anchor.diff: -{ lib, fetchdarcs, pythonPackages, libvncserver, zlib
  +{ lib, fetchdarcs, python2Packages, libvncserver, zlib
   , gnutls, libvpx, makeDesktopItem, mkDerivationWith }:
   
  -mkDerivationWith pythonPackages.buildPythonApplication rec {
  +mkDerivationWith python2Packages.buildPythonApplication rec {
   
     pname = "blink";
     version = "3.2.0";
  
positive.code:     sed -i 's|@out@|'"''${out}"'|g' blink/resources.py
    '';
  
    propagatedBuildInputs = with pythonPackages; [
      pyqt5_with_qtwebkit
      cjson
      sipsimple
  
negative.code:   ];
  
    buildInputs = [
      python2Packages.cython
      zlib
      libvncserver
      libvpx
  