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$GCC = xyes; then
117 ac_libiberty_warn_cflags='-W -Wall -Wtraditional -pedantic'
119 AC_SUBST(ac_libiberty_warn_cflags)
122 # autoconf is lame and doesn't give us any substitution variable for this.
123 if eval "test \"`echo '$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 . ${srcdir}/config.table
156 host_makefile_frag=${frag}
157 AC_SUBST_FILE(host_makefile_frag)
159 # It's OK to check for header files. Although the compiler may not be
160 # able to link anything, it had better be able to at least compile
162 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)
166 libiberty_AC_DECLARE_ERRNO
168 AC_CHECK_TYPE(uintptr_t, unsigned long)
169 # Given the above check, we always have uintptr_t or a fallback
170 # definition. So define HAVE_UINTPTR_T in case any imported code
172 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
176 # This is the list of functions which libiberty will provide if they
177 # are not available on the host.
180 funcs="$funcs atexit"
181 funcs="$funcs basename"
184 funcs="$funcs bsearch"
186 funcs="$funcs calloc"
189 funcs="$funcs getcwd"
190 funcs="$funcs getpagesize"
192 funcs="$funcs insque"
193 funcs="$funcs memchr"
194 funcs="$funcs memcmp"
195 funcs="$funcs memcpy"
196 funcs="$funcs memmove"
197 funcs="$funcs mempcpy"
198 funcs="$funcs memset"
199 funcs="$funcs mkstemps"
200 funcs="$funcs putenv"
201 funcs="$funcs random"
202 funcs="$funcs rename"
203 funcs="$funcs rindex"
204 funcs="$funcs setenv"
205 funcs="$funcs snprintf"
206 funcs="$funcs sigsetmask"
207 funcs="$funcs stpcpy"
208 funcs="$funcs stpncpy"
209 funcs="$funcs strcasecmp"
210 funcs="$funcs strchr"
211 funcs="$funcs strdup"
212 funcs="$funcs strncasecmp"
213 funcs="$funcs strrchr"
214 funcs="$funcs strstr"
215 funcs="$funcs strtod"
216 funcs="$funcs strtol"
217 funcs="$funcs strtoul"
218 funcs="$funcs tmpnam"
219 funcs="$funcs vasprintf"
220 funcs="$funcs vfprintf"
221 funcs="$funcs vprintf"
222 funcs="$funcs vsnprintf"
223 funcs="$funcs vsprintf"
224 funcs="$funcs waitpid"
226 # Also in the old function.def file: alloca, vfork, getopt.
228 vars="sys_errlist sys_nerr sys_siglist"
230 checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
231 checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
232 checkfuncs="$checkfuncs getsysinfo table sysctl"
234 # These are neither executed nor required, but they help keep
235 # autoheader happy without adding a bunch of text to acconfig.h.
236 if test "x" = "y"; then
237 AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
238 getcwd getpagesize index insque mkstemps memchr memcmp memcpy \
239 memmove mempcpy memset putenv random rename rindex sigsetmask \
240 strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strrchr strstr \
241 strtod strtol strtoul tmpnam vasprintf vfprintf vprintf \
242 vsprintf waitpid getrusage on_exit psignal strerror strsignal \
243 sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
244 pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl \
245 realpath canonicalize_file_name)
246 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
247 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
248 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
251 # For each of these functions, if the host does not provide the
252 # function we want to put FN.o in LIBOBJS, and if the host does
253 # provide the function, we want to define HAVE_FN in config.h.
258 if test -n "${with_target_subdir}"; then
260 # We are being configured as a target library. AC_REPLACE_FUNCS
261 # may not work correctly, because the compiler may not be able to
262 # link executables. Note that we may still be being configured
265 # If we are being configured for newlib, we know which functions
266 # newlib provide and which ones we will be expected to provide.
268 if test "x${with_newlib}" = "xyes"; then
269 AC_LIBOBJ([asprintf])
270 AC_LIBOBJ([basename])
274 AC_LIBOBJ([vasprintf])
278 asprintf | basename | insque | random | strdup | vasprintf)
281 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
282 AC_DEFINE_UNQUOTED($n)
287 # newlib doesnt provide any of the variables in $vars, so we
288 # dont have to check them here.
290 # Of the functions in $checkfuncs, newlib only has strerror.
291 AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
297 # We may wish to install the target headers somewhere.
298 AC_ARG_ENABLE(install-libiberty,
299 [ --enable-install-libiberty Install headers for end users],
300 enable_install_libiberty=$enableval,
301 enable_install_libiberty=no)dnl
303 # Option parsed, now set things appropriately.
304 case x"$enable_install_libiberty" in
306 target_header_dir=libiberty
312 # This could be sanity-checked in various ways...
313 target_header_dir="${enable_install_libiberty}"
320 # Not a target library, so we set things up to run the test suite.
321 CHECK=check-cplus-dem
326 AC_SUBST(target_header_dir)
329 *-*-cygwin* | *-*-mingw*)
330 AC_DEFINE_NOAUTOHEADER(HAVE_SYS_ERRLIST)
331 AC_DEFINE_NOAUTOHEADER(HAVE_SYS_NERR)
335 if test -z "${setobjs}"; then
339 # Handle VxWorks configuration specially, since on VxWorks the
340 # libraries are actually on the target board, not in the file
342 AC_LIBOBJ([basename])
343 AC_LIBOBJ([getpagesize])
346 AC_LIBOBJ([strcasecmp])
347 AC_LIBOBJ([strncasecmp])
351 AC_LIBOBJ([vasprintf])
354 basename | getpagesize | insque | random | strcasecmp)
356 strncasecmp | strdup | vfork | waitpid | vasprintf)
359 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
360 AC_DEFINE_UNQUOTED($n)
365 # VxWorks doesn't provide any of the variables in $vars, so we
366 # don't have to check them here.
368 # Of the functions in $checkfuncs, VxWorks only has strerror.
369 AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
377 if test -z "${setobjs}"; then
382 # The Cygwin library actually uses a couple of files from
383 # libiberty when it is built. If we are building a native
384 # Cygwin, and we run the tests, we will appear to have these
385 # files. However, when we go on to build winsup, we will wind up
386 # with a library which does not have the files, since they should
387 # have come from libiberty.
389 # We handle this by removing the functions the winsup library
390 # provides from our shell variables, so that they appear to be
393 # DJ - only if we're *building* cygwin, not just building *with* cygwin
395 if test -n "${with_target_subdir}"
397 funcs="`echo $funcs | sed -e 's/random//'`"
399 vars="`echo $vars | sed -e 's/sys_siglist//'`"
400 checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
405 # Under mingw32, sys_nerr and sys_errlist exist, but they are
406 # macros, so the test below won't find them.
407 libiberty_cv_var_sys_nerr=yes
408 libiberty_cv_var_sys_errlist=yes
412 # Under some versions of uwin, vfork is notoriously buggy and the test
413 # can hang configure; on other versions, vfork exists just as a stub.
414 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
415 ac_cv_func_vfork_works=no
416 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
417 # macros (actually, these are imported from a DLL, but the end effect
418 # is the same), so the test below won't find them.
419 libiberty_cv_var_sys_nerr=yes
420 libiberty_cv_var_sys_errlist=yes
424 # Under VMS, vfork works very different than on Unix. The standard test
425 # won't work, and it isn't easily adaptable. It makes more sense to
427 ac_cv_func_vfork_works=yes
432 # We haven't set the list of objects yet. Use the standard autoconf
433 # tests. This will only work if the compiler works.
435 AC_REPLACE_FUNCS($funcs)
436 libiberty_AC_FUNC_C_ALLOCA
438 if test $ac_cv_func_vfork_works = no; then
441 # We only need _doprnt if we might use it to implement v*printf.
442 if test $ac_cv_func_vprintf != yes \
443 || test $ac_cv_func_vfprintf != yes \
444 || test $ac_cv_func_vsprintf != yes; then
445 AC_REPLACE_FUNCS(_doprnt)
447 AC_CHECK_FUNCS(_doprnt)
451 AC_MSG_CHECKING([for $v])
452 AC_CACHE_VAL(libiberty_cv_var_$v,
453 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
454 [eval "libiberty_cv_var_$v=yes"],
455 [eval "libiberty_cv_var_$v=no"])])
456 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
458 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
459 AC_DEFINE_UNQUOTED($n)
465 # special check for _system_configuration because AIX <4.3.2 do not
466 # contain the `physmem' member.
467 AC_MSG_CHECKING([for external symbol _system_configuration])
468 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
469 [[double x = _system_configuration.physmem;]])],
470 [AC_MSG_RESULT([yes])
471 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
472 [Define if you have the _system_configuration variable.])],
473 [AC_MSG_RESULT([no])])
475 AC_CHECK_FUNCS($checkfuncs)
476 libiberty_NEED_DECLARATION(canonicalize_file_name)
479 # Figure out which version of pexecute to use.
481 *-*-mingw* | *-*-winnt*) pexecute=./pex-win32.o ;;
482 *-*-msdosdjgpp*) pexecute=./pex-djgpp.o ;;
483 *-*-msdos*) pexecute=./pex-msdos.o ;;
484 *-*-os2-emx*) pexecute=./pex-os2.o ;;
485 *) pexecute=./pex-unix.o ;;
489 libiberty_AC_FUNC_STRNCMP
491 # Install a library built with a cross compiler in $(tooldir) rather
493 if test -z "${with_cross_host}"; then
498 AC_SUBST(INSTALL_DEST)
500 m4_pattern_allow(LIBOBJS)
502 for l in x $LIBOBJS; do
510 # We need multilib support, but only if configuring for the target.
511 AC_CONFIG_FILES([Makefile testsuite/Makefile])
512 AC_CONFIG_COMMANDS([default],
513 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
514 if test -n "$CONFIG_FILES"; then
515 if test -n "${with_build_subdir}" || test -n "${with_target_subdir}"; then
516 # FIXME: We shouldn't need to set ac_file
518 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
519 . ${libiberty_topdir}/config-ml.in
525 with_target_subdir=${with_target_subdir}
526 with_build_subdir=${with_build_subdir}
527 with_multisubdir=${with_multisubdir}
528 ac_configure_args="--enable-multilib ${ac_configure_args}"
529 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
530 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
531 libiberty_topdir=${libiberty_topdir}