NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST swig-1.3.39 x86_64-linux /nix/store/izizwbznqlhvp1q94khrmkcsfjpacgki-swig-1.3.39.drv /nix/store/ld8mwvws315szp8hn016cca8mjz2ybff-swig-1.3.39