Some changes in KDE’s svn repository broke some live gentoo ebuilds today…
This happened because some applications (namely ark and nepomuk) now depend on a new package in extragear/libs called libknotificationitem.
I’ve made the necessary modifications in gentoo’s kde-testing overlay to fix the issue by adding a new ebuild for libknotificationitem and adding libknotificationitem DEPEND lines in ark and nepomuk. I also had to revbump plasma-workspace to r1 and block the old ebuild because libknotificationitem had file collisions with it.
So, if you had issues while @live-rebuilding kde4 today, sync your overlay and update
update: libknotificationitem just got moved to kdelibs/experimental