zbox ~ # emerge -auDN --with-bdeps=y @world

These are the packages that would be merged, in order:

Calculating dependencies... done!

WARNING: One or more updates/rebuilds have been skipped due to a dependency conflict:

app-crypt/qca:2

  app-crypt/qca-2.1.3-r2:2/2::nokit, ebuild scheduled for merge conflicts with
    app-crypt/qca:2[qt5] required by net-libs/libktorrent-2.1:5/5::kde-kit, installed
                    ^^^ 
    app-crypt/qca:2[qt5] required by net-irc/konversation-1.7.4:5/5::kde-kit, installed
                    ^^^ 


Nothing to merge; quitting.