The kde-base/nepomuk-4.3.74 ebuild from the kde-testing overlay defines the following: DEPEND=" || ( >=dev-libs/soprano-2.3.67[clucene,dbus,raptor,java] >=dev-libs/soprano-2.3.67[clucene,dbus,raptor,redland] >=dev-libs/soprano-9999[clucene,dbus,raptor,virtuoso] ) However the dev-libs/soprano-2.3.67 ebuild does not exist in the regular portage tree nor in the kde-testing overlay. Upstream doesn't even have a 2.3.67 release (the highest released version is 2.3.1). Note that there does exist a dev-libs/soprano-9999 svn ebuild. However that is unemergable due to missing keywords. Reproducible: Always
You just have to unmask/keyword soprano-9999. We don't add keywords to live ebuilds to keep them masked. Adding "dev-libs/soprano **" in your package.keywords will unmask the keywordless ebuild.