llancan ~ # emerge -avutND world These are the packages that would be merged, in reverse order: Calculating world dependencies - !!! Ebuilds for the following packages are either all !!! masked or don't exist: x11-themes/gtk-engines-qt media-sound/xmms media-libs/win32codecs net-www/nspluginwrapper ... done! [blocks B ] >=kde-base/kdelibs-3.5.4-r2 (is blocking kde-base/kde-env-3-r4) [blocks B ] kde-base/kde-env (is blocking kde-base/kdelibs-3.5.5-r5) [blocks B ]