anchor.diff:  
     bootstrapHash =
       if stdenv.system == "x86_64-linux"
  -    then "1v7jvwigb29m15wilzcrk5jmlpaccpzbkhlzf7z5qw08320gvc91"
  +    then "1d5h34dkm1r1ff562szygn9xk2qll1pjryvypl0lazzanxdh5gv5"
       else throw "missing bootstrap hash for platform ${stdenv.system}";
   
     needsPatchelf = stdenv.isLinux;
  
positive.code:       license = [ licenses.mit licenses.asl20 ];
      };
  
      buildInputs = [ makeWrapper ];
      phases = ["unpackPhase" "installPhase"];
  
      installPhase = ''
  
negative.code:      sha256 = bootstrapHash;
    };
  
    version = "2017-03-16";
  in
  
  rec {
  