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 if test x$GCC = xyes; then
117 ac_libiberty_warn_cflags='-W -Wall -pedantic -Wwrite-strings -Wstrict-prototypes'
119 AC_SUBST(ac_libiberty_warn_cflags)
122 # autoconf is lame and doesn't give us any substitution variable for this.
123 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
124 NO_MINUS_C_MINUS_O=yes
126 OUTPUT_OPTION='-o $@'
128 AC_SUBST(NO_MINUS_C_MINUS_O)
129 AC_SUBST(OUTPUT_OPTION)
135 dnl When we start using libtool:
136 dnl Default to a non shared library. This may be overridden by the
137 dnl configure option --enable-shared.
138 dnl AM_DISABLE_SHARED
140 dnl When we start using libtool:
143 dnl When we start using automake:
144 dnl AM_CONFIG_HEADER(config.h:config.in)
145 AC_CONFIG_HEADER(config.h:config.in)
147 dnl When we start using automake:
148 dnl AM_MAINTAINER_MODE
151 dnl When we start using automake:
155 # Don't build the shared library for build.
156 if [[ -n "${with_build_subdir}" ]]; then
162 rs6000-ibm-aix3.1 | rs6000-ibm-aix)
164 *-*-cxux7*) frag=mh-cxux7 ;;
165 *-*-freebsd2.1.*) frag=mh-fbsd21 ;;
166 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;;
167 i370-*-opened*) frag=mh-openedition ;;
168 i[[34567]]86-*-windows*) frag=mh-windows ;;
171 if [[ -n "${frag}" ]]; then
172 frags=${libiberty_topdir}/libiberty/config/$frag
177 # If they didn't specify --enable-shared, don't generate shared libs.
178 case "${enable_shared}" in
184 if [[ "${shared}" = "yes" ]]; then
188 alpha*-*-linux*) frag=mh-elfalphapic ;;
189 arm*-*-*) frag=mh-armpic ;;
190 hppa*-*-*) frag=mh-papic ;;
191 i[[34567]]86-*-* | x86_64-*-*)
194 powerpc*-*-*) frag=mh-ppcpic ;;
195 sparc*-*-*) frag=mh-sparcpic ;;
196 s390*-*-*) frag=mh-s390pic ;;
197 *) frag=mh-${host_cpu}pic ;;
199 if [[ -n "${frag}" ]]; then
200 frags="${frags} ${libiberty_topdir}/config/${frag}"
204 echo "# Warning: this fragment is automatically generated" > temp-frag
206 for frag in ${frags}; do
207 if [[ -f ${frag} ]]; then
208 echo "Appending ${frag} to xhost-mkfrag"
209 echo "# Following fragment copied from ${frag}" >> temp-frag
210 cat ${frag} >> temp-frag
214 # record if we want to build shared libs.
215 if [[ "${shared}" = "yes" ]]; then
216 echo enable_shared = yes >> temp-frag
218 echo enable_shared = no >> temp-frag
222 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
224 host_makefile_frag=${frag}
225 AC_SUBST_FILE(host_makefile_frag)
227 # It's OK to check for header files. Although the compiler may not be
228 # able to link anything, it had better be able to at least compile
230 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)
234 libiberty_AC_DECLARE_ERRNO
236 # Determine the size of an int for struct fibnode.
237 AC_CHECK_SIZEOF([int])
239 AC_CHECK_TYPE(uintptr_t, unsigned long)
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, $liberty_cv_uint64,
271 [Define to an unsigned 64-bit type available in the compiler.])
274 # Given the above check, we always have uintptr_t or a fallback
275 # definition. So define HAVE_UINTPTR_T in case any imported code
277 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
281 # This is the list of functions which libiberty will provide if they
282 # are not available on the host.
285 funcs="$funcs atexit"
286 funcs="$funcs basename"
289 funcs="$funcs bsearch"
291 funcs="$funcs calloc"
294 funcs="$funcs getcwd"
295 funcs="$funcs getpagesize"
296 funcs="$funcs gettimeofday"
298 funcs="$funcs insque"
299 funcs="$funcs memchr"
300 funcs="$funcs memcmp"
301 funcs="$funcs memcpy"
302 funcs="$funcs memmove"
303 funcs="$funcs mempcpy"
304 funcs="$funcs memset"
305 funcs="$funcs mkstemps"
306 funcs="$funcs putenv"
307 funcs="$funcs random"
308 funcs="$funcs rename"
309 funcs="$funcs rindex"
310 funcs="$funcs setenv"
311 funcs="$funcs snprintf"
312 funcs="$funcs sigsetmask"
313 funcs="$funcs stpcpy"
314 funcs="$funcs stpncpy"
315 funcs="$funcs strcasecmp"
316 funcs="$funcs strchr"
317 funcs="$funcs strdup"
318 funcs="$funcs strncasecmp"
319 funcs="$funcs strndup"
320 funcs="$funcs strrchr"
321 funcs="$funcs strstr"
322 funcs="$funcs strtod"
323 funcs="$funcs strtol"
324 funcs="$funcs strtoul"
325 funcs="$funcs strverscmp"
326 funcs="$funcs tmpnam"
327 funcs="$funcs vasprintf"
328 funcs="$funcs vfprintf"
329 funcs="$funcs vprintf"
330 funcs="$funcs vsnprintf"
331 funcs="$funcs vsprintf"
332 funcs="$funcs waitpid"
334 # Also in the old function.def file: alloca, vfork, getopt.
336 vars="sys_errlist sys_nerr sys_siglist"
338 checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
339 checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
340 checkfuncs="$checkfuncs getsysinfo table sysctl wait3 wait4 __fsetlocking"
342 # These are neither executed nor required, but they help keep
343 # autoheader happy without adding a bunch of text to acconfig.h.
344 if test "x" = "y"; then
345 AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
346 getcwd getpagesize gettimeofday index insque mkstemps memchr memcmp memcpy \
347 memmove mempcpy memset putenv random rename rindex sigsetmask \
348 strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strndup strrchr strstr \
349 strtod strtol strtoul strverscmp tmpnam vasprintf vfprintf vprintf \
350 vsprintf waitpid getrusage on_exit psignal strerror strsignal \
351 sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
352 pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl wait3 wait4 \
353 realpath canonicalize_file_name __fsetlocking)
354 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
355 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
356 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
357 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
360 # For each of these functions, if the host does not provide the
361 # function we want to put FN.o in LIBOBJS, and if the host does
362 # provide the function, we want to define HAVE_FN in config.h.
367 if test -n "${with_target_subdir}"; then
369 # We are being configured as a target library. AC_REPLACE_FUNCS
370 # may not work correctly, because the compiler may not be able to
371 # link executables. Note that we may still be being configured
374 # If we are being configured for newlib, we know which functions
375 # newlib provide and which ones we will be expected to provide.
377 if test "x${with_newlib}" = "xyes"; then
378 AC_LIBOBJ([asprintf])
379 AC_LIBOBJ([basename])
383 AC_LIBOBJ([vasprintf])
387 asprintf | basename | insque | random | strdup | vasprintf)
390 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
391 AC_DEFINE_UNQUOTED($n)
396 # newlib doesnt provide any of the variables in $vars, so we
397 # dont have to check them here.
399 # Of the functions in $checkfuncs, newlib only has strerror.
400 AC_DEFINE(HAVE_STRERROR)
406 # We may wish to install the target headers somewhere.
407 AC_ARG_ENABLE(install-libiberty,
408 [ --enable-install-libiberty Install headers for end users],
409 enable_install_libiberty=$enableval,
410 enable_install_libiberty=no)dnl
412 # Option parsed, now set things appropriately.
413 case x"$enable_install_libiberty" in
415 target_header_dir=libiberty
421 # This could be sanity-checked in various ways...
422 target_header_dir="${enable_install_libiberty}"
429 # Not a target library, so we set things up to run the test suite.
435 AC_SUBST(target_header_dir)
438 *-*-cygwin* | *-*-mingw*)
439 AC_DEFINE(HAVE_SYS_ERRLIST)
440 AC_DEFINE(HAVE_SYS_NERR)
444 if test -z "${setobjs}"; then
448 # Handle VxWorks configuration specially, since on VxWorks the
449 # libraries are actually on the target board, not in the file
451 AC_LIBOBJ([basename])
452 AC_LIBOBJ([getpagesize])
455 AC_LIBOBJ([strcasecmp])
456 AC_LIBOBJ([strncasecmp])
460 AC_LIBOBJ([vasprintf])
463 basename | getpagesize | insque | random | strcasecmp)
465 strncasecmp | strdup | vfork | waitpid | vasprintf)
468 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
469 AC_DEFINE_UNQUOTED($n)
474 # VxWorks doesn't provide any of the variables in $vars, so we
475 # don't have to check them here.
477 # Of the functions in $checkfuncs, VxWorks only has strerror.
478 AC_DEFINE(HAVE_STRERROR)
486 if test -z "${setobjs}"; then
491 # The Cygwin library actually uses a couple of files from
492 # libiberty when it is built. If we are building a native
493 # Cygwin, and we run the tests, we will appear to have these
494 # files. However, when we go on to build winsup, we will wind up
495 # with a library which does not have the files, since they should
496 # have come from libiberty.
498 # We handle this by removing the functions the winsup library
499 # provides from our shell variables, so that they appear to be
502 # DJ - only if we're *building* cygwin, not just building *with* cygwin
504 if test -n "${with_target_subdir}"
506 funcs="`echo $funcs | sed -e 's/random//'`"
508 vars="`echo $vars | sed -e 's/sys_siglist//'`"
509 checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
514 # Under mingw32, sys_nerr and sys_errlist exist, but they are
515 # macros, so the test below won't find them.
516 libiberty_cv_var_sys_nerr=yes
517 libiberty_cv_var_sys_errlist=yes
521 # vfork and fork are stubs.
522 ac_cv_func_vfork_works=no
526 # Under some versions of uwin, vfork is notoriously buggy and the test
527 # can hang configure; on other versions, vfork exists just as a stub.
528 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
529 ac_cv_func_vfork_works=no
530 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
531 # macros (actually, these are imported from a DLL, but the end effect
532 # is the same), so the test below won't find them.
533 libiberty_cv_var_sys_nerr=yes
534 libiberty_cv_var_sys_errlist=yes
538 # Under VMS, vfork works very different than on Unix. The standard test
539 # won't work, and it isn't easily adaptable. It makes more sense to
541 ac_cv_func_vfork_works=yes
546 # We haven't set the list of objects yet. Use the standard autoconf
547 # tests. This will only work if the compiler works.
549 AC_REPLACE_FUNCS($funcs)
550 libiberty_AC_FUNC_C_ALLOCA
552 if test $ac_cv_func_vfork_works = no; then
555 # We only need _doprnt if we might use it to implement v*printf.
556 if test $ac_cv_func_vprintf != yes \
557 || test $ac_cv_func_vfprintf != yes \
558 || test $ac_cv_func_vsprintf != yes; then
559 AC_REPLACE_FUNCS(_doprnt)
561 AC_CHECK_FUNCS(_doprnt)
565 AC_MSG_CHECKING([for $v])
566 AC_CACHE_VAL(libiberty_cv_var_$v,
567 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
568 [eval "libiberty_cv_var_$v=yes"],
569 [eval "libiberty_cv_var_$v=no"])])
570 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
572 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
573 AC_DEFINE_UNQUOTED($n)
579 # special check for _system_configuration because AIX <4.3.2 do not
580 # contain the `physmem' member.
581 AC_MSG_CHECKING([for external symbol _system_configuration])
582 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
583 [[double x = _system_configuration.physmem;]])],
584 [AC_MSG_RESULT([yes])
585 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
586 [Define if you have the _system_configuration variable.])],
587 [AC_MSG_RESULT([no])])
589 AC_CHECK_FUNCS($checkfuncs)
590 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
591 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
592 AC_CHECK_DECLS([strverscmp])
593 libiberty_NEED_DECLARATION(canonicalize_file_name)
596 # Figure out which version of pexecute to use.
598 *-*-mingw* | *-*-winnt*) pexecute=./pex-win32.o ;;
599 *-*-msdosdjgpp*) pexecute=./pex-djgpp.o ;;
600 *-*-msdos*) pexecute=./pex-msdos.o ;;
601 *) pexecute=./pex-unix.o ;;
605 libiberty_AC_FUNC_STRNCMP
607 # Install a library built with a cross compiler in $(tooldir) rather
609 if test -z "${with_cross_host}"; then
614 AC_SUBST(INSTALL_DEST)
616 m4_pattern_allow(LIBOBJS)
618 for l in x $LIBOBJS; do
626 # We need multilib support, but only if configuring for the target.
627 AC_CONFIG_FILES([Makefile testsuite/Makefile])
628 AC_CONFIG_COMMANDS([default],
629 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
630 if test -n "$CONFIG_FILES"; then
631 if test -n "${with_target_subdir}"; then
632 # FIXME: We shouldn't need to set ac_file
634 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
635 . ${libiberty_topdir}/config-ml.in
641 with_target_subdir=${with_target_subdir}
642 with_multisubdir=${with_multisubdir}
643 ac_configure_args="--enable-multilib ${ac_configure_args}"
644 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
645 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
646 libiberty_topdir=${libiberty_topdir}