Finally! After more than two days compiling, KDE 3.3 is ready to use. From I remember, it took much longer than KDE 3.2.3, but like every other releases, it worth every second. I used Gentoo’s KDE ebuild which is still masked. The build was smooth, I literally just unmask the related KDE packages and typed
emerge -DU world. The rest was waiting for emerge to finish.
This is how I unmask them from /etc/portage/packages.keywords:
Those are taken from the always excellent and helpful Gentoo Forum.
After that it took less than one hour to remove all the old KDE from my installation (Gentoo allows two versions of KDE to coexist). I had to hunt all the packages that depends on the old KDE, and to track down other KDE related software that I installed manually.