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, :)
116 # Warn C++ incompatibilities if supported.
118 [whether ${CC} accepts -Wc++-compat],
119 [ac_cv_prog_cc_w_cxx_compat],
120 [save_CFLAGS="$CFLAGS"
121 CFLAGS="-Wc++-compat"
122 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
123 [ac_cv_prog_cc_w_cxx_compat=yes],
124 [ac_cv_prog_cc_w_cxx_compat=no])
125 CFLAGS="$save_CFLAGS"
129 if test x$GCC = xyes; then
130 ac_libiberty_warn_cflags='-W -Wall -pedantic -Wwrite-strings -Wstrict-prototypes'
132 if test $ac_cv_prog_cc_w_cxx_compat = yes ; then
133 ac_libiberty_warn_cflags="${ac_libiberty_warn_cflags} -Wc++-compat"
135 AC_SUBST(ac_libiberty_warn_cflags)
138 # autoconf is lame and doesn't give us any substitution variable for this.
139 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
140 NO_MINUS_C_MINUS_O=yes
142 OUTPUT_OPTION='-o $@'
144 AC_SUBST(NO_MINUS_C_MINUS_O)
145 AC_SUBST(OUTPUT_OPTION)
151 dnl When we start using libtool:
152 dnl Default to a non shared library. This may be overridden by the
153 dnl configure option --enable-shared.
154 dnl AM_DISABLE_SHARED
156 dnl When we start using libtool:
159 dnl When we start using automake:
160 dnl AM_CONFIG_HEADER(config.h:config.in)
161 AC_CONFIG_HEADER(config.h:config.in)
163 dnl When we start using automake:
164 dnl AM_MAINTAINER_MODE
167 dnl When we start using automake:
171 # Don't build the shared library for build.
172 if [[ -n "${with_build_subdir}" ]]; then
178 rs6000-ibm-aix3.1 | rs6000-ibm-aix)
180 *-*-cxux7*) frag=mh-cxux7 ;;
181 *-*-freebsd2.1.*) frag=mh-fbsd21 ;;
182 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;;
183 i370-*-opened*) frag=mh-openedition ;;
184 i[[34567]]86-*-windows*) frag=mh-windows ;;
187 if [[ -n "${frag}" ]]; then
188 frags=${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 [[ "${shared}" = "yes" ]]; then
204 alpha*-*-linux*) frag=mh-elfalphapic ;;
205 arm*-*-*) frag=mh-armpic ;;
206 hppa*-*-*) frag=mh-papic ;;
207 i[[34567]]86-*-* | x86_64-*-*)
210 powerpc*-*-*) frag=mh-ppcpic ;;
211 sparc*-*-*) frag=mh-sparcpic ;;
212 s390*-*-*) frag=mh-s390pic ;;
213 *) frag=mh-${host_cpu}pic ;;
215 if [[ -n "${frag}" ]]; then
216 frags="${frags} ${libiberty_topdir}/config/${frag}"
220 echo "# Warning: this fragment is automatically generated" > temp-frag
222 for frag in ${frags}; do
223 if [[ -f ${frag} ]]; then
224 echo "Appending ${frag} to xhost-mkfrag"
225 echo "# Following fragment copied from ${frag}" >> temp-frag
226 cat ${frag} >> temp-frag
230 # record if we want to build shared libs.
231 if [[ "${shared}" = "yes" ]]; then
232 echo enable_shared = yes >> temp-frag
234 echo enable_shared = no >> temp-frag
238 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
240 host_makefile_frag=${frag}
241 AC_SUBST_FILE(host_makefile_frag)
243 # It's OK to check for header files. Although the compiler may not be
244 # able to link anything, it had better be able to at least compile
246 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)
250 libiberty_AC_DECLARE_ERRNO
252 # Determine the size of an int for struct fibnode.
253 AC_CHECK_SIZEOF([int])
255 AC_CHECK_TYPE(uintptr_t, unsigned long)
257 # Look for a 64-bit type.
258 AC_MSG_CHECKING([for a 64-bit type])
259 AC_CACHE_VAL(liberty_cv_uint64,
261 [#ifdef HAVE_STDINT_H
264 [extern uint64_t foo;],
265 liberty_cv_uint64=uint64_t,
267 [#ifdef HAVE_LIMITS_H
273 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
274 liberty_cv_uint64="unsigned long",
276 [#ifdef HAVE_LIMITS_H
282 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
283 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
284 AC_MSG_RESULT($liberty_cv_uint64)
285 if test "$liberty_cv_uint64" != none; then
286 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
287 [Define to an unsigned 64-bit type available in the compiler.])
290 # Given the above check, we always have uintptr_t or a fallback
291 # definition. So define HAVE_UINTPTR_T in case any imported code
293 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
297 # This is the list of functions which libiberty will provide if they
298 # are not available on the host.
301 funcs="$funcs atexit"
302 funcs="$funcs basename"
305 funcs="$funcs bsearch"
307 funcs="$funcs calloc"
310 funcs="$funcs getcwd"
311 funcs="$funcs getpagesize"
312 funcs="$funcs gettimeofday"
314 funcs="$funcs insque"
315 funcs="$funcs memchr"
316 funcs="$funcs memcmp"
317 funcs="$funcs memcpy"
318 funcs="$funcs memmove"
319 funcs="$funcs mempcpy"
320 funcs="$funcs memset"
321 funcs="$funcs mkstemps"
322 funcs="$funcs putenv"
323 funcs="$funcs random"
324 funcs="$funcs rename"
325 funcs="$funcs rindex"
326 funcs="$funcs setenv"
327 funcs="$funcs snprintf"
328 funcs="$funcs sigsetmask"
329 funcs="$funcs stpcpy"
330 funcs="$funcs stpncpy"
331 funcs="$funcs strcasecmp"
332 funcs="$funcs strchr"
333 funcs="$funcs strdup"
334 funcs="$funcs strncasecmp"
335 funcs="$funcs strndup"
336 funcs="$funcs strrchr"
337 funcs="$funcs strstr"
338 funcs="$funcs strtod"
339 funcs="$funcs strtol"
340 funcs="$funcs strtoul"
341 funcs="$funcs strverscmp"
342 funcs="$funcs tmpnam"
343 funcs="$funcs vasprintf"
344 funcs="$funcs vfprintf"
345 funcs="$funcs vprintf"
346 funcs="$funcs vsnprintf"
347 funcs="$funcs vsprintf"
348 funcs="$funcs waitpid"
350 # Also in the old function.def file: alloca, vfork, getopt.
352 vars="sys_errlist sys_nerr sys_siglist"
354 checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
355 checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
356 checkfuncs="$checkfuncs getsysinfo table sysctl wait3 wait4 __fsetlocking"
358 # These are neither executed nor required, but they help keep
359 # autoheader happy without adding a bunch of text to acconfig.h.
360 if test "x" = "y"; then
361 AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
362 getcwd getpagesize gettimeofday index insque mkstemps memchr memcmp memcpy \
363 memmove mempcpy memset putenv random rename rindex sigsetmask \
364 strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strndup strrchr strstr \
365 strtod strtol strtoul strverscmp tmpnam vasprintf vfprintf vprintf \
366 vsprintf waitpid getrusage on_exit psignal strerror strsignal \
367 sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
368 pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl wait3 wait4 \
369 realpath canonicalize_file_name __fsetlocking)
370 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
371 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
372 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
373 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
376 # For each of these functions, if the host does not provide the
377 # function we want to put FN.o in LIBOBJS, and if the host does
378 # provide the function, we want to define HAVE_FN in config.h.
383 if test -n "${with_target_subdir}"; then
385 # We are being configured as a target library. AC_REPLACE_FUNCS
386 # may not work correctly, because the compiler may not be able to
387 # link executables. Note that we may still be being configured
390 # If we are being configured for newlib, we know which functions
391 # newlib provide and which ones we will be expected to provide.
393 if test "x${with_newlib}" = "xyes"; then
394 AC_LIBOBJ([asprintf])
395 AC_LIBOBJ([basename])
399 AC_LIBOBJ([vasprintf])
403 asprintf | basename | insque | random | strdup | vasprintf)
406 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
407 AC_DEFINE_UNQUOTED($n)
412 # newlib doesnt provide any of the variables in $vars, so we
413 # dont have to check them here.
415 # Of the functions in $checkfuncs, newlib only has strerror.
416 AC_DEFINE(HAVE_STRERROR)
422 # We may wish to install the target headers somewhere.
423 AC_ARG_ENABLE(install-libiberty,
424 [ --enable-install-libiberty Install headers for end users],
425 enable_install_libiberty=$enableval,
426 enable_install_libiberty=no)dnl
428 # Option parsed, now set things appropriately.
429 case x"$enable_install_libiberty" in
431 target_header_dir=libiberty
437 # This could be sanity-checked in various ways...
438 target_header_dir="${enable_install_libiberty}"
445 # Not a target library, so we set things up to run the test suite.
451 AC_SUBST(target_header_dir)
454 *-*-cygwin* | *-*-mingw*)
455 AC_DEFINE(HAVE_SYS_ERRLIST)
456 AC_DEFINE(HAVE_SYS_NERR)
460 if test -z "${setobjs}"; then
464 # Handle VxWorks configuration specially, since on VxWorks the
465 # libraries are actually on the target board, not in the file
467 AC_LIBOBJ([basename])
468 AC_LIBOBJ([getpagesize])
471 AC_LIBOBJ([strcasecmp])
472 AC_LIBOBJ([strncasecmp])
476 AC_LIBOBJ([vasprintf])
479 basename | getpagesize | insque | random | strcasecmp)
481 strncasecmp | strdup | vfork | waitpid | vasprintf)
484 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
485 AC_DEFINE_UNQUOTED($n)
490 # VxWorks doesn't provide any of the variables in $vars, so we
491 # don't have to check them here.
493 # Of the functions in $checkfuncs, VxWorks only has strerror.
494 AC_DEFINE(HAVE_STRERROR)
502 if test -z "${setobjs}"; then
507 # The Cygwin library actually uses a couple of files from
508 # libiberty when it is built. If we are building a native
509 # Cygwin, and we run the tests, we will appear to have these
510 # files. However, when we go on to build winsup, we will wind up
511 # with a library which does not have the files, since they should
512 # have come from libiberty.
514 # We handle this by removing the functions the winsup library
515 # provides from our shell variables, so that they appear to be
518 # DJ - only if we're *building* cygwin, not just building *with* cygwin
520 if test -n "${with_target_subdir}"
522 funcs="`echo $funcs | sed -e 's/random//'`"
524 vars="`echo $vars | sed -e 's/sys_siglist//'`"
525 checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
530 # Under mingw32, sys_nerr and sys_errlist exist, but they are
531 # macros, so the test below won't find them.
532 libiberty_cv_var_sys_nerr=yes
533 libiberty_cv_var_sys_errlist=yes
537 # vfork and fork are stubs.
538 ac_cv_func_vfork_works=no
542 # Under some versions of uwin, vfork is notoriously buggy and the test
543 # can hang configure; on other versions, vfork exists just as a stub.
544 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
545 ac_cv_func_vfork_works=no
546 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
547 # macros (actually, these are imported from a DLL, but the end effect
548 # is the same), so the test below won't find them.
549 libiberty_cv_var_sys_nerr=yes
550 libiberty_cv_var_sys_errlist=yes
554 # Under VMS, vfork works very different than on Unix. The standard test
555 # won't work, and it isn't easily adaptable. It makes more sense to
557 ac_cv_func_vfork_works=yes
562 # We haven't set the list of objects yet. Use the standard autoconf
563 # tests. This will only work if the compiler works.
565 AC_REPLACE_FUNCS($funcs)
566 libiberty_AC_FUNC_C_ALLOCA
568 if test $ac_cv_func_vfork_works = no; then
571 # We only need _doprnt if we might use it to implement v*printf.
572 if test $ac_cv_func_vprintf != yes \
573 || test $ac_cv_func_vfprintf != yes \
574 || test $ac_cv_func_vsprintf != yes; then
575 AC_REPLACE_FUNCS(_doprnt)
577 AC_CHECK_FUNCS(_doprnt)
581 AC_MSG_CHECKING([for $v])
582 AC_CACHE_VAL(libiberty_cv_var_$v,
583 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
584 [eval "libiberty_cv_var_$v=yes"],
585 [eval "libiberty_cv_var_$v=no"])])
586 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
588 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
589 AC_DEFINE_UNQUOTED($n)
595 # special check for _system_configuration because AIX <4.3.2 do not
596 # contain the `physmem' member.
597 AC_MSG_CHECKING([for external symbol _system_configuration])
598 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
599 [[double x = _system_configuration.physmem;]])],
600 [AC_MSG_RESULT([yes])
601 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
602 [Define if you have the _system_configuration variable.])],
603 [AC_MSG_RESULT([no])])
605 AC_CHECK_FUNCS($checkfuncs)
606 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
607 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
608 AC_CHECK_DECLS([strverscmp])
609 libiberty_NEED_DECLARATION(canonicalize_file_name)
612 # Figure out which version of pexecute to use.
614 *-*-mingw* | *-*-winnt*) pexecute=./pex-win32.o ;;
615 *-*-msdosdjgpp*) pexecute=./pex-djgpp.o ;;
616 *-*-msdos*) pexecute=./pex-msdos.o ;;
617 *) pexecute=./pex-unix.o ;;
621 libiberty_AC_FUNC_STRNCMP
623 # Install a library built with a cross compiler in $(tooldir) rather
625 if test -z "${with_cross_host}"; then
630 AC_SUBST(INSTALL_DEST)
632 m4_pattern_allow(LIBOBJS)
634 for l in x $LIBOBJS; do
642 # We need multilib support, but only if configuring for the target.
643 AC_CONFIG_FILES([Makefile testsuite/Makefile])
644 AC_CONFIG_COMMANDS([default],
645 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
646 if test -n "$CONFIG_FILES"; then
647 if test -n "${with_target_subdir}"; then
648 # FIXME: We shouldn't need to set ac_file
650 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
651 . ${libiberty_topdir}/config-ml.in
657 with_target_subdir=${with_target_subdir}
658 with_multisubdir=${with_multisubdir}
659 ac_configure_args="--enable-multilib ${ac_configure_args}"
660 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
661 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
662 libiberty_topdir=${libiberty_topdir}