When the doc use flag is disabled, libXcm still requires doxygen to be installed. However, doxygen is not needed for the regular system build. Reproducible: Always Steps to Reproduce: Attempt to install libXcm with USE=-doc, and notice it requires doxygen. Expected Results: Doxygen is not required as it isn't used.
Created attachment 342066 [details, diff] Patch to fix dependencies
24 Jun 2013; Michael Weber <xmw@gentoo.org> -libXcm-0.5.1.ebuild, + -libXcm-0.5.2.ebuild, libXcm-0.5.2-r1.ebuild: + fix docygen dependency (bug 461778, thanks Matthew Dawson), drop old. +