matchbox-desktop-2 wants "meta-fallback", but matchbox-common-0.9.x
defines "fallback" and there is no matchbox-common-2.
Index: libtaku/taku-menu-desktop.c
===================================================================
--- libtaku/taku-menu-desktop.c	(revision 2096)
+++ libtaku/taku-menu-desktop.c	(working copy)
@@ -239,7 +239,7 @@
     /* Find a fallback category */
     if (priv->fallback_category == NULL)
       for (l = matches; *l; l++)
-        if (strcmp (*l, "meta-fallback") == 0)
+        if (strcmp (*l, "fallback") == 0)
           priv->fallback_category = category;
 
   done: