anchor.diff:  
     qtscriptgenerator = makeOverridable (import ../development/libraries/qtscriptgenerator) {
       inherit stdenv fetchurl;
  -    qt4 = qt45;
  +    qt4 = qt46;
     };
   
     readline = readline6;
  
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:     mysqlSupport = true;
    };
  
    qt4 = qt46;
  
    qt44 = import ../development/libraries/qt-4.4 {
      inherit fetchurl stdenv fetchsvn zlib libjpeg libpng which mysql mesa openssl cups dbus
  