anchor.diff:  }:
   
   let
  -  version = "5.1.0";
  +  version = "5.2.0";
     inherit (lib) optional optionals optionalString;
     mesonFeatureFlag = opt: b:
       "-D${opt}=${if b then "enabled" else "disabled"}";
  
positive.code:     owner = "harfbuzz";
      repo = "harfbuzz";
      rev = version;
      sha256 = "sha256-K6iScmg1vNfwb1UYqtXsnijLVpcC+am2ZL+W5bLFzsI=";
    };
  
    patches = [
      (fetchpatch {
        name = "aarch64-test-narrowing.diff";
        url = "https://github.com/harfbuzz/harfbuzz/commit/04d28d94e576aab099891e6736fd0088dfac3366.diff";
        sha256 = "sha256-099GP8t1G0kyYl79A6xJhfyrs3WXYitvn+He7sEz+Oo=";
      })
    ];
  
    postPatch = ''
      patchShebangs src/*.py test
  
negative.code: { lib
  , stdenv
  , fetchFromGitHub
  , pkg-config
  , glib
  , freetype
  