I suggest to obsolete the 4.6.4 versions of

task-kde4

task-kde4-minimal

task-kde4-debug

as to match the new package fragmentation of KDE 4.6.90.

(Just removing them orphans packages, and unorphaning them is annoying.)

I am already cursing the whole KDE f*ing team for the new fragmentation, because this affects *all* the packages that have

BuildRequires:    kdegraphics4-devel

and I still don't know what the correct BuildRequires would be under 4.6.90.

(I am impatiently waiting for Win8, maybe this would alleviate my pains with Linux.)

R-C aka beranger