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diff --git a/m4/ltdl.m4 b/m4/ltdl.m4
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+# ltdl.m4 - Configure ltdl for the target system. -*-Autoconf-*-
+#
+# Copyright (C) 1999-2006, 2007, 2008 Free Software Foundation, Inc.
+# Written by Thomas Tanner, 1999
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 15 LTDL_INIT
+
+# LT_CONFIG_LTDL_DIR(DIRECTORY, [LTDL-MODE])
+# ------------------------------------------
+# DIRECTORY contains the libltdl sources. It is okay to call this
+# function multiple times, as long as the same DIRECTORY is always given.
+AC_DEFUN([LT_CONFIG_LTDL_DIR],
+[AC_BEFORE([$0], [LTDL_INIT])
+_$0($*)
+])# LT_CONFIG_LTDL_DIR
+
+# We break this out into a separate macro, so that we can call it safely
+# internally without being caught accidentally by the sed scan in libtoolize.
+m4_defun([_LT_CONFIG_LTDL_DIR],
+[dnl remove trailing slashes
+m4_pushdef([_ARG_DIR], m4_bpatsubst([$1], [/*$]))
+m4_case(_LTDL_DIR,
+ [], [dnl only set lt_ltdl_dir if _ARG_DIR is not simply `.'
+ m4_if(_ARG_DIR, [.],
+ [],
+ [m4_define([_LTDL_DIR], _ARG_DIR)
+ _LT_SHELL_INIT([lt_ltdl_dir=']_ARG_DIR['])])],
+ [m4_if(_ARG_DIR, _LTDL_DIR,
+ [],
+ [m4_fatal([multiple libltdl directories: `]_LTDL_DIR[', `]_ARG_DIR['])])])
+m4_popdef([_ARG_DIR])
+])# _LT_CONFIG_LTDL_DIR
+
+# Initialise:
+m4_define([_LTDL_DIR], [])
+
+
+# _LT_BUILD_PREFIX
+# ----------------
+# If Autoconf is new enough, expand to `${top_build_prefix}', otherwise
+# to `${top_builddir}/'.
+m4_define([_LT_BUILD_PREFIX],
+[m4_ifdef([AC_AUTOCONF_VERSION],
+ [m4_if(m4_version_compare(m4_defn([AC_AUTOCONF_VERSION]), [2.62]),
+ [-1], [m4_ifdef([_AC_HAVE_TOP_BUILD_PREFIX],
+ [${top_build_prefix}],
+ [${top_builddir}/])],
+ [${top_build_prefix}])],
+ [${top_builddir}/])[]dnl
+])
+
+
+# LTDL_CONVENIENCE
+# ----------------
+# sets LIBLTDL to the link flags for the libltdl convenience library and
+# LTDLINCL to the include flags for the libltdl header and adds
+# --enable-ltdl-convenience to the configure arguments. Note that
+# AC_CONFIG_SUBDIRS is not called here. LIBLTDL will be prefixed with
+# '${top_build_prefix}' if available, otherwise with '${top_builddir}/',
+# and LTDLINCL will be prefixed with '${top_srcdir}/' (note the single
+# quotes!). If your package is not flat and you're not using automake,
+# define top_build_prefix, top_builddir, and top_srcdir appropriately
+# in your Makefiles.
+AC_DEFUN([LTDL_CONVENIENCE],
+[AC_BEFORE([$0], [LTDL_INIT])dnl
+dnl Although the argument is deprecated and no longer documented,
+dnl LTDL_CONVENIENCE used to take a DIRECTORY orgument, if we have one
+dnl here make sure it is the same as any other declaration of libltdl's
+dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
+dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
+m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
+_$0()
+])# LTDL_CONVENIENCE
+
+# AC_LIBLTDL_CONVENIENCE accepted a directory argument in older libtools,
+# now we have LT_CONFIG_LTDL_DIR:
+AU_DEFUN([AC_LIBLTDL_CONVENIENCE],
+[_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
+_LTDL_CONVENIENCE])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBLTDL_CONVENIENCE], [])
+
+
+# _LTDL_CONVENIENCE
+# -----------------
+# Code shared by LTDL_CONVENIENCE and LTDL_INIT([convenience]).
+m4_defun([_LTDL_CONVENIENCE],
+[case $enable_ltdl_convenience in
+ no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
+ "") enable_ltdl_convenience=yes
+ ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
+esac
+LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdlc.la"
+LTDLDEPS=$LIBLTDL
+LTDLINCL='-I${top_srcdir}'"${lt_ltdl_dir+/$lt_ltdl_dir}"
+
+AC_SUBST([LIBLTDL])
+AC_SUBST([LTDLDEPS])
+AC_SUBST([LTDLINCL])
+
+# For backwards non-gettext consistent compatibility...
+INCLTDL="$LTDLINCL"
+AC_SUBST([INCLTDL])
+])# _LTDL_CONVENIENCE
+
+
+# LTDL_INSTALLABLE
+# ----------------
+# sets LIBLTDL to the link flags for the libltdl installable library
+# and LTDLINCL to the include flags for the libltdl header and adds
+# --enable-ltdl-install to the configure arguments. Note that
+# AC_CONFIG_SUBDIRS is not called from here. If an installed libltdl
+# is not found, LIBLTDL will be prefixed with '${top_build_prefix}' if
+# available, otherwise with '${top_builddir}/', and LTDLINCL will be
+# prefixed with '${top_srcdir}/' (note the single quotes!). If your
+# package is not flat and you're not using automake, define top_build_prefix,
+# top_builddir, and top_srcdir appropriately in your Makefiles.
+# In the future, this macro may have to be called after LT_INIT.
+AC_DEFUN([LTDL_INSTALLABLE],
+[AC_BEFORE([$0], [LTDL_INIT])dnl
+dnl Although the argument is deprecated and no longer documented,
+dnl LTDL_INSTALLABLE used to take a DIRECTORY orgument, if we have one
+dnl here make sure it is the same as any other declaration of libltdl's
+dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
+dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
+m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
+_$0()
+])# LTDL_INSTALLABLE
+
+# AC_LIBLTDL_INSTALLABLE accepted a directory argument in older libtools,
+# now we have LT_CONFIG_LTDL_DIR:
+AU_DEFUN([AC_LIBLTDL_INSTALLABLE],
+[_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
+_LTDL_INSTALLABLE])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBLTDL_INSTALLABLE], [])
+
+
+# _LTDL_INSTALLABLE
+# -----------------
+# Code shared by LTDL_INSTALLABLE and LTDL_INIT([installable]).
+m4_defun([_LTDL_INSTALLABLE],
+[if test -f $prefix/lib/libltdl.la; then
+ lt_save_LDFLAGS="$LDFLAGS"
+ LDFLAGS="-L$prefix/lib $LDFLAGS"
+ AC_CHECK_LIB([ltdl], [lt_dlinit], [lt_lib_ltdl=yes])
+ LDFLAGS="$lt_save_LDFLAGS"
+ if test x"${lt_lib_ltdl-no}" = xyes; then
+ if test x"$enable_ltdl_install" != xyes; then
+ # Don't overwrite $prefix/lib/libltdl.la without --enable-ltdl-install
+ AC_MSG_WARN([not overwriting libltdl at $prefix, force with `--enable-ltdl-install'])
+ enable_ltdl_install=no
+ fi
+ elif test x"$enable_ltdl_install" = xno; then
+ AC_MSG_WARN([libltdl not installed, but installation disabled])
+ fi
+fi
+
+# If configure.ac declared an installable ltdl, and the user didn't override
+# with --disable-ltdl-install, we will install the shipped libltdl.
+case $enable_ltdl_install in
+ no) ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
+ LIBLTDL="-lltdl"
+ LTDLDEPS=
+ LTDLINCL=
+ ;;
+ *) enable_ltdl_install=yes
+ ac_configure_args="$ac_configure_args --enable-ltdl-install"
+ LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdl.la"
+ LTDLDEPS=$LIBLTDL
+ LTDLINCL='-I${top_srcdir}'"${lt_ltdl_dir+/$lt_ltdl_dir}"
+ ;;
+esac
+
+AC_SUBST([LIBLTDL])
+AC_SUBST([LTDLDEPS])
+AC_SUBST([LTDLINCL])
+
+# For backwards non-gettext consistent compatibility...
+INCLTDL="$LTDLINCL"
+AC_SUBST([INCLTDL])
+])# LTDL_INSTALLABLE
+
+
+# _LTDL_MODE_DISPATCH
+# -------------------
+m4_define([_LTDL_MODE_DISPATCH],
+[dnl If _LTDL_DIR is `.', then we are configuring libltdl itself:
+m4_if(_LTDL_DIR, [],
+ [],
+ dnl if _LTDL_MODE was not set already, the default value is `subproject':
+ [m4_case(m4_default(_LTDL_MODE, [subproject]),
+ [subproject], [AC_CONFIG_SUBDIRS(_LTDL_DIR)
+ _LT_SHELL_INIT([lt_dlopen_dir="$lt_ltdl_dir"])],
+ [nonrecursive], [_LT_SHELL_INIT([lt_dlopen_dir="$lt_ltdl_dir"; lt_libobj_prefix="$lt_ltdl_dir/"])],
+ [recursive], [],
+ [m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])dnl
+dnl Be careful not to expand twice:
+m4_define([$0], [])
+])# _LTDL_MODE_DISPATCH
+
+
+# _LT_LIBOBJ(MODULE_NAME)
+# -----------------------
+# Like AC_LIBOBJ, except that MODULE_NAME goes into _LT_LIBOBJS instead
+# of into LIBOBJS.
+AC_DEFUN([_LT_LIBOBJ], [
+ m4_pattern_allow([^_LT_LIBOBJS$])
+ AS_LITERAL_IF([$1], [_LT_LIBSOURCES([$1.c])])dnl
+ _LT_LIBOBJS="$_LT_LIBOBJS $1.$ac_objext"
+])# _LT_LIBOBJS
+
+
+# _LT_LIBSOURCES(MODULE_NAMES)
+# ----------------------------
+# Like AC_LIBSOURCES, except the directory where the libltdl source files
+# are expected is distinct from the user LIBOBJ directory.
+AC_DEFUN([_LT_LIBSOURCES], [
+ m4_foreach([_LTNAME], [$1], [
+ m4_syscmd([test -r "$lt_libobj_prefix]_LTNAME[" ||
+ test -z "$lt_libobj_prefix" ||
+ test ! -d "$lt_libobj_prefix"])dnl
+ m4_if(m4_sysval, [0], [],
+ [AC_FATAL([missing $lt_libobj_prefix/]_LTNAME)])
+ ])
+])# _LT_LIBSOURCES
+
+
+# LTDL_INIT([OPTIONS])
+# --------------------
+# Clients of libltdl can use this macro to allow the installer to
+# choose between a shipped copy of the ltdl sources or a preinstalled
+# version of the library. If the shipped ltdl sources are not in a
+# subdirectory named libltdl, the directory name must be given by
+# LT_CONFIG_LTDL_DIR.
+AC_DEFUN([LTDL_INIT],
+[dnl Parse OPTIONS
+_LT_SET_OPTIONS([$0], [$1])
+
+dnl We need to keep our own list of libobjs separate from our parent project,
+dnl and the easiest way to do that is redefine the AC_LIBOBJs macro while
+dnl we look for our own LIBOBJs. Definitions in ltdl-libobj.m4.
+m4_pushdef([AC_LIBOBJ], m4_defn([_LT_LIBOBJ]))
+m4_pushdef([AC_LIBSOURCES], m4_defn([_LT_LIBSOURCES]))
+
+dnl If not otherwise defined, default to the 1.5.x compatible subproject mode:
+m4_if(_LTDL_MODE, [],
+ [m4_define([_LTDL_MODE], m4_default([$2], [subproject]))
+ m4_if([-1], [m4_bregexp(_LTDL_MODE, [\(subproject\|\(non\)?recursive\)])],
+ [m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])
+
+AC_ARG_WITH([included_ltdl],
+ [AS_HELP_STRING([--with-included-ltdl],
+ [use the GNU ltdl sources included here])])
+
+if test "x$with_included_ltdl" != xyes; then
+ # We are not being forced to use the included libltdl sources, so
+ # decide whether there is a useful installed version we can use.
+ AC_CHECK_HEADER([ltdl.h],
+ [AC_CHECK_DECL([lt_dlinterface_register],
+ [AC_CHECK_LIB([ltdl], [lt_dlinterface_register],
+ [with_included_ltdl=no],
+ [with_included_ltdl=yes])],
+ [with_included_ltdl=yes],
+ [AC_INCLUDES_DEFAULT
+ #include <ltdl.h>])],
+ [with_included_ltdl=yes],
+ [AC_INCLUDES_DEFAULT]
+ )
+fi
+
+dnl If neither LT_CONFIG_LTDL_DIR, LTDL_CONVENIENCE nor LTDL_INSTALLABLE
+dnl was called yet, then for old times' sake, we assume libltdl is in an
+dnl eponymous directory:
+AC_PROVIDE_IFELSE([LT_CONFIG_LTDL_DIR], [], [_LT_CONFIG_LTDL_DIR([libltdl])])
+
+AC_ARG_WITH([ltdl_include],
+ [AS_HELP_STRING([--with-ltdl-include=DIR],
+ [use the ltdl headers installed in DIR])])
+
+if test -n "$with_ltdl_include"; then
+ if test -f "$with_ltdl_include/ltdl.h"; then :
+ else
+ AC_MSG_ERROR([invalid ltdl include directory: `$with_ltdl_include'])
+ fi
+else
+ with_ltdl_include=no
+fi
+
+AC_ARG_WITH([ltdl_lib],
+ [AS_HELP_STRING([--with-ltdl-lib=DIR],
+ [use the libltdl.la installed in DIR])])
+
+if test -n "$with_ltdl_lib"; then
+ if test -f "$with_ltdl_lib/libltdl.la"; then :
+ else
+ AC_MSG_ERROR([invalid ltdl library directory: `$with_ltdl_lib'])
+ fi
+else
+ with_ltdl_lib=no
+fi
+
+case ,$with_included_ltdl,$with_ltdl_include,$with_ltdl_lib, in
+ ,yes,no,no,)
+ m4_case(m4_default(_LTDL_TYPE, [convenience]),
+ [convenience], [_LTDL_CONVENIENCE],
+ [installable], [_LTDL_INSTALLABLE],
+ [m4_fatal([unknown libltdl build type: ]_LTDL_TYPE)])
+ ;;
+ ,no,no,no,)
+ # If the included ltdl is not to be used, then use the
+ # preinstalled libltdl we found.
+ AC_DEFINE([HAVE_LTDL], [1],
+ [Define this if a modern libltdl is already installed])
+ LIBLTDL=-lltdl
+ LTDLDEPS=
+ LTDLINCL=
+ ;;
+ ,no*,no,*)
+ AC_MSG_ERROR([`--with-ltdl-include' and `--with-ltdl-lib' options must be used together])
+ ;;
+ *) with_included_ltdl=no
+ LIBLTDL="-L$with_ltdl_lib -lltdl"
+ LTDLDEPS=
+ LTDLINCL="-I$with_ltdl_include"
+ ;;
+esac
+INCLTDL="$LTDLINCL"
+
+# Report our decision...
+AC_MSG_CHECKING([where to find libltdl headers])
+AC_MSG_RESULT([$LTDLINCL])
+AC_MSG_CHECKING([where to find libltdl library])
+AC_MSG_RESULT([$LIBLTDL])
+
+_LTDL_SETUP
+
+dnl restore autoconf definition.
+m4_popdef([AC_LIBOBJ])
+m4_popdef([AC_LIBSOURCES])
+
+AC_CONFIG_COMMANDS_PRE([
+ _ltdl_libobjs=
+ _ltdl_ltlibobjs=
+ if test -n "$_LT_LIBOBJS"; then
+ # Remove the extension.
+ _lt_sed_drop_objext='s/\.o$//;s/\.obj$//'
+ for i in `for i in $_LT_LIBOBJS; do echo "$i"; done | sed "$_lt_sed_drop_objext" | sort -u`; do
+ _ltdl_libobjs="$_ltdl_libobjs $lt_libobj_prefix$i.$ac_objext"
+ _ltdl_ltlibobjs="$_ltdl_ltlibobjs $lt_libobj_prefix$i.lo"
+ done
+ fi
+ AC_SUBST([ltdl_LIBOBJS], [$_ltdl_libobjs])
+ AC_SUBST([ltdl_LTLIBOBJS], [$_ltdl_ltlibobjs])
+])
+
+# Only expand once:
+m4_define([LTDL_INIT])
+])# LTDL_INIT
+
+# Old names:
+AU_DEFUN([AC_LIB_LTDL], [LTDL_INIT($@)])
+AU_DEFUN([AC_WITH_LTDL], [LTDL_INIT($@)])
+AU_DEFUN([LT_WITH_LTDL], [LTDL_INIT($@)])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIB_LTDL], [])
+dnl AC_DEFUN([AC_WITH_LTDL], [])
+dnl AC_DEFUN([LT_WITH_LTDL], [])
+
+
+# _LTDL_SETUP
+# -----------
+# Perform all the checks necessary for compilation of the ltdl objects
+# -- including compiler checks and header checks. This is a public
+# interface mainly for the benefit of libltdl's own configure.ac, most
+# other users should call LTDL_INIT instead.
+AC_DEFUN([_LTDL_SETUP],
+[AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([LT_SYS_MODULE_EXT])dnl
+AC_REQUIRE([LT_SYS_MODULE_PATH])dnl
+AC_REQUIRE([LT_SYS_DLSEARCH_PATH])dnl
+AC_REQUIRE([LT_LIB_DLLOAD])dnl
+AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl
+AC_REQUIRE([LT_FUNC_DLSYM_USCORE])dnl
+AC_REQUIRE([LT_SYS_DLOPEN_DEPLIBS])dnl
+AC_REQUIRE([gl_FUNC_ARGZ])dnl
+
+m4_require([_LT_CHECK_OBJDIR])dnl
+m4_require([_LT_HEADER_DLFCN])dnl
+m4_require([_LT_CHECK_DLPREOPEN])dnl
+m4_require([_LT_DECL_SED])dnl
+
+# lt_cv_dlopen_self gets defined by LT_SYS_DLOPEN_SELF, called by LT_INIT
+if test "$lt_cv_dlopen_self" = yes; then
+ AC_DEFINE([LTDL_DLOPEN_SELF_WORKS], [1],
+ [Define if dlopen(NULL) is able to resolve symbols from the main program.])
+fi
+
+dnl Don't require this, or it will be expanded earlier than the code
+dnl that sets the variables it relies on:
+_LT_ENABLE_INSTALL
+
+dnl _LTDL_MODE specific code must be called at least once:
+_LTDL_MODE_DISPATCH
+
+# In order that ltdl.c can compile, find out the first AC_CONFIG_HEADERS
+# the user used. This is so that ltdl.h can pick up the parent projects
+# config.h file, The first file in AC_CONFIG_HEADERS must contain the
+# definitions required by ltdl.c.
+# FIXME: Remove use of undocumented AC_LIST_HEADERS (2.59 compatibility).
+AC_CONFIG_COMMANDS_PRE([dnl
+m4_pattern_allow([^LT_CONFIG_H$])dnl
+m4_ifset([AH_HEADER],
+ [LT_CONFIG_H=AH_HEADER],
+ [m4_ifset([AC_LIST_HEADERS],
+ [LT_CONFIG_H=`echo "AC_LIST_HEADERS" | $SED 's,^[[ ]]*,,;s,[[ :]].*$,,'`],
+ [])])])
+AC_SUBST([LT_CONFIG_H])
+
+AC_CHECK_HEADERS([unistd.h dl.h sys/dl.h dld.h mach-o/dyld.h dirent.h],
+ [], [], [AC_INCLUDES_DEFAULT])
+
+AC_CHECK_FUNCS([closedir opendir readdir], [], [AC_LIBOBJ([lt__dirent])])
+AC_CHECK_FUNCS([strlcat strlcpy], [], [AC_LIBOBJ([lt__strl])])
+
+name=ltdl
+LTDLOPEN=`eval "\\$ECHO \"$libname_spec\""`
+AC_SUBST([LTDLOPEN])
+])# _LTDL_SETUP
+
+
+# _LT_ENABLE_INSTALL
+# ------------------
+m4_define([_LT_ENABLE_INSTALL],
+[AC_ARG_ENABLE([ltdl-install],
+ [AS_HELP_STRING([--enable-ltdl-install], [install libltdl])])
+
+case ,${enable_ltdl_install},${enable_ltdl_convenience} in
+ *yes*) ;;
+ *) enable_ltdl_convenience=yes ;;
+esac
+
+m4_ifdef([AM_CONDITIONAL],
+[AM_CONDITIONAL(INSTALL_LTDL, test x"${enable_ltdl_install-no}" != xno)
+ AM_CONDITIONAL(CONVENIENCE_LTDL, test x"${enable_ltdl_convenience-no}" != xno)])
+])# _LT_ENABLE_INSTALL
+
+
+# LT_SYS_DLOPEN_DEPLIBS
+# ---------------------
+AC_DEFUN([LT_SYS_DLOPEN_DEPLIBS],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_CACHE_CHECK([whether deplibs are loaded by dlopen],
+ [lt_cv_sys_dlopen_deplibs],
+ [# PORTME does your system automatically load deplibs for dlopen?
+ # or its logical equivalent (e.g. shl_load for HP-UX < 11)
+ # For now, we just catch OSes we know something about -- in the
+ # future, we'll try test this programmatically.
+ lt_cv_sys_dlopen_deplibs=unknown
+ case $host_os in
+ aix3*|aix4.1.*|aix4.2.*)
+ # Unknown whether this is true for these versions of AIX, but
+ # we want this `case' here to explicitly catch those versions.
+ lt_cv_sys_dlopen_deplibs=unknown
+ ;;
+ aix[[4-9]]*)
+ lt_cv_sys_dlopen_deplibs=yes
+ ;;
+ amigaos*)
+ case $host_cpu in
+ powerpc)
+ lt_cv_sys_dlopen_deplibs=no
+ ;;
+ esac
+ ;;
+ darwin*)
+ # Assuming the user has installed a libdl from somewhere, this is true
+ # If you are looking for one http://www.opendarwin.org/projects/dlcompat
+ lt_cv_sys_dlopen_deplibs=yes
+ ;;
+ freebsd* | dragonfly*)
+ lt_cv_sys_dlopen_deplibs=yes
+ ;;
+ gnu* | linux* | k*bsd*-gnu)
+ # GNU and its variants, using gnu ld.so (Glibc)
+ lt_cv_sys_dlopen_deplibs=yes
+ ;;
+ hpux10*|hpux11*)
+ lt_cv_sys_dlopen_deplibs=yes
+ ;;
+ interix*)
+ lt_cv_sys_dlopen_deplibs=yes
+ ;;
+ irix[[12345]]*|irix6.[[01]]*)
+ # Catch all versions of IRIX before 6.2, and indicate that we don't
+ # know how it worked for any of those versions.
+ lt_cv_sys_dlopen_deplibs=unknown
+ ;;
+ irix*)
+ # The case above catches anything before 6.2, and it's known that
+ # at 6.2 and later dlopen does load deplibs.
+ lt_cv_sys_dlopen_deplibs=yes
+ ;;
+ netbsd* | netbsdelf*-gnu)
+ lt_cv_sys_dlopen_deplibs=yes
+ ;;
+ openbsd*)
+ lt_cv_sys_dlopen_deplibs=yes
+ ;;
+ osf[[1234]]*)
+ # dlopen did load deplibs (at least at 4.x), but until the 5.x series,
+ # it did *not* use an RPATH in a shared library to find objects the
+ # library depends on, so we explicitly say `no'.
+ lt_cv_sys_dlopen_deplibs=no
+ ;;
+ osf5.0|osf5.0a|osf5.1)
+ # dlopen *does* load deplibs and with the right loader patch applied
+ # it even uses RPATH in a shared library to search for shared objects
+ # that the library depends on, but there's no easy way to know if that
+ # patch is installed. Since this is the case, all we can really
+ # say is unknown -- it depends on the patch being installed. If
+ # it is, this changes to `yes'. Without it, it would be `no'.
+ lt_cv_sys_dlopen_deplibs=unknown
+ ;;
+ osf*)
+ # the two cases above should catch all versions of osf <= 5.1. Read
+ # the comments above for what we know about them.
+ # At > 5.1, deplibs are loaded *and* any RPATH in a shared library
+ # is used to find them so we can finally say `yes'.
+ lt_cv_sys_dlopen_deplibs=yes
+ ;;
+ qnx*)
+ lt_cv_sys_dlopen_deplibs=yes
+ ;;
+ solaris*)
+ lt_cv_sys_dlopen_deplibs=yes
+ ;;
+ sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+ libltdl_cv_sys_dlopen_deplibs=yes
+ ;;
+ esac
+ ])
+if test "$lt_cv_sys_dlopen_deplibs" != yes; then
+ AC_DEFINE([LTDL_DLOPEN_DEPLIBS], [1],
+ [Define if the OS needs help to load dependent libraries for dlopen().])
+fi
+])# LT_SYS_DLOPEN_DEPLIBS
+
+# Old name:
+AU_ALIAS([AC_LTDL_SYS_DLOPEN_DEPLIBS], [LT_SYS_DLOPEN_DEPLIBS])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LTDL_SYS_DLOPEN_DEPLIBS], [])
+
+
+# LT_SYS_MODULE_EXT
+# -----------------
+AC_DEFUN([LT_SYS_MODULE_EXT],
+[m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
+AC_CACHE_CHECK([which extension is used for runtime loadable modules],
+ [libltdl_cv_shlibext],
+[
+module=yes
+eval libltdl_cv_shlibext=$shrext_cmds
+ ])
+if test -n "$libltdl_cv_shlibext"; then
+ m4_pattern_allow([LT_MODULE_EXT])dnl
+ AC_DEFINE_UNQUOTED([LT_MODULE_EXT], ["$libltdl_cv_shlibext"],
+ [Define to the extension used for runtime loadable modules, say, ".so".])
+fi
+])# LT_SYS_MODULE_EXT
+
+# Old name:
+AU_ALIAS([AC_LTDL_SHLIBEXT], [LT_SYS_MODULE_EXT])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LTDL_SHLIBEXT], [])
+
+
+# LT_SYS_MODULE_PATH
+# ------------------
+AC_DEFUN([LT_SYS_MODULE_PATH],
+[m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
+AC_CACHE_CHECK([which variable specifies run-time module search path],
+ [lt_cv_module_path_var], [lt_cv_module_path_var="$shlibpath_var"])
+if test -n "$lt_cv_module_path_var"; then
+ m4_pattern_allow([LT_MODULE_PATH_VAR])dnl
+ AC_DEFINE_UNQUOTED([LT_MODULE_PATH_VAR], ["$lt_cv_module_path_var"],
+ [Define to the name of the environment variable that determines the run-time module search path.])
+fi
+])# LT_SYS_MODULE_PATH
+
+# Old name:
+AU_ALIAS([AC_LTDL_SHLIBPATH], [LT_SYS_MODULE_PATH])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LTDL_SHLIBPATH], [])
+
+
+# LT_SYS_DLSEARCH_PATH
+# --------------------
+AC_DEFUN([LT_SYS_DLSEARCH_PATH],
+[m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
+AC_CACHE_CHECK([for the default library search path],
+ [lt_cv_sys_dlsearch_path],
+ [lt_cv_sys_dlsearch_path="$sys_lib_dlsearch_path_spec"])
+if test -n "$lt_cv_sys_dlsearch_path"; then
+ sys_dlsearch_path=
+ for dir in $lt_cv_sys_dlsearch_path; do
+ if test -z "$sys_dlsearch_path"; then
+ sys_dlsearch_path="$dir"
+ else
+ sys_dlsearch_path="$sys_dlsearch_path$PATH_SEPARATOR$dir"
+ fi
+ done
+ m4_pattern_allow([LT_DLSEARCH_PATH])dnl
+ AC_DEFINE_UNQUOTED([LT_DLSEARCH_PATH], ["$sys_dlsearch_path"],
+ [Define to the system default library search path.])
+fi
+])# LT_SYS_DLSEARCH_PATH
+
+# Old name:
+AU_ALIAS([AC_LTDL_SYSSEARCHPATH], [LT_SYS_DLSEARCH_PATH])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LTDL_SYSSEARCHPATH], [])
+
+
+# _LT_CHECK_DLPREOPEN
+# -------------------
+m4_defun([_LT_CHECK_DLPREOPEN],
+[m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
+AC_CACHE_CHECK([whether libtool supports -dlopen/-dlpreopen],
+ [libltdl_cv_preloaded_symbols],
+ [if test -n "$lt_cv_sys_global_symbol_pipe"; then
+ libltdl_cv_preloaded_symbols=yes
+ else
+ libltdl_cv_preloaded_symbols=no
+ fi
+ ])
+if test x"$libltdl_cv_preloaded_symbols" = xyes; then
+ AC_DEFINE([HAVE_PRELOADED_SYMBOLS], [1],
+ [Define if libtool can extract symbol lists from object files.])
+fi
+])# _LT_CHECK_DLPREOPEN
+
+
+# LT_LIB_DLLOAD
+# -------------
+AC_DEFUN([LT_LIB_DLLOAD],
+[m4_pattern_allow([^LT_DLLOADERS$])
+LT_DLLOADERS=
+AC_SUBST([LT_DLLOADERS])
+
+AC_LANG_PUSH([C])
+
+LIBADD_DLOPEN=
+AC_SEARCH_LIBS([dlopen], [dl],
+ [AC_DEFINE([HAVE_LIBDL], [1],
+ [Define if you have the libdl library or equivalent.])
+ if test "$ac_cv_search_dlopen" != "none required" ; then
+ LIBADD_DLOPEN="-ldl"
+ fi
+ libltdl_cv_lib_dl_dlopen="yes"
+ LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
+ [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if HAVE_DLFCN_H
+# include <dlfcn.h>
+#endif
+ ]], [[dlopen(0, 0);]])],
+ [AC_DEFINE([HAVE_LIBDL], [1],
+ [Define if you have the libdl library or equivalent.])
+ libltdl_cv_func_dlopen="yes"
+ LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
+ [AC_CHECK_LIB([svld], [dlopen],
+ [AC_DEFINE([HAVE_LIBDL], [1],
+ [Define if you have the libdl library or equivalent.])
+ LIBADD_DLOPEN="-lsvld" libltdl_cv_func_dlopen="yes"
+ LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"])])])
+if test x"$libltdl_cv_func_dlopen" = xyes || test x"$libltdl_cv_lib_dl_dlopen" = xyes
+then
+ lt_save_LIBS="$LIBS"
+ LIBS="$LIBS $LIBADD_DLOPEN"
+ AC_CHECK_FUNCS([dlerror])
+ LIBS="$lt_save_LIBS"
+fi
+AC_SUBST([LIBADD_DLOPEN])
+
+LIBADD_SHL_LOAD=
+AC_CHECK_FUNC([shl_load],
+ [AC_DEFINE([HAVE_SHL_LOAD], [1],
+ [Define if you have the shl_load function.])
+ LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"],
+ [AC_CHECK_LIB([dld], [shl_load],
+ [AC_DEFINE([HAVE_SHL_LOAD], [1],
+ [Define if you have the shl_load function.])
+ LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"
+ LIBADD_SHL_LOAD="-ldld"])])
+AC_SUBST([LIBADD_SHL_LOAD])
+
+case $host_os in
+darwin[[1567]].*)
+# We only want this for pre-Mac OS X 10.4.
+ AC_CHECK_FUNC([_dyld_func_lookup],
+ [AC_DEFINE([HAVE_DYLD], [1],
+ [Define if you have the _dyld_func_lookup function.])
+ LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dyld.la"])
+ ;;
+beos*)
+ LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}load_add_on.la"
+ ;;
+cygwin* | mingw* | os2* | pw32*)
+ AC_CHECK_DECLS([cygwin_conv_path], [], [], [[#include <sys/cygwin.h>]])
+ LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}loadlibrary.la"
+ ;;
+esac
+
+AC_CHECK_LIB([dld], [dld_link],
+ [AC_DEFINE([HAVE_DLD], [1],
+ [Define if you have the GNU dld library.])
+ LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dld_link.la"])
+AC_SUBST([LIBADD_DLD_LINK])
+
+m4_pattern_allow([^LT_DLPREOPEN$])
+LT_DLPREOPEN=
+if test -n "$LT_DLLOADERS"
+then
+ for lt_loader in $LT_DLLOADERS; do
+ LT_DLPREOPEN="$LT_DLPREOPEN-dlpreopen $lt_loader "
+ done
+ AC_DEFINE([HAVE_LIBDLLOADER], [1],
+ [Define if libdlloader will be built on this platform])
+fi
+AC_SUBST([LT_DLPREOPEN])
+
+dnl This isn't used anymore, but set it for backwards compatibility
+LIBADD_DL="$LIBADD_DLOPEN $LIBADD_SHL_LOAD"
+AC_SUBST([LIBADD_DL])
+
+AC_LANG_POP
+])# LT_LIB_DLLOAD
+
+# Old name:
+AU_ALIAS([AC_LTDL_DLLIB], [LT_LIB_DLLOAD])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LTDL_DLLIB], [])
+
+
+# LT_SYS_SYMBOL_USCORE
+# --------------------
+# does the compiler prefix global symbols with an underscore?
+AC_DEFUN([LT_SYS_SYMBOL_USCORE],
+[m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
+AC_CACHE_CHECK([for _ prefix in compiled symbols],
+ [lt_cv_sys_symbol_underscore],
+ [lt_cv_sys_symbol_underscore=no
+ cat > conftest.$ac_ext <<_LT_EOF
+void nm_test_func(){}
+int main(){nm_test_func;return 0;}
+_LT_EOF
+ if AC_TRY_EVAL(ac_compile); then
+ # Now try to grab the symbols.
+ ac_nlist=conftest.nm
+ if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
+ # See whether the symbols have a leading underscore.
+ if grep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
+ lt_cv_sys_symbol_underscore=yes
+ else
+ if grep '^. nm_test_func ' "$ac_nlist" >/dev/null; then
+ :
+ else
+ echo "configure: cannot find nm_test_func in $ac_nlist" >&AS_MESSAGE_LOG_FD
+ fi
+ fi
+ else
+ echo "configure: cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
+ fi
+ else
+ echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
+ cat conftest.c >&AS_MESSAGE_LOG_FD
+ fi
+ rm -rf conftest*
+ ])
+ sys_symbol_underscore=$lt_cv_sys_symbol_underscore
+ AC_SUBST([sys_symbol_underscore])
+])# LT_SYS_SYMBOL_USCORE
+
+# Old name:
+AU_ALIAS([AC_LTDL_SYMBOL_USCORE], [LT_SYS_SYMBOL_USCORE])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LTDL_SYMBOL_USCORE], [])
+
+
+# LT_FUNC_DLSYM_USCORE
+# --------------------
+AC_DEFUN([LT_FUNC_DLSYM_USCORE],
+[AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl
+if test x"$lt_cv_sys_symbol_underscore" = xyes; then
+ if test x"$libltdl_cv_func_dlopen" = xyes ||
+ test x"$libltdl_cv_lib_dl_dlopen" = xyes ; then
+ AC_CACHE_CHECK([whether we have to add an underscore for dlsym],
+ [libltdl_cv_need_uscore],
+ [libltdl_cv_need_uscore=unknown
+ save_LIBS="$LIBS"
+ LIBS="$LIBS $LIBADD_DLOPEN"
+ _LT_TRY_DLOPEN_SELF(
+ [libltdl_cv_need_uscore=no], [libltdl_cv_need_uscore=yes],
+ [], [libltdl_cv_need_uscore=cross])
+ LIBS="$save_LIBS"
+ ])
+ fi
+fi
+
+if test x"$libltdl_cv_need_uscore" = xyes; then
+ AC_DEFINE([NEED_USCORE], [1],
+ [Define if dlsym() requires a leading underscore in symbol names.])
+fi
+])# LT_FUNC_DLSYM_USCORE
+
+# Old name:
+AU_ALIAS([AC_LTDL_DLSYM_USCORE], [LT_FUNC_DLSYM_USCORE])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LTDL_DLSYM_USCORE], [])