{ mkDerivation, base, fetchurl }:
mkDerivation {
  pname = "bindings-uname";
  version = "0.1";
  src = fetchurl {
    url = "http://example.org/";
    sha256 = "abc";
  };
  libraryHaskellDepends = [ base ];
  description = "Low-level binding to POSIX uname(3)";
  license = stdenv.lib.licenses.publicDomain;
}