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 # autoconf is lame and doesn't give us any substitution variable for this.
106 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
107 NO_MINUS_C_MINUS_O=yes
109 OUTPUT_OPTION='-o $@'
111 AC_SUBST(NO_MINUS_C_MINUS_O)
112 AC_SUBST(OUTPUT_OPTION)
119 dnl When we start using libtool:
120 dnl Default to a non shared library. This may be overridden by the
121 dnl configure option --enable-shared.
122 dnl AM_DISABLE_SHARED
124 dnl When we start using libtool:
127 dnl When we start using automake:
128 dnl AM_CONFIG_HEADER(config.h:config.in)
129 AC_CONFIG_HEADER(config.h:config.in)
131 dnl When we start using automake:
132 dnl AM_MAINTAINER_MODE
135 dnl When we start using automake:
139 . ${srcdir}/config.table
140 host_makefile_frag=${frag}
141 AC_SUBST_FILE(host_makefile_frag)
143 # It's OK to check for header files. Although the compiler may not be
144 # able to link anything, it had better be able to at least compile
146 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)
150 libiberty_AC_DECLARE_ERRNO
152 AC_CHECK_TYPE(uintptr_t, unsigned long)
153 # Given the above check, we always have uintptr_t or a fallback
154 # definition. So define HAVE_UINTPTR_T in case any imported code
156 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
160 # This is the list of functions which libiberty will provide if they
161 # are not available on the host.
164 funcs="$funcs atexit"
165 funcs="$funcs basename"
168 funcs="$funcs bsearch"
170 funcs="$funcs calloc"
173 funcs="$funcs getcwd"
174 funcs="$funcs getpagesize"
176 funcs="$funcs insque"
177 funcs="$funcs memchr"
178 funcs="$funcs memcmp"
179 funcs="$funcs memcpy"
180 funcs="$funcs memmove"
181 funcs="$funcs mempcpy"
182 funcs="$funcs memset"
183 funcs="$funcs mkstemps"
184 funcs="$funcs putenv"
185 funcs="$funcs random"
186 funcs="$funcs rename"
187 funcs="$funcs rindex"
188 funcs="$funcs setenv"
189 funcs="$funcs snprintf"
190 funcs="$funcs sigsetmask"
191 funcs="$funcs stpcpy"
192 funcs="$funcs stpncpy"
193 funcs="$funcs strcasecmp"
194 funcs="$funcs strchr"
195 funcs="$funcs strdup"
196 funcs="$funcs strncasecmp"
197 funcs="$funcs strrchr"
198 funcs="$funcs strstr"
199 funcs="$funcs strtod"
200 funcs="$funcs strtol"
201 funcs="$funcs strtoul"
202 funcs="$funcs tmpnam"
203 funcs="$funcs vasprintf"
204 funcs="$funcs vfprintf"
205 funcs="$funcs vprintf"
206 funcs="$funcs vsnprintf"
207 funcs="$funcs vsprintf"
208 funcs="$funcs waitpid"
210 # Also in the old function.def file: alloca, vfork, getopt.
212 vars="sys_errlist sys_nerr sys_siglist"
214 checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
215 checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
216 checkfuncs="$checkfuncs getsysinfo table sysctl"
218 # These are neither executed nor required, but they help keep
219 # autoheader happy without adding a bunch of text to acconfig.h.
220 if test "x" = "y"; then
221 AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
222 getcwd getpagesize index insque mkstemps memchr memcmp memcpy \
223 memmove mempcpy memset putenv random rename rindex sigsetmask \
224 strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strrchr strstr \
225 strtod strtol strtoul tmpnam vasprintf vfprintf vprintf \
226 vsprintf waitpid getrusage on_exit psignal strerror strsignal \
227 sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
228 pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl \
229 realpath canonicalize_file_name)
230 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
231 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
232 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
235 # For each of these functions, if the host does not provide the
236 # function we want to put FN.o in LIBOBJS, and if the host does
237 # provide the function, we want to define HAVE_FN in config.h.
242 if test -n "${with_target_subdir}"; then
244 # We are being configured as a target library. AC_REPLACE_FUNCS
245 # may not work correctly, because the compiler may not be able to
246 # link executables. Note that we may still be being configured
249 # If we are being configured for newlib, we know which functions
250 # newlib provide and which ones we will be expected to provide.
252 if test "x${with_newlib}" = "xyes"; then
253 LIBOBJS="asprintf.o basename.o insque.o random.o strdup.o vasprintf.o"
257 asprintf | basename | insque | random | strdup | vasprintf)
260 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
261 AC_DEFINE_UNQUOTED($n)
266 # newlib doesnt provide any of the variables in $vars, so we
267 # dont have to check them here.
269 # Of the functions in $checkfuncs, newlib only has strerror.
270 AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
276 # We may wish to install the target headers somewhere.
277 AC_ARG_ENABLE(install-libiberty,
278 [ --enable-install-libiberty Install headers for end users],
279 enable_install_libiberty=$enableval,
280 enable_install_libiberty=no)dnl
282 # Option parsed, now set things appropriately.
283 case x"$enable_install_libiberty" in
285 target_header_dir=libiberty
291 # This could be sanity-checked in various ways...
292 target_header_dir="${enable_install_libiberty}"
299 # Not a target library, so we set things up to run the test suite.
300 CHECK=check-cplus-dem
305 AC_SUBST(target_header_dir)
308 *-*-cygwin* | *-*-mingw*)
309 AC_DEFINE_NOAUTOHEADER(HAVE_SYS_ERRLIST)
310 AC_DEFINE_NOAUTOHEADER(HAVE_SYS_NERR)
314 if test -z "${setobjs}"; then
318 # Handle VxWorks configuration specially, since on VxWorks the
319 # libraries are actually on the target board, not in the file
321 LIBOBJS="basename.o getpagesize.o insque.o random.o strcasecmp.o"
322 LIBOBJS="$LIBOBJS strncasecmp.o strdup.o vfork.o waitpid.o vasprintf.o"
325 basename | getpagesize | insque | random | strcasecmp)
327 strncasecmp | strdup | vfork | waitpid | vasprintf)
330 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
331 AC_DEFINE_UNQUOTED($n)
336 # VxWorks doesn't provide any of the variables in $vars, so we
337 # don't have to check them here.
339 # Of the functions in $checkfuncs, VxWorks only has strerror.
340 AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
348 if test -z "${setobjs}"; then
353 # The Cygwin library actually uses a couple of files from
354 # libiberty when it is built. If we are building a native
355 # Cygwin, and we run the tests, we will appear to have these
356 # files. However, when we go on to build winsup, we will wind up
357 # with a library which does not have the files, since they should
358 # have come from libiberty.
360 # We handle this by removing the functions the winsup library
361 # provides from our shell variables, so that they appear to be
364 # DJ - only if we're *building* cygwin, not just building *with* cygwin
366 if test -n "${with_target_subdir}"
368 funcs="`echo $funcs | sed -e 's/random//'`"
369 LIBOBJS="$LIBOBJS random.o"
370 vars="`echo $vars | sed -e 's/sys_siglist//'`"
371 checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
376 # Under mingw32, sys_nerr and sys_errlist exist, but they are
377 # macros, so the test below won't find them.
378 libiberty_cv_var_sys_nerr=yes
379 libiberty_cv_var_sys_errlist=yes
383 # Under some versions of uwin, vfork is notoriously buggy and the test
384 # can hang configure; on other versions, vfork exists just as a stub.
385 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
386 ac_cv_func_vfork_works=no
387 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
388 # macros (actually, these are imported from a DLL, but the end effect
389 # is the same), so the test below won't find them.
390 libiberty_cv_var_sys_nerr=yes
391 libiberty_cv_var_sys_errlist=yes
395 # Under VMS, vfork works very different than on Unix. The standard test
396 # won't work, and it isn't easily adaptable. It makes more sense to
398 ac_cv_func_vfork_works=yes
403 # We haven't set the list of objects yet. Use the standard autoconf
404 # tests. This will only work if the compiler works.
406 AC_REPLACE_FUNCS($funcs)
407 libiberty_AC_FUNC_C_ALLOCA
409 if test $ac_cv_func_vfork_works = no; then
410 LIBOBJS="$LIBOBJS vfork.o"
412 # We only need _doprnt if we might use it to implement v*printf.
413 if test $ac_cv_func_vprintf != yes \
414 || test $ac_cv_func_vfprintf != yes \
415 || test $ac_cv_func_vsprintf != yes; then
416 AC_REPLACE_FUNCS(_doprnt)
418 AC_CHECK_FUNCS(_doprnt)
422 AC_MSG_CHECKING([for $v])
423 AC_CACHE_VAL(libiberty_cv_var_$v,
424 [AC_TRY_LINK([int *p;], [extern int $v []; p = $v;],
425 [eval "libiberty_cv_var_$v=yes"],
426 [eval "libiberty_cv_var_$v=no"])])
427 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
429 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
430 AC_DEFINE_UNQUOTED($n)
436 # special check for _system_configuration because AIX <4.3.2 do not
437 # contain the `physmem' member.
438 AC_MSG_CHECKING([for external symbol _system_configuration])
439 AC_TRY_COMPILE([#include <sys/systemcfg.h>],
440 [double x = _system_configuration.physmem;],
441 [AC_MSG_RESULT([yes])
442 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
443 [Define if you have the _system_configuration variable.])],
444 [AC_MSG_RESULT([no])])
446 AC_CHECK_FUNCS($checkfuncs)
447 libiberty_NEED_DECLARATION(canonicalize_file_name)
450 # Figure out which version of pexecute to use.
452 *-*-mingw* | *-*-winnt*) pexecute=pex-win32.o ;;
453 *-*-msdosdjgpp*) pexecute=pex-djgpp.o ;;
454 *-*-msdos*) pexecute=pex-msdos.o ;;
455 *-*-os2-emx*) pexecute=pex-os2.o ;;
456 *) pexecute=pex-unix.o ;;
460 libiberty_AC_FUNC_STRNCMP
462 # Install a library built with a cross compiler in $(tooldir) rather
464 if test -z "${with_cross_host}"; then
469 AC_SUBST(INSTALL_DEST)
471 # We need multilib support, but only if configuring for the target.
472 AC_OUTPUT(Makefile testsuite/Makefile,
473 [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
474 if test -n "$CONFIG_FILES"; then
475 if test -n "${with_build_subdir}" || test -n "${with_target_subdir}"; then
476 # FIXME: We shouldn't need to set ac_file
478 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
479 . ${libiberty_topdir}/config-ml.in
485 with_target_subdir=${with_target_subdir}
486 with_build_subdir=${with_build_subdir}
487 with_multisubdir=${with_multisubdir}
488 ac_configure_args="--enable-multilib ${ac_configure_args}"
489 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
490 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
491 libiberty_topdir=${libiberty_topdir}