Hi, this is something I miss since a very loooong time. my distfiles directory is growing about 3 gigabyte, with (of course) containing obsolete duplicates. Unfortunately searching for them (to be deleted) by hand is everything but trivial. Emerge knows about the required information to automatically delete obsolete packages in distfiles and (probably using another flag) obsolete binary packages. Many thanks, Christian Parpart.
*** This bug has been marked as a duplicate of 2567 ***