anchor.diff:    enableParallelBuilding = true;
   
     # NOTE: 2018-05-31: CMake is working but it is not officially supported
  -  nativeBuildInputs = [ makeWrapper pkg-config ];
  +  nativeBuildInputs = [ pkg-config ];
   
     buildInputs = [ boost libtorrent-rasterbar qtbase qttools qtsvg ]
       ++ optional guiSupport dbus # D(esktop)-Bus depends on GUI support
  
positive.code: { mkDerivation, lib, fetchFromGitHub, makeWrapper, pkg-config
  , boost, libtorrent-rasterbar, qtbase, qttools, qtsvg
  , debugSupport ? false
  , guiSupport ? true, dbus ? null # GUI (disable to run headless)
  
negative.code:     ++ optional (!webuiSupport) "--disable-webui"
      ++ optional debugSupport "--enable-debug";
  
    qtWrapperArgs = optional trackerSearch "--prefix PATH : ${makeBinPath [ python3 ]}";
  
    meta = {
      description = "Featureful free software BitTorrent client";
  