anchor.diff:      # For more inforation, see: https://github.com/apple/swift/pull/3594#issuecomment-234169759
       clang = fetch {
         repo = "swift-clang";
  -      sha256 = "1ap26425zhn2sdw3m9snyrqhi4phv2fgblyv9wp8xppjlnjkax9k";
  +      sha256 = "046p7f4044ls8hhgklsz32md5jvxkaaim1d75n0fmnwap6di3n1q";
       };
       llvm = fetch {
         repo = "swift-llvm";
  
positive.code:     PREFIX=''${out/#\/}
      substituteInPlace swift-corelibs-xctest/build_script.py \
        --replace usr "$PREFIX"
      substituteInPlace swiftpm/Utilities/bootstrap \
        --replace \"usr\" \"$PREFIX\" \
        --replace usr/lib "$PREFIX/lib"
    '';
  
    buildPhase = builder;
  
negative.code: }:
  
  let
    v_base = "5.0.2";
    version = "${v_base}-RELEASE";
    version_friendly = "${v_base}";
  
  