media-libs/libmad-0.15.1b-r5 should be masked, as done with media-libs/libogg-1.1.3-r1 and dev-libs/popt-1.14 as it breaks several other pakages depending on the missing .la lib too!
sorry, seems i openened this too quick. All packages regarding this found by revdep-rebuild could have been rebuilt even without libmad.la
just a
dupe *** This bug has been marked as a duplicate of bug 218286 ***