Hi Markus! While tweaking some of the mtree stuff to put together the 1.5.2 release, I realized you list explicitly the paths that are allowed in your mtree checks in base/src/port1.0/portdestroot.tcl: set prefixPaths [list bin etc include lib libexec sbin share src var www Applications Developer Library] But we have a very similar list in the base/doc/prefix.mtree file, which is where I thought you were reading your whitelist from. Doesn't it make sense to abstract the list in portdestroot.tcl and read it from that one file? It would allow us to have a single check point we'd need to edit to make whatever appropriate modifications to the hierarchy. -jmpp