anchor.diff:  
     buildInputs = [ xorgserver mesa xorg.libX11 xorg.libXtst xorg.libXext qt4 geis ];
   
  -  configurePhase = ''
  +  nativeBuildInputs = [ qmake4Hook ];
  +
  +  preConfigure = ''
       sed -e "s@/usr/@$out/@g" -i $(find . -name touchegg.pro)
       sed -e "s@/usr/@$out/@g" -i $(find ./src/touchegg/config/ -name Config.cpp)
  -    qmake touchegg.pro
     '';
   
     meta = {
  
positive.code:     license = stdenv.lib.licenses.gpl2;
      platforms = stdenv.lib.platforms.linux;
    };
  }
negative.code: { stdenv, fetchurl, xorg, xorgserver, qt4, mesa, geis, qmake4Hook }:
  
  stdenv.mkDerivation rec {
    name = "touchegg-${version}";
  