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Updated libtool to version 2.2.6a
author Sam Lantinga <slouken@libsdl.org>
date Sun, 04 Oct 2009 22:31:25 +0000
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4276:0e7b63f8ac75 4277:803eeeeaa8a0
1 ##############################################################################
2 # ltdl.m4 - Configure ltdl for the target system. -*-Autoconf-*-
3 #
4 # Copyright (C) 1999-2006, 2007, 2008 Free Software Foundation, Inc.
5 # Written by Thomas Tanner, 1999
6 #
7 # This file is free software; the Free Software Foundation gives
8 # unlimited permission to copy and/or distribute it, with or without
9 # modifications, as long as this notice is preserved.
10
11 # serial 17 LTDL_INIT
12
13 # LT_CONFIG_LTDL_DIR(DIRECTORY, [LTDL-MODE])
14 # ------------------------------------------
15 # DIRECTORY contains the libltdl sources. It is okay to call this
16 # function multiple times, as long as the same DIRECTORY is always given.
17 AC_DEFUN([LT_CONFIG_LTDL_DIR],
18 [AC_BEFORE([$0], [LTDL_INIT])
19 _$0($*)
20 ])# LT_CONFIG_LTDL_DIR
21
22 # We break this out into a separate macro, so that we can call it safely
23 # internally without being caught accidentally by the sed scan in libtoolize.
24 m4_defun([_LT_CONFIG_LTDL_DIR],
25 [dnl remove trailing slashes
26 m4_pushdef([_ARG_DIR], m4_bpatsubst([$1], [/*$]))
27 m4_case(_LTDL_DIR,
28 [], [dnl only set lt_ltdl_dir if _ARG_DIR is not simply `.'
29 m4_if(_ARG_DIR, [.],
30 [],
31 [m4_define([_LTDL_DIR], _ARG_DIR)
32 _LT_SHELL_INIT([lt_ltdl_dir=']_ARG_DIR['])])],
33 [m4_if(_ARG_DIR, _LTDL_DIR,
34 [],
35 [m4_fatal([multiple libltdl directories: `]_LTDL_DIR[', `]_ARG_DIR['])])])
36 m4_popdef([_ARG_DIR])
37 ])# _LT_CONFIG_LTDL_DIR
38
39 # Initialise:
40 m4_define([_LTDL_DIR], [])
41
42
43 # _LT_BUILD_PREFIX
44 # ----------------
45 # If Autoconf is new enough, expand to `${top_build_prefix}', otherwise
46 # to `${top_builddir}/'.
47 m4_define([_LT_BUILD_PREFIX],
48 [m4_ifdef([AC_AUTOCONF_VERSION],
49 [m4_if(m4_version_compare(m4_defn([AC_AUTOCONF_VERSION]), [2.62]),
50 [-1], [m4_ifdef([_AC_HAVE_TOP_BUILD_PREFIX],
51 [${top_build_prefix}],
52 [${top_builddir}/])],
53 [${top_build_prefix}])],
54 [${top_builddir}/])[]dnl
55 ])
56
57
58 # LTDL_CONVENIENCE
59 # ----------------
60 # sets LIBLTDL to the link flags for the libltdl convenience library and
61 # LTDLINCL to the include flags for the libltdl header and adds
62 # --enable-ltdl-convenience to the configure arguments. Note that
63 # AC_CONFIG_SUBDIRS is not called here. LIBLTDL will be prefixed with
64 # '${top_build_prefix}' if available, otherwise with '${top_builddir}/',
65 # and LTDLINCL will be prefixed with '${top_srcdir}/' (note the single
66 # quotes!). If your package is not flat and you're not using automake,
67 # define top_build_prefix, top_builddir, and top_srcdir appropriately
68 # in your Makefiles.
69 AC_DEFUN([LTDL_CONVENIENCE],
70 [AC_BEFORE([$0], [LTDL_INIT])dnl
71 dnl Although the argument is deprecated and no longer documented,
72 dnl LTDL_CONVENIENCE used to take a DIRECTORY orgument, if we have one
73 dnl here make sure it is the same as any other declaration of libltdl's
74 dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
75 dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
76 m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
77 _$0()
78 ])# LTDL_CONVENIENCE
79
80 # AC_LIBLTDL_CONVENIENCE accepted a directory argument in older libtools,
81 # now we have LT_CONFIG_LTDL_DIR:
82 AU_DEFUN([AC_LIBLTDL_CONVENIENCE],
83 [_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
84 _LTDL_CONVENIENCE])
85
86 dnl aclocal-1.4 backwards compatibility:
87 dnl AC_DEFUN([AC_LIBLTDL_CONVENIENCE], [])
88
89
90 # _LTDL_CONVENIENCE
91 # -----------------
92 # Code shared by LTDL_CONVENIENCE and LTDL_INIT([convenience]).
93 m4_defun([_LTDL_CONVENIENCE],
94 [case $enable_ltdl_convenience in
95 no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
96 "") enable_ltdl_convenience=yes
97 ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
98 esac
99 LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdlc.la"
100 LTDLDEPS=$LIBLTDL
101 LTDLINCL='-I${top_srcdir}'"${lt_ltdl_dir+/$lt_ltdl_dir}"
102
103 AC_SUBST([LIBLTDL])
104 AC_SUBST([LTDLDEPS])
105 AC_SUBST([LTDLINCL])
106
107 # For backwards non-gettext consistent compatibility...
108 INCLTDL="$LTDLINCL"
109 AC_SUBST([INCLTDL])
110 ])# _LTDL_CONVENIENCE
111
112
113 # LTDL_INSTALLABLE
114 # ----------------
115 # sets LIBLTDL to the link flags for the libltdl installable library
116 # and LTDLINCL to the include flags for the libltdl header and adds
117 # --enable-ltdl-install to the configure arguments. Note that
118 # AC_CONFIG_SUBDIRS is not called from here. If an installed libltdl
119 # is not found, LIBLTDL will be prefixed with '${top_build_prefix}' if
120 # available, otherwise with '${top_builddir}/', and LTDLINCL will be
121 # prefixed with '${top_srcdir}/' (note the single quotes!). If your
122 # package is not flat and you're not using automake, define top_build_prefix,
123 # top_builddir, and top_srcdir appropriately in your Makefiles.
124 # In the future, this macro may have to be called after LT_INIT.
125 AC_DEFUN([LTDL_INSTALLABLE],
126 [AC_BEFORE([$0], [LTDL_INIT])dnl
127 dnl Although the argument is deprecated and no longer documented,
128 dnl LTDL_INSTALLABLE used to take a DIRECTORY orgument, if we have one
129 dnl here make sure it is the same as any other declaration of libltdl's
130 dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
131 dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
132 m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
133 _$0()
134 ])# LTDL_INSTALLABLE
135
136 # AC_LIBLTDL_INSTALLABLE accepted a directory argument in older libtools,
137 # now we have LT_CONFIG_LTDL_DIR:
138 AU_DEFUN([AC_LIBLTDL_INSTALLABLE],
139 [_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
140 _LTDL_INSTALLABLE])
141
142 dnl aclocal-1.4 backwards compatibility:
143 dnl AC_DEFUN([AC_LIBLTDL_INSTALLABLE], [])
144
145
146 # _LTDL_INSTALLABLE
147 # -----------------
148 # Code shared by LTDL_INSTALLABLE and LTDL_INIT([installable]).
149 m4_defun([_LTDL_INSTALLABLE],
150 [if test -f $prefix/lib/libltdl.la; then
151 lt_save_LDFLAGS="$LDFLAGS"
152 LDFLAGS="-L$prefix/lib $LDFLAGS"
153 AC_CHECK_LIB([ltdl], [lt_dlinit], [lt_lib_ltdl=yes])
154 LDFLAGS="$lt_save_LDFLAGS"
155 if test x"${lt_lib_ltdl-no}" = xyes; then
156 if test x"$enable_ltdl_install" != xyes; then
157 # Don't overwrite $prefix/lib/libltdl.la without --enable-ltdl-install
158 AC_MSG_WARN([not overwriting libltdl at $prefix, force with `--enable-ltdl-install'])
159 enable_ltdl_install=no
160 fi
161 elif test x"$enable_ltdl_install" = xno; then
162 AC_MSG_WARN([libltdl not installed, but installation disabled])
163 fi
164 fi
165
166 # If configure.ac declared an installable ltdl, and the user didn't override
167 # with --disable-ltdl-install, we will install the shipped libltdl.
168 case $enable_ltdl_install in
169 no) ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
170 LIBLTDL="-lltdl"
171 LTDLDEPS=
172 LTDLINCL=
173 ;;
174 *) enable_ltdl_install=yes
175 ac_configure_args="$ac_configure_args --enable-ltdl-install"
176 LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdl.la"
177 LTDLDEPS=$LIBLTDL
178 LTDLINCL='-I${top_srcdir}'"${lt_ltdl_dir+/$lt_ltdl_dir}"
179 ;;
180 esac
181
182 AC_SUBST([LIBLTDL])
183 AC_SUBST([LTDLDEPS])
184 AC_SUBST([LTDLINCL])
185
186 # For backwards non-gettext consistent compatibility...
187 INCLTDL="$LTDLINCL"
188 AC_SUBST([INCLTDL])
189 ])# LTDL_INSTALLABLE
190
191
192 # _LTDL_MODE_DISPATCH
193 # -------------------
194 m4_define([_LTDL_MODE_DISPATCH],
195 [dnl If _LTDL_DIR is `.', then we are configuring libltdl itself:
196 m4_if(_LTDL_DIR, [],
197 [],
198 dnl if _LTDL_MODE was not set already, the default value is `subproject':
199 [m4_case(m4_default(_LTDL_MODE, [subproject]),
200 [subproject], [AC_CONFIG_SUBDIRS(_LTDL_DIR)
201 _LT_SHELL_INIT([lt_dlopen_dir="$lt_ltdl_dir"])],
202 [nonrecursive], [_LT_SHELL_INIT([lt_dlopen_dir="$lt_ltdl_dir"; lt_libobj_prefix="$lt_ltdl_dir/"])],
203 [recursive], [],
204 [m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])dnl
205 dnl Be careful not to expand twice:
206 m4_define([$0], [])
207 ])# _LTDL_MODE_DISPATCH
208
209
210 # _LT_LIBOBJ(MODULE_NAME)
211 # -----------------------
212 # Like AC_LIBOBJ, except that MODULE_NAME goes into _LT_LIBOBJS instead
213 # of into LIBOBJS.
214 AC_DEFUN([_LT_LIBOBJ], [
215 m4_pattern_allow([^_LT_LIBOBJS$])
216 _LT_LIBOBJS="$_LT_LIBOBJS $1.$ac_objext"
217 ])# _LT_LIBOBJS
218
219
220 # LTDL_INIT([OPTIONS])
221 # --------------------
222 # Clients of libltdl can use this macro to allow the installer to
223 # choose between a shipped copy of the ltdl sources or a preinstalled
224 # version of the library. If the shipped ltdl sources are not in a
225 # subdirectory named libltdl, the directory name must be given by
226 # LT_CONFIG_LTDL_DIR.
227 AC_DEFUN([LTDL_INIT],
228 [dnl Parse OPTIONS
229 _LT_SET_OPTIONS([$0], [$1])
230
231 dnl We need to keep our own list of libobjs separate from our parent project,
232 dnl and the easiest way to do that is redefine the AC_LIBOBJs macro while
233 dnl we look for our own LIBOBJs.
234 m4_pushdef([AC_LIBOBJ], m4_defn([_LT_LIBOBJ]))
235 m4_pushdef([AC_LIBSOURCES])
236
237 dnl If not otherwise defined, default to the 1.5.x compatible subproject mode:
238 m4_if(_LTDL_MODE, [],
239 [m4_define([_LTDL_MODE], m4_default([$2], [subproject]))
240 m4_if([-1], [m4_bregexp(_LTDL_MODE, [\(subproject\|\(non\)?recursive\)])],
241 [m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])
242
243 AC_ARG_WITH([included_ltdl],
244 [AS_HELP_STRING([--with-included-ltdl],
245 [use the GNU ltdl sources included here])])
246
247 if test "x$with_included_ltdl" != xyes; then
248 # We are not being forced to use the included libltdl sources, so
249 # decide whether there is a useful installed version we can use.
250 AC_CHECK_HEADER([ltdl.h],
251 [AC_CHECK_DECL([lt_dlinterface_register],
252 [AC_CHECK_LIB([ltdl], [lt_dladvise_preload],
253 [with_included_ltdl=no],
254 [with_included_ltdl=yes])],
255 [with_included_ltdl=yes],
256 [AC_INCLUDES_DEFAULT
257 #include <ltdl.h>])],
258 [with_included_ltdl=yes],
259 [AC_INCLUDES_DEFAULT]
260 )
261 fi
262
263 dnl If neither LT_CONFIG_LTDL_DIR, LTDL_CONVENIENCE nor LTDL_INSTALLABLE
264 dnl was called yet, then for old times' sake, we assume libltdl is in an
265 dnl eponymous directory:
266 AC_PROVIDE_IFELSE([LT_CONFIG_LTDL_DIR], [], [_LT_CONFIG_LTDL_DIR([libltdl])])
267
268 AC_ARG_WITH([ltdl_include],
269 [AS_HELP_STRING([--with-ltdl-include=DIR],
270 [use the ltdl headers installed in DIR])])
271
272 if test -n "$with_ltdl_include"; then
273 if test -f "$with_ltdl_include/ltdl.h"; then :
274 else
275 AC_MSG_ERROR([invalid ltdl include directory: `$with_ltdl_include'])
276 fi
277 else
278 with_ltdl_include=no
279 fi
280
281 AC_ARG_WITH([ltdl_lib],
282 [AS_HELP_STRING([--with-ltdl-lib=DIR],
283 [use the libltdl.la installed in DIR])])
284
285 if test -n "$with_ltdl_lib"; then
286 if test -f "$with_ltdl_lib/libltdl.la"; then :
287 else
288 AC_MSG_ERROR([invalid ltdl library directory: `$with_ltdl_lib'])
289 fi
290 else
291 with_ltdl_lib=no
292 fi
293
294 case ,$with_included_ltdl,$with_ltdl_include,$with_ltdl_lib, in
295 ,yes,no,no,)
296 m4_case(m4_default(_LTDL_TYPE, [convenience]),
297 [convenience], [_LTDL_CONVENIENCE],
298 [installable], [_LTDL_INSTALLABLE],
299 [m4_fatal([unknown libltdl build type: ]_LTDL_TYPE)])
300 ;;
301 ,no,no,no,)
302 # If the included ltdl is not to be used, then use the
303 # preinstalled libltdl we found.
304 AC_DEFINE([HAVE_LTDL], [1],
305 [Define this if a modern libltdl is already installed])
306 LIBLTDL=-lltdl
307 LTDLDEPS=
308 LTDLINCL=
309 ;;
310 ,no*,no,*)
311 AC_MSG_ERROR([`--with-ltdl-include' and `--with-ltdl-lib' options must be used together])
312 ;;
313 *) with_included_ltdl=no
314 LIBLTDL="-L$with_ltdl_lib -lltdl"
315 LTDLDEPS=
316 LTDLINCL="-I$with_ltdl_include"
317 ;;
318 esac
319 INCLTDL="$LTDLINCL"
320
321 # Report our decision...
322 AC_MSG_CHECKING([where to find libltdl headers])
323 AC_MSG_RESULT([$LTDLINCL])
324 AC_MSG_CHECKING([where to find libltdl library])
325 AC_MSG_RESULT([$LIBLTDL])
326
327 _LTDL_SETUP
328
329 dnl restore autoconf definition.
330 m4_popdef([AC_LIBOBJ])
331 m4_popdef([AC_LIBSOURCES])
332
333 AC_CONFIG_COMMANDS_PRE([
334 _ltdl_libobjs=
335 _ltdl_ltlibobjs=
336 if test -n "$_LT_LIBOBJS"; then
337 # Remove the extension.
338 _lt_sed_drop_objext='s/\.o$//;s/\.obj$//'
339 for i in `for i in $_LT_LIBOBJS; do echo "$i"; done | sed "$_lt_sed_drop_objext" | sort -u`; do
340 _ltdl_libobjs="$_ltdl_libobjs $lt_libobj_prefix$i.$ac_objext"
341 _ltdl_ltlibobjs="$_ltdl_ltlibobjs $lt_libobj_prefix$i.lo"
342 done
343 fi
344 AC_SUBST([ltdl_LIBOBJS], [$_ltdl_libobjs])
345 AC_SUBST([ltdl_LTLIBOBJS], [$_ltdl_ltlibobjs])
346 ])
347
348 # Only expand once:
349 m4_define([LTDL_INIT])
350 ])# LTDL_INIT
351
352 # Old names:
353 AU_DEFUN([AC_LIB_LTDL], [LTDL_INIT($@)])
354 AU_DEFUN([AC_WITH_LTDL], [LTDL_INIT($@)])
355 AU_DEFUN([LT_WITH_LTDL], [LTDL_INIT($@)])
356 dnl aclocal-1.4 backwards compatibility:
357 dnl AC_DEFUN([AC_LIB_LTDL], [])
358 dnl AC_DEFUN([AC_WITH_LTDL], [])
359 dnl AC_DEFUN([LT_WITH_LTDL], [])
360
361
362 # _LTDL_SETUP
363 # -----------
364 # Perform all the checks necessary for compilation of the ltdl objects
365 # -- including compiler checks and header checks. This is a public
366 # interface mainly for the benefit of libltdl's own configure.ac, most
367 # other users should call LTDL_INIT instead.
368 AC_DEFUN([_LTDL_SETUP],
369 [AC_REQUIRE([AC_PROG_CC])dnl
370 AC_REQUIRE([LT_SYS_MODULE_EXT])dnl
371 AC_REQUIRE([LT_SYS_MODULE_PATH])dnl
372 AC_REQUIRE([LT_SYS_DLSEARCH_PATH])dnl
373 AC_REQUIRE([LT_LIB_DLLOAD])dnl
374 AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl
375 AC_REQUIRE([LT_FUNC_DLSYM_USCORE])dnl
376 AC_REQUIRE([LT_SYS_DLOPEN_DEPLIBS])dnl
377 AC_REQUIRE([gl_FUNC_ARGZ])dnl
378
379 m4_require([_LT_CHECK_OBJDIR])dnl
380 m4_require([_LT_HEADER_DLFCN])dnl
381 m4_require([_LT_CHECK_DLPREOPEN])dnl
382 m4_require([_LT_DECL_SED])dnl
383
384 dnl Don't require this, or it will be expanded earlier than the code
385 dnl that sets the variables it relies on:
386 _LT_ENABLE_INSTALL
387
388 dnl _LTDL_MODE specific code must be called at least once:
389 _LTDL_MODE_DISPATCH
390
391 # In order that ltdl.c can compile, find out the first AC_CONFIG_HEADERS
392 # the user used. This is so that ltdl.h can pick up the parent projects
393 # config.h file, The first file in AC_CONFIG_HEADERS must contain the
394 # definitions required by ltdl.c.
395 # FIXME: Remove use of undocumented AC_LIST_HEADERS (2.59 compatibility).
396 AC_CONFIG_COMMANDS_PRE([dnl
397 m4_pattern_allow([^LT_CONFIG_H$])dnl
398 m4_ifset([AH_HEADER],
399 [LT_CONFIG_H=AH_HEADER],
400 [m4_ifset([AC_LIST_HEADERS],
401 [LT_CONFIG_H=`echo "AC_LIST_HEADERS" | $SED 's,^[[ ]]*,,;s,[[ :]].*$,,'`],
402 [])])])
403 AC_SUBST([LT_CONFIG_H])
404
405 AC_CHECK_HEADERS([unistd.h dl.h sys/dl.h dld.h mach-o/dyld.h dirent.h],
406 [], [], [AC_INCLUDES_DEFAULT])
407
408 AC_CHECK_FUNCS([closedir opendir readdir], [], [AC_LIBOBJ([lt__dirent])])
409 AC_CHECK_FUNCS([strlcat strlcpy], [], [AC_LIBOBJ([lt__strl])])
410
411 AC_DEFINE_UNQUOTED([LT_LIBEXT],["$libext"],[The archive extension])
412
413 name=ltdl
414 LTDLOPEN=`eval "\\$ECHO \"$libname_spec\""`
415 AC_SUBST([LTDLOPEN])
416 ])# _LTDL_SETUP
417
418
419 # _LT_ENABLE_INSTALL
420 # ------------------
421 m4_define([_LT_ENABLE_INSTALL],
422 [AC_ARG_ENABLE([ltdl-install],
423 [AS_HELP_STRING([--enable-ltdl-install], [install libltdl])])
424
425 case ,${enable_ltdl_install},${enable_ltdl_convenience} in
426 *yes*) ;;
427 *) enable_ltdl_convenience=yes ;;
428 esac
429
430 m4_ifdef([AM_CONDITIONAL],
431 [AM_CONDITIONAL(INSTALL_LTDL, test x"${enable_ltdl_install-no}" != xno)
432 AM_CONDITIONAL(CONVENIENCE_LTDL, test x"${enable_ltdl_convenience-no}" != xno)])
433 ])# _LT_ENABLE_INSTALL
434
435
436 # LT_SYS_DLOPEN_DEPLIBS
437 # ---------------------
438 AC_DEFUN([LT_SYS_DLOPEN_DEPLIBS],
439 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
440 AC_CACHE_CHECK([whether deplibs are loaded by dlopen],
441 [lt_cv_sys_dlopen_deplibs],
442 [# PORTME does your system automatically load deplibs for dlopen?
443 # or its logical equivalent (e.g. shl_load for HP-UX < 11)
444 # For now, we just catch OSes we know something about -- in the
445 # future, we'll try test this programmatically.
446 lt_cv_sys_dlopen_deplibs=unknown
447 case $host_os in
448 aix3*|aix4.1.*|aix4.2.*)
449 # Unknown whether this is true for these versions of AIX, but
450 # we want this `case' here to explicitly catch those versions.
451 lt_cv_sys_dlopen_deplibs=unknown
452 ;;
453 aix[[4-9]]*)
454 lt_cv_sys_dlopen_deplibs=yes
455 ;;
456 amigaos*)
457 case $host_cpu in
458 powerpc)
459 lt_cv_sys_dlopen_deplibs=no
460 ;;
461 esac
462 ;;
463 darwin*)
464 # Assuming the user has installed a libdl from somewhere, this is true
465 # If you are looking for one http://www.opendarwin.org/projects/dlcompat
466 lt_cv_sys_dlopen_deplibs=yes
467 ;;
468 freebsd* | dragonfly*)
469 lt_cv_sys_dlopen_deplibs=yes
470 ;;
471 gnu* | linux* | k*bsd*-gnu)
472 # GNU and its variants, using gnu ld.so (Glibc)
473 lt_cv_sys_dlopen_deplibs=yes
474 ;;
475 hpux10*|hpux11*)
476 lt_cv_sys_dlopen_deplibs=yes
477 ;;
478 interix*)
479 lt_cv_sys_dlopen_deplibs=yes
480 ;;
481 irix[[12345]]*|irix6.[[01]]*)
482 # Catch all versions of IRIX before 6.2, and indicate that we don't
483 # know how it worked for any of those versions.
484 lt_cv_sys_dlopen_deplibs=unknown
485 ;;
486 irix*)
487 # The case above catches anything before 6.2, and it's known that
488 # at 6.2 and later dlopen does load deplibs.
489 lt_cv_sys_dlopen_deplibs=yes
490 ;;
491 netbsd*)
492 lt_cv_sys_dlopen_deplibs=yes
493 ;;
494 openbsd*)
495 lt_cv_sys_dlopen_deplibs=yes
496 ;;
497 osf[[1234]]*)
498 # dlopen did load deplibs (at least at 4.x), but until the 5.x series,
499 # it did *not* use an RPATH in a shared library to find objects the
500 # library depends on, so we explicitly say `no'.
501 lt_cv_sys_dlopen_deplibs=no
502 ;;
503 osf5.0|osf5.0a|osf5.1)
504 # dlopen *does* load deplibs and with the right loader patch applied
505 # it even uses RPATH in a shared library to search for shared objects
506 # that the library depends on, but there's no easy way to know if that
507 # patch is installed. Since this is the case, all we can really
508 # say is unknown -- it depends on the patch being installed. If
509 # it is, this changes to `yes'. Without it, it would be `no'.
510 lt_cv_sys_dlopen_deplibs=unknown
511 ;;
512 osf*)
513 # the two cases above should catch all versions of osf <= 5.1. Read
514 # the comments above for what we know about them.
515 # At > 5.1, deplibs are loaded *and* any RPATH in a shared library
516 # is used to find them so we can finally say `yes'.
517 lt_cv_sys_dlopen_deplibs=yes
518 ;;
519 qnx*)
520 lt_cv_sys_dlopen_deplibs=yes
521 ;;
522 solaris*)
523 lt_cv_sys_dlopen_deplibs=yes
524 ;;
525 sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
526 libltdl_cv_sys_dlopen_deplibs=yes
527 ;;
528 esac
529 ])
530 if test "$lt_cv_sys_dlopen_deplibs" != yes; then
531 AC_DEFINE([LTDL_DLOPEN_DEPLIBS], [1],
532 [Define if the OS needs help to load dependent libraries for dlopen().])
533 fi
534 ])# LT_SYS_DLOPEN_DEPLIBS
535
536 # Old name:
537 AU_ALIAS([AC_LTDL_SYS_DLOPEN_DEPLIBS], [LT_SYS_DLOPEN_DEPLIBS])
538 dnl aclocal-1.4 backwards compatibility:
539 dnl AC_DEFUN([AC_LTDL_SYS_DLOPEN_DEPLIBS], [])
540
541
542 # LT_SYS_MODULE_EXT
543 # -----------------
544 AC_DEFUN([LT_SYS_MODULE_EXT],
545 [m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
546 AC_CACHE_CHECK([which extension is used for runtime loadable modules],
547 [libltdl_cv_shlibext],
548 [
549 module=yes
550 eval libltdl_cv_shlibext=$shrext_cmds
551 ])
552 if test -n "$libltdl_cv_shlibext"; then
553 m4_pattern_allow([LT_MODULE_EXT])dnl
554 AC_DEFINE_UNQUOTED([LT_MODULE_EXT], ["$libltdl_cv_shlibext"],
555 [Define to the extension used for runtime loadable modules, say, ".so".])
556 fi
557 ])# LT_SYS_MODULE_EXT
558
559 # Old name:
560 AU_ALIAS([AC_LTDL_SHLIBEXT], [LT_SYS_MODULE_EXT])
561 dnl aclocal-1.4 backwards compatibility:
562 dnl AC_DEFUN([AC_LTDL_SHLIBEXT], [])
563
564
565 # LT_SYS_MODULE_PATH
566 # ------------------
567 AC_DEFUN([LT_SYS_MODULE_PATH],
568 [m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
569 AC_CACHE_CHECK([which variable specifies run-time module search path],
570 [lt_cv_module_path_var], [lt_cv_module_path_var="$shlibpath_var"])
571 if test -n "$lt_cv_module_path_var"; then
572 m4_pattern_allow([LT_MODULE_PATH_VAR])dnl
573 AC_DEFINE_UNQUOTED([LT_MODULE_PATH_VAR], ["$lt_cv_module_path_var"],
574 [Define to the name of the environment variable that determines the run-time module search path.])
575 fi
576 ])# LT_SYS_MODULE_PATH
577
578 # Old name:
579 AU_ALIAS([AC_LTDL_SHLIBPATH], [LT_SYS_MODULE_PATH])
580 dnl aclocal-1.4 backwards compatibility:
581 dnl AC_DEFUN([AC_LTDL_SHLIBPATH], [])
582
583
584 # LT_SYS_DLSEARCH_PATH
585 # --------------------
586 AC_DEFUN([LT_SYS_DLSEARCH_PATH],
587 [m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
588 AC_CACHE_CHECK([for the default library search path],
589 [lt_cv_sys_dlsearch_path],
590 [lt_cv_sys_dlsearch_path="$sys_lib_dlsearch_path_spec"])
591 if test -n "$lt_cv_sys_dlsearch_path"; then
592 sys_dlsearch_path=
593 for dir in $lt_cv_sys_dlsearch_path; do
594 if test -z "$sys_dlsearch_path"; then
595 sys_dlsearch_path="$dir"
596 else
597 sys_dlsearch_path="$sys_dlsearch_path$PATH_SEPARATOR$dir"
598 fi
599 done
600 m4_pattern_allow([LT_DLSEARCH_PATH])dnl
601 AC_DEFINE_UNQUOTED([LT_DLSEARCH_PATH], ["$sys_dlsearch_path"],
602 [Define to the system default library search path.])
603 fi
604 ])# LT_SYS_DLSEARCH_PATH
605
606 # Old name:
607 AU_ALIAS([AC_LTDL_SYSSEARCHPATH], [LT_SYS_DLSEARCH_PATH])
608 dnl aclocal-1.4 backwards compatibility:
609 dnl AC_DEFUN([AC_LTDL_SYSSEARCHPATH], [])
610
611
612 # _LT_CHECK_DLPREOPEN
613 # -------------------
614 m4_defun([_LT_CHECK_DLPREOPEN],
615 [m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
616 AC_CACHE_CHECK([whether libtool supports -dlopen/-dlpreopen],
617 [libltdl_cv_preloaded_symbols],
618 [if test -n "$lt_cv_sys_global_symbol_pipe"; then
619 libltdl_cv_preloaded_symbols=yes
620 else
621 libltdl_cv_preloaded_symbols=no
622 fi
623 ])
624 if test x"$libltdl_cv_preloaded_symbols" = xyes; then
625 AC_DEFINE([HAVE_PRELOADED_SYMBOLS], [1],
626 [Define if libtool can extract symbol lists from object files.])
627 fi
628 ])# _LT_CHECK_DLPREOPEN
629
630
631 # LT_LIB_DLLOAD
632 # -------------
633 AC_DEFUN([LT_LIB_DLLOAD],
634 [m4_pattern_allow([^LT_DLLOADERS$])
635 LT_DLLOADERS=
636 AC_SUBST([LT_DLLOADERS])
637
638 AC_LANG_PUSH([C])
639
640 LIBADD_DLOPEN=
641 AC_SEARCH_LIBS([dlopen], [dl],
642 [AC_DEFINE([HAVE_LIBDL], [1],
643 [Define if you have the libdl library or equivalent.])
644 if test "$ac_cv_search_dlopen" != "none required" ; then
645 LIBADD_DLOPEN="-ldl"
646 fi
647 libltdl_cv_lib_dl_dlopen="yes"
648 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
649 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if HAVE_DLFCN_H
650 # include <dlfcn.h>
651 #endif
652 ]], [[dlopen(0, 0);]])],
653 [AC_DEFINE([HAVE_LIBDL], [1],
654 [Define if you have the libdl library or equivalent.])
655 libltdl_cv_func_dlopen="yes"
656 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
657 [AC_CHECK_LIB([svld], [dlopen],
658 [AC_DEFINE([HAVE_LIBDL], [1],
659 [Define if you have the libdl library or equivalent.])
660 LIBADD_DLOPEN="-lsvld" libltdl_cv_func_dlopen="yes"
661 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"])])])
662 if test x"$libltdl_cv_func_dlopen" = xyes || test x"$libltdl_cv_lib_dl_dlopen" = xyes
663 then
664 lt_save_LIBS="$LIBS"
665 LIBS="$LIBS $LIBADD_DLOPEN"
666 AC_CHECK_FUNCS([dlerror])
667 LIBS="$lt_save_LIBS"
668 fi
669 AC_SUBST([LIBADD_DLOPEN])
670
671 LIBADD_SHL_LOAD=
672 AC_CHECK_FUNC([shl_load],
673 [AC_DEFINE([HAVE_SHL_LOAD], [1],
674 [Define if you have the shl_load function.])
675 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"],
676 [AC_CHECK_LIB([dld], [shl_load],
677 [AC_DEFINE([HAVE_SHL_LOAD], [1],
678 [Define if you have the shl_load function.])
679 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"
680 LIBADD_SHL_LOAD="-ldld"])])
681 AC_SUBST([LIBADD_SHL_LOAD])
682
683 case $host_os in
684 darwin[[1567]].*)
685 # We only want this for pre-Mac OS X 10.4.
686 AC_CHECK_FUNC([_dyld_func_lookup],
687 [AC_DEFINE([HAVE_DYLD], [1],
688 [Define if you have the _dyld_func_lookup function.])
689 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dyld.la"])
690 ;;
691 beos*)
692 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}load_add_on.la"
693 ;;
694 cygwin* | mingw* | os2* | pw32*)
695 AC_CHECK_DECLS([cygwin_conv_path], [], [], [[#include <sys/cygwin.h>]])
696 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}loadlibrary.la"
697 ;;
698 esac
699
700 AC_CHECK_LIB([dld], [dld_link],
701 [AC_DEFINE([HAVE_DLD], [1],
702 [Define if you have the GNU dld library.])
703 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dld_link.la"])
704 AC_SUBST([LIBADD_DLD_LINK])
705
706 m4_pattern_allow([^LT_DLPREOPEN$])
707 LT_DLPREOPEN=
708 if test -n "$LT_DLLOADERS"
709 then
710 for lt_loader in $LT_DLLOADERS; do
711 LT_DLPREOPEN="$LT_DLPREOPEN-dlpreopen $lt_loader "
712 done
713 AC_DEFINE([HAVE_LIBDLLOADER], [1],
714 [Define if libdlloader will be built on this platform])
715 fi
716 AC_SUBST([LT_DLPREOPEN])
717
718 dnl This isn't used anymore, but set it for backwards compatibility
719 LIBADD_DL="$LIBADD_DLOPEN $LIBADD_SHL_LOAD"
720 AC_SUBST([LIBADD_DL])
721
722 AC_LANG_POP
723 ])# LT_LIB_DLLOAD
724
725 # Old name:
726 AU_ALIAS([AC_LTDL_DLLIB], [LT_LIB_DLLOAD])
727 dnl aclocal-1.4 backwards compatibility:
728 dnl AC_DEFUN([AC_LTDL_DLLIB], [])
729
730
731 # LT_SYS_SYMBOL_USCORE
732 # --------------------
733 # does the compiler prefix global symbols with an underscore?
734 AC_DEFUN([LT_SYS_SYMBOL_USCORE],
735 [m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
736 AC_CACHE_CHECK([for _ prefix in compiled symbols],
737 [lt_cv_sys_symbol_underscore],
738 [lt_cv_sys_symbol_underscore=no
739 cat > conftest.$ac_ext <<_LT_EOF
740 void nm_test_func(){}
741 int main(){nm_test_func;return 0;}
742 _LT_EOF
743 if AC_TRY_EVAL(ac_compile); then
744 # Now try to grab the symbols.
745 ac_nlist=conftest.nm
746 if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
747 # See whether the symbols have a leading underscore.
748 if grep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
749 lt_cv_sys_symbol_underscore=yes
750 else
751 if grep '^. nm_test_func ' "$ac_nlist" >/dev/null; then
752 :
753 else
754 echo "configure: cannot find nm_test_func in $ac_nlist" >&AS_MESSAGE_LOG_FD
755 fi
756 fi
757 else
758 echo "configure: cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
759 fi
760 else
761 echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
762 cat conftest.c >&AS_MESSAGE_LOG_FD
763 fi
764 rm -rf conftest*
765 ])
766 sys_symbol_underscore=$lt_cv_sys_symbol_underscore
767 AC_SUBST([sys_symbol_underscore])
768 ])# LT_SYS_SYMBOL_USCORE
769
770 # Old name:
771 AU_ALIAS([AC_LTDL_SYMBOL_USCORE], [LT_SYS_SYMBOL_USCORE])
772 dnl aclocal-1.4 backwards compatibility:
773 dnl AC_DEFUN([AC_LTDL_SYMBOL_USCORE], [])
774
775
776 # LT_FUNC_DLSYM_USCORE
777 # --------------------
778 AC_DEFUN([LT_FUNC_DLSYM_USCORE],
779 [AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl
780 if test x"$lt_cv_sys_symbol_underscore" = xyes; then
781 if test x"$libltdl_cv_func_dlopen" = xyes ||
782 test x"$libltdl_cv_lib_dl_dlopen" = xyes ; then
783 AC_CACHE_CHECK([whether we have to add an underscore for dlsym],
784 [libltdl_cv_need_uscore],
785 [libltdl_cv_need_uscore=unknown
786 save_LIBS="$LIBS"
787 LIBS="$LIBS $LIBADD_DLOPEN"
788 _LT_TRY_DLOPEN_SELF(
789 [libltdl_cv_need_uscore=no], [libltdl_cv_need_uscore=yes],
790 [], [libltdl_cv_need_uscore=cross])
791 LIBS="$save_LIBS"
792 ])
793 fi
794 fi
795
796 if test x"$libltdl_cv_need_uscore" = xyes; then
797 AC_DEFINE([NEED_USCORE], [1],
798 [Define if dlsym() requires a leading underscore in symbol names.])
799 fi
800 ])# LT_FUNC_DLSYM_USCORE
801
802 # Old name:
803 AU_ALIAS([AC_LTDL_DLSYM_USCORE], [LT_FUNC_DLSYM_USCORE])
804 dnl aclocal-1.4 backwards compatibility:
805 dnl AC_DEFUN([AC_LTDL_DLSYM_USCORE], [])
806