The symptom of not including this is strange; with autoconf 2.67, some
of the libtool variables in config.status are incorrectly quoted and
configure crashes.
dnl use system-wide libtool, if it exists
AC_ARG_WITH(system-libtool,
[ --with-system-libtool Use the libtool installed in your system (default=use our own)],
-[ AC_PATH_PROG(LIBTOOL, libtool,,$PATH:/usr/local/bin) ],
+[ AC_PATH_PROG(LIBTOOL, libtool,,$PATH:/usr/local/bin) AC_LIBTOOL_DLOPEN
+AC_PROG_LIBTOOL],
[
LIBTOOL="`pwd`/libtool"
AC_SUBST(LIBTOOL)