I tested the sys-apps/grep-2.5.1-r6.ebuild, it compiles without errors on OSX (FEATURES="-collision-protect" required, though) and seems to be working. ppc-macos keyword should be added. Reproducible: Always Steps to Reproduce: 1. 2. 3.
This depends on bug 67162. Will take a look at it when 67162 has gotten somewhere. Until then, this bug should remain frozen.