x11-drivers/ati-drivers-12.11_beta requires app-arch/zip (for unpacking) and media-libs/glu and in order to build, but they're not dependencies. Reproducible: Always
See bug #437016 and bug #437720
Closing this as a dupe of the first bug. The second bug has a tracker (https://bugs.gentoo.org/show_bug.cgi?id=432516) so will get sufficient attention on its own. *** This bug has been marked as a duplicate of bug 437016 ***