NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST gcc-3.3.6 i686-linux /nix/store/fc05pcvlw3a1a4p8ym9rri2515crrch5-gcc-3.3.6.drv /nix/store/39qmvs75skadrc7qznh2b8lrhf048via-gcc-3.3.6