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