diff --git a/m4/ltdl.m4 b/m4/ltdl.m4
new file mode 100644
index 0000000..e2d277f
--- /dev/null
+++ b/m4/ltdl.m4
@@ -0,0 +1,516 @@
+## ltdl.m4 - Configure ltdl for the target system. -*-Autoconf-*-
+## Copyright (C) 1999-2004 Free Software Foundation, Inc.
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful, but
+## WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+## General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+##
+## As a special exception to the GNU General Public License, if you
+## distribute this file as part of a program that contains a
+## configuration script generated by Autoconf, you may include it under
+## the same distribution terms that you use for the rest of that program.
+
+# serial 6 AC_LIB_LTDL
+
+# AC_WITH_LTDL([DIRECTORY])
+# -------------------------
+# 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.
+AC_DEFUN([AC_WITH_LTDL],
+[AC_ARG_WITH([included_ltdl],
+    [AC_HELP_STRING([--with-included-ltdl],
+                    [use the GNU ltdl sources included here])])
+
+if test "x$with_included_ltdl" != xyes; then
+  # We are not being forced to use the included libltdl sources, so
+  # decide whether there is a useful installed version we can use.
+  AC_CHECK_HEADER([ltdl.h],
+      [AC_CHECK_LIB([ltdl], [lt_dlcaller_register],
+          [with_included_ltdl=no],
+          [with_included_ltdl=yes])],
+
+      [],
+      [AC_INCLUDES_DEFAULT]
+  )
+fi
+
+if test "x$enable_ltdl_install" != xyes; then
+  # If the user did not specify an installable libltdl, then default
+  # to a convenience lib.
+  AC_LIBLTDL_CONVENIENCE
+fi
+
+if test "x$with_included_ltdl" = xno; then
+  # If the included ltdl is not to be used. then Use the
+  # preinstalled libltdl we found.
+  AC_DEFINE([HAVE_LTDL], 1,
+    [Define this if a modern libltdl is already installed])
+  LIBLTDL=-lltdl
+fi
+
+# Report our decision...
+AC_MSG_CHECKING([whether to use included libltdl])
+AC_MSG_RESULT([$with_included_ltdl])
+
+AC_CONFIG_SUBDIRS(m4_if($#, 1, [$1], [libltdl]))
+])# AC_WITH_LTDL
+
+
+# AC_LIBLTDL_CONVENIENCE([DIRECTORY])
+# -----------------------------------
+# sets LIBLTDL to the link flags for the libltdl convenience library and
+# LTDLINCL to the include flags for the libltdl header and adds
+# --enable-ltdl-convenience to the configure arguments.  Note that LIBLTDL
+# and LTDLINCL are not AC_SUBSTed, nor is AC_CONFIG_SUBDIRS called.  If
+# DIRECTORY is not provided, it is assumed to be `libltdl'.  LIBLTDL will
+# be prefixed with '${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_builddir and
+# top_srcdir appropriately in the Makefiles.
+AC_DEFUN([AC_LIBLTDL_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='${top_builddir}/'m4_if($#, 1, [$1], ['libltdl'])/libltdlc.la
+LTDLINCL='-I${top_srcdir}/'m4_if($#, 1, [$1], ['libltdl'])
+
+AC_SUBST([LIBLTDL])
+AC_SUBST([LTDLINCL])
+
+# For backwards non-gettext consistent compatibility...
+INCLTDL="$LTDLINCL"
+AC_SUBST([INCLTDL])
+])# AC_LIBLTDL_CONVENIENCE
+
+
+# AC_LIBLTDL_INSTALLABLE([DIRECTORY])
+# -----------------------------------
+# 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 LIBLTDL
+# and LTDLINCL are not AC_SUBSTed, nor is AC_CONFIG_SUBDIRS called.  If
+# DIRECTORY is not provided and an installed libltdl is not found, it is
+# assumed to be `libltdl'.  LIBLTDL will be prefixed 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_builddir and top_srcdir appropriately in the Makefiles.
+# In the future, this macro may have to be called after LT_INIT.
+AC_DEFUN([AC_LIBLTDL_INSTALLABLE],
+[AC_CHECK_LIB(ltdl, lt_dlinit,
+  [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],
+  [if test x"$enable_ltdl_install" = xno; then
+     AC_MSG_WARN([libltdl not installed, but installation disabled])
+   else
+     enable_ltdl_install=yes
+   fi
+  ])
+if test x"$enable_ltdl_install" = x"yes"; then
+  ac_configure_args="$ac_configure_args --enable-ltdl-install"
+  LIBLTDL='${top_builddir}/'m4_if($#, 1, [$1], ['libltdl'])/libltdl.la
+  LTDLINCL='-I${top_srcdir}/'m4_if($#, 1, [$1], ['libltdl'])
+else
+  ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
+  LIBLTDL="-lltdl"
+  LTDLINCL=
+fi
+
+AC_SUBST([LIBLTDL])
+AC_SUBST([LTDLINCL])
+
+# For backwards non-gettext consistent compatibility...
+INCLTDL="$LTDLINCL"
+AC_SUBST([INCLTDL])
+])# AC_LIBLTDL_INSTALLABLE
+
+
+# AC_LIB_LTDL
+# -----------
+# Perform all the checks necessary for compilation of the ltdl objects
+#  -- including compiler checks and header checks.
+AC_DEFUN([AC_LIB_LTDL],
+[AC_REQUIRE([AC_PROG_CC])
+AC_REQUIRE([AC_C_CONST])
+AC_REQUIRE([AC_HEADER_STDC])
+AC_REQUIRE([AC_HEADER_DIRENT])
+AC_REQUIRE([_LT_AC_CHECK_DLFCN])
+AC_REQUIRE([AC_LTDL_ENABLE_INSTALL])
+AC_REQUIRE([AC_LTDL_SHLIBEXT])
+AC_REQUIRE([AC_LTDL_SHLIBPATH])
+AC_REQUIRE([AC_LTDL_SYSSEARCHPATH])
+AC_REQUIRE([AC_LTDL_OBJDIR])
+AC_REQUIRE([AC_LTDL_DLPREOPEN])
+AC_REQUIRE([AC_LTDL_DLLIB])
+AC_REQUIRE([AC_LTDL_SYMBOL_USCORE])
+AC_REQUIRE([AC_LTDL_DLSYM_USCORE])
+AC_REQUIRE([AC_LTDL_SYS_DLOPEN_DEPLIBS])
+AC_REQUIRE([gl_FUNC_ARGZ])
+
+# In order that ltdl.c can compile, run AC_CONFIG_HEADERS for the user
+# if they did not call it themself.  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.
+m4_ifset([AC_LIST_HEADERS],
+    [CONFIG_H=`echo "AC_LIST_HEADERS" | $SED 's,^[[ 	]]*,,;s,[[ :]].*$,,'`],
+  [CONFIG_H=config.h;AC_CONFIG_HEADERS([config.h])])
+AC_SUBST([CONFIG_H])
+
+AC_CHECK_HEADERS([memory.h unistd.h dl.h sys/dl.h dld.h mach-o/dyld.h],
+	[], [], [AC_INCLUDES_DEFAULT])
+AC_CHECK_HEADERS([string.h strings.h], [break], [], [AC_INCLUDES_DEFAULT])
+
+AC_CHECK_FUNCS([closedir opendir readdir], [], [AC_LIBOBJ([lt__dirent])])
+])# AC_LIB_LTDL
+
+
+# AC_LTDL_ENABLE_INSTALL
+# ----------------------
+AC_DEFUN([AC_LTDL_ENABLE_INSTALL],
+[AC_ARG_ENABLE([ltdl-install],
+    [AC_HELP_STRING([--enable-ltdl-install], [install libltdl])])
+
+AM_CONDITIONAL(INSTALL_LTDL, test x"${enable_ltdl_install-no}" != xno)
+AM_CONDITIONAL(CONVENIENCE_LTDL, test x"${enable_ltdl_convenience-no}" != xno)
+])])# AC_LTDL_ENABLE_INSTALL
+
+
+# AC_LTDL_SYS_DLOPEN_DEPLIBS
+# --------------------------
+AC_DEFUN([AC_LTDL_SYS_DLOPEN_DEPLIBS],
+[AC_REQUIRE([AC_CANONICAL_HOST])
+AC_CACHE_CHECK([whether deplibs are loaded by dlopen],
+  [libltdl_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.
+  libltdl_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.
+    libltdl_cv_sys_dlopen_deplibs=unknown
+    ;;
+  aix[[45]]*)
+    libltdl_cv_sys_dlopen_deplibs=yes
+    ;;
+  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
+    libltdl_cv_sys_dlopen_deplibs=yes
+    ;;
+  gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
+    # GNU and its variants, using gnu ld.so (Glibc)
+    libltdl_cv_sys_dlopen_deplibs=yes
+    ;;
+  hpux10*|hpux11*)
+    libltdl_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.
+    libltdl_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.
+    libltdl_cv_sys_dlopen_deplibs=yes
+    ;;
+  netbsd*)
+    libltdl_cv_sys_dlopen_deplibs=yes
+    ;;
+  openbsd*)
+    libltdl_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 explictly say `no'.
+    libltdl_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'.
+    libltdl_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'.
+    libltdl_cv_sys_dlopen_deplibs=yes
+    ;;
+  qnx*)
+    libltdl_cv_sys_dlopen_deplibs=yes
+    ;;
+  solaris*)
+    libltdl_cv_sys_dlopen_deplibs=yes
+    ;;
+  esac
+  ])
+if test "$libltdl_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
+])# AC_LTDL_SYS_DLOPEN_DEPLIBS
+
+
+# AC_LTDL_SHLIBEXT
+# ----------------
+AC_DEFUN([AC_LTDL_SHLIBEXT],
+[AC_REQUIRE([AC_LIBTOOL_SYS_DYNAMIC_LINKER])
+AC_CACHE_CHECK([which extension is used for loadable modules],
+  [libltdl_cv_shlibext],
+[
+module=yes
+eval libltdl_cv_shlibext=$shrext_cmds
+  ])
+if test -n "$libltdl_cv_shlibext"; then
+  AC_DEFINE_UNQUOTED(LTDL_SHLIB_EXT, "$libltdl_cv_shlibext",
+    [Define to the extension used for shared libraries, say, ".so".])
+fi
+])# AC_LTDL_SHLIBEXT
+
+
+# AC_LTDL_SHLIBPATH
+# -----------------
+AC_DEFUN([AC_LTDL_SHLIBPATH],
+[AC_REQUIRE([AC_LIBTOOL_SYS_DYNAMIC_LINKER])
+AC_CACHE_CHECK([which variable specifies run-time library path],
+  [libltdl_cv_shlibpath_var], [libltdl_cv_shlibpath_var="$shlibpath_var"])
+if test -n "$libltdl_cv_shlibpath_var"; then
+  AC_DEFINE_UNQUOTED(LTDL_SHLIBPATH_VAR, "$libltdl_cv_shlibpath_var",
+    [Define to the name of the environment variable that determines the dynamic library search path.])
+fi
+])# AC_LTDL_SHLIBPATH
+
+
+# AC_LTDL_SYSSEARCHPATH
+# ---------------------
+AC_DEFUN([AC_LTDL_SYSSEARCHPATH],
+[AC_REQUIRE([AC_LIBTOOL_SYS_DYNAMIC_LINKER])
+AC_CACHE_CHECK([for the default library search path],
+  [libltdl_cv_sys_search_path],
+  [libltdl_cv_sys_search_path="$sys_lib_dlsearch_path_spec"])
+if test -n "$libltdl_cv_sys_search_path"; then
+  sys_search_path=
+  for dir in $libltdl_cv_sys_search_path; do
+    if test -z "$sys_search_path"; then
+      sys_search_path="$dir"
+    else
+      sys_search_path="$sys_search_path$PATH_SEPARATOR$dir"
+    fi
+  done
+  AC_DEFINE_UNQUOTED(LTDL_SYSSEARCHPATH, "$sys_search_path",
+    [Define to the system default library search path.])
+fi
+])# AC_LTDL_SYSSEARCHPATH
+
+
+# AC_LTDL_OBJDIR
+# --------------
+AC_DEFUN([AC_LTDL_OBJDIR],
+[AC_CACHE_CHECK([for objdir],
+  [libltdl_cv_objdir],
+  [libltdl_cv_objdir="$objdir"
+  if test -n "$objdir"; then
+    :
+  else
+    rm -f .libs 2>/dev/null
+    mkdir .libs 2>/dev/null
+    if test -d .libs; then
+      libltdl_cv_objdir=.libs
+    else
+      # MS-DOS does not allow filenames that begin with a dot.
+      libltdl_cv_objdir=_libs
+    fi
+  rmdir .libs 2>/dev/null
+  fi
+  ])
+AC_DEFINE_UNQUOTED(LTDL_OBJDIR, "$libltdl_cv_objdir/",
+  [Define to the sub-directory in which libtool stores uninstalled libraries.])
+])# AC_LTDL_OBJDIR
+
+
+# AC_LTDL_DLPREOPEN
+# -----------------
+AC_DEFUN([AC_LTDL_DLPREOPEN],
+[AC_REQUIRE([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])
+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
+])# AC_LTDL_DLPREOPEN
+
+
+# AC_LTDL_DLLIB
+# -------------
+AC_DEFUN([AC_LTDL_DLLIB],
+[m4_pattern_allow([^LT_DLLOADERS$])
+LT_DLLOADERS=
+AC_SUBST([LT_DLLOADERS])
+
+AC_LANG_PUSH([C])
+
+LIBADD_DLOPEN=
+AC_CHECK_LIB([dl], [dlopen],
+	[AC_DEFINE([HAVE_LIBDL], [1],
+		   [Define if you have the libdl library or equivalent.])
+	LIBADD_DLOPEN="-ldl" libltdl_cv_lib_dl_dlopen="yes"
+	LT_DLLOADERS="$LT_DLLOADERS dlopen.la"],
+    [AC_TRY_LINK([#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="$LT_DLLOADERS dlopen.la"],
+	[AC_CHECK_LIB([svld], [dlopen],
+		[AC_DEFINE([HAVE_LIBDL], [1],
+			 [Define if you have the libdl library or equivalent.])
+	        LIBADD_DLOPEN="-lsvld" libltdl_cv_func_dlopen="yes"
+		LT_DLLOADERS="$LT_DLLOADERS 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="$LT_DLLOADERS shl_load.la"],
+    [AC_CHECK_LIB([dld], [shl_load],
+	    [AC_DEFINE([HAVE_SHL_LOAD], [1],
+		       [Define if you have the shl_load function.])
+	    LT_DLLOADERS="$LT_DLLOADERS shl_load.la"
+	    LIBADD_SHL_LOAD="-ldld"])])
+AC_SUBST([LIBADD_SHL_LOAD])
+
+AC_CHECK_FUNC([_dyld_func_lookup],
+	[AC_DEFINE([HAVE_DYLD], [1],
+		   [Define if you have the _dyld_func_lookup function.])
+	LT_DLLOADERS="$LT_DLLOADERS dyld.la"])
+
+case $host_os in
+beos*)
+  LT_DLLOADERS="$LT_DLLOADERS load_add_on.la"
+  ;;
+cygwin* | mingw* | os2* | pw32*)
+  LT_DLLOADERS="$LT_DLLOADERS loadlibrary.la"
+  ;;
+esac
+
+AC_CHECK_LIB([dld], [dld_link],
+	[AC_DEFINE([HAVE_DLD], [1],
+		   [Define if you have the GNU dld library.])
+		LT_DLLOADERS="$LT_DLLOADERS dld_link.la"])
+AC_SUBST([LIBADD_DLD_LINK])
+
+m4_pattern_allow([^LT_DLPREOPEN$])
+LT_DLPREOPEN=
+for lt_loader in $LT_DLLOADERS; do
+  LT_DLPREOPEN="$LT_DLPREOPEN-dlpreopen loaders/$lt_loader "
+done
+AC_SUBST([LT_DLPREOPEN])
+
+dnl This isn't used anymore, but set it for backwards compatibility
+LIBADD_DL="$LIBADD_DLOPEN $LIBADD_SHL_LOAD"
+AC_SUBST([LIBADD_DL])
+
+AC_LANG_POP
+])# AC_LTDL_DLLIB
+
+
+# AC_LTDL_SYMBOL_USCORE
+# ---------------------
+# does the compiler prefix global symbols with an underscore?
+AC_DEFUN([AC_LTDL_SYMBOL_USCORE],
+[AC_REQUIRE([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])
+AC_CACHE_CHECK([for _ prefix in compiled symbols],
+  [ac_cv_sys_symbol_underscore],
+  [ac_cv_sys_symbol_underscore=no
+  cat > conftest.$ac_ext <<EOF
+void nm_test_func(){}
+int main(){nm_test_func;return 0;}
+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' "$ac_nlist" >/dev/null; then
+        ac_cv_sys_symbol_underscore=yes
+      else
+        if grep '^. nm_test_func ' "$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 $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
+    fi
+  else
+    echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
+    cat conftest.c >&AS_MESSAGE_LOG_FD
+  fi
+  rm -rf conftest*
+  ])
+])# AC_LTDL_SYMBOL_USCORE
+
+
+# AC_LTDL_DLSYM_USCORE
+# --------------------
+AC_DEFUN([AC_LTDL_DLSYM_USCORE],
+[AC_REQUIRE([AC_LTDL_SYMBOL_USCORE])
+if test x"$ac_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 $LIBADD_DLOPEN"
+	  _LT_AC_TRY_DLOPEN_SELF(
+	    [libltdl_cv_need_uscore=no], [libltdl_cv_need_uscore=yes],
+	    [],				 [libltdl_cv_need_uscore=cross])
+	  LIBS="$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
+])# AC_LTDL_DLSYM_USCORE