anchor.diff:  
     };
   
  -  kde4 = kde43;
  +  kde4 = kde44;
     
     kde43 = makeOverridable (import ../desktops/kde-4.3) (pkgs // {
       openexr = openexr_1_6_1;
  
positive.code:   ktorrent = import ../tools/networking/p2p/ktorrent {
      inherit fetchurl stdenv pkgconfig boost
        xlibs zlib libpng libjpeg perl gmp cmake gettext;
      kde = kde43;
    };
  
    less = import ../tools/misc/less {
  
negative.code:     virtualbox = import ../applications/virtualization/virtualbox {
        stdenv = stdenv_32bit;
        inherit fetchurl lib iasl dev86 libxslt libxml2 SDL hal
            libcap libpng zlib kernel python which alsaLib curl glib qt4;
        inherit (xlibs) xproto libX11 libXext libXcursor;
        inherit (gnome) libIDL;
      };
  