{ cabal, Cabal, QuickCheck, utilityHt }:

cabal.mkDerivation (self: {
  pname = "non-negative";
  version = "0.1";
  sha256 = "0aebb6f5518191a02b11230798444997a03b84d63d2aaa6c38cac6718f6c351c";
  isLibrary = true;
  isExecutable = true;
  buildDepends = [ Cabal QuickCheck utilityHt ];
  meta = {
    homepage = "http://code.haskell.org/~thielema/non-negative/";
    description = "Non-negative numbers";
    license = "GPL";
    platforms = self.ghc.meta.platforms;
    maintainers = [
      self.stdenv.lib.maintainers.andres
      self.stdenv.lib.maintainers.simons
    ];
  };
})