anchor.diff:    python3WithPackages = python3.withPackages(ps: with ps; [
       ply jinja2 setuptools
     ]);
  +  clangFormatPython3 = fetchurl {
  +    url = "https://chromium.googlesource.com/chromium/tools/build/+/e77882e0dde52c2ccf33c5570929b75b4a2a2522/recipes/recipe_modules/chromium/resources/clang-format?format=TEXT";
  +    sha256 = "0ic3hn65dimgfhakli1cyf9j3cxcqsf1qib706ihfhmlzxf7256l";
  +  };
   
     # The additional attributes for creating derivations based on the chromium
     # source tree.
  
positive.code: 
  # Native build inputs:
  , ninja, pkg-config
  , python2, python3, perl
  , gnutar, which
  , llvmPackages
  # postPatch:
  
negative.code: 
      nativeBuildInputs = [
        ninja pkg-config
        python3WithPackages perl
        gnutar which
        llvmPackages.bintools
      ];
  