Revert last patch for more testing.
[gcc.git] / libtool.m4
1 ## libtool.m4 - Configure libtool for the host system. -*-Shell-script-*-
2 ## Copyright 1996, 1997, 1998, 1999, 2000, 2001
3 ## Free Software Foundation, Inc.
4 ## Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
5 ##
6 ## This program is free software; you can redistribute it and/or modify
7 ## it under the terms of the GNU General Public License as published by
8 ## the Free Software Foundation; either version 2 of the License, or
9 ## (at your option) any later version.
10 ##
11 ## This program is distributed in the hope that it will be useful, but
12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 ## General Public License for more details.
15 ##
16 ## You should have received a copy of the GNU General Public License
17 ## along with this program; if not, write to the Free Software
18 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 ##
20 ## As a special exception to the GNU General Public License, if you
21 ## distribute this file as part of a program that contains a
22 ## configuration script generated by Autoconf, you may include it under
23 ## the same distribution terms that you use for the rest of that program.
24
25 # serial 46 AC_PROG_LIBTOOL
26 AC_DEFUN([AC_PROG_LIBTOOL],
27 [AC_REQUIRE([_AC_PROG_LIBTOOL])dnl
28 dnl If AC_PROG_CXX has already been expanded, run AC_LIBTOOL_CXX
29 dnl immediately, otherwise, hook it in at the end of AC_PROG_CXX.
30 AC_PROVIDE_IFELSE([AC_PROG_CXX],
31 [AC_LIBTOOL_CXX],
32 [define([AC_PROG_CXX], defn([AC_PROG_CXX])[AC_LIBTOOL_CXX
33 ])])
34
35 dnl Quote A][M_PROG_GCJ so that aclocal doesn't bring it in needlessly.
36 dnl If either AC_PROG_GCJ or A][M_PROG_GCJ have already been expanded, run
37 dnl AC_LIBTOOL_GCJ immediately, otherwise, hook it in at the end of both.
38 AC_PROVIDE_IFELSE([AC_PROG_GCJ],
39 [AC_LIBTOOL_GCJ],
40 [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
41 [AC_LIBTOOL_GCJ],
42 [AC_PROVIDE_IFELSE([LT_AC_PROG_GCJ],
43 [AC_LIBTOOL_GCJ],
44 [ifdef([AC_PROG_GCJ],
45 [define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[AC_LIBTOOL_GCJ
46 ])])
47 ifdef([A][M_PROG_GCJ],
48 [define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[AC_LIBTOOL_GCJ
49 ])])
50 ifdef([LT_AC_PROG_GCJ],
51 [define([LT_AC_PROG_GCJ], defn([LT_AC_PROG_GCJ])[AC_LIBTOOL_GCJ
52 ])])])])])])
53
54 AC_DEFUN([_AC_PROG_LIBTOOL],
55 [AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
56 AC_BEFORE([$0],[AC_LIBTOOL_CXX])dnl
57 AC_BEFORE([$0],[AC_LIBTOOL_GCJ])dnl
58
59 # Save cache, so that ltconfig can load it
60 AC_CACHE_SAVE
61
62 # Actually configure libtool. ac_aux_dir is where install-sh is found.
63 AR="$AR" LTCC="$CC" CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
64 MAGIC_CMD="$MAGIC_CMD" LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
65 LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" STRIP="$STRIP" \
66 AS="$AS" DLLTOOL="$DLLTOOL" OBJDUMP="$OBJDUMP" \
67 objext="$OBJEXT" exeext="$EXEEXT" reload_flag="$reload_flag" \
68 deplibs_check_method="$deplibs_check_method" file_magic_cmd="$file_magic_cmd" \
69 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
70 $libtool_flags --no-verify --build="$build" $ac_aux_dir/ltmain.sh $host \
71 || AC_MSG_ERROR([libtool configure failed])
72
73 # Reload cache, that may have been modified by ltconfig
74 AC_CACHE_LOAD
75
76 # This can be used to rebuild libtool when needed
77 LIBTOOL_DEPS="$ac_aux_dir/ltconfig $ac_aux_dir/ltmain.sh $ac_aux_dir/ltcf-c.sh"
78
79 # Always use our own libtool.
80 LIBTOOL='$(SHELL) $(top_builddir)/libtool'
81 AC_SUBST(LIBTOOL)dnl
82
83 # Redirect the config.log output again, so that the ltconfig log is not
84 # clobbered by the next message.
85 exec 5>>./config.log
86 ])
87
88 AC_DEFUN([AC_LIBTOOL_SETUP],
89 [AC_PREREQ(2.13)dnl
90 AC_REQUIRE([AC_ENABLE_SHARED])dnl
91 AC_REQUIRE([AC_ENABLE_STATIC])dnl
92 AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl
93 AC_REQUIRE([AC_CANONICAL_HOST])dnl
94 AC_REQUIRE([AC_CANONICAL_BUILD])dnl
95 AC_REQUIRE([AC_PROG_CC])dnl
96 AC_REQUIRE([AC_PROG_LD])dnl
97 AC_REQUIRE([AC_PROG_LD_RELOAD_FLAG])dnl
98 AC_REQUIRE([AC_PROG_NM])dnl
99 AC_REQUIRE([AC_PROG_LN_S])dnl
100 AC_REQUIRE([AC_DEPLIBS_CHECK_METHOD])dnl
101 # Autoconf 2.13's AC_OBJEXT and AC_EXEEXT macros only works for C compilers!
102 AC_REQUIRE([AC_OBJEXT])dnl
103 AC_REQUIRE([AC_EXEEXT])dnl
104 dnl
105
106 # Only perform the check for file, if the check method requires it
107 case $deplibs_check_method in
108 file_magic*)
109 if test "$file_magic_cmd" = '$MAGIC_CMD'; then
110 AC_PATH_MAGIC
111 fi
112 ;;
113 esac
114
115 AC_CHECK_TOOL(RANLIB, ranlib, :)
116 AC_CHECK_TOOL(STRIP, strip, :)
117
118 # Check for any special flags to pass to ltconfig.
119 libtool_flags="--cache-file=$cache_file"
120 test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
121 test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
122 test "$enable_fast_install" = no && libtool_flags="$libtool_flags --disable-fast-install"
123 test "$GCC" = yes && libtool_flags="$libtool_flags --with-gcc"
124 test "$lt_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
125 ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN],
126 [libtool_flags="$libtool_flags --enable-dlopen"])
127 ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
128 [libtool_flags="$libtool_flags --enable-win32-dll"])
129 AC_ARG_ENABLE(libtool-lock,
130 [ --disable-libtool-lock avoid locking (might break parallel builds)])
131 test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock"
132 test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
133
134 AC_ARG_WITH(pic,
135 [ --with-pic try to use only PIC/non-PIC objects [default=use both]],
136 pic_mode="$withval", pic_mode=default)
137 test x"$pic_mode" = xyes && libtool_flags="$libtool_flags --prefer-pic"
138 test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic"
139
140 # Some flags need to be propagated to the compiler or linker for good
141 # libtool support.
142 case $host in
143 *-*-irix6*)
144 # Find out which ABI we are using.
145 echo '[#]line __oline__ "configure"' > conftest.$ac_ext
146 if AC_TRY_EVAL(ac_compile); then
147 if test "$lt_cv_prog_gnu_ld" = yes; then
148 case `/usr/bin/file conftest.$ac_objext` in
149 *32-bit*)
150 LD="${LD-ld} -melf32bsmip"
151 ;;
152 *N32*)
153 LD="${LD-ld} -melf32bmipn32"
154 ;;
155 *64-bit*)
156 LD="${LD-ld} -melf64bmip"
157 ;;
158 esac
159 else
160 case `/usr/bin/file conftest.$ac_objext` in
161 *32-bit*)
162 LD="${LD-ld} -32"
163 ;;
164 *N32*)
165 LD="${LD-ld} -n32"
166 ;;
167 *64-bit*)
168 LD="${LD-ld} -64"
169 ;;
170 esac
171 fi
172 fi
173 rm -rf conftest*
174 ;;
175
176 ia64-*-hpux*)
177 # Find out which ABI we are using.
178 echo 'int i;' > conftest.$ac_ext
179 if AC_TRY_EVAL(ac_compile); then
180 case "`/usr/bin/file conftest.o`" in
181 *ELF-32*)
182 HPUX_IA64_MODE="32"
183 ;;
184 *ELF-64*)
185 HPUX_IA64_MODE="64"
186 ;;
187 esac
188 fi
189 rm -rf conftest*
190 ;;
191
192 x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*|s390*-*linux*|sparc*-*linux*)
193 # Find out which ABI we are using.
194 echo 'int i;' > conftest.$ac_ext
195 if AC_TRY_EVAL(ac_compile); then
196 case "`/usr/bin/file conftest.o`" in
197 *32-bit*)
198 case $host in
199 x86_64-*linux*)
200 LD="${LD-ld} -m elf_i386"
201 ;;
202 ppc64-*linux*|powerpc64-*linux*)
203 LD="${LD-ld} -m elf32ppclinux"
204 ;;
205 s390x-*linux*)
206 LD="${LD-ld} -m elf_s390"
207 ;;
208 sparc64-*linux*)
209 LD="${LD-ld} -m elf32_sparc"
210 ;;
211 esac
212 ;;
213 *64-bit*)
214 case $host in
215 x86_64-*linux*)
216 LD="${LD-ld} -m elf_x86_64"
217 ;;
218 ppc*-*linux*|powerpc*-*linux*)
219 LD="${LD-ld} -m elf64ppc"
220 ;;
221 s390*-*linux*)
222 LD="${LD-ld} -m elf64_s390"
223 ;;
224 sparc*-*linux*)
225 LD="${LD-ld} -m elf64_sparc"
226 ;;
227 esac
228 ;;
229 esac
230 fi
231 rm -rf conftest*
232 ;;
233
234 *-*-sco3.2v5*)
235 # On SCO OpenServer 5, we need -belf to get full-featured binaries.
236 SAVE_CFLAGS="$CFLAGS"
237 CFLAGS="$CFLAGS -belf"
238 AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
239 [AC_LANG_SAVE
240 AC_LANG_C
241 AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
242 AC_LANG_RESTORE])
243 if test x"$lt_cv_cc_needs_belf" != x"yes"; then
244 # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
245 CFLAGS="$SAVE_CFLAGS"
246 fi
247 ;;
248
249 ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
250 [*-*-cygwin* | *-*-mingw* | *-*-pw32*)
251 AC_CHECK_TOOL(DLLTOOL, dlltool, false)
252 AC_CHECK_TOOL(AS, as, false)
253 AC_CHECK_TOOL(OBJDUMP, objdump, false)
254
255 # recent cygwin and mingw systems supply a stub DllMain which the user
256 # can override, but on older systems we have to supply one
257 AC_CACHE_CHECK([if libtool should supply DllMain function], lt_cv_need_dllmain,
258 [AC_TRY_LINK([],
259 [extern int __attribute__((__stdcall__)) DllMain(void*, int, void*);
260 DllMain (0, 0, 0);],
261 [lt_cv_need_dllmain=no],[lt_cv_need_dllmain=yes])])
262
263 case $host/$CC in
264 *-*-cygwin*/gcc*-mno-cygwin*|*-*-mingw*)
265 # old mingw systems require "-dll" to link a DLL, while more recent ones
266 # require "-mdll"
267 SAVE_CFLAGS="$CFLAGS"
268 CFLAGS="$CFLAGS -mdll"
269 AC_CACHE_CHECK([how to link DLLs], lt_cv_cc_dll_switch,
270 [AC_TRY_LINK([], [], [lt_cv_cc_dll_switch=-mdll],[lt_cv_cc_dll_switch=-dll])])
271 CFLAGS="$SAVE_CFLAGS" ;;
272 *-*-cygwin* | *-*-pw32*)
273 # cygwin systems need to pass --dll to the linker, and not link
274 # crt.o which will require a WinMain@16 definition.
275 lt_cv_cc_dll_switch="-Wl,--dll -nostartfiles" ;;
276 esac
277 ;;
278 ])
279 esac
280 ])
281
282 # AC_LIBTOOL_DLOPEN - enable checks for dlopen support
283 AC_DEFUN([AC_LIBTOOL_DLOPEN], [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])
284
285 # AC_LIBTOOL_WIN32_DLL - declare package support for building win32 dll's
286 AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [AC_BEFORE([$0], [AC_LIBTOOL_SETUP])])
287
288 # AC_ENABLE_SHARED - implement the --enable-shared flag
289 # Usage: AC_ENABLE_SHARED[(DEFAULT)]
290 # Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
291 # `yes'.
292 AC_DEFUN([AC_ENABLE_SHARED],
293 [define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
294 AC_ARG_ENABLE(shared,
295 changequote(<<, >>)dnl
296 << --enable-shared[=PKGS] build shared libraries [default=>>AC_ENABLE_SHARED_DEFAULT],
297 changequote([, ])dnl
298 [p=${PACKAGE-default}
299 case $enableval in
300 yes) enable_shared=yes ;;
301 no) enable_shared=no ;;
302 *)
303 enable_shared=no
304 # Look at the argument we got. We use all the common list separators.
305 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
306 for pkg in $enableval; do
307 if test "X$pkg" = "X$p"; then
308 enable_shared=yes
309 fi
310 done
311 IFS="$ac_save_ifs"
312 ;;
313 esac],
314 enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl
315 ])
316
317 # AC_DISABLE_SHARED - set the default shared flag to --disable-shared
318 AC_DEFUN([AC_DISABLE_SHARED], [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
319 AC_ENABLE_SHARED(no)])
320
321 # AC_ENABLE_STATIC - implement the --enable-static flag
322 # Usage: AC_ENABLE_STATIC[(DEFAULT)]
323 # Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
324 # `yes'.
325 AC_DEFUN([AC_ENABLE_STATIC],
326 [define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
327 AC_ARG_ENABLE(static,
328 changequote(<<, >>)dnl
329 << --enable-static[=PKGS] build static libraries [default=>>AC_ENABLE_STATIC_DEFAULT],
330 changequote([, ])dnl
331 [p=${PACKAGE-default}
332 case $enableval in
333 yes) enable_static=yes ;;
334 no) enable_static=no ;;
335 *)
336 enable_static=no
337 # Look at the argument we got. We use all the common list separators.
338 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
339 for pkg in $enableval; do
340 if test "X$pkg" = "X$p"; then
341 enable_static=yes
342 fi
343 done
344 IFS="$ac_save_ifs"
345 ;;
346 esac],
347 enable_static=AC_ENABLE_STATIC_DEFAULT)dnl
348 ])
349
350 # AC_DISABLE_STATIC - set the default static flag to --disable-static
351 AC_DEFUN([AC_DISABLE_STATIC],
352 [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
353 AC_ENABLE_STATIC(no)])
354
355
356 # AC_ENABLE_FAST_INSTALL - implement the --enable-fast-install flag
357 # Usage: AC_ENABLE_FAST_INSTALL[(DEFAULT)]
358 # Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
359 # `yes'.
360 AC_DEFUN([AC_ENABLE_FAST_INSTALL],
361 [define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
362 AC_ARG_ENABLE(fast-install,
363 changequote(<<, >>)dnl
364 << --enable-fast-install[=PKGS] optimize for fast installation [default=>>AC_ENABLE_FAST_INSTALL_DEFAULT],
365 changequote([, ])dnl
366 [p=${PACKAGE-default}
367 case $enableval in
368 yes) enable_fast_install=yes ;;
369 no) enable_fast_install=no ;;
370 *)
371 enable_fast_install=no
372 # Look at the argument we got. We use all the common list separators.
373 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
374 for pkg in $enableval; do
375 if test "X$pkg" = "X$p"; then
376 enable_fast_install=yes
377 fi
378 done
379 IFS="$ac_save_ifs"
380 ;;
381 esac],
382 enable_fast_install=AC_ENABLE_FAST_INSTALL_DEFAULT)dnl
383 ])
384
385 # AC_DISABLE_FAST_INSTALL - set the default to --disable-fast-install
386 AC_DEFUN([AC_DISABLE_FAST_INSTALL],
387 [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
388 AC_ENABLE_FAST_INSTALL(no)])
389
390 # AC_LIBTOOL_PICMODE - implement the --with-pic flag
391 # Usage: AC_LIBTOOL_PICMODE[(MODE)]
392 # Where MODE is either `yes' or `no'. If omitted, it defaults to
393 # `both'.
394 AC_DEFUN([AC_LIBTOOL_PICMODE],
395 [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
396 pic_mode=ifelse($#,1,$1,default)])
397
398
399 # AC_PATH_TOOL_PREFIX - find a file program which can recognise shared library
400 AC_DEFUN([AC_PATH_TOOL_PREFIX],
401 [AC_MSG_CHECKING([for $1])
402 AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
403 [case $MAGIC_CMD in
404 /*)
405 lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
406 ;;
407 ?:/*)
408 lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a dos path.
409 ;;
410 *)
411 ac_save_MAGIC_CMD="$MAGIC_CMD"
412 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
413 dnl $ac_dummy forces splitting on constant user-supplied paths.
414 dnl POSIX.2 word splitting is done only on the output of word expansions,
415 dnl not every word. This closes a longstanding sh security hole.
416 ac_dummy="ifelse([$2], , $PATH, [$2])"
417 for ac_dir in $ac_dummy; do
418 test -z "$ac_dir" && ac_dir=.
419 if test -f $ac_dir/$1; then
420 lt_cv_path_MAGIC_CMD="$ac_dir/$1"
421 if test -n "$file_magic_test_file"; then
422 case $deplibs_check_method in
423 "file_magic "*)
424 file_magic_regex="`expr \"$deplibs_check_method\" : \"file_magic \(.*\)\"`"
425 MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
426 if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
427 egrep "$file_magic_regex" > /dev/null; then
428 :
429 else
430 cat <<EOF 1>&2
431
432 *** Warning: the command libtool uses to detect shared libraries,
433 *** $file_magic_cmd, produces output that libtool cannot recognize.
434 *** The result is that libtool may fail to recognize shared libraries
435 *** as such. This will affect the creation of libtool libraries that
436 *** depend on shared libraries, but programs linked with such libtool
437 *** libraries will work regardless of this problem. Nevertheless, you
438 *** may want to report the problem to your system manager and/or to
439 *** bug-libtool@gnu.org
440
441 EOF
442 fi ;;
443 esac
444 fi
445 break
446 fi
447 done
448 IFS="$ac_save_ifs"
449 MAGIC_CMD="$ac_save_MAGIC_CMD"
450 ;;
451 esac])
452 MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
453 if test -n "$MAGIC_CMD"; then
454 AC_MSG_RESULT($MAGIC_CMD)
455 else
456 AC_MSG_RESULT(no)
457 fi
458 ])
459
460
461 # AC_PATH_MAGIC - find a file program which can recognise a shared library
462 AC_DEFUN([AC_PATH_MAGIC],
463 [AC_REQUIRE([AC_CHECK_TOOL_PREFIX])dnl
464 AC_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin:$PATH)
465 if test -z "$lt_cv_path_MAGIC_CMD"; then
466 if test -n "$ac_tool_prefix"; then
467 AC_PATH_TOOL_PREFIX(file, /usr/bin:$PATH)
468 else
469 MAGIC_CMD=:
470 fi
471 fi
472 ])
473
474
475 # AC_PROG_LD - find the path to the GNU or non-GNU linker
476 AC_DEFUN([AC_PROG_LD],
477 [AC_ARG_WITH(gnu-ld,
478 [ --with-gnu-ld assume the C compiler uses GNU ld [default=no]],
479 test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
480 AC_REQUIRE([AC_PROG_CC])dnl
481 AC_REQUIRE([AC_CANONICAL_HOST])dnl
482 AC_REQUIRE([AC_CANONICAL_BUILD])dnl
483 ac_prog=ld
484 if test "$GCC" = yes; then
485 # Check if gcc -print-prog-name=ld gives a path.
486 AC_MSG_CHECKING([for ld used by GCC])
487 case $host in
488 *-*-mingw*)
489 # gcc leaves a trailing carriage return which upsets mingw
490 ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
491 *)
492 ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
493 esac
494 case $ac_prog in
495 # Accept absolute paths.
496 [[\\/]* | [A-Za-z]:[\\/]*)]
497 re_direlt=['/[^/][^/]*/\.\./']
498 # Canonicalize the path of ld
499 ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
500 while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
501 ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
502 done
503 test -z "$LD" && LD="$ac_prog"
504 ;;
505 "")
506 # If it fails, then pretend we aren't using GCC.
507 ac_prog=ld
508 ;;
509 *)
510 # If it is relative, then search for the first ld in PATH.
511 with_gnu_ld=unknown
512 ;;
513 esac
514 elif test "$with_gnu_ld" = yes; then
515 AC_MSG_CHECKING([for GNU ld])
516 else
517 AC_MSG_CHECKING([for non-GNU ld])
518 fi
519 AC_CACHE_VAL(lt_cv_path_LD,
520 [if test -z "$LD"; then
521 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
522 for ac_dir in $PATH; do
523 test -z "$ac_dir" && ac_dir=.
524 if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
525 lt_cv_path_LD="$ac_dir/$ac_prog"
526 # Check to see if the program is GNU ld. I'd rather use --version,
527 # but apparently some GNU ld's only accept -v.
528 # Break only if it was the GNU/non-GNU ld that we prefer.
529 if "$lt_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
530 test "$with_gnu_ld" != no && break
531 else
532 test "$with_gnu_ld" != yes && break
533 fi
534 fi
535 done
536 IFS="$ac_save_ifs"
537 else
538 lt_cv_path_LD="$LD" # Let the user override the test with a path.
539 fi])
540 LD="$lt_cv_path_LD"
541 if test -n "$LD"; then
542 AC_MSG_RESULT($LD)
543 else
544 AC_MSG_RESULT(no)
545 fi
546 test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
547 AC_PROG_LD_GNU
548 ])
549
550 AC_DEFUN([AC_PROG_LD_GNU],
551 [AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
552 [# I'd rather use --version here, but apparently some GNU ld's only accept -v.
553 if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
554 lt_cv_prog_gnu_ld=yes
555 else
556 lt_cv_prog_gnu_ld=no
557 fi])
558 with_gnu_ld=$lt_cv_prog_gnu_ld
559 ])
560
561 # AC_PROG_LD_RELOAD_FLAG - find reload flag for linker
562 # -- PORTME Some linkers may need a different reload flag.
563 AC_DEFUN([AC_PROG_LD_RELOAD_FLAG],
564 [AC_CACHE_CHECK([for $LD option to reload object files], lt_cv_ld_reload_flag,
565 [lt_cv_ld_reload_flag='-r'])
566 reload_flag=$lt_cv_ld_reload_flag
567 test -n "$reload_flag" && reload_flag=" $reload_flag"
568 ])
569
570 # AC_DEPLIBS_CHECK_METHOD - how to check for library dependencies
571 # -- PORTME fill in with the dynamic library characteristics
572 AC_DEFUN([AC_DEPLIBS_CHECK_METHOD],
573 [AC_CACHE_CHECK([how to recognise dependant libraries],
574 lt_cv_deplibs_check_method,
575 [lt_cv_file_magic_cmd='$MAGIC_CMD'
576 lt_cv_file_magic_test_file=
577 lt_cv_deplibs_check_method='unknown'
578 # Need to set the preceding variable on all platforms that support
579 # interlibrary dependencies.
580 # 'none' -- dependencies not supported.
581 # `unknown' -- same as none, but documents that we really don't know.
582 # 'pass_all' -- all dependencies passed with no checks.
583 # 'test_compile' -- check by making test program.
584 # 'file_magic [regex]' -- check by looking for files in library path
585 # which responds to the $file_magic_cmd with a given egrep regex.
586 # If you have `file' or equivalent on your system and you're not sure
587 # whether `pass_all' will *always* work, you probably want this one.
588
589 case $host_os in
590 aix*)
591 lt_cv_deplibs_check_method=pass_all
592 ;;
593
594 beos*)
595 lt_cv_deplibs_check_method=pass_all
596 ;;
597
598 bsdi4*)
599 lt_cv_deplibs_check_method=['file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)']
600 lt_cv_file_magic_cmd='/usr/bin/file -L'
601 lt_cv_file_magic_test_file=/shlib/libc.so
602 ;;
603
604 cygwin* | mingw* |pw32*)
605 lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
606 lt_cv_file_magic_cmd='$OBJDUMP -f'
607 ;;
608
609 darwin* | rhapsody*)
610 # this will be overwritten by pass_all, but leave it in just in case
611 lt_cv_deplibs_check_method='file_magic Mach-O dynamically linked shared library'
612 lt_cv_file_magic_cmd='/usr/bin/file -L'
613 case "$host_os" in
614 rhapsody* | darwin1.[012])
615 lt_cv_file_magic_test_file='/System/Library/Frameworks/System.framework/System'
616 ;;
617 *) # Darwin 1.3 on
618 lt_cv_file_magic_test_file='/usr/lib/libSystem.dylib'
619 ;;
620 esac
621 lt_cv_deplibs_check_method=pass_all
622 ;;
623
624 freebsd* | kfreebsd*-gnu)
625 if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
626 case $host_cpu in
627 i*86 )
628 # Not sure whether the presence of OpenBSD here was a mistake.
629 # Let's accept both of them until this is cleared up.
630 lt_cv_deplibs_check_method=['file_magic (FreeBSD|OpenBSD)/i[3-9]86 (compact )?demand paged shared library']
631 lt_cv_file_magic_cmd=/usr/bin/file
632 lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
633 ;;
634 esac
635 else
636 lt_cv_deplibs_check_method=pass_all
637 fi
638 ;;
639
640 gnu*)
641 lt_cv_deplibs_check_method=pass_all
642 ;;
643
644 hpux10.20*|hpux11*)
645 case $host_cpu in
646 hppa*)
647 [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9].[0-9]) shared library']
648 lt_cv_file_magic_cmd=/usr/bin/file
649 lt_cv_file_magic_test_file=/usr/lib/libc.sl
650 ;;
651 ia64*)
652 [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64']
653 lt_cv_file_magic_cmd=/usr/bin/file
654 lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
655 ;;
656 esac
657 ;;
658
659 irix5* | irix6*)
660 case $host_os in
661 irix5*)
662 # this will be overridden with pass_all, but let us keep it just in case
663 lt_cv_deplibs_check_method="file_magic ELF 32-bit MSB dynamic lib MIPS - version 1"
664 ;;
665 *)
666 case $LD in
667 *-32|*"-32 ") libmagic=32-bit;;
668 *-n32|*"-n32 ") libmagic=N32;;
669 *-64|*"-64 ") libmagic=64-bit;;
670 *) libmagic=never-match;;
671 esac
672 # this will be overridden with pass_all, but let us keep it just in case
673 lt_cv_deplibs_check_method=["file_magic ELF ${libmagic} MSB mips-[1234] dynamic lib MIPS - version 1"]
674 ;;
675 esac
676 lt_cv_file_magic_test_file=`echo /lib${libsuff}/libc.so*`
677 lt_cv_deplibs_check_method=pass_all
678 ;;
679
680 # This must be Linux ELF.
681 linux-gnu*)
682 lt_cv_deplibs_check_method=pass_all
683 ;;
684
685 netbsd* | knetbsd*-gnu)
686 if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
687 [lt_cv_deplibs_check_method='match_pattern /lib[^/\.]+\.so\.[0-9]+\.[0-9]+$']
688 else
689 [lt_cv_deplibs_check_method='match_pattern /lib[^/\.]+\.so$']
690 fi
691 ;;
692
693 newsos6)
694 [lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)']
695 lt_cv_file_magic_cmd=/usr/bin/file
696 lt_cv_file_magic_test_file=/usr/lib/libnls.so
697 ;;
698
699 osf3* | osf4* | osf5*)
700 # this will be overridden with pass_all, but let us keep it just in case
701 lt_cv_deplibs_check_method='file_magic COFF format alpha shared library'
702 lt_cv_file_magic_test_file=/shlib/libc.so
703 lt_cv_deplibs_check_method=pass_all
704 ;;
705
706 sco3.2v5*)
707 lt_cv_deplibs_check_method=pass_all
708 ;;
709
710 solaris*)
711 lt_cv_deplibs_check_method=pass_all
712 lt_cv_file_magic_test_file=/lib/libc.so
713 ;;
714
715 [sysv5uw[78]* | sysv4*uw2*)]
716 lt_cv_deplibs_check_method=pass_all
717 ;;
718
719 sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
720 case $host_vendor in
721 ncr)
722 lt_cv_deplibs_check_method=pass_all
723 ;;
724 motorola)
725 lt_cv_deplibs_check_method=['file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]']
726 lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
727 ;;
728 esac
729 ;;
730 esac
731 ])
732 file_magic_cmd=$lt_cv_file_magic_cmd
733 deplibs_check_method=$lt_cv_deplibs_check_method
734 ])
735
736
737 # AC_PROG_NM - find the path to a BSD-compatible name lister
738 AC_DEFUN([AC_PROG_NM],
739 [AC_MSG_CHECKING([for BSD-compatible nm])
740 AC_CACHE_VAL(lt_cv_path_NM,
741 [if test -n "$NM"; then
742 # Let the user override the test.
743 lt_cv_path_NM="$NM"
744 else
745 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
746 for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
747 test -z "$ac_dir" && ac_dir=.
748 tmp_nm=$ac_dir/${ac_tool_prefix}nm
749 if test -f $tmp_nm || test -f $tmp_nm$ac_exeext ; then
750 # Check to see if the nm accepts a BSD-compat flag.
751 # Adding the `sed 1q' prevents false positives on HP-UX, which says:
752 # nm: unknown option "B" ignored
753 # Tru64's nm complains that /dev/null is an invalid object file
754 if ($tmp_nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep '(/dev/null|Invalid file or object type)' >/dev/null; then
755 lt_cv_path_NM="$tmp_nm -B"
756 break
757 elif ($tmp_nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
758 lt_cv_path_NM="$tmp_nm -p"
759 break
760 else
761 lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
762 continue # so that we can try to find one that supports BSD flags
763 fi
764 fi
765 done
766 IFS="$ac_save_ifs"
767 test -z "$lt_cv_path_NM" && lt_cv_path_NM=nm
768 fi])
769 NM="$lt_cv_path_NM"
770 AC_MSG_RESULT([$NM])
771 ])
772
773 # AC_CHECK_LIBM - check for math library
774 AC_DEFUN([AC_CHECK_LIBM],
775 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
776 LIBM=
777 case $host in
778 *-*-beos* | *-*-cygwin* | *-*-pw32* | *-*-darwin*)
779 # These system don't have libm
780 # on darwin the libm is a symbolic link to libSystem.dylib
781 ;;
782 *-ncr-sysv4.3*)
783 AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
784 AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
785 ;;
786 *)
787 AC_CHECK_LIB(m, main, LIBM="-lm")
788 ;;
789 esac
790 ])
791
792 # AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for
793 # the libltdl convenience library and INCLTDL to the include flags for
794 # the libltdl header and adds --enable-ltdl-convenience to the
795 # configure arguments. Note that LIBLTDL and INCLTDL are not
796 # AC_SUBSTed, nor is AC_CONFIG_SUBDIRS called. If DIR is not
797 # provided, it is assumed to be `libltdl'. LIBLTDL will be prefixed
798 # with '${top_builddir}/' and INCLTDL will be prefixed with
799 # '${top_srcdir}/' (note the single quotes!). If your package is not
800 # flat and you're not using automake, define top_builddir and
801 # top_srcdir appropriately in the Makefiles.
802 AC_DEFUN([AC_LIBLTDL_CONVENIENCE],
803 [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
804 case $enable_ltdl_convenience in
805 no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
806 "") enable_ltdl_convenience=yes
807 ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
808 esac
809 LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdlc.la
810 INCLTDL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
811 ])
812
813 # AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
814 # the libltdl installable library and INCLTDL to the include flags for
815 # the libltdl header and adds --enable-ltdl-install to the configure
816 # arguments. Note that LIBLTDL and INCLTDL are not AC_SUBSTed, nor is
817 # AC_CONFIG_SUBDIRS called. If DIR is not provided and an installed
818 # libltdl is not found, it is assumed to be `libltdl'. LIBLTDL will
819 # be prefixed with '${top_builddir}/' and INCLTDL will be prefixed
820 # with '${top_srcdir}/' (note the single quotes!). If your package is
821 # not flat and you're not using automake, define top_builddir and
822 # top_srcdir appropriately in the Makefiles.
823 # In the future, this macro may have to be called after AC_PROG_LIBTOOL.
824 AC_DEFUN([AC_LIBLTDL_INSTALLABLE],
825 [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
826 AC_CHECK_LIB(ltdl, main,
827 [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],
828 [if test x"$enable_ltdl_install" = xno; then
829 AC_MSG_WARN([libltdl not installed, but installation disabled])
830 else
831 enable_ltdl_install=yes
832 fi
833 ])
834 if test x"$enable_ltdl_install" = x"yes"; then
835 ac_configure_args="$ac_configure_args --enable-ltdl-install"
836 LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdl.la
837 INCLTDL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
838 else
839 ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
840 LIBLTDL="-lltdl"
841 INCLTDL=
842 fi
843 ])
844
845 # If this macro is not defined by Autoconf, define it here.
846 ifdef([AC_PROVIDE_IFELSE],
847 [],
848 [define([AC_PROVIDE_IFELSE],
849 [ifdef([AC_PROVIDE_$1],
850 [$2], [$3])])])
851
852 # AC_LIBTOOL_CXX - enable support for C++ libraries
853 AC_DEFUN([AC_LIBTOOL_CXX], [AC_REQUIRE([_AC_LIBTOOL_CXX])])
854
855 AC_DEFUN([_AC_LIBTOOL_CXX],
856 [AC_REQUIRE([AC_PROG_CXX])
857 AC_REQUIRE([AC_PROG_CXXCPP])
858 LIBTOOL_DEPS=$LIBTOOL_DEPS" $ac_aux_dir/ltcf-cxx.sh"
859 lt_save_CC="$CC"
860 lt_save_CFLAGS="$CFLAGS"
861 dnl Make sure LTCC is set to the C compiler, i.e. set LTCC before CC
862 dnl is set to the C++ compiler.
863 AR="$AR" LTCC="$CC" CC="$CXX" CXX="$CXX" CFLAGS="$CXXFLAGS" CPPFLAGS="$CPPFLAGS" \
864 MAGIC_CMD="$MAGIC_CMD" LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
865 LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" STRIP="$STRIP" \
866 AS="$AS" DLLTOOL="$DLLTOOL" OBJDUMP="$OBJDUMP" \
867 objext="$OBJEXT" exeext="$EXEEXT" reload_flag="$reload_flag" \
868 deplibs_check_method="$deplibs_check_method" \
869 file_magic_cmd="$file_magic_cmd" \
870 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig -o libtool $libtool_flags \
871 --build="$build" --add-tag=CXX $ac_aux_dir/ltcf-cxx.sh $host \
872 || AC_MSG_ERROR([libtool tag configuration failed])
873 CC="$lt_save_CC"
874 CFLAGS="$lt_save_CFLAGS"
875
876 # Redirect the config.log output again, so that the ltconfig log is not
877 # clobbered by the next message.
878 exec 5>>./config.log
879 ])
880
881 # AC_LIBTOOL_GCJ - enable support for GCJ libraries
882 AC_DEFUN([AC_LIBTOOL_GCJ],[AC_REQUIRE([_AC_LIBTOOL_GCJ])])
883
884 AC_DEFUN([_AC_LIBTOOL_GCJ],
885 [AC_REQUIRE([AC_PROG_LIBTOOL])
886 AC_PROVIDE_IFELSE([AC_PROG_GCJ],[],
887 [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],[],
888 [AC_PROVIDE_IFELSE([LT_AC_PROG_GCJ],[],
889 [ifdef([AC_PROG_GCJ],[AC_REQUIRE([AC_PROG_GCJ])],
890 [ifdef([A][M_PROG_GCJ],[AC_REQUIRE([A][M_PROG_GCJ])],
891 [AC_REQUIRE([A][C_PROG_GCJ_OR_A][M_PROG_GCJ])])])])])])
892 LIBTOOL_DEPS=$LIBTOOL_DEPS" $ac_aux_dir/ltcf-gcj.sh"
893 lt_save_CC="$CC"
894 lt_save_CFLAGS="$CFLAGS"
895 dnl Make sure LTCC is set to the C compiler, i.e. set LTCC before CC
896 dnl is set to the C++ compiler.
897 AR="$AR" LTCC="$CC" CC="$GCJ" CFLAGS="$GCJFLAGS" CPPFLAGS="$CPPFLAGS" \
898 MAGIC_CMD="$MAGIC_CMD" LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
899 LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" STRIP="$STRIP" \
900 AS="$AS" DLLTOOL="$DLLTOOL" OBJDUMP="$OBJDUMP" \
901 objext="$OBJEXT" exeext="$EXEEXT" reload_flag="$reload_flag" \
902 deplibs_check_method="$deplibs_check_method" \
903 file_magic_cmd="$file_magic_cmd" \
904 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig -o libtool $libtool_flags \
905 --build="$build" --add-tag=GCJ $ac_aux_dir/ltcf-gcj.sh $host \
906 || AC_MSG_ERROR([libtool tag configuration failed])
907 CC="$lt_save_CC"
908 CFLAGS="$lt_save_CFLAGS"
909
910 # Redirect the config.log output again, so that the ltconfig log is not
911 # clobbered by the next message.
912 exec 5>>./config.log
913 ])
914
915 dnl old names
916 AC_DEFUN([AM_PROG_LIBTOOL], [AC_PROG_LIBTOOL])
917 AC_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)])
918 AC_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)])
919 AC_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
920 AC_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
921 AC_DEFUN([AM_PROG_LD], [AC_PROG_LD])
922 AC_DEFUN([AM_PROG_NM], [AC_PROG_NM])
923
924 dnl This is just to silence aclocal about the macro not being used
925 ifelse([AC_DISABLE_FAST_INSTALL])dnl
926
927 AC_DEFUN([LT_AC_PROG_GCJ],
928 [AC_CHECK_TOOL(GCJ, gcj, no)
929 test "x${GCJFLAGS+set}" = xset || GCJFLAGS="-g -O2"
930 AC_SUBST(GCJFLAGS)
931 ])