{stdenv, fetchurl, cxxSupport ? true, compat185 ? true}:

stdenv.mkDerivation {
  name = "db4-4.4.20";
  
  builder = ./builder.sh;
  
  src = fetchurl {
    urls = [
      http://download.oracle.com/berkeley-db/db-4.4.20.NC.tar.gz
      http://nixos.org/tarballs/db-4.4.20.NC.tar.gz
    ];
    md5 = "afd9243ea353bbaa04421488d3b37900";
  };
  
  configureFlags = [
    (if cxxSupport then "--enable-cxx" else "--disable-cxx")
    (if compat185 then "--enable-compat185" else "--disable-compat185")
  ];

  patches = [ ./cygwin-4.4.patch ];
}