NIXPKG1 http://nix.cs.uu.nl/dist/nix/nixpkgs-0.9/MANIFEST docbook-xml-4.3 i686-freebsd /nix/store/2g0nrsg0psl0ypj1d33wvbqnvh3ypp98-docbook-xml-4.3.drv /nix/store/r1lc75xqza7zai9j8za8av4w15hsc6dv-docbook-xml-4.3