{ mkDerivation, base, fetchurl, ncurses, process, readline }:
mkDerivation {
  pname = "readline";
  version = "1.0.3.0";
  src = fetchurl {
    url = "http://example.org/";
    sha256 = "abc";
  };
  libraryHaskellDepends = [ base process ];
  librarySystemDepends = [ ncurses readline ];
  description = "An interface to the GNU readline library";
  license = "GPL";
}