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, :)
106 if test x$GCC = xyes; then
107 ac_libiberty_warn_cflags='-W -Wall -Wtraditional -pedantic'
109 AC_SUBST(ac_libiberty_warn_cflags)
112 # autoconf is lame and doesn't give us any substitution variable for this.
113 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
114 NO_MINUS_C_MINUS_O=yes
116 OUTPUT_OPTION='-o $@'
118 AC_SUBST(NO_MINUS_C_MINUS_O)
119 AC_SUBST(OUTPUT_OPTION)
125 dnl When we start using libtool:
126 dnl Default to a non shared library. This may be overridden by the
127 dnl configure option --enable-shared.
128 dnl AM_DISABLE_SHARED
130 dnl When we start using libtool:
133 dnl When we start using automake:
134 dnl AM_CONFIG_HEADER(config.h:config.in)
135 AC_CONFIG_HEADER(config.h:config.in)
137 dnl When we start using automake:
138 dnl AM_MAINTAINER_MODE
141 dnl When we start using automake:
145 . ${srcdir}/config.table
146 host_makefile_frag=${frag}
147 AC_SUBST_FILE(host_makefile_frag)
149 # It's OK to check for header files. Although the compiler may not be
150 # able to link anything, it had better be able to at least compile
152 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)
156 libiberty_AC_DECLARE_ERRNO
158 AC_CHECK_TYPE(uintptr_t, unsigned long)
159 # Given the above check, we always have uintptr_t or a fallback
160 # definition. So define HAVE_UINTPTR_T in case any imported code
162 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
166 # This is the list of functions which libiberty will provide if they
167 # are not available on the host.
170 funcs="$funcs atexit"
171 funcs="$funcs basename"
174 funcs="$funcs bsearch"
176 funcs="$funcs calloc"
179 funcs="$funcs getcwd"
180 funcs="$funcs getpagesize"
182 funcs="$funcs insque"
183 funcs="$funcs memchr"
184 funcs="$funcs memcmp"
185 funcs="$funcs memcpy"
186 funcs="$funcs memmove"
187 funcs="$funcs mempcpy"
188 funcs="$funcs memset"
189 funcs="$funcs mkstemps"
190 funcs="$funcs putenv"
191 funcs="$funcs random"
192 funcs="$funcs rename"
193 funcs="$funcs rindex"
194 funcs="$funcs setenv"
195 funcs="$funcs snprintf"
196 funcs="$funcs sigsetmask"
197 funcs="$funcs stpcpy"
198 funcs="$funcs stpncpy"
199 funcs="$funcs strcasecmp"
200 funcs="$funcs strchr"
201 funcs="$funcs strdup"
202 funcs="$funcs strncasecmp"
203 funcs="$funcs strrchr"
204 funcs="$funcs strstr"
205 funcs="$funcs strtod"
206 funcs="$funcs strtol"
207 funcs="$funcs strtoul"
208 funcs="$funcs tmpnam"
209 funcs="$funcs vasprintf"
210 funcs="$funcs vfprintf"
211 funcs="$funcs vprintf"
212 funcs="$funcs vsnprintf"
213 funcs="$funcs vsprintf"
214 funcs="$funcs waitpid"
216 # Also in the old function.def file: alloca, vfork, getopt.
218 vars="sys_errlist sys_nerr sys_siglist"
220 checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
221 checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
222 checkfuncs="$checkfuncs getsysinfo table sysctl"
224 # These are neither executed nor required, but they help keep
225 # autoheader happy without adding a bunch of text to acconfig.h.
226 if test "x" = "y"; then
227 AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
228 getcwd getpagesize index insque mkstemps memchr memcmp memcpy \
229 memmove mempcpy memset putenv random rename rindex sigsetmask \
230 strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strrchr strstr \
231 strtod strtol strtoul tmpnam vasprintf vfprintf vprintf \
232 vsprintf waitpid getrusage on_exit psignal strerror strsignal \
233 sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
234 pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl \
235 realpath canonicalize_file_name)
236 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
237 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
238 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
241 # For each of these functions, if the host does not provide the
242 # function we want to put FN.o in LIBOBJS, and if the host does
243 # provide the function, we want to define HAVE_FN in config.h.
248 if test -n "${with_target_subdir}"; then
250 # We are being configured as a target library. AC_REPLACE_FUNCS
251 # may not work correctly, because the compiler may not be able to
252 # link executables. Note that we may still be being configured
255 # If we are being configured for newlib, we know which functions
256 # newlib provide and which ones we will be expected to provide.
258 if test "x${with_newlib}" = "xyes"; then
259 AC_LIBOBJ([asprintf])
260 AC_LIBOBJ([basename])
264 AC_LIBOBJ([vasprintf])
268 asprintf | basename | insque | random | strdup | vasprintf)
271 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
272 AC_DEFINE_UNQUOTED($n)
277 # newlib doesnt provide any of the variables in $vars, so we
278 # dont have to check them here.
280 # Of the functions in $checkfuncs, newlib only has strerror.
281 AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
287 # We may wish to install the target headers somewhere.
288 AC_ARG_ENABLE(install-libiberty,
289 [ --enable-install-libiberty Install headers for end users],
290 enable_install_libiberty=$enableval,
291 enable_install_libiberty=no)dnl
293 # Option parsed, now set things appropriately.
294 case x"$enable_install_libiberty" in
296 target_header_dir=libiberty
302 # This could be sanity-checked in various ways...
303 target_header_dir="${enable_install_libiberty}"
310 # Not a target library, so we set things up to run the test suite.
311 CHECK=check-cplus-dem
316 AC_SUBST(target_header_dir)
319 *-*-cygwin* | *-*-mingw*)
320 AC_DEFINE_NOAUTOHEADER(HAVE_SYS_ERRLIST)
321 AC_DEFINE_NOAUTOHEADER(HAVE_SYS_NERR)
325 if test -z "${setobjs}"; then
329 # Handle VxWorks configuration specially, since on VxWorks the
330 # libraries are actually on the target board, not in the file
332 AC_LIBOBJ([basename])
333 AC_LIBOBJ([getpagesize])
336 AC_LIBOBJ([strcasecmp])
337 AC_LIBOBJ([strncasecmp])
341 AC_LIBOBJ([vasprintf])
344 basename | getpagesize | insque | random | strcasecmp)
346 strncasecmp | strdup | vfork | waitpid | vasprintf)
349 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
350 AC_DEFINE_UNQUOTED($n)
355 # VxWorks doesn't provide any of the variables in $vars, so we
356 # don't have to check them here.
358 # Of the functions in $checkfuncs, VxWorks only has strerror.
359 AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
367 if test -z "${setobjs}"; then
372 # The Cygwin library actually uses a couple of files from
373 # libiberty when it is built. If we are building a native
374 # Cygwin, and we run the tests, we will appear to have these
375 # files. However, when we go on to build winsup, we will wind up
376 # with a library which does not have the files, since they should
377 # have come from libiberty.
379 # We handle this by removing the functions the winsup library
380 # provides from our shell variables, so that they appear to be
383 # DJ - only if we're *building* cygwin, not just building *with* cygwin
385 if test -n "${with_target_subdir}"
387 funcs="`echo $funcs | sed -e 's/random//'`"
389 vars="`echo $vars | sed -e 's/sys_siglist//'`"
390 checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
395 # Under mingw32, sys_nerr and sys_errlist exist, but they are
396 # macros, so the test below won't find them.
397 libiberty_cv_var_sys_nerr=yes
398 libiberty_cv_var_sys_errlist=yes
402 # Under some versions of uwin, vfork is notoriously buggy and the test
403 # can hang configure; on other versions, vfork exists just as a stub.
404 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
405 ac_cv_func_vfork_works=no
406 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
407 # macros (actually, these are imported from a DLL, but the end effect
408 # is the same), so the test below won't find them.
409 libiberty_cv_var_sys_nerr=yes
410 libiberty_cv_var_sys_errlist=yes
414 # Under VMS, vfork works very different than on Unix. The standard test
415 # won't work, and it isn't easily adaptable. It makes more sense to
417 ac_cv_func_vfork_works=yes
422 # We haven't set the list of objects yet. Use the standard autoconf
423 # tests. This will only work if the compiler works.
425 AC_REPLACE_FUNCS($funcs)
426 libiberty_AC_FUNC_C_ALLOCA
428 if test $ac_cv_func_vfork_works = no; then
431 # We only need _doprnt if we might use it to implement v*printf.
432 if test $ac_cv_func_vprintf != yes \
433 || test $ac_cv_func_vfprintf != yes \
434 || test $ac_cv_func_vsprintf != yes; then
435 AC_REPLACE_FUNCS(_doprnt)
437 AC_CHECK_FUNCS(_doprnt)
441 AC_MSG_CHECKING([for $v])
442 AC_CACHE_VAL(libiberty_cv_var_$v,
443 [AC_TRY_LINK([int *p;], [extern int $v []; p = $v;],
444 [eval "libiberty_cv_var_$v=yes"],
445 [eval "libiberty_cv_var_$v=no"])])
446 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
448 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
449 AC_DEFINE_UNQUOTED($n)
455 # special check for _system_configuration because AIX <4.3.2 do not
456 # contain the `physmem' member.
457 AC_MSG_CHECKING([for external symbol _system_configuration])
458 AC_TRY_COMPILE([#include <sys/systemcfg.h>],
459 [double x = _system_configuration.physmem;],
460 [AC_MSG_RESULT([yes])
461 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
462 [Define if you have the _system_configuration variable.])],
463 [AC_MSG_RESULT([no])])
465 AC_CHECK_FUNCS($checkfuncs)
466 libiberty_NEED_DECLARATION(canonicalize_file_name)
469 # Figure out which version of pexecute to use.
471 *-*-mingw* | *-*-winnt*) pexecute=pex-win32.o ;;
472 *-*-msdosdjgpp*) pexecute=pex-djgpp.o ;;
473 *-*-msdos*) pexecute=pex-msdos.o ;;
474 *-*-os2-emx*) pexecute=pex-os2.o ;;
475 *) pexecute=pex-unix.o ;;
479 libiberty_AC_FUNC_STRNCMP
481 # Install a library built with a cross compiler in $(tooldir) rather
483 if test -z "${with_cross_host}"; then
488 AC_SUBST(INSTALL_DEST)
490 # We need multilib support, but only if configuring for the target.
491 AC_OUTPUT(Makefile testsuite/Makefile,
492 [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
493 if test -n "$CONFIG_FILES"; then
494 if test -n "${with_build_subdir}" || test -n "${with_target_subdir}"; then
495 # FIXME: We shouldn't need to set ac_file
497 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
498 . ${libiberty_topdir}/config-ml.in
504 with_target_subdir=${with_target_subdir}
505 with_build_subdir=${with_build_subdir}
506 with_multisubdir=${with_multisubdir}
507 ac_configure_args="--enable-multilib ${ac_configure_args}"
508 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
509 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
510 libiberty_topdir=${libiberty_topdir}