Thank you Mr. MacKinnon:

On Sun, Oct 25, 2009 at 11:05 PM, Alan McKinnon <alan.mckinnon@gmail.com>


Did you try the most straightforward (albeit lengthy) approach:

unmerge all of Qt
emerge world and let portage figure out what it wants to put back


How can I do this? 
 
There is seldom a good reason to have Qt packages in world (dev packages
excepted) and recent changes in the ebuild have caused lots of mutual
blockers. When I first went through this, I saw that almost all qt-* packages
would be rebuilt on my machines. It seemed easier to restart with a clean
slate. I got a blocker notice which said I had to enable various flags, which
I did and the merge completed flawlessly.


I will try to uninstall all "qt-*"  packages.   I'd like to uninstall KDE4 also.

Alan Davis