nixpkgs/pkgs/development/libraries/haskell/graphviz/default.nix

{cabal, colour, fgl, polyparse, transformers} :

cabal.mkDerivation (self : {
  pname = "graphviz";
  version = "2999.11.0.0";
  sha256 = "1ky8hi9vda8hli7dkvsmmbz9j1swkzsn548905asqz0i46kpspnk";
  propagatedBuildInputs = [ colour fgl polyparse transformers ];
  meta = {
    homepage = "http://projects.haskell.org/graphviz/";
    description = "Graphviz bindings for Haskell.";
    license = self.stdenv.lib.licenses.bsd3;
    platforms = self.ghc.meta.platforms;
    maintainers = [ self.stdenv.lib.maintainers.simons ];
  };
})