There’s a bug open for this, don’t know the number off hand, but its been pointed out that after an upgrade of perl, we still leave the old .ph files around. Traditionally this has been because they are created after the emerge process, so there’s no simple way to track them. But then it struck me that I’ve written that nifty new perl-cleaner script, with its automagical ph cleanup. So I’m leaving this note, mostly to remind myself, that maybe I can look at incorporating the same process perl-cleaner uses in the pkg_postrm() block…worth trying when I have a few free hours of perl compile time (emerge old perl, add block to new, emerge new perl).