Hello,

after this bug report bugs.gentoo.org/show_bug.cgi?id=391019 a patch has been made for the CMakeLists.txt of the repository.

Here is the issue,
knowledgebase depends on the ocs dataengine which(the ocs dataengine) will not be installed if attica doesn't exist.But
the knowledgebase will be installed and with his dataengine missing the plasmoid will not get any data.

P.S.:the patch is not mine,i am just "pushing".The author of the patch is Andreas K. Hüttel.