freebsd-ports/multimedia/mkclean/files/patch-root.proj

--- root.proj.orig	2010-09-26 04:42:30.000000000 -0700
+++ root.proj	2010-10-24 01:48:34.000000000 -0700
@@ -12,6 +12,7 @@
   USE matroska2
   USE mkvtests
   USE mkclean
+  USE mkWDclean
   USE mkvalidator
 }