anchor.diff:  , buildExamples ? false
   , buildTests ? false
   , developerBuild ? false
  -, gtkStyle ? false, libgnomeui, GConf, gnome_vfs, gtk
  +, gtkStyle ? true, libgnomeui, GConf, gnome_vfs, gtk
   , decryptSslTraffic ? false
   }:
   
   let
     inherit (srcs.qt5) version;
     system-x86_64 = lib.elem stdenv.system lib.platforms.x86_64;
  +
  +  # Search path for Gtk plugin
  +  gtkLibPath = lib.makeLibraryPath [ gtk.out gnome_vfs.out libgnomeui.out GConf.out ];
   
     dontInvalidateBacking = fetchurl {
       url = "https://codereview.qt-project.org/gitweb?p=qt/qtbase.git;a=patch;h=0f68f8920573cdce1729a285a92ac8582df32841;hp=24c50f8dcf7fa61ac3c3d4d6295c259a104a2b8c";
  
positive.code: 
    sourceRoot = "qt-everywhere-opensource-src-${version}";
  
    outputs = [ "dev" "out" ];
  
    postUnpack = ''
      mv qtbase-opensource-src-${version} ./qt-everywhere-opensource-src-${version}/qtbase
  
negative.code:         --replace "@mesa_lib@" "${mesa.out}" \
          --replace "@mesa_inc@" "${mesa.dev}"
      '';
  
  
    setOutputFlags = false;
    preConfigure = ''
  