See bug #142383 for details.
Can you give a version? Because I cannot find anything similar to what is being patched in the whole kdegraphics-3.5.4 tarball.
Seems to be in 3.2, see URL for the Mandriva report.
A-hem... we're on 3.4 and 3.5 .... I've removed even 3.3 from portage a few days ago...
Thx Diego. Ok, if it is not in 3.5 I'll close this one as INVALID.