NIXPKG1 http://nix.cs.uu.nl/dist/nix/nixpkgs-0.10/MANIFEST flex-2.5.33 i686-linux /nix/store/bv9vpf3fy03pky2mzkk1yzy51p7625ah-flex-2.5.33.drv /nix/store/04pd364hk961x6yvm7nk2x1dikxfqq9r-flex-2.5.33