NixOS/nixpkgs — pull request #3543 by jwiegley (2014-08-11 16:37:32+00:00)
Title: Remove gccApple from nixpkgs

I'm not sure if I'm doing the right thing in all places, so I'm just opening this for review. We can't use `gccApple` on Darwin anymore, so it will ease confusion just to remove it entirely.