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 # Warn C++ incompatibilities if supported.
137 [whether ${CC} accepts -Wc++-compat],
138 [ac_cv_prog_cc_w_cxx_compat],
139 [save_CFLAGS="$CFLAGS"
140 CFLAGS="-Wc++-compat"
141 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
142 [ac_cv_prog_cc_w_cxx_compat=yes],
143 [ac_cv_prog_cc_w_cxx_compat=no])
144 CFLAGS="$save_CFLAGS"
148 if test x$GCC = xyes; then
149 ac_libiberty_warn_cflags='-W -Wall -pedantic -Wwrite-strings -Wstrict-prototypes'
151 if test $ac_cv_prog_cc_w_cxx_compat = yes ; then
152 ac_libiberty_warn_cflags="${ac_libiberty_warn_cflags} -Wc++-compat"
154 AC_SUBST(ac_libiberty_warn_cflags)
157 # autoconf is lame and doesn't give us any substitution variable for this.
158 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
159 NO_MINUS_C_MINUS_O=yes
161 OUTPUT_OPTION='-o $@'
163 AC_SUBST(NO_MINUS_C_MINUS_O)
164 AC_SUBST(OUTPUT_OPTION)
170 dnl When we start using libtool:
171 dnl Default to a non shared library. This may be overridden by the
172 dnl configure option --enable-shared.
173 dnl AM_DISABLE_SHARED
175 dnl When we start using libtool:
178 dnl When we start using automake:
179 dnl AM_CONFIG_HEADER(config.h:config.in)
180 AC_CONFIG_HEADER(config.h:config.in)
182 dnl When we start using automake:
183 dnl AM_MAINTAINER_MODE
186 dnl When we start using automake:
190 # Don't build the shared library for build.
191 if [[ -n "${with_build_subdir}" ]]; then
197 rs6000-ibm-aix3.1 | rs6000-ibm-aix)
199 *-*-cxux7*) frag=mh-cxux7 ;;
200 *-*-freebsd2.1.*) frag=mh-fbsd21 ;;
201 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;;
202 i370-*-opened*) frag=mh-openedition ;;
203 i[[34567]]86-*-windows*) frag=mh-windows ;;
206 if [[ -n "${frag}" ]]; then
207 frags=${libiberty_topdir}/libiberty/config/$frag
212 # If they didn't specify --enable-shared, don't generate shared libs.
213 case "${enable_shared}" in
219 if [[ "${shared}" = "yes" ]]; then
223 alpha*-*-linux*) frag=mh-elfalphapic ;;
224 arm*-*-*) frag=mh-armpic ;;
225 hppa*-*-*) frag=mh-papic ;;
226 i[[34567]]86-*-* | x86_64-*-*)
229 powerpc*-*-*) frag=mh-ppcpic ;;
230 sparc*-*-*) frag=mh-sparcpic ;;
231 s390*-*-*) frag=mh-s390pic ;;
232 *) frag=mh-${host_cpu}pic ;;
234 if [[ -n "${frag}" ]]; then
235 frags="${frags} ${libiberty_topdir}/config/${frag}"
239 echo "# Warning: this fragment is automatically generated" > temp-frag
241 for frag in ${frags}; do
242 if [[ -f ${frag} ]]; then
243 echo "Appending ${frag} to xhost-mkfrag"
244 echo "# Following fragment copied from ${frag}" >> temp-frag
245 cat ${frag} >> temp-frag
249 # record if we want to build shared libs.
250 if [[ "${shared}" = "yes" ]]; then
251 echo enable_shared = yes >> temp-frag
253 echo enable_shared = no >> temp-frag
257 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
259 host_makefile_frag=${frag}
260 AC_SUBST_FILE(host_makefile_frag)
262 # It's OK to check for header files. Although the compiler may not be
263 # able to link anything, it had better be able to at least compile
265 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)
269 libiberty_AC_DECLARE_ERRNO
271 # Determine the size of an int for struct fibnode.
272 AC_CHECK_SIZEOF([int])
274 AC_CHECK_TYPE(uintptr_t, unsigned long)
276 # Look for a 64-bit type.
277 AC_MSG_CHECKING([for a 64-bit type])
278 AC_CACHE_VAL(liberty_cv_uint64,
280 [#ifdef HAVE_STDINT_H
283 [extern uint64_t foo;],
284 liberty_cv_uint64=uint64_t,
286 [#ifdef HAVE_LIMITS_H
292 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
293 liberty_cv_uint64="unsigned long",
295 [#ifdef HAVE_LIMITS_H
301 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
302 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
303 AC_MSG_RESULT($liberty_cv_uint64)
304 if test "$liberty_cv_uint64" != none; then
305 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
306 [Define to an unsigned 64-bit type available in the compiler.])
309 # Given the above check, we always have uintptr_t or a fallback
310 # definition. So define HAVE_UINTPTR_T in case any imported code
312 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
316 # This is the list of functions which libiberty will provide if they
317 # are not available on the host.
320 funcs="$funcs atexit"
321 funcs="$funcs basename"
324 funcs="$funcs bsearch"
326 funcs="$funcs calloc"
329 funcs="$funcs getcwd"
330 funcs="$funcs getpagesize"
331 funcs="$funcs gettimeofday"
333 funcs="$funcs insque"
334 funcs="$funcs memchr"
335 funcs="$funcs memcmp"
336 funcs="$funcs memcpy"
337 funcs="$funcs memmove"
338 funcs="$funcs mempcpy"
339 funcs="$funcs memset"
340 funcs="$funcs mkstemps"
341 funcs="$funcs putenv"
342 funcs="$funcs random"
343 funcs="$funcs rename"
344 funcs="$funcs rindex"
345 funcs="$funcs setenv"
346 funcs="$funcs snprintf"
347 funcs="$funcs sigsetmask"
348 funcs="$funcs stpcpy"
349 funcs="$funcs stpncpy"
350 funcs="$funcs strcasecmp"
351 funcs="$funcs strchr"
352 funcs="$funcs strdup"
353 funcs="$funcs strncasecmp"
354 funcs="$funcs strndup"
355 funcs="$funcs strrchr"
356 funcs="$funcs strstr"
357 funcs="$funcs strtod"
358 funcs="$funcs strtol"
359 funcs="$funcs strtoul"
360 funcs="$funcs strverscmp"
361 funcs="$funcs tmpnam"
362 funcs="$funcs vasprintf"
363 funcs="$funcs vfprintf"
364 funcs="$funcs vprintf"
365 funcs="$funcs vsnprintf"
366 funcs="$funcs vsprintf"
367 funcs="$funcs waitpid"
369 # Also in the old function.def file: alloca, vfork, getopt.
371 vars="sys_errlist sys_nerr sys_siglist"
373 checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
374 checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
375 checkfuncs="$checkfuncs getsysinfo table sysctl wait3 wait4 __fsetlocking"
377 # These are neither executed nor required, but they help keep
378 # autoheader happy without adding a bunch of text to acconfig.h.
379 if test "x" = "y"; then
380 AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
381 getcwd getpagesize gettimeofday index insque mkstemps memchr memcmp memcpy \
382 memmove mempcpy memset putenv random rename rindex sigsetmask \
383 strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strndup strrchr strstr \
384 strtod strtol strtoul strverscmp tmpnam vasprintf vfprintf vprintf \
385 vsprintf waitpid getrusage on_exit psignal strerror strsignal \
386 sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
387 pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl wait3 wait4 \
388 realpath canonicalize_file_name __fsetlocking)
389 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
390 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
391 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
392 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
395 # For each of these functions, if the host does not provide the
396 # function we want to put FN.o in LIBOBJS, and if the host does
397 # provide the function, we want to define HAVE_FN in config.h.
402 if test -n "${with_target_subdir}"; then
404 # We are being configured as a target library. AC_REPLACE_FUNCS
405 # may not work correctly, because the compiler may not be able to
406 # link executables. Note that we may still be being configured
409 # If we are being configured for newlib, we know which functions
410 # newlib provide and which ones we will be expected to provide.
412 if test "x${with_newlib}" = "xyes"; then
413 AC_LIBOBJ([asprintf])
414 AC_LIBOBJ([basename])
418 AC_LIBOBJ([vasprintf])
422 asprintf | basename | insque | random | strdup | vasprintf)
425 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
426 AC_DEFINE_UNQUOTED($n)
431 # newlib doesnt provide any of the variables in $vars, so we
432 # dont have to check them here.
434 # Of the functions in $checkfuncs, newlib only has strerror.
435 AC_DEFINE(HAVE_STRERROR)
441 # If we are being configured for Mingw, we know which functions
442 # Mingw provides and which ones we will be expected to provide.
446 AC_LIBOBJ([asprintf])
447 AC_LIBOBJ([basename])
453 AC_LIBOBJ([getpagesize])
457 AC_LIBOBJ([mkstemps])
460 AC_LIBOBJ([sigsetmask])
464 AC_LIBOBJ([strverscmp])
465 AC_LIBOBJ([vasprintf])
470 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strverscmp | vasprintf | waitpid)
473 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
474 AC_DEFINE_UNQUOTED($n)
479 # Mingw doesnt provide any of the variables in $vars, so we
480 # dont have to check them here.
482 # Of the functions in $checkfuncs, Mingw only has strerror.
483 AC_DEFINE(HAVE_STRERROR)
490 # We may wish to install the target headers somewhere.
491 AC_ARG_ENABLE(install-libiberty,
492 [ --enable-install-libiberty Install headers for end users],
493 enable_install_libiberty=$enableval,
494 enable_install_libiberty=no)dnl
496 # Option parsed, now set things appropriately.
497 case x"$enable_install_libiberty" in
499 target_header_dir=libiberty
505 # This could be sanity-checked in various ways...
506 target_header_dir="${enable_install_libiberty}"
513 # Not a target library, so we set things up to run the test suite.
519 AC_SUBST(target_header_dir)
522 *-*-cygwin* | *-*-mingw*)
523 AC_DEFINE(HAVE_SYS_ERRLIST)
524 AC_DEFINE(HAVE_SYS_NERR)
528 if test -z "${setobjs}"; then
532 # Handle VxWorks configuration specially, since on VxWorks the
533 # libraries are actually on the target board, not in the file
535 AC_LIBOBJ([basename])
536 AC_LIBOBJ([getpagesize])
539 AC_LIBOBJ([strcasecmp])
540 AC_LIBOBJ([strncasecmp])
544 AC_LIBOBJ([vasprintf])
547 basename | getpagesize | insque | random | strcasecmp)
549 strncasecmp | strdup | vfork | waitpid | vasprintf)
552 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
553 AC_DEFINE_UNQUOTED($n)
558 # VxWorks doesn't provide any of the variables in $vars, so we
559 # don't have to check them here.
561 # Of the functions in $checkfuncs, VxWorks only has strerror.
562 AC_DEFINE(HAVE_STRERROR)
568 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
569 getcwd getpagesize getrusage gettimeofday gettimeofday \
570 index insque memchr memcmp memcpy memmove memset psignal \
571 putenv random rename rindex sbrk setenv stpcpy strcasecmp \
572 strchr strdup strerror strncasecmp strrchr strstr strtod \
573 strtol strtoul sysconf times tmpnam vfprintf vprintf \
576 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
577 AC_DEFINE_UNQUOTED($n)
587 if test -z "${setobjs}"; then
592 # The Cygwin library actually uses a couple of files from
593 # libiberty when it is built. If we are building a native
594 # Cygwin, and we run the tests, we will appear to have these
595 # files. However, when we go on to build winsup, we will wind up
596 # with a library which does not have the files, since they should
597 # have come from libiberty.
599 # We handle this by removing the functions the winsup library
600 # provides from our shell variables, so that they appear to be
603 # DJ - only if we're *building* cygwin, not just building *with* cygwin
605 if test -n "${with_target_subdir}"
607 funcs="`echo $funcs | sed -e 's/random//'`"
609 vars="`echo $vars | sed -e 's/sys_siglist//'`"
610 checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
615 # Under mingw32, sys_nerr and sys_errlist exist, but they are
616 # macros, so the test below won't find them.
617 libiberty_cv_var_sys_nerr=yes
618 libiberty_cv_var_sys_errlist=yes
622 # vfork and fork are stubs.
623 ac_cv_func_vfork_works=no
627 # Under some versions of uwin, vfork is notoriously buggy and the test
628 # can hang configure; on other versions, vfork exists just as a stub.
629 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
630 ac_cv_func_vfork_works=no
631 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
632 # macros (actually, these are imported from a DLL, but the end effect
633 # is the same), so the test below won't find them.
634 libiberty_cv_var_sys_nerr=yes
635 libiberty_cv_var_sys_errlist=yes
639 # Under VMS, vfork works very different than on Unix. The standard test
640 # won't work, and it isn't easily adaptable. It makes more sense to
642 ac_cv_func_vfork_works=yes
647 # We haven't set the list of objects yet. Use the standard autoconf
648 # tests. This will only work if the compiler works.
650 AC_REPLACE_FUNCS($funcs)
651 libiberty_AC_FUNC_C_ALLOCA
653 if test $ac_cv_func_vfork_works = no; then
656 # We only need _doprnt if we might use it to implement v*printf.
657 if test $ac_cv_func_vprintf != yes \
658 || test $ac_cv_func_vfprintf != yes \
659 || test $ac_cv_func_vsprintf != yes; then
660 AC_REPLACE_FUNCS(_doprnt)
662 AC_CHECK_FUNCS(_doprnt)
666 AC_MSG_CHECKING([for $v])
667 AC_CACHE_VAL(libiberty_cv_var_$v,
668 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
669 [eval "libiberty_cv_var_$v=yes"],
670 [eval "libiberty_cv_var_$v=no"])])
671 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
673 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
674 AC_DEFINE_UNQUOTED($n)
680 # special check for _system_configuration because AIX <4.3.2 do not
681 # contain the `physmem' member.
682 AC_MSG_CHECKING([for external symbol _system_configuration])
683 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
684 [[double x = _system_configuration.physmem;]])],
685 [AC_MSG_RESULT([yes])
686 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
687 [Define if you have the _system_configuration variable.])],
688 [AC_MSG_RESULT([no])])
690 AC_CHECK_FUNCS($checkfuncs)
691 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
692 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
693 AC_CHECK_DECLS([strverscmp])
694 libiberty_NEED_DECLARATION(canonicalize_file_name)
697 # Figure out which version of pexecute to use.
699 *-*-mingw* | *-*-winnt*) pexecute=./pex-win32.o ;;
700 *-*-msdosdjgpp*) pexecute=./pex-djgpp.o ;;
701 *-*-msdos*) pexecute=./pex-msdos.o ;;
702 *) pexecute=./pex-unix.o ;;
706 libiberty_AC_FUNC_STRNCMP
708 # Install a library built with a cross compiler in $(tooldir) rather
710 if test -z "${with_cross_host}"; then
715 AC_SUBST(INSTALL_DEST)
717 m4_pattern_allow(LIBOBJS)
719 for l in x $LIBOBJS; do
727 dnl Required by html and install-html
728 AC_SUBST(datarootdir)
732 # We need multilib support, but only if configuring for the target.
733 AC_CONFIG_FILES([Makefile testsuite/Makefile])
734 AC_CONFIG_COMMANDS([default],
735 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
736 if test -n "$CONFIG_FILES"; then
737 if test -n "${with_target_subdir}"; then
738 # FIXME: We shouldn't need to set ac_file
740 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
741 . ${libiberty_topdir}/config-ml.in
747 with_target_subdir=${with_target_subdir}
748 with_multisubdir=${with_multisubdir}
749 ac_configure_args="--enable-multilib ${ac_configure_args}"
750 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
751 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
752 libiberty_topdir=${libiberty_topdir}