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cristy3ed852e2009-09-05 21:47:34 +00001# ltdl.m4 - Configure ltdl for the target system. -*-Autoconf-*-
2#
cristy2542fc62011-12-06 17:50:25 +00003# Copyright (C) 1999-2006, 2007, 2008, 2011 Free Software Foundation, Inc.
cristy3ed852e2009-09-05 21:47:34 +00004# Written by Thomas Tanner, 1999
5#
6# This file is free software; the Free Software Foundation gives
7# unlimited permission to copy and/or distribute it, with or without
8# modifications, as long as this notice is preserved.
9
cristy98dddb52010-11-04 00:30:15 +000010# serial 18 LTDL_INIT
cristy3ed852e2009-09-05 21:47:34 +000011
12# LT_CONFIG_LTDL_DIR(DIRECTORY, [LTDL-MODE])
13# ------------------------------------------
14# DIRECTORY contains the libltdl sources. It is okay to call this
15# function multiple times, as long as the same DIRECTORY is always given.
16AC_DEFUN([LT_CONFIG_LTDL_DIR],
17[AC_BEFORE([$0], [LTDL_INIT])
18_$0($*)
19])# LT_CONFIG_LTDL_DIR
20
21# We break this out into a separate macro, so that we can call it safely
22# internally without being caught accidentally by the sed scan in libtoolize.
23m4_defun([_LT_CONFIG_LTDL_DIR],
24[dnl remove trailing slashes
25m4_pushdef([_ARG_DIR], m4_bpatsubst([$1], [/*$]))
26m4_case(_LTDL_DIR,
27 [], [dnl only set lt_ltdl_dir if _ARG_DIR is not simply `.'
28 m4_if(_ARG_DIR, [.],
29 [],
30 [m4_define([_LTDL_DIR], _ARG_DIR)
31 _LT_SHELL_INIT([lt_ltdl_dir=']_ARG_DIR['])])],
32 [m4_if(_ARG_DIR, _LTDL_DIR,
33 [],
34 [m4_fatal([multiple libltdl directories: `]_LTDL_DIR[', `]_ARG_DIR['])])])
35m4_popdef([_ARG_DIR])
36])# _LT_CONFIG_LTDL_DIR
37
38# Initialise:
39m4_define([_LTDL_DIR], [])
40
41
42# _LT_BUILD_PREFIX
43# ----------------
44# If Autoconf is new enough, expand to `${top_build_prefix}', otherwise
45# to `${top_builddir}/'.
46m4_define([_LT_BUILD_PREFIX],
47[m4_ifdef([AC_AUTOCONF_VERSION],
48 [m4_if(m4_version_compare(m4_defn([AC_AUTOCONF_VERSION]), [2.62]),
49 [-1], [m4_ifdef([_AC_HAVE_TOP_BUILD_PREFIX],
50 [${top_build_prefix}],
51 [${top_builddir}/])],
52 [${top_build_prefix}])],
53 [${top_builddir}/])[]dnl
54])
55
56
57# LTDL_CONVENIENCE
58# ----------------
59# sets LIBLTDL to the link flags for the libltdl convenience library and
60# LTDLINCL to the include flags for the libltdl header and adds
61# --enable-ltdl-convenience to the configure arguments. Note that
62# AC_CONFIG_SUBDIRS is not called here. LIBLTDL will be prefixed with
63# '${top_build_prefix}' if available, otherwise with '${top_builddir}/',
64# and LTDLINCL will be prefixed with '${top_srcdir}/' (note the single
65# quotes!). If your package is not flat and you're not using automake,
66# define top_build_prefix, top_builddir, and top_srcdir appropriately
67# in your Makefiles.
68AC_DEFUN([LTDL_CONVENIENCE],
69[AC_BEFORE([$0], [LTDL_INIT])dnl
70dnl Although the argument is deprecated and no longer documented,
71dnl LTDL_CONVENIENCE used to take a DIRECTORY orgument, if we have one
72dnl here make sure it is the same as any other declaration of libltdl's
73dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
74dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
75m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
76_$0()
77])# LTDL_CONVENIENCE
78
79# AC_LIBLTDL_CONVENIENCE accepted a directory argument in older libtools,
80# now we have LT_CONFIG_LTDL_DIR:
81AU_DEFUN([AC_LIBLTDL_CONVENIENCE],
82[_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
83_LTDL_CONVENIENCE])
84
85dnl aclocal-1.4 backwards compatibility:
86dnl AC_DEFUN([AC_LIBLTDL_CONVENIENCE], [])
87
88
89# _LTDL_CONVENIENCE
90# -----------------
91# Code shared by LTDL_CONVENIENCE and LTDL_INIT([convenience]).
92m4_defun([_LTDL_CONVENIENCE],
93[case $enable_ltdl_convenience in
94 no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
95 "") enable_ltdl_convenience=yes
96 ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
97esac
98LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdlc.la"
99LTDLDEPS=$LIBLTDL
100LTDLINCL='-I${top_srcdir}'"${lt_ltdl_dir+/$lt_ltdl_dir}"
101
102AC_SUBST([LIBLTDL])
103AC_SUBST([LTDLDEPS])
104AC_SUBST([LTDLINCL])
105
106# For backwards non-gettext consistent compatibility...
107INCLTDL="$LTDLINCL"
108AC_SUBST([INCLTDL])
109])# _LTDL_CONVENIENCE
110
111
112# LTDL_INSTALLABLE
113# ----------------
114# sets LIBLTDL to the link flags for the libltdl installable library
115# and LTDLINCL to the include flags for the libltdl header and adds
116# --enable-ltdl-install to the configure arguments. Note that
117# AC_CONFIG_SUBDIRS is not called from here. If an installed libltdl
118# is not found, LIBLTDL will be prefixed with '${top_build_prefix}' if
119# available, otherwise with '${top_builddir}/', and LTDLINCL will be
120# prefixed with '${top_srcdir}/' (note the single quotes!). If your
121# package is not flat and you're not using automake, define top_build_prefix,
122# top_builddir, and top_srcdir appropriately in your Makefiles.
123# In the future, this macro may have to be called after LT_INIT.
124AC_DEFUN([LTDL_INSTALLABLE],
125[AC_BEFORE([$0], [LTDL_INIT])dnl
126dnl Although the argument is deprecated and no longer documented,
127dnl LTDL_INSTALLABLE used to take a DIRECTORY orgument, if we have one
128dnl here make sure it is the same as any other declaration of libltdl's
129dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
130dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
131m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
132_$0()
133])# LTDL_INSTALLABLE
134
135# AC_LIBLTDL_INSTALLABLE accepted a directory argument in older libtools,
136# now we have LT_CONFIG_LTDL_DIR:
137AU_DEFUN([AC_LIBLTDL_INSTALLABLE],
138[_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
139_LTDL_INSTALLABLE])
140
141dnl aclocal-1.4 backwards compatibility:
142dnl AC_DEFUN([AC_LIBLTDL_INSTALLABLE], [])
143
144
145# _LTDL_INSTALLABLE
146# -----------------
147# Code shared by LTDL_INSTALLABLE and LTDL_INIT([installable]).
148m4_defun([_LTDL_INSTALLABLE],
149[if test -f $prefix/lib/libltdl.la; then
150 lt_save_LDFLAGS="$LDFLAGS"
151 LDFLAGS="-L$prefix/lib $LDFLAGS"
152 AC_CHECK_LIB([ltdl], [lt_dlinit], [lt_lib_ltdl=yes])
153 LDFLAGS="$lt_save_LDFLAGS"
154 if test x"${lt_lib_ltdl-no}" = xyes; then
155 if test x"$enable_ltdl_install" != xyes; then
156 # Don't overwrite $prefix/lib/libltdl.la without --enable-ltdl-install
157 AC_MSG_WARN([not overwriting libltdl at $prefix, force with `--enable-ltdl-install'])
158 enable_ltdl_install=no
159 fi
160 elif test x"$enable_ltdl_install" = xno; then
161 AC_MSG_WARN([libltdl not installed, but installation disabled])
162 fi
163fi
164
165# If configure.ac declared an installable ltdl, and the user didn't override
166# with --disable-ltdl-install, we will install the shipped libltdl.
167case $enable_ltdl_install in
168 no) ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
169 LIBLTDL="-lltdl"
170 LTDLDEPS=
171 LTDLINCL=
172 ;;
173 *) enable_ltdl_install=yes
174 ac_configure_args="$ac_configure_args --enable-ltdl-install"
175 LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdl.la"
176 LTDLDEPS=$LIBLTDL
177 LTDLINCL='-I${top_srcdir}'"${lt_ltdl_dir+/$lt_ltdl_dir}"
178 ;;
179esac
180
181AC_SUBST([LIBLTDL])
182AC_SUBST([LTDLDEPS])
183AC_SUBST([LTDLINCL])
184
185# For backwards non-gettext consistent compatibility...
186INCLTDL="$LTDLINCL"
187AC_SUBST([INCLTDL])
188])# LTDL_INSTALLABLE
189
190
191# _LTDL_MODE_DISPATCH
192# -------------------
193m4_define([_LTDL_MODE_DISPATCH],
194[dnl If _LTDL_DIR is `.', then we are configuring libltdl itself:
195m4_if(_LTDL_DIR, [],
196 [],
197 dnl if _LTDL_MODE was not set already, the default value is `subproject':
198 [m4_case(m4_default(_LTDL_MODE, [subproject]),
199 [subproject], [AC_CONFIG_SUBDIRS(_LTDL_DIR)
200 _LT_SHELL_INIT([lt_dlopen_dir="$lt_ltdl_dir"])],
201 [nonrecursive], [_LT_SHELL_INIT([lt_dlopen_dir="$lt_ltdl_dir"; lt_libobj_prefix="$lt_ltdl_dir/"])],
202 [recursive], [],
203 [m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])dnl
204dnl Be careful not to expand twice:
205m4_define([$0], [])
206])# _LTDL_MODE_DISPATCH
207
208
209# _LT_LIBOBJ(MODULE_NAME)
210# -----------------------
211# Like AC_LIBOBJ, except that MODULE_NAME goes into _LT_LIBOBJS instead
212# of into LIBOBJS.
213AC_DEFUN([_LT_LIBOBJ], [
214 m4_pattern_allow([^_LT_LIBOBJS$])
215 _LT_LIBOBJS="$_LT_LIBOBJS $1.$ac_objext"
216])# _LT_LIBOBJS
217
218
219# LTDL_INIT([OPTIONS])
220# --------------------
221# Clients of libltdl can use this macro to allow the installer to
222# choose between a shipped copy of the ltdl sources or a preinstalled
223# version of the library. If the shipped ltdl sources are not in a
224# subdirectory named libltdl, the directory name must be given by
225# LT_CONFIG_LTDL_DIR.
226AC_DEFUN([LTDL_INIT],
227[dnl Parse OPTIONS
228_LT_SET_OPTIONS([$0], [$1])
229
230dnl We need to keep our own list of libobjs separate from our parent project,
231dnl and the easiest way to do that is redefine the AC_LIBOBJs macro while
232dnl we look for our own LIBOBJs.
233m4_pushdef([AC_LIBOBJ], m4_defn([_LT_LIBOBJ]))
234m4_pushdef([AC_LIBSOURCES])
235
236dnl If not otherwise defined, default to the 1.5.x compatible subproject mode:
237m4_if(_LTDL_MODE, [],
238 [m4_define([_LTDL_MODE], m4_default([$2], [subproject]))
239 m4_if([-1], [m4_bregexp(_LTDL_MODE, [\(subproject\|\(non\)?recursive\)])],
240 [m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])
241
242AC_ARG_WITH([included_ltdl],
243 [AS_HELP_STRING([--with-included-ltdl],
244 [use the GNU ltdl sources included here])])
245
246if test "x$with_included_ltdl" != xyes; then
247 # We are not being forced to use the included libltdl sources, so
248 # decide whether there is a useful installed version we can use.
249 AC_CHECK_HEADER([ltdl.h],
250 [AC_CHECK_DECL([lt_dlinterface_register],
251 [AC_CHECK_LIB([ltdl], [lt_dladvise_preload],
252 [with_included_ltdl=no],
253 [with_included_ltdl=yes])],
254 [with_included_ltdl=yes],
255 [AC_INCLUDES_DEFAULT
256 #include <ltdl.h>])],
257 [with_included_ltdl=yes],
258 [AC_INCLUDES_DEFAULT]
259 )
260fi
261
262dnl If neither LT_CONFIG_LTDL_DIR, LTDL_CONVENIENCE nor LTDL_INSTALLABLE
263dnl was called yet, then for old times' sake, we assume libltdl is in an
264dnl eponymous directory:
265AC_PROVIDE_IFELSE([LT_CONFIG_LTDL_DIR], [], [_LT_CONFIG_LTDL_DIR([libltdl])])
266
267AC_ARG_WITH([ltdl_include],
268 [AS_HELP_STRING([--with-ltdl-include=DIR],
269 [use the ltdl headers installed in DIR])])
270
271if test -n "$with_ltdl_include"; then
272 if test -f "$with_ltdl_include/ltdl.h"; then :
273 else
274 AC_MSG_ERROR([invalid ltdl include directory: `$with_ltdl_include'])
275 fi
276else
277 with_ltdl_include=no
278fi
279
280AC_ARG_WITH([ltdl_lib],
281 [AS_HELP_STRING([--with-ltdl-lib=DIR],
282 [use the libltdl.la installed in DIR])])
283
284if test -n "$with_ltdl_lib"; then
285 if test -f "$with_ltdl_lib/libltdl.la"; then :
286 else
287 AC_MSG_ERROR([invalid ltdl library directory: `$with_ltdl_lib'])
288 fi
289else
290 with_ltdl_lib=no
291fi
292
293case ,$with_included_ltdl,$with_ltdl_include,$with_ltdl_lib, in
294 ,yes,no,no,)
295 m4_case(m4_default(_LTDL_TYPE, [convenience]),
296 [convenience], [_LTDL_CONVENIENCE],
297 [installable], [_LTDL_INSTALLABLE],
298 [m4_fatal([unknown libltdl build type: ]_LTDL_TYPE)])
299 ;;
300 ,no,no,no,)
301 # If the included ltdl is not to be used, then use the
302 # preinstalled libltdl we found.
303 AC_DEFINE([HAVE_LTDL], [1],
304 [Define this if a modern libltdl is already installed])
305 LIBLTDL=-lltdl
306 LTDLDEPS=
307 LTDLINCL=
308 ;;
309 ,no*,no,*)
310 AC_MSG_ERROR([`--with-ltdl-include' and `--with-ltdl-lib' options must be used together])
311 ;;
312 *) with_included_ltdl=no
313 LIBLTDL="-L$with_ltdl_lib -lltdl"
314 LTDLDEPS=
315 LTDLINCL="-I$with_ltdl_include"
316 ;;
317esac
318INCLTDL="$LTDLINCL"
319
320# Report our decision...
321AC_MSG_CHECKING([where to find libltdl headers])
322AC_MSG_RESULT([$LTDLINCL])
323AC_MSG_CHECKING([where to find libltdl library])
324AC_MSG_RESULT([$LIBLTDL])
325
326_LTDL_SETUP
327
328dnl restore autoconf definition.
329m4_popdef([AC_LIBOBJ])
330m4_popdef([AC_LIBSOURCES])
331
332AC_CONFIG_COMMANDS_PRE([
333 _ltdl_libobjs=
334 _ltdl_ltlibobjs=
335 if test -n "$_LT_LIBOBJS"; then
336 # Remove the extension.
337 _lt_sed_drop_objext='s/\.o$//;s/\.obj$//'
338 for i in `for i in $_LT_LIBOBJS; do echo "$i"; done | sed "$_lt_sed_drop_objext" | sort -u`; do
339 _ltdl_libobjs="$_ltdl_libobjs $lt_libobj_prefix$i.$ac_objext"
340 _ltdl_ltlibobjs="$_ltdl_ltlibobjs $lt_libobj_prefix$i.lo"
341 done
342 fi
343 AC_SUBST([ltdl_LIBOBJS], [$_ltdl_libobjs])
344 AC_SUBST([ltdl_LTLIBOBJS], [$_ltdl_ltlibobjs])
345])
346
347# Only expand once:
348m4_define([LTDL_INIT])
349])# LTDL_INIT
350
351# Old names:
352AU_DEFUN([AC_LIB_LTDL], [LTDL_INIT($@)])
353AU_DEFUN([AC_WITH_LTDL], [LTDL_INIT($@)])
354AU_DEFUN([LT_WITH_LTDL], [LTDL_INIT($@)])
355dnl aclocal-1.4 backwards compatibility:
356dnl AC_DEFUN([AC_LIB_LTDL], [])
357dnl AC_DEFUN([AC_WITH_LTDL], [])
358dnl AC_DEFUN([LT_WITH_LTDL], [])
359
360
361# _LTDL_SETUP
362# -----------
363# Perform all the checks necessary for compilation of the ltdl objects
364# -- including compiler checks and header checks. This is a public
365# interface mainly for the benefit of libltdl's own configure.ac, most
366# other users should call LTDL_INIT instead.
367AC_DEFUN([_LTDL_SETUP],
368[AC_REQUIRE([AC_PROG_CC])dnl
369AC_REQUIRE([LT_SYS_MODULE_EXT])dnl
370AC_REQUIRE([LT_SYS_MODULE_PATH])dnl
371AC_REQUIRE([LT_SYS_DLSEARCH_PATH])dnl
372AC_REQUIRE([LT_LIB_DLLOAD])dnl
373AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl
374AC_REQUIRE([LT_FUNC_DLSYM_USCORE])dnl
375AC_REQUIRE([LT_SYS_DLOPEN_DEPLIBS])dnl
376AC_REQUIRE([gl_FUNC_ARGZ])dnl
377
378m4_require([_LT_CHECK_OBJDIR])dnl
379m4_require([_LT_HEADER_DLFCN])dnl
380m4_require([_LT_CHECK_DLPREOPEN])dnl
381m4_require([_LT_DECL_SED])dnl
382
383dnl Don't require this, or it will be expanded earlier than the code
384dnl that sets the variables it relies on:
385_LT_ENABLE_INSTALL
386
387dnl _LTDL_MODE specific code must be called at least once:
388_LTDL_MODE_DISPATCH
389
390# In order that ltdl.c can compile, find out the first AC_CONFIG_HEADERS
391# the user used. This is so that ltdl.h can pick up the parent projects
392# config.h file, The first file in AC_CONFIG_HEADERS must contain the
393# definitions required by ltdl.c.
394# FIXME: Remove use of undocumented AC_LIST_HEADERS (2.59 compatibility).
395AC_CONFIG_COMMANDS_PRE([dnl
396m4_pattern_allow([^LT_CONFIG_H$])dnl
397m4_ifset([AH_HEADER],
398 [LT_CONFIG_H=AH_HEADER],
399 [m4_ifset([AC_LIST_HEADERS],
400 [LT_CONFIG_H=`echo "AC_LIST_HEADERS" | $SED 's,^[[ ]]*,,;s,[[ :]].*$,,'`],
401 [])])])
402AC_SUBST([LT_CONFIG_H])
403
404AC_CHECK_HEADERS([unistd.h dl.h sys/dl.h dld.h mach-o/dyld.h dirent.h],
405 [], [], [AC_INCLUDES_DEFAULT])
406
407AC_CHECK_FUNCS([closedir opendir readdir], [], [AC_LIBOBJ([lt__dirent])])
408AC_CHECK_FUNCS([strlcat strlcpy], [], [AC_LIBOBJ([lt__strl])])
409
cristy98dddb52010-11-04 00:30:15 +0000410m4_pattern_allow([LT_LIBEXT])dnl
cristy3ed852e2009-09-05 21:47:34 +0000411AC_DEFINE_UNQUOTED([LT_LIBEXT],["$libext"],[The archive extension])
412
cristyda16f162011-02-19 23:52:17 +0000413name=
414eval "lt_libprefix=\"$libname_spec\""
415m4_pattern_allow([LT_LIBPREFIX])dnl
416AC_DEFINE_UNQUOTED([LT_LIBPREFIX],["$lt_libprefix"],[The archive prefix])
417
cristy3ed852e2009-09-05 21:47:34 +0000418name=ltdl
cristyda16f162011-02-19 23:52:17 +0000419eval "LTDLOPEN=\"$libname_spec\""
cristy3ed852e2009-09-05 21:47:34 +0000420AC_SUBST([LTDLOPEN])
421])# _LTDL_SETUP
422
423
424# _LT_ENABLE_INSTALL
425# ------------------
426m4_define([_LT_ENABLE_INSTALL],
427[AC_ARG_ENABLE([ltdl-install],
428 [AS_HELP_STRING([--enable-ltdl-install], [install libltdl])])
429
430case ,${enable_ltdl_install},${enable_ltdl_convenience} in
431 *yes*) ;;
432 *) enable_ltdl_convenience=yes ;;
433esac
434
435m4_ifdef([AM_CONDITIONAL],
436[AM_CONDITIONAL(INSTALL_LTDL, test x"${enable_ltdl_install-no}" != xno)
437 AM_CONDITIONAL(CONVENIENCE_LTDL, test x"${enable_ltdl_convenience-no}" != xno)])
438])# _LT_ENABLE_INSTALL
439
440
441# LT_SYS_DLOPEN_DEPLIBS
442# ---------------------
443AC_DEFUN([LT_SYS_DLOPEN_DEPLIBS],
444[AC_REQUIRE([AC_CANONICAL_HOST])dnl
445AC_CACHE_CHECK([whether deplibs are loaded by dlopen],
446 [lt_cv_sys_dlopen_deplibs],
447 [# PORTME does your system automatically load deplibs for dlopen?
448 # or its logical equivalent (e.g. shl_load for HP-UX < 11)
449 # For now, we just catch OSes we know something about -- in the
450 # future, we'll try test this programmatically.
451 lt_cv_sys_dlopen_deplibs=unknown
452 case $host_os in
453 aix3*|aix4.1.*|aix4.2.*)
454 # Unknown whether this is true for these versions of AIX, but
455 # we want this `case' here to explicitly catch those versions.
456 lt_cv_sys_dlopen_deplibs=unknown
457 ;;
458 aix[[4-9]]*)
459 lt_cv_sys_dlopen_deplibs=yes
460 ;;
461 amigaos*)
462 case $host_cpu in
463 powerpc)
464 lt_cv_sys_dlopen_deplibs=no
465 ;;
466 esac
467 ;;
468 darwin*)
469 # Assuming the user has installed a libdl from somewhere, this is true
470 # If you are looking for one http://www.opendarwin.org/projects/dlcompat
471 lt_cv_sys_dlopen_deplibs=yes
472 ;;
473 freebsd* | dragonfly*)
474 lt_cv_sys_dlopen_deplibs=yes
475 ;;
cristy98dddb52010-11-04 00:30:15 +0000476 gnu* | linux* | k*bsd*-gnu | kopensolaris*-gnu)
cristy3ed852e2009-09-05 21:47:34 +0000477 # GNU and its variants, using gnu ld.so (Glibc)
478 lt_cv_sys_dlopen_deplibs=yes
479 ;;
480 hpux10*|hpux11*)
481 lt_cv_sys_dlopen_deplibs=yes
482 ;;
483 interix*)
484 lt_cv_sys_dlopen_deplibs=yes
485 ;;
486 irix[[12345]]*|irix6.[[01]]*)
487 # Catch all versions of IRIX before 6.2, and indicate that we don't
488 # know how it worked for any of those versions.
489 lt_cv_sys_dlopen_deplibs=unknown
490 ;;
491 irix*)
492 # The case above catches anything before 6.2, and it's known that
493 # at 6.2 and later dlopen does load deplibs.
494 lt_cv_sys_dlopen_deplibs=yes
495 ;;
496 netbsd*)
497 lt_cv_sys_dlopen_deplibs=yes
498 ;;
499 openbsd*)
500 lt_cv_sys_dlopen_deplibs=yes
501 ;;
502 osf[[1234]]*)
503 # dlopen did load deplibs (at least at 4.x), but until the 5.x series,
504 # it did *not* use an RPATH in a shared library to find objects the
505 # library depends on, so we explicitly say `no'.
506 lt_cv_sys_dlopen_deplibs=no
507 ;;
508 osf5.0|osf5.0a|osf5.1)
509 # dlopen *does* load deplibs and with the right loader patch applied
510 # it even uses RPATH in a shared library to search for shared objects
511 # that the library depends on, but there's no easy way to know if that
512 # patch is installed. Since this is the case, all we can really
513 # say is unknown -- it depends on the patch being installed. If
514 # it is, this changes to `yes'. Without it, it would be `no'.
515 lt_cv_sys_dlopen_deplibs=unknown
516 ;;
517 osf*)
518 # the two cases above should catch all versions of osf <= 5.1. Read
519 # the comments above for what we know about them.
520 # At > 5.1, deplibs are loaded *and* any RPATH in a shared library
521 # is used to find them so we can finally say `yes'.
522 lt_cv_sys_dlopen_deplibs=yes
523 ;;
524 qnx*)
525 lt_cv_sys_dlopen_deplibs=yes
526 ;;
527 solaris*)
528 lt_cv_sys_dlopen_deplibs=yes
529 ;;
530 sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
531 libltdl_cv_sys_dlopen_deplibs=yes
532 ;;
533 esac
534 ])
535if test "$lt_cv_sys_dlopen_deplibs" != yes; then
536 AC_DEFINE([LTDL_DLOPEN_DEPLIBS], [1],
537 [Define if the OS needs help to load dependent libraries for dlopen().])
538fi
539])# LT_SYS_DLOPEN_DEPLIBS
540
541# Old name:
542AU_ALIAS([AC_LTDL_SYS_DLOPEN_DEPLIBS], [LT_SYS_DLOPEN_DEPLIBS])
543dnl aclocal-1.4 backwards compatibility:
544dnl AC_DEFUN([AC_LTDL_SYS_DLOPEN_DEPLIBS], [])
545
546
547# LT_SYS_MODULE_EXT
548# -----------------
549AC_DEFUN([LT_SYS_MODULE_EXT],
550[m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
551AC_CACHE_CHECK([which extension is used for runtime loadable modules],
552 [libltdl_cv_shlibext],
553[
554module=yes
555eval libltdl_cv_shlibext=$shrext_cmds
cristy2542fc62011-12-06 17:50:25 +0000556module=no
557eval libltdl_cv_shrext=$shrext_cmds
cristy3ed852e2009-09-05 21:47:34 +0000558 ])
559if test -n "$libltdl_cv_shlibext"; then
560 m4_pattern_allow([LT_MODULE_EXT])dnl
561 AC_DEFINE_UNQUOTED([LT_MODULE_EXT], ["$libltdl_cv_shlibext"],
562 [Define to the extension used for runtime loadable modules, say, ".so".])
563fi
cristy2542fc62011-12-06 17:50:25 +0000564if test "$libltdl_cv_shrext" != "$libltdl_cv_shlibext"; then
565 m4_pattern_allow([LT_SHARED_EXT])dnl
566 AC_DEFINE_UNQUOTED([LT_SHARED_EXT], ["$libltdl_cv_shrext"],
567 [Define to the shared library suffix, say, ".dylib".])
568fi
cristy3ed852e2009-09-05 21:47:34 +0000569])# LT_SYS_MODULE_EXT
570
571# Old name:
572AU_ALIAS([AC_LTDL_SHLIBEXT], [LT_SYS_MODULE_EXT])
573dnl aclocal-1.4 backwards compatibility:
574dnl AC_DEFUN([AC_LTDL_SHLIBEXT], [])
575
576
577# LT_SYS_MODULE_PATH
578# ------------------
579AC_DEFUN([LT_SYS_MODULE_PATH],
580[m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
581AC_CACHE_CHECK([which variable specifies run-time module search path],
582 [lt_cv_module_path_var], [lt_cv_module_path_var="$shlibpath_var"])
583if test -n "$lt_cv_module_path_var"; then
584 m4_pattern_allow([LT_MODULE_PATH_VAR])dnl
585 AC_DEFINE_UNQUOTED([LT_MODULE_PATH_VAR], ["$lt_cv_module_path_var"],
586 [Define to the name of the environment variable that determines the run-time module search path.])
587fi
588])# LT_SYS_MODULE_PATH
589
590# Old name:
591AU_ALIAS([AC_LTDL_SHLIBPATH], [LT_SYS_MODULE_PATH])
592dnl aclocal-1.4 backwards compatibility:
593dnl AC_DEFUN([AC_LTDL_SHLIBPATH], [])
594
595
596# LT_SYS_DLSEARCH_PATH
597# --------------------
598AC_DEFUN([LT_SYS_DLSEARCH_PATH],
599[m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
600AC_CACHE_CHECK([for the default library search path],
601 [lt_cv_sys_dlsearch_path],
602 [lt_cv_sys_dlsearch_path="$sys_lib_dlsearch_path_spec"])
603if test -n "$lt_cv_sys_dlsearch_path"; then
604 sys_dlsearch_path=
605 for dir in $lt_cv_sys_dlsearch_path; do
606 if test -z "$sys_dlsearch_path"; then
607 sys_dlsearch_path="$dir"
608 else
609 sys_dlsearch_path="$sys_dlsearch_path$PATH_SEPARATOR$dir"
610 fi
611 done
612 m4_pattern_allow([LT_DLSEARCH_PATH])dnl
613 AC_DEFINE_UNQUOTED([LT_DLSEARCH_PATH], ["$sys_dlsearch_path"],
614 [Define to the system default library search path.])
615fi
616])# LT_SYS_DLSEARCH_PATH
617
618# Old name:
619AU_ALIAS([AC_LTDL_SYSSEARCHPATH], [LT_SYS_DLSEARCH_PATH])
620dnl aclocal-1.4 backwards compatibility:
621dnl AC_DEFUN([AC_LTDL_SYSSEARCHPATH], [])
622
623
624# _LT_CHECK_DLPREOPEN
625# -------------------
626m4_defun([_LT_CHECK_DLPREOPEN],
627[m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
628AC_CACHE_CHECK([whether libtool supports -dlopen/-dlpreopen],
629 [libltdl_cv_preloaded_symbols],
630 [if test -n "$lt_cv_sys_global_symbol_pipe"; then
631 libltdl_cv_preloaded_symbols=yes
632 else
633 libltdl_cv_preloaded_symbols=no
634 fi
635 ])
636if test x"$libltdl_cv_preloaded_symbols" = xyes; then
637 AC_DEFINE([HAVE_PRELOADED_SYMBOLS], [1],
638 [Define if libtool can extract symbol lists from object files.])
639fi
640])# _LT_CHECK_DLPREOPEN
641
642
643# LT_LIB_DLLOAD
644# -------------
645AC_DEFUN([LT_LIB_DLLOAD],
646[m4_pattern_allow([^LT_DLLOADERS$])
647LT_DLLOADERS=
648AC_SUBST([LT_DLLOADERS])
649
650AC_LANG_PUSH([C])
651
652LIBADD_DLOPEN=
653AC_SEARCH_LIBS([dlopen], [dl],
654 [AC_DEFINE([HAVE_LIBDL], [1],
655 [Define if you have the libdl library or equivalent.])
656 if test "$ac_cv_search_dlopen" != "none required" ; then
657 LIBADD_DLOPEN="-ldl"
658 fi
659 libltdl_cv_lib_dl_dlopen="yes"
660 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
661 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if HAVE_DLFCN_H
662# include <dlfcn.h>
663#endif
664 ]], [[dlopen(0, 0);]])],
665 [AC_DEFINE([HAVE_LIBDL], [1],
666 [Define if you have the libdl library or equivalent.])
667 libltdl_cv_func_dlopen="yes"
668 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
669 [AC_CHECK_LIB([svld], [dlopen],
670 [AC_DEFINE([HAVE_LIBDL], [1],
671 [Define if you have the libdl library or equivalent.])
672 LIBADD_DLOPEN="-lsvld" libltdl_cv_func_dlopen="yes"
673 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"])])])
674if test x"$libltdl_cv_func_dlopen" = xyes || test x"$libltdl_cv_lib_dl_dlopen" = xyes
675then
676 lt_save_LIBS="$LIBS"
677 LIBS="$LIBS $LIBADD_DLOPEN"
678 AC_CHECK_FUNCS([dlerror])
679 LIBS="$lt_save_LIBS"
680fi
681AC_SUBST([LIBADD_DLOPEN])
682
683LIBADD_SHL_LOAD=
684AC_CHECK_FUNC([shl_load],
685 [AC_DEFINE([HAVE_SHL_LOAD], [1],
686 [Define if you have the shl_load function.])
687 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"],
688 [AC_CHECK_LIB([dld], [shl_load],
689 [AC_DEFINE([HAVE_SHL_LOAD], [1],
690 [Define if you have the shl_load function.])
691 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"
692 LIBADD_SHL_LOAD="-ldld"])])
693AC_SUBST([LIBADD_SHL_LOAD])
694
695case $host_os in
696darwin[[1567]].*)
697# We only want this for pre-Mac OS X 10.4.
698 AC_CHECK_FUNC([_dyld_func_lookup],
699 [AC_DEFINE([HAVE_DYLD], [1],
700 [Define if you have the _dyld_func_lookup function.])
701 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dyld.la"])
702 ;;
703beos*)
704 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}load_add_on.la"
705 ;;
706cygwin* | mingw* | os2* | pw32*)
707 AC_CHECK_DECLS([cygwin_conv_path], [], [], [[#include <sys/cygwin.h>]])
708 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}loadlibrary.la"
709 ;;
710esac
711
712AC_CHECK_LIB([dld], [dld_link],
713 [AC_DEFINE([HAVE_DLD], [1],
714 [Define if you have the GNU dld library.])
715 LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dld_link.la"])
716AC_SUBST([LIBADD_DLD_LINK])
717
718m4_pattern_allow([^LT_DLPREOPEN$])
719LT_DLPREOPEN=
720if test -n "$LT_DLLOADERS"
721then
722 for lt_loader in $LT_DLLOADERS; do
723 LT_DLPREOPEN="$LT_DLPREOPEN-dlpreopen $lt_loader "
724 done
725 AC_DEFINE([HAVE_LIBDLLOADER], [1],
726 [Define if libdlloader will be built on this platform])
727fi
728AC_SUBST([LT_DLPREOPEN])
729
730dnl This isn't used anymore, but set it for backwards compatibility
731LIBADD_DL="$LIBADD_DLOPEN $LIBADD_SHL_LOAD"
732AC_SUBST([LIBADD_DL])
733
734AC_LANG_POP
735])# LT_LIB_DLLOAD
736
737# Old name:
738AU_ALIAS([AC_LTDL_DLLIB], [LT_LIB_DLLOAD])
739dnl aclocal-1.4 backwards compatibility:
740dnl AC_DEFUN([AC_LTDL_DLLIB], [])
741
742
743# LT_SYS_SYMBOL_USCORE
744# --------------------
745# does the compiler prefix global symbols with an underscore?
746AC_DEFUN([LT_SYS_SYMBOL_USCORE],
747[m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
748AC_CACHE_CHECK([for _ prefix in compiled symbols],
749 [lt_cv_sys_symbol_underscore],
750 [lt_cv_sys_symbol_underscore=no
751 cat > conftest.$ac_ext <<_LT_EOF
752void nm_test_func(){}
753int main(){nm_test_func;return 0;}
754_LT_EOF
755 if AC_TRY_EVAL(ac_compile); then
756 # Now try to grab the symbols.
757 ac_nlist=conftest.nm
758 if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
759 # See whether the symbols have a leading underscore.
760 if grep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
761 lt_cv_sys_symbol_underscore=yes
762 else
763 if grep '^. nm_test_func ' "$ac_nlist" >/dev/null; then
764 :
765 else
766 echo "configure: cannot find nm_test_func in $ac_nlist" >&AS_MESSAGE_LOG_FD
767 fi
768 fi
769 else
770 echo "configure: cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
771 fi
772 else
773 echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
774 cat conftest.c >&AS_MESSAGE_LOG_FD
775 fi
776 rm -rf conftest*
777 ])
778 sys_symbol_underscore=$lt_cv_sys_symbol_underscore
779 AC_SUBST([sys_symbol_underscore])
780])# LT_SYS_SYMBOL_USCORE
781
782# Old name:
783AU_ALIAS([AC_LTDL_SYMBOL_USCORE], [LT_SYS_SYMBOL_USCORE])
784dnl aclocal-1.4 backwards compatibility:
785dnl AC_DEFUN([AC_LTDL_SYMBOL_USCORE], [])
786
787
788# LT_FUNC_DLSYM_USCORE
789# --------------------
790AC_DEFUN([LT_FUNC_DLSYM_USCORE],
791[AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl
792if test x"$lt_cv_sys_symbol_underscore" = xyes; then
793 if test x"$libltdl_cv_func_dlopen" = xyes ||
794 test x"$libltdl_cv_lib_dl_dlopen" = xyes ; then
795 AC_CACHE_CHECK([whether we have to add an underscore for dlsym],
796 [libltdl_cv_need_uscore],
797 [libltdl_cv_need_uscore=unknown
798 save_LIBS="$LIBS"
799 LIBS="$LIBS $LIBADD_DLOPEN"
800 _LT_TRY_DLOPEN_SELF(
801 [libltdl_cv_need_uscore=no], [libltdl_cv_need_uscore=yes],
802 [], [libltdl_cv_need_uscore=cross])
803 LIBS="$save_LIBS"
804 ])
805 fi
806fi
807
808if test x"$libltdl_cv_need_uscore" = xyes; then
809 AC_DEFINE([NEED_USCORE], [1],
810 [Define if dlsym() requires a leading underscore in symbol names.])
811fi
812])# LT_FUNC_DLSYM_USCORE
813
814# Old name:
815AU_ALIAS([AC_LTDL_DLSYM_USCORE], [LT_FUNC_DLSYM_USCORE])
816dnl aclocal-1.4 backwards compatibility:
817dnl AC_DEFUN([AC_LTDL_DLSYM_USCORE], [])