1 dnl Process this file with autoconf to produce a configure script
6 # This works around the fact that libtool configuration may change LD
7 # for this particular configuration, but some shells, instead of
8 # keeping the changes in LD private, export them just because LD is
9 # exported. We don't use libtool yet, but some day we might, so...
10 ORIGINAL_LD_FOR_MULTILIBS=$LD
12 dnl We use these options to decide which functions to include.
13 AC_ARG_WITH(target-subdir,
14 [ --with-target-subdir=SUBDIR Configuring in a subdirectory for target])
15 AC_ARG_WITH(build-subdir,
16 [ --with-build-subdir=SUBDIR Configuring in a subdirectory for build])
17 AC_ARG_WITH(cross-host,
18 [ --with-cross-host=HOST Configuring with a cross compiler])
20 [ --with-newlib Configuring with newlib])
22 if test "${srcdir}" = "."; then
23 if test -n "${with_build_subdir}"; then
24 libiberty_topdir="${srcdir}/../.."
26 elif test -z "${with_target_subdir}"; then
27 libiberty_topdir="${srcdir}/.."
29 if test "${with_target_subdir}" != "."; then
30 libiberty_topdir="${srcdir}/${with_multisrctop}../.."
32 libiberty_topdir="${srcdir}/${with_multisrctop}.."
36 libiberty_topdir="${srcdir}/.."
38 AC_SUBST(libiberty_topdir)
39 AC_CONFIG_AUX_DIR($libiberty_topdir)
41 dnl Very limited version of automake's enable-maintainer-mode
43 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
44 dnl maintainer-mode is disabled by default
45 AC_ARG_ENABLE(maintainer-mode,
46 [ --enable-maintainer-mode
47 enable make rules and dependencies not useful
48 (and sometimes confusing) to the casual installer],
49 maintainer_mode=$enableval,
52 AC_MSG_RESULT($maintainer_mode)
54 if test "$maintainer_mode" = "yes"; then
64 # Do we have a single-tree copy of texinfo? Even if we do, we can't
65 # rely on it - libiberty is built before texinfo.
66 AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
67 if test "x$MAKEINFO" = "x"; then
68 MAKEINFO="@echo makeinfo missing; true"
72 case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in
74 MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true"
77 *** Makeinfo is too old. Info documentation will not be built.])
84 AC_CHECK_PROG(PERL, perl, perl, )
85 if test x"$PERL" = x""; then
94 dnl When we start using automake:
95 dnl AM_INIT_AUTOMAKE(libiberty, 1.0)
97 dnl These must be called before AM_PROG_LIBTOOL, because it may want
98 dnl to call AC_CHECK_PROG.
100 AC_CHECK_TOOL(RANLIB, ranlib, :)
105 if test x$GCC = xyes; then
106 ac_libiberty_warn_cflags='-W -Wall -Wtraditional -pedantic'
108 AC_SUBST(ac_libiberty_warn_cflags)
111 # autoconf is lame and doesn't give us any substitution variable for this.
112 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
113 NO_MINUS_C_MINUS_O=yes
115 OUTPUT_OPTION='-o $@'
117 AC_SUBST(NO_MINUS_C_MINUS_O)
118 AC_SUBST(OUTPUT_OPTION)
124 dnl When we start using libtool:
125 dnl Default to a non shared library. This may be overridden by the
126 dnl configure option --enable-shared.
127 dnl AM_DISABLE_SHARED
129 dnl When we start using libtool:
132 dnl When we start using automake:
133 dnl AM_CONFIG_HEADER(config.h:config.in)
134 AC_CONFIG_HEADER(config.h:config.in)
136 dnl When we start using automake:
137 dnl AM_MAINTAINER_MODE
140 dnl When we start using automake:
144 . ${srcdir}/config.table
145 host_makefile_frag=${frag}
146 AC_SUBST_FILE(host_makefile_frag)
148 # It's OK to check for header files. Although the compiler may not be
149 # able to link anything, it had better be able to at least compile
151 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)
155 libiberty_AC_DECLARE_ERRNO
157 AC_CHECK_TYPE(uintptr_t, unsigned long)
158 # Given the above check, we always have uintptr_t or a fallback
159 # definition. So define HAVE_UINTPTR_T in case any imported code
161 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
165 # This is the list of functions which libiberty will provide if they
166 # are not available on the host.
169 funcs="$funcs atexit"
170 funcs="$funcs basename"
173 funcs="$funcs bsearch"
175 funcs="$funcs calloc"
178 funcs="$funcs getcwd"
179 funcs="$funcs getpagesize"
181 funcs="$funcs insque"
182 funcs="$funcs memchr"
183 funcs="$funcs memcmp"
184 funcs="$funcs memcpy"
185 funcs="$funcs memmove"
186 funcs="$funcs mempcpy"
187 funcs="$funcs memset"
188 funcs="$funcs mkstemps"
189 funcs="$funcs putenv"
190 funcs="$funcs random"
191 funcs="$funcs rename"
192 funcs="$funcs rindex"
193 funcs="$funcs setenv"
194 funcs="$funcs snprintf"
195 funcs="$funcs sigsetmask"
196 funcs="$funcs stpcpy"
197 funcs="$funcs stpncpy"
198 funcs="$funcs strcasecmp"
199 funcs="$funcs strchr"
200 funcs="$funcs strdup"
201 funcs="$funcs strncasecmp"
202 funcs="$funcs strrchr"
203 funcs="$funcs strstr"
204 funcs="$funcs strtod"
205 funcs="$funcs strtol"
206 funcs="$funcs strtoul"
207 funcs="$funcs tmpnam"
208 funcs="$funcs vasprintf"
209 funcs="$funcs vfprintf"
210 funcs="$funcs vprintf"
211 funcs="$funcs vsnprintf"
212 funcs="$funcs vsprintf"
213 funcs="$funcs waitpid"
215 # Also in the old function.def file: alloca, vfork, getopt.
217 vars="sys_errlist sys_nerr sys_siglist"
219 checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
220 checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
221 checkfuncs="$checkfuncs getsysinfo table sysctl"
223 # These are neither executed nor required, but they help keep
224 # autoheader happy without adding a bunch of text to acconfig.h.
225 if test "x" = "y"; then
226 AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
227 getcwd getpagesize index insque mkstemps memchr memcmp memcpy \
228 memmove mempcpy memset putenv random rename rindex sigsetmask \
229 strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strrchr strstr \
230 strtod strtol strtoul tmpnam vasprintf vfprintf vprintf \
231 vsprintf waitpid getrusage on_exit psignal strerror strsignal \
232 sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
233 pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl \
234 realpath canonicalize_file_name)
235 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
236 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
237 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
240 # For each of these functions, if the host does not provide the
241 # function we want to put FN.o in LIBOBJS, and if the host does
242 # provide the function, we want to define HAVE_FN in config.h.
247 if test -n "${with_target_subdir}"; then
249 # We are being configured as a target library. AC_REPLACE_FUNCS
250 # may not work correctly, because the compiler may not be able to
251 # link executables. Note that we may still be being configured
254 # If we are being configured for newlib, we know which functions
255 # newlib provide and which ones we will be expected to provide.
257 if test "x${with_newlib}" = "xyes"; then
258 AC_LIBOBJ([asprintf])
259 AC_LIBOBJ([basename])
263 AC_LIBOBJ([vasprintf])
267 asprintf | basename | insque | random | strdup | vasprintf)
270 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
271 AC_DEFINE_UNQUOTED($n)
276 # newlib doesnt provide any of the variables in $vars, so we
277 # dont have to check them here.
279 # Of the functions in $checkfuncs, newlib only has strerror.
280 AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
286 # We may wish to install the target headers somewhere.
287 AC_ARG_ENABLE(install-libiberty,
288 [ --enable-install-libiberty Install headers for end users],
289 enable_install_libiberty=$enableval,
290 enable_install_libiberty=no)dnl
292 # Option parsed, now set things appropriately.
293 case x"$enable_install_libiberty" in
295 target_header_dir=libiberty
301 # This could be sanity-checked in various ways...
302 target_header_dir="${enable_install_libiberty}"
309 # Not a target library, so we set things up to run the test suite.
310 CHECK=check-cplus-dem
315 AC_SUBST(target_header_dir)
318 *-*-cygwin* | *-*-mingw*)
319 AC_DEFINE_NOAUTOHEADER(HAVE_SYS_ERRLIST)
320 AC_DEFINE_NOAUTOHEADER(HAVE_SYS_NERR)
324 if test -z "${setobjs}"; then
328 # Handle VxWorks configuration specially, since on VxWorks the
329 # libraries are actually on the target board, not in the file
331 AC_LIBOBJ([basename])
332 AC_LIBOBJ([getpagesize])
335 AC_LIBOBJ([strcasecmp])
336 AC_LIBOBJ([strncasecmp])
340 AC_LIBOBJ([vasprintf])
343 basename | getpagesize | insque | random | strcasecmp)
345 strncasecmp | strdup | vfork | waitpid | vasprintf)
348 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
349 AC_DEFINE_UNQUOTED($n)
354 # VxWorks doesn't provide any of the variables in $vars, so we
355 # don't have to check them here.
357 # Of the functions in $checkfuncs, VxWorks only has strerror.
358 AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
366 if test -z "${setobjs}"; then
371 # The Cygwin library actually uses a couple of files from
372 # libiberty when it is built. If we are building a native
373 # Cygwin, and we run the tests, we will appear to have these
374 # files. However, when we go on to build winsup, we will wind up
375 # with a library which does not have the files, since they should
376 # have come from libiberty.
378 # We handle this by removing the functions the winsup library
379 # provides from our shell variables, so that they appear to be
382 # DJ - only if we're *building* cygwin, not just building *with* cygwin
384 if test -n "${with_target_subdir}"
386 funcs="`echo $funcs | sed -e 's/random//'`"
388 vars="`echo $vars | sed -e 's/sys_siglist//'`"
389 checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
394 # Under mingw32, sys_nerr and sys_errlist exist, but they are
395 # macros, so the test below won't find them.
396 libiberty_cv_var_sys_nerr=yes
397 libiberty_cv_var_sys_errlist=yes
401 # Under some versions of uwin, vfork is notoriously buggy and the test
402 # can hang configure; on other versions, vfork exists just as a stub.
403 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
404 ac_cv_func_vfork_works=no
405 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
406 # macros (actually, these are imported from a DLL, but the end effect
407 # is the same), so the test below won't find them.
408 libiberty_cv_var_sys_nerr=yes
409 libiberty_cv_var_sys_errlist=yes
413 # Under VMS, vfork works very different than on Unix. The standard test
414 # won't work, and it isn't easily adaptable. It makes more sense to
416 ac_cv_func_vfork_works=yes
421 # We haven't set the list of objects yet. Use the standard autoconf
422 # tests. This will only work if the compiler works.
424 AC_REPLACE_FUNCS($funcs)
425 libiberty_AC_FUNC_C_ALLOCA
427 if test $ac_cv_func_vfork_works = no; then
430 # We only need _doprnt if we might use it to implement v*printf.
431 if test $ac_cv_func_vprintf != yes \
432 || test $ac_cv_func_vfprintf != yes \
433 || test $ac_cv_func_vsprintf != yes; then
434 AC_REPLACE_FUNCS(_doprnt)
436 AC_CHECK_FUNCS(_doprnt)
440 AC_MSG_CHECKING([for $v])
441 AC_CACHE_VAL(libiberty_cv_var_$v,
442 [AC_TRY_LINK([int *p;], [extern int $v []; p = $v;],
443 [eval "libiberty_cv_var_$v=yes"],
444 [eval "libiberty_cv_var_$v=no"])])
445 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
447 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
448 AC_DEFINE_UNQUOTED($n)
454 # special check for _system_configuration because AIX <4.3.2 do not
455 # contain the `physmem' member.
456 AC_MSG_CHECKING([for external symbol _system_configuration])
457 AC_TRY_COMPILE([#include <sys/systemcfg.h>],
458 [double x = _system_configuration.physmem;],
459 [AC_MSG_RESULT([yes])
460 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
461 [Define if you have the _system_configuration variable.])],
462 [AC_MSG_RESULT([no])])
464 AC_CHECK_FUNCS($checkfuncs)
465 libiberty_NEED_DECLARATION(canonicalize_file_name)
468 # Figure out which version of pexecute to use.
470 *-*-mingw* | *-*-winnt*) pexecute=pex-win32.o ;;
471 *-*-msdosdjgpp*) pexecute=pex-djgpp.o ;;
472 *-*-msdos*) pexecute=pex-msdos.o ;;
473 *-*-os2-emx*) pexecute=pex-os2.o ;;
474 *) pexecute=pex-unix.o ;;
478 libiberty_AC_FUNC_STRNCMP
480 # Install a library built with a cross compiler in $(tooldir) rather
482 if test -z "${with_cross_host}"; then
487 AC_SUBST(INSTALL_DEST)
489 # We need multilib support, but only if configuring for the target.
490 AC_OUTPUT(Makefile testsuite/Makefile,
491 [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
492 if test -n "$CONFIG_FILES"; then
493 if test -n "${with_build_subdir}" || test -n "${with_target_subdir}"; then
494 # FIXME: We shouldn't need to set ac_file
496 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
497 . ${libiberty_topdir}/config-ml.in
503 with_target_subdir=${with_target_subdir}
504 with_build_subdir=${with_build_subdir}
505 with_multisubdir=${with_multisubdir}
506 ac_configure_args="--enable-multilib ${ac_configure_args}"
507 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
508 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
509 libiberty_topdir=${libiberty_topdir}