anchor.diff:      optionalString;
   in
   stdenv.mkDerivation rec {
  -  name = "freetype-2.6.5";
  +  name = "freetype-2.7";
   
     src = fetchurl {
       urls = [
  
positive.code:       "mirror://sourceforge/freetype/${name}.tar.bz2"
      ];
      hashOutput = false;
      sha256 = "e20a6e1400798fd5e3d831dd821b61c35b1f9a6465d6b18a53a9df4cf441acf0";
    };
  
    buildInputs = [
  
negative.code:     #      https://github.com/archfan/infinality_bundle, provides
      #      updated versions of the patches.
      (fetchTritonPatch {
        rev = "4a158da85dc6d434cf7a441f3714cde13d0e0d39";
        file = "f/freetype2/0001-Enable-table-validation-modules.patch";
        sha256 = "6d273254fd925d284e5f66e3861eaef69a4393f34872398b2c93af0d5e15d34e";
      })
      (fetchTritonPatch {
        rev = "4a158da85dc6d434cf7a441f3714cde13d0e0d39";
        file = "f/freetype2/0002-infinality-2.7-2016.09.09.patch";
        sha256 = "cde2053ec4d5d31147138bd9775b53280592d6e7c4685747344608c0c7137e67";
      })
    ];
  
  