anchor.diff:  , lib
   , makeWrapper
   
  +, at-spi2-core
   , exo
   , glib
   , gobject-introspection
   , gtk_3
   , hicolor-icon-theme
   , lightdm
  +, libx11
   , libxklavier
  -, xorg
   }:
   
   let
  
positive.code:     gobject-introspection
      gtk_3
      lightdm
      libxklavier
      xorg.libX11
    ];
  
    configureFlags = [
      "--localstatedir=/var"
  
negative.code:       --prefix XDG_DATA_DIRS ":" "${hicolor-icon-theme}/share"
    '';
  
    meta = with lib; {
      description = "LightDM GTK+ Greeter";
      homepage = http://launchpad.net/lightdm-gtk-greeter;
      license = licenses.gpl3;
      maintainers = with maintainers; [
  