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/$frag
194 # If they didn't specify --enable-shared, don't generate shared libs.
195 case "${enable_shared}" in
201 if [[ "${shared}" = "yes" ]]; then
204 alpha*-*-linux*) PICFLAG=-fPIC ;;
205 arm*-*-*) PICFLAG=-fPIC ;;
206 hppa*-*-*) PICFLAG=-fPIC ;;
207 i370-*-*) PICFLAG=-fPIC ;;
208 ia64-*-*) PICFLAG=-fpic ;;
209 i[[34567]]86-*-* | x86_64-*-*)
211 m68k-*-*) PICFLAG=-fpic ;;
212 mips*-*-linux) PICFLAG=-fPIC ;;
214 powerpc*-*-*) PICFLAG=-fPIC ;;
215 sparc*-*-*) case "${CFLAGS}" in
216 *-fpic* ) PICFLAG=-fpic ;;
219 s390*-*-*) PICFLAG=-fpic ;;
224 echo "# Warning: this fragment is automatically generated" > temp-frag
226 if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
227 echo "Appending ${frag} to xhost-mkfrag"
228 echo "# Following fragment copied from ${frag}" >> temp-frag
229 cat ${frag} >> temp-frag
232 # record if we want to build shared libs.
233 if [[ "${shared}" = "yes" ]]; then
234 echo enable_shared = yes >> temp-frag
236 echo enable_shared = no >> temp-frag
240 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
242 host_makefile_frag=${frag}
243 AC_SUBST_FILE(host_makefile_frag)
245 # It's OK to check for header files. Although the compiler may not be
246 # able to link anything, it had better be able to at least compile
248 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)
252 libiberty_AC_DECLARE_ERRNO
254 # Determine the size of an int for struct fibnode.
255 AC_CHECK_SIZEOF([int])
257 AC_CHECK_TYPE(uintptr_t, unsigned long)
259 # Look for a 64-bit type.
260 AC_MSG_CHECKING([for a 64-bit type])
261 AC_CACHE_VAL(liberty_cv_uint64,
263 [#ifdef HAVE_STDINT_H
266 [extern uint64_t foo;],
267 liberty_cv_uint64=uint64_t,
269 [#ifdef HAVE_LIMITS_H
275 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
276 liberty_cv_uint64="unsigned long",
278 [#ifdef HAVE_LIMITS_H
284 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
285 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
286 AC_MSG_RESULT($liberty_cv_uint64)
287 if test "$liberty_cv_uint64" != none; then
288 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
289 [Define to an unsigned 64-bit type available in the compiler.])
292 # Given the above check, we always have uintptr_t or a fallback
293 # definition. So define HAVE_UINTPTR_T in case any imported code
295 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
299 # This is the list of functions which libiberty will provide if they
300 # are not available on the host.
303 funcs="$funcs atexit"
304 funcs="$funcs basename"
307 funcs="$funcs bsearch"
309 funcs="$funcs calloc"
312 funcs="$funcs getcwd"
313 funcs="$funcs getpagesize"
314 funcs="$funcs gettimeofday"
316 funcs="$funcs insque"
317 funcs="$funcs memchr"
318 funcs="$funcs memcmp"
319 funcs="$funcs memcpy"
320 funcs="$funcs memmove"
321 funcs="$funcs mempcpy"
322 funcs="$funcs memset"
323 funcs="$funcs mkstemps"
324 funcs="$funcs putenv"
325 funcs="$funcs random"
326 funcs="$funcs rename"
327 funcs="$funcs rindex"
328 funcs="$funcs setenv"
329 funcs="$funcs snprintf"
330 funcs="$funcs sigsetmask"
331 funcs="$funcs stpcpy"
332 funcs="$funcs stpncpy"
333 funcs="$funcs strcasecmp"
334 funcs="$funcs strchr"
335 funcs="$funcs strdup"
336 funcs="$funcs strncasecmp"
337 funcs="$funcs strndup"
338 funcs="$funcs strrchr"
339 funcs="$funcs strstr"
340 funcs="$funcs strtod"
341 funcs="$funcs strtol"
342 funcs="$funcs strtoul"
343 funcs="$funcs strverscmp"
344 funcs="$funcs tmpnam"
345 funcs="$funcs vasprintf"
346 funcs="$funcs vfprintf"
347 funcs="$funcs vprintf"
348 funcs="$funcs vsnprintf"
349 funcs="$funcs vsprintf"
350 funcs="$funcs waitpid"
352 # Also in the old function.def file: alloca, vfork, getopt.
354 vars="sys_errlist sys_nerr sys_siglist"
356 checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
357 checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
358 checkfuncs="$checkfuncs getsysinfo table sysctl wait3 wait4 __fsetlocking"
360 # These are neither executed nor required, but they help keep
361 # autoheader happy without adding a bunch of text to acconfig.h.
362 if test "x" = "y"; then
363 AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
364 getcwd getpagesize gettimeofday index insque mkstemps memchr memcmp memcpy \
365 memmove mempcpy memset putenv random rename rindex sigsetmask \
366 strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strndup strrchr strstr \
367 strtod strtol strtoul strverscmp tmpnam vasprintf vfprintf vprintf \
368 vsprintf waitpid getrusage on_exit psignal strerror strsignal \
369 sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
370 pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl wait3 wait4 \
371 realpath canonicalize_file_name __fsetlocking)
372 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
373 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
374 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
375 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
378 # For each of these functions, if the host does not provide the
379 # function we want to put FN.o in LIBOBJS, and if the host does
380 # provide the function, we want to define HAVE_FN in config.h.
385 if test -n "${with_target_subdir}"; then
387 # We are being configured as a target library. AC_REPLACE_FUNCS
388 # may not work correctly, because the compiler may not be able to
389 # link executables. Note that we may still be being configured
392 # If we are being configured for newlib, we know which functions
393 # newlib provide and which ones we will be expected to provide.
395 if test "x${with_newlib}" = "xyes"; then
396 AC_LIBOBJ([asprintf])
397 AC_LIBOBJ([basename])
401 AC_LIBOBJ([vasprintf])
405 asprintf | basename | insque | random | strdup | vasprintf)
408 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
409 AC_DEFINE_UNQUOTED($n)
414 # newlib doesnt provide any of the variables in $vars, so we
415 # dont have to check them here.
417 # Of the functions in $checkfuncs, newlib only has strerror.
418 AC_DEFINE(HAVE_STRERROR)
424 # If we are being configured for Mingw, we know which functions
425 # Mingw provides and which ones we will be expected to provide.
429 AC_LIBOBJ([asprintf])
430 AC_LIBOBJ([basename])
436 AC_LIBOBJ([getpagesize])
440 AC_LIBOBJ([mkstemps])
443 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 | 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 $checkfuncs, Mingw only has strerror.
466 AC_DEFINE(HAVE_STRERROR)
473 # We may wish to install the target headers somewhere.
474 AC_ARG_ENABLE(install-libiberty,
475 [ --enable-install-libiberty Install headers for end users],
476 enable_install_libiberty=$enableval,
477 enable_install_libiberty=no)dnl
479 # Option parsed, now set things appropriately.
480 case x"$enable_install_libiberty" in
482 target_header_dir=libiberty
488 # This could be sanity-checked in various ways...
489 target_header_dir="${enable_install_libiberty}"
496 # Not a target library, so we set things up to run the test suite.
502 AC_SUBST(target_header_dir)
505 *-*-cygwin* | *-*-mingw*)
506 AC_DEFINE(HAVE_SYS_ERRLIST)
507 AC_DEFINE(HAVE_SYS_NERR)
511 if test -z "${setobjs}"; then
515 # Handle VxWorks configuration specially, since on VxWorks the
516 # libraries are actually on the target board, not in the file
518 AC_LIBOBJ([basename])
519 AC_LIBOBJ([getpagesize])
522 AC_LIBOBJ([strcasecmp])
523 AC_LIBOBJ([strncasecmp])
527 AC_LIBOBJ([vasprintf])
530 basename | getpagesize | insque | random | strcasecmp)
532 strncasecmp | strdup | vfork | waitpid | vasprintf)
535 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
536 AC_DEFINE_UNQUOTED($n)
541 # VxWorks doesn't provide any of the variables in $vars, so we
542 # don't have to check them here.
544 # Of the functions in $checkfuncs, VxWorks only has strerror.
545 AC_DEFINE(HAVE_STRERROR)
551 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
552 getcwd getpagesize getrusage gettimeofday \
553 index insque memchr memcmp memcpy memmove memset psignal \
554 putenv random rename rindex sbrk setenv stpcpy strcasecmp \
555 strchr strdup strerror strncasecmp strrchr strstr strtod \
556 strtol strtoul sysconf times tmpnam vfprintf vprintf \
559 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
560 AC_DEFINE_UNQUOTED($n)
570 if test -z "${setobjs}"; then
575 # The Cygwin library actually uses a couple of files from
576 # libiberty when it is built. If we are building a native
577 # Cygwin, and we run the tests, we will appear to have these
578 # files. However, when we go on to build winsup, we will wind up
579 # with a library which does not have the files, since they should
580 # have come from libiberty.
582 # We handle this by removing the functions the winsup library
583 # provides from our shell variables, so that they appear to be
586 # DJ - only if we're *building* cygwin, not just building *with* cygwin
588 if test -n "${with_target_subdir}"
590 funcs="`echo $funcs | sed -e 's/random//'`"
592 vars="`echo $vars | sed -e 's/sys_siglist//'`"
593 checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
598 # Under mingw32, sys_nerr and sys_errlist exist, but they are
599 # macros, so the test below won't find them.
600 libiberty_cv_var_sys_nerr=yes
601 libiberty_cv_var_sys_errlist=yes
605 # vfork and fork are stubs.
606 ac_cv_func_vfork_works=no
610 # Under some versions of uwin, vfork is notoriously buggy and the test
611 # can hang configure; on other versions, vfork exists just as a stub.
612 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
613 ac_cv_func_vfork_works=no
614 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
615 # macros (actually, these are imported from a DLL, but the end effect
616 # is the same), so the test below won't find them.
617 libiberty_cv_var_sys_nerr=yes
618 libiberty_cv_var_sys_errlist=yes
622 # Under VMS, vfork works very different than on Unix. The standard test
623 # won't work, and it isn't easily adaptable. It makes more sense to
625 ac_cv_func_vfork_works=yes
630 # We haven't set the list of objects yet. Use the standard autoconf
631 # tests. This will only work if the compiler works.
633 AC_REPLACE_FUNCS($funcs)
634 libiberty_AC_FUNC_C_ALLOCA
636 if test $ac_cv_func_vfork_works = no; then
639 # We only need _doprnt if we might use it to implement v*printf.
640 if test $ac_cv_func_vprintf != yes \
641 || test $ac_cv_func_vfprintf != yes \
642 || test $ac_cv_func_vsprintf != yes; then
643 AC_REPLACE_FUNCS(_doprnt)
645 AC_CHECK_FUNCS(_doprnt)
649 AC_MSG_CHECKING([for $v])
650 AC_CACHE_VAL(libiberty_cv_var_$v,
651 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
652 [eval "libiberty_cv_var_$v=yes"],
653 [eval "libiberty_cv_var_$v=no"])])
654 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
656 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
657 AC_DEFINE_UNQUOTED($n)
663 # special check for _system_configuration because AIX <4.3.2 do not
664 # contain the `physmem' member.
665 AC_MSG_CHECKING([for external symbol _system_configuration])
666 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
667 [[double x = _system_configuration.physmem;]])],
668 [AC_MSG_RESULT([yes])
669 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
670 [Define if you have the _system_configuration variable.])],
671 [AC_MSG_RESULT([no])])
673 AC_CHECK_FUNCS($checkfuncs)
674 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
675 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
676 AC_CHECK_DECLS([strverscmp])
677 libiberty_NEED_DECLARATION(canonicalize_file_name)
680 # Figure out which version of pexecute to use.
682 *-*-mingw* | *-*-winnt*) pexecute=./pex-win32.o ;;
683 *-*-msdosdjgpp*) pexecute=./pex-djgpp.o ;;
684 *-*-msdos*) pexecute=./pex-msdos.o ;;
685 *) pexecute=./pex-unix.o ;;
689 libiberty_AC_FUNC_STRNCMP
691 # Install a library built with a cross compiler in $(tooldir) rather
693 if test -z "${with_cross_host}"; then
698 AC_SUBST(INSTALL_DEST)
700 m4_pattern_allow(LIBOBJS)
702 for l in x $LIBOBJS; do
710 dnl Required by html and install-html
711 AC_SUBST(datarootdir)
715 # We need multilib support, but only if configuring for the target.
716 AC_CONFIG_FILES([Makefile testsuite/Makefile])
717 AC_CONFIG_COMMANDS([default],
718 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
719 if test -n "$CONFIG_FILES"; then
720 if test -n "${with_target_subdir}"; then
721 # FIXME: We shouldn't need to set ac_file
723 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
724 . ${libiberty_topdir}/config-ml.in
730 with_target_subdir=${with_target_subdir}
731 with_multisubdir=${with_multisubdir}
732 ac_configure_args="--enable-multilib ${ac_configure_args}"
733 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
734 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
735 libiberty_topdir=${libiberty_topdir}