NIXPKG1 http://nix.cs.uu.nl/dist/nix/nixpkgs-0.10/MANIFEST emacs-21.4a i686-linux /nix/store/rvpjqgqck962xiw0wmgba3kki8hs10hc-emacs-21.4a.drv /nix/store/y92prijba74ixc8k0chm1h3xbyk8n3ma-emacs-21.4a