He's not dead, he's resting
Paludis kdebuild-1 Removal
kdebuild-1 was an EAPI used by the Gentoo KDE team and the Genkdesvn project for various live ebuilds in overlays. It was created following a request from the Gentoo KDE project, who needed certain features that Portage had not yet implemented. It was a documented, public standard, in the same way that EAPIs 0, 1 and 2 are.
The Gentoo Council has decided that all mention of the kdebuild-1 EAPI is to be removed from the Package Manager Specification immediately. A request that this be done only after a deprecation period to give users more time to catch up was rejected. As such, support for this EAPI, including support for uninstalling packages with that EAPI, will be removed from Paludis in version 0.44.
Users should verify that they have no kdebuild-1 packages installed. If Paludis was built with the ‘inquisitio’ use flag enabled, you can use:
$ inquisitio -K installed -k EAPI kdebuild-1
$ paludis -q '*/*::/[.EAPI=kdebuild-1]'
and, if any such packages are installed, they must be uninstalled before Paludis is upgraded.