I had noticed it a while ago, it appears to be hardmasked:
> > # Jory A. Pratt <[email protected]> (15 Dec 2012) > # PGO is known to be busted with most configurations > www-client/firefox pgo > > I never had a single problem with it, so I'm going to unmask it and > see if anything breaks. > > I just commented that out in /usr/portage/profiles/base/package.use.mask and it compiled fine with pgo and lto using 4.7.2. Ricey...
