anchor.diff:  
     configureFlags = [
       "--enable-overlays"
  -    "--disable-dependency-tracking"   # speeds up one-time build
       "--with-pic"
       "--with-tls"
       "--with-cyrus-sasl"
  
positive.code:   ];
  in
  stdenv.mkDerivation rec {
    name = "openldap-2.4.47";
  
    src = fetchurl {
      urls = map (n: "${n}.tgz") (fileUrls name);
      multihash = "Qmf5AeXRaN84o9Q4TMp2vi4qxuJAUUFp99CM5YZV7bauiu";
      hashOutput = false;
      sha256 = "f54c5877865233d9ada77c60c0f69b3e0bfd8b1b55889504c650047cc305520b";
    };
  
    nativeBuildInputs = [
  
negative.code:   buildInputs = [
      cyrus-sasl
      db
      icu
      openssl
    ];
  
  