anchor.diff:      "-DBUILD_TESTING=OFF"
     ];
   
  -  meta = with stdenv.lib; {
  +  meta = with lib; {
       description = "A C++ library that implements commandline flags processing";
       homepage = https://code.google.com/p/gflags/;
       license = licenses.bsd3;
  
positive.code: { stdenv
  , cmake
  , fetchFromGitHub
  , ninja
  }:
  
  let
    version = "2.1.2";
  in
  stdenv.mkDerivation rec {
    name = "gflags-${version}";
  
negative.code:     owner = "gflags";
      repo = "gflags";
      rev = "v${version}";
      sha256 = "43d236421279e56eb4e86bc427b6912712a94ab33ce2618b3dc2eb5e63331432";
    };
  
    nativeBuildInputs = [
  