork_works=no
609 # Under some versions of uwin, vfork is notoriously buggy and the test
610 # can hang configure; on other versions, vfork exists just as a stub.
611 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
612 ac_cv_func_vfork_works=no
613 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
614 # macros (actually, these are imported from a DLL, but the end effect
615 # is the same), so the test below won't find them.
616 libiberty_cv_var_sys_nerr=yes
617 libiberty_cv_var_sys_errlist=yes
621 # Under VMS, vfork works very different than on Unix. The standard test
622 # won't work, and it isn't easily adaptable. It makes more sense to
624 ac_cv_func_vfork_works=yes
629 # We haven't set the list of objects yet. Use the standard autoconf
630 # tests. This will only work if the compiler works.
632 AC_REPLACE_FUNCS($funcs)
633 libiberty_AC_FUNC_C_ALLOCA
635 if test $ac_cv_func_vfork_works = no; then
638 # We only need _doprnt if we might use it to implement v*printf.
639 if test $ac_cv_func_vprintf != yes \
640 || test $ac_cv_func_vfprintf != yes \
641 || test $ac_cv_func_vsprintf != yes; then
642 AC_REPLACE_FUNCS(_doprnt)
644 AC_CHECK_FUNCS(_doprnt)
648 AC_MSG_CHECKING([for $v])
649 AC_CACHE_VAL(libiberty_cv_var_$v,
650 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
651 [eval "libiberty_cv_var_$v=yes"],
652 [eval "libiberty_cv_var_$v=no"])])
653 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
655 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
656 AC_DEFINE_UNQUOTED($n)
662 # special check for _system_configuration because AIX <4.3.2 do not
663 # contain the `physmem' member.
664 AC_MSG_CHECKING([for external symbol _system_configuration])
665 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
666 [[double x = _system_configuration.physmem;]])],
667 [AC_MSG_RESULT([yes])
668 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
669 [Define if you have the _system_configuration variable.])],
670 [AC_MSG_RESULT([no])])
672 AC_CHECK_FUNCS($checkfuncs)
673 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
674 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
675 AC_CHECK_DECLS([strverscmp])
676 libiberty_NEED_DECLARATION(canonicalize_file_name)
679 # Figure out which version of pexecute to use.
681 *-*-mingw* | *-*-winnt*) pexecute=./pex-win32.o ;;
682 *-*-msdosdjgpp*) pexecute=./pex-djgpp.o ;;
683 *-*-msdos*) pexecute=./pex-msdos.o ;;
684 *) pexecute=./pex-unix.o ;;
688 libiberty_AC_FUNC_STRNCMP
690 # Install a library built with a cross compiler in $(tooldir) rather
692 if test -z "${with_cross_host}"; then
697 AC_SUBST(INSTALL_DEST)
699 m4_pattern_allow(LIBOBJS)
701 for l in x $LIBOBJS; do
709 dnl Required by html and install-html
710 AC_SUBST(datarootdir)
714 # We need multilib support, but only if configuring for the target.
715 AC_CONFIG_FILES([Makefile testsuite/Makefile])
716 AC_CONFIG_COMMANDS([default],
717 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
718 if test -n "$CONFIG_FILES"; then
719 if test -n "${with_target_subdir}"; then
720 # FIXME: We shouldn't need to set ac_file
722 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
723 . ${libiberty_topdir}/config-ml.in
729 with_target_subdir=${with_target_subdir}
730 with_multisubdir=${with_multisubdir}
731 ac_configure_args="--enable-multilib ${ac_configure_args}"
732 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
733 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
734 libiberty_topdir=${libiberty_topdir}