diff --git a/cf/dlopen.m4 b/cf/dlopen.m4
new file mode 100644
index 000000000..b02edf257
--- /dev/null
+++ b/cf/dlopen.m4
@@ -0,0 +1,8 @@
+dnl
+dnl $Id$
+dnl
+
+AC_DEFUN([rk_DLOPEN], [
+	AC_FIND_FUNC_NO_LIBS(dlopen, dl)
+	AM_CONDITIONAL(HAVE_DLOPEN, test "$ac_cv_funclib_dlopen" != no)
+])