The "doc" USE flag was dropped between net-analyzer/linkchecker-8.4 and net-analyzer/linkchecker-8.4-r1, documentation is now unconditional. Dependencies for the documentation pull in several Qt libraries. This is completely unacceptable: linkchecker is used as a commandline tool here, scripted in the background, on a server which has no Qt installed at all, not even a GUI. I deleted the doc parts from the 8.4-r1 ebuild, and it emerged fine and ran fine without Qt, so there is no need for Qt.
+ 16 Dec 2013; Justin Lecher <jlec@gentoo.org> linkchecker-8.4-r1.ebuild, + linkchecker-9999.ebuild: + Add conditional to qt deps, #494306 +