1 ## libtool.m4 - Configure libtool for the target system. -*-Shell-script-*-
2 ## Copyright (C) 1996-1999 Free Software Foundation, Inc.
3 ## Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
5 ## This program is free software; you can redistribute it and/or modify
6 ## it under the terms of the GNU General Public License as published by
7 ## the Free Software Foundation; either version 2 of the License, or
8 ## (at your option) any later version.
10 ## This program is distributed in the hope that it will be useful, but
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 ## General Public License for more details.
15 ## You should have received a copy of the GNU General Public License
16 ## along with this program; if not, write to the Free Software
17 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 ## As a special exception to the GNU General Public License, if you
20 ## distribute this file as part of a program that contains a
21 ## configuration script generated by Autoconf, you may include it under
22 ## the same distribution terms that you use for the rest of that program.
24 # serial 40 AC_PROG_LIBTOOL
25 AC_DEFUN(AC_PROG_LIBTOOL,
26 [AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
28 # Save cache, so that ltconfig can load it
31 # Actually configure libtool. ac_aux_dir is where install-sh is found.
32 CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
33 LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
34 LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" \
35 DLLTOOL="$DLLTOOL" AS="$AS" OBJDUMP="$OBJDUMP" \
36 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
37 $libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
38 || AC_MSG_ERROR([libtool configure failed])
40 # Reload cache, that may have been modified by ltconfig
43 # This can be used to rebuild libtool when needed
44 LIBTOOL_DEPS="$ac_aux_dir/ltconfig $ac_aux_dir/ltmain.sh"
46 # Always use our own libtool.
47 LIBTOOL='$(SHELL) $(top_builddir)/libtool'
50 # Redirect the config.log output again, so that the ltconfig log is not
51 # clobbered by the next message.
55 AC_DEFUN(AC_LIBTOOL_SETUP,
57 AC_REQUIRE([AC_ENABLE_SHARED])dnl
58 AC_REQUIRE([AC_ENABLE_STATIC])dnl
59 AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl
60 AC_REQUIRE([AC_CANONICAL_HOST])dnl
61 AC_REQUIRE([AC_CANONICAL_BUILD])dnl
62 AC_REQUIRE([AC_PROG_RANLIB])dnl
63 AC_REQUIRE([AC_PROG_CC])dnl
64 AC_REQUIRE([AC_PROG_LD])dnl
65 AC_REQUIRE([AC_PROG_NM])dnl
66 AC_REQUIRE([AC_PROG_LN_S])dnl
69 # Check for any special flags to pass to ltconfig.
70 libtool_flags="--cache-file=$cache_file"
71 test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
72 test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
73 test "$enable_fast_install" = no && libtool_flags="$libtool_flags --disable-fast-install"
74 test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
75 test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
76 ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN],
77 [libtool_flags="$libtool_flags --enable-dlopen"])
78 ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
79 [libtool_flags="$libtool_flags --enable-win32-dll"])
80 AC_ARG_ENABLE(libtool-lock,
81 [ --disable-libtool-lock avoid locking (might break parallel builds)])
82 test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock"
83 test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
85 # Some flags need to be propagated to the compiler or linker for good
89 # Find out which ABI we are using.
90 echo '[#]line __oline__ "configure"' > conftest.$ac_ext
91 if AC_TRY_EVAL(ac_compile); then
92 case "`/usr/bin/file conftest.o`" in
108 # On SCO OpenServer 5, we need -belf to get full-featured binaries.
109 SAVE_CFLAGS="$CFLAGS"
110 CFLAGS="$CFLAGS -belf"
111 AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
112 [AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])])
113 if test x"$lt_cv_cc_needs_belf" != x"yes"; then
114 # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
115 CFLAGS="$SAVE_CFLAGS"
119 ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
120 [*-*-cygwin* | *-*-mingw*)
121 AC_CHECK_TOOL(DLLTOOL, dlltool, false)
122 AC_CHECK_TOOL(AS, as, false)
123 AC_CHECK_TOOL(OBJDUMP, objdump, false)
129 # AC_LIBTOOL_DLOPEN - enable checks for dlopen support
130 AC_DEFUN(AC_LIBTOOL_DLOPEN, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])
132 # AC_LIBTOOL_WIN32_DLL - declare package support for building win32 dll's
133 AC_DEFUN(AC_LIBTOOL_WIN32_DLL, [AC_BEFORE([$0], [AC_LIBTOOL_SETUP])])
135 # AC_ENABLE_SHARED - implement the --enable-shared flag
136 # Usage: AC_ENABLE_SHARED[(DEFAULT)]
137 # Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
139 AC_DEFUN(AC_ENABLE_SHARED, [dnl
140 define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
141 AC_ARG_ENABLE(shared,
142 changequote(<<, >>)dnl
143 << --enable-shared[=PKGS] build shared libraries [default=>>AC_ENABLE_SHARED_DEFAULT],
145 [p=${PACKAGE-default}
147 yes) enable_shared=yes ;;
148 no) enable_shared=no ;;
151 # Look at the argument we got. We use all the common list separators.
152 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
153 for pkg in $enableval; do
154 if test "X$pkg" = "X$p"; then
161 enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl
164 # AC_DISABLE_SHARED - set the default shared flag to --disable-shared
165 AC_DEFUN(AC_DISABLE_SHARED, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
166 AC_ENABLE_SHARED(no)])
168 # AC_ENABLE_STATIC - implement the --enable-static flag
169 # Usage: AC_ENABLE_STATIC[(DEFAULT)]
170 # Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
172 AC_DEFUN(AC_ENABLE_STATIC, [dnl
173 define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
174 AC_ARG_ENABLE(static,
175 changequote(<<, >>)dnl
176 << --enable-static[=PKGS] build static libraries [default=>>AC_ENABLE_STATIC_DEFAULT],
178 [p=${PACKAGE-default}
180 yes) enable_static=yes ;;
181 no) enable_static=no ;;
184 # Look at the argument we got. We use all the common list separators.
185 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
186 for pkg in $enableval; do
187 if test "X$pkg" = "X$p"; then
194 enable_static=AC_ENABLE_STATIC_DEFAULT)dnl
197 # AC_DISABLE_STATIC - set the default static flag to --disable-static
198 AC_DEFUN(AC_DISABLE_STATIC, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
199 AC_ENABLE_STATIC(no)])
202 # AC_ENABLE_FAST_INSTALL - implement the --enable-fast-install flag
203 # Usage: AC_ENABLE_FAST_INSTALL[(DEFAULT)]
204 # Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
206 AC_DEFUN(AC_ENABLE_FAST_INSTALL, [dnl
207 define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
208 AC_ARG_ENABLE(fast-install,
209 changequote(<<, >>)dnl
210 << --enable-fast-install[=PKGS] optimize for fast installation [default=>>AC_ENABLE_FAST_INSTALL_DEFAULT],
212 [p=${PACKAGE-default}
214 yes) enable_fast_install=yes ;;
215 no) enable_fast_install=no ;;
217 enable_fast_install=no
218 # Look at the argument we got. We use all the common list separators.
219 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
220 for pkg in $enableval; do
221 if test "X$pkg" = "X$p"; then
222 enable_fast_install=yes
228 enable_fast_install=AC_ENABLE_FAST_INSTALL_DEFAULT)dnl
231 # AC_ENABLE_FAST_INSTALL - set the default to --disable-fast-install
232 AC_DEFUN(AC_DISABLE_FAST_INSTALL, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
233 AC_ENABLE_FAST_INSTALL(no)])
235 # AC_PROG_LD - find the path to the GNU or non-GNU linker
238 [ --with-gnu-ld assume the C compiler uses GNU ld [default=no]],
239 test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
240 AC_REQUIRE([AC_PROG_CC])dnl
241 AC_REQUIRE([AC_CANONICAL_HOST])dnl
242 AC_REQUIRE([AC_CANONICAL_BUILD])dnl
244 if test "$ac_cv_prog_gcc" = yes; then
245 # Check if gcc -print-prog-name=ld gives a path.
246 AC_MSG_CHECKING([for ld used by GCC])
247 ac_prog=`($CC -print-prog-name=ld) 2>&5`
249 # Accept absolute paths.
251 [\\/]* | [A-Za-z]:[\\/]*)
252 re_direlt='/[^/][^/]*/\.\./'
254 # Canonicalize the path of ld
255 ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
256 while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
257 ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
259 test -z "$LD" && LD="$ac_prog"
262 # If it fails, then pretend we aren't using GCC.
266 # If it is relative, then search for the first ld in PATH.
270 elif test "$with_gnu_ld" = yes; then
271 AC_MSG_CHECKING([for GNU ld])
273 AC_MSG_CHECKING([for non-GNU ld])
275 AC_CACHE_VAL(ac_cv_path_LD,
276 [if test -z "$LD"; then
277 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
278 for ac_dir in $PATH; do
279 test -z "$ac_dir" && ac_dir=.
280 if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
281 ac_cv_path_LD="$ac_dir/$ac_prog"
282 # Check to see if the program is GNU ld. I'd rather use --version,
283 # but apparently some GNU ld's only accept -v.
284 # Break only if it was the GNU/non-GNU ld that we prefer.
285 if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
286 test "$with_gnu_ld" != no && break
288 test "$with_gnu_ld" != yes && break
294 ac_cv_path_LD="$LD" # Let the user override the test with a path.
297 if test -n "$LD"; then
302 test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
307 AC_DEFUN(AC_PROG_LD_GNU,
308 [AC_CACHE_CHECK([if the linker ($LD) is GNU ld], ac_cv_prog_gnu_ld,
309 [# I'd rather use --version here, but apparently some GNU ld's only accept -v.
310 if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
311 ac_cv_prog_gnu_ld=yes
317 # AC_PROG_NM - find the path to a BSD-compatible name lister
319 [AC_MSG_CHECKING([for BSD-compatible nm])
320 AC_CACHE_VAL(ac_cv_path_NM,
321 [if test -n "$NM"; then
322 # Let the user override the test.
325 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
326 for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
327 test -z "$ac_dir" && ac_dir=.
328 if test -f $ac_dir/nm || test -f $ac_dir/nm$ac_exeext ; then
329 # Check to see if the nm accepts a BSD-compat flag.
330 # Adding the `sed 1q' prevents false positives on HP-UX, which says:
331 # nm: unknown option "B" ignored
332 if ($ac_dir/nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
333 ac_cv_path_NM="$ac_dir/nm -B"
335 elif ($ac_dir/nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
336 ac_cv_path_NM="$ac_dir/nm -p"
339 ac_cv_path_NM=${ac_cv_path_NM="$ac_dir/nm"} # keep the first match, but
340 continue # so that we can try to find one that supports BSD flags
345 test -z "$ac_cv_path_NM" && ac_cv_path_NM=nm
352 # AC_CHECK_LIBM - check for math library
353 AC_DEFUN(AC_CHECK_LIBM,
354 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
357 *-*-beos* | *-*-cygwin*)
358 # These system don't have libm
361 AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
362 AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
365 AC_CHECK_LIB(m, main, LIBM="-lm")
370 # AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for
371 # the libltdl convenience library, adds --enable-ltdl-convenience to
372 # the configure arguments. Note that LIBLTDL is not AC_SUBSTed, nor
373 # is AC_CONFIG_SUBDIRS called. If DIR is not provided, it is assumed
374 # to be `${top_builddir}/libltdl'. Make sure you start DIR with
375 # '${top_builddir}/' (note the single quotes!) if your package is not
376 # flat, and, if you're not using automake, define top_builddir as
377 # appropriate in the Makefiles.
378 AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
379 case "$enable_ltdl_convenience" in
380 no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
381 "") enable_ltdl_convenience=yes
382 ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
384 LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdlc.la
385 INCLTDL=ifelse($#,1,-I$1,['-I${top_builddir}/libltdl'])
388 # AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
389 # the libltdl installable library, and adds --enable-ltdl-install to
390 # the configure arguments. Note that LIBLTDL is not AC_SUBSTed, nor
391 # is AC_CONFIG_SUBDIRS called. If DIR is not provided, it is assumed
392 # to be `${top_builddir}/libltdl'. Make sure you start DIR with
393 # '${top_builddir}/' (note the single quotes!) if your package is not
394 # flat, and, if you're not using automake, define top_builddir as
395 # appropriate in the Makefiles.
396 # In the future, this macro may have to be called after AC_PROG_LIBTOOL.
397 AC_DEFUN(AC_LIBLTDL_INSTALLABLE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
398 AC_CHECK_LIB(ltdl, main,
399 [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],
400 [if test x"$enable_ltdl_install" = xno; then
401 AC_MSG_WARN([libltdl not installed, but installation disabled])
403 enable_ltdl_install=yes
406 if test x"$enable_ltdl_install" = x"yes"; then
407 ac_configure_args="$ac_configure_args --enable-ltdl-install"
408 LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdl.la
409 INCLTDL=ifelse($#,1,-I$1,['-I${top_builddir}/libltdl'])
411 ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
418 AC_DEFUN(AM_PROG_LIBTOOL, [indir([AC_PROG_LIBTOOL])])dnl
419 AC_DEFUN(AM_ENABLE_SHARED, [indir([AC_ENABLE_SHARED], $@)])dnl
420 AC_DEFUN(AM_ENABLE_STATIC, [indir([AC_ENABLE_STATIC], $@)])dnl
421 AC_DEFUN(AM_DISABLE_SHARED, [indir([AC_DISABLE_SHARED], $@)])dnl
422 AC_DEFUN(AM_DISABLE_STATIC, [indir([AC_DISABLE_STATIC], $@)])dnl
423 AC_DEFUN(AM_PROG_LD, [indir([AC_PROG_LD])])dnl
424 AC_DEFUN(AM_PROG_NM, [indir([AC_PROG_NM])])dnl
426 dnl This is just to silence aclocal about the macro not being used
427 ifelse([AC_DISABLE_FAST_INSTALL])dnl