anchor.diff: -{ stdenv, fetchurl, xorg, xorgserver, qt4, mesa, geis  }:
  +{ stdenv, fetchurl, xorg, xorgserver, qt4, mesa, geis, qmake4Hook }:
   
   stdenv.mkDerivation rec {
     name = "touchegg-${version}";
  
positive.code:     license = stdenv.lib.licenses.gpl2;
      platforms = stdenv.lib.platforms.linux;
    };
  }
negative.code: 
    buildInputs = [ xorgserver mesa xorg.libX11 xorg.libXtst xorg.libXext qt4 geis ];
  
    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)
    '';
  
    meta = {
  