{cabal} :

cabal.mkDerivation (self : {
  pname = "StateVar";
  version = "1.0.0.0";
  sha256 = "1c1b6a6nn1cdnba08zzp0645wl482h7yaa69zw2l3wwyyyccjic4";
  meta = {
    homepage = "http://www.haskell.org/HOpenGL/";
    description = "State variables";
    license = self.stdenv.lib.licenses.bsd3;
  };
})