NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST bison-2.4.1 i686-linux /nix/store/cgvdavdcqypidck7zphqypq1rvc3kh90-bison-2.4.1.drv /nix/store/6qj7z588gr6g5vdqp8hnxxiz5ipfvv98-bison-2.4.1