anchor.diff: -{ lib, stdenv, fetchFromGitHub, cmake, fetchpatch
  +{ lib
  +, stdenv
  +, fetchFromGitHub
  +, cmake
  +, fetchpatch
   , staticOnly ? stdenv.hostPlatform.isStatic
   }:
   
  
positive.code:           in the following internet draft:
            http://www.ietf.org/id/draft-alakuijala-brotli
        '';
  
      license = licenses.mit;
      maintainers = with maintainers; [ freezeboy ];
      platforms = platforms.all;
  
negative.code:   src = fetchFromGitHub {
      owner = "google";
      repo = "brotli";
      rev = "v${version}";
      sha256 = "z6Dhrabav1MDQ4rAcXaDv0aN+qOoh9cvoXZqEWBB13c=";
    };
  
  