Created attachment 315551 [details, diff] ogre-1.7.4-r1.patch shouldn't it depend on "examples" useflag which also controls installation of those samples? same for 1.8.0
Also, when building with "examples" use flag the ebuild doesn't install all files needed by SampleBrowser. plugins.cfg, resources.cfg etc. are missing. You can copy them manually from the $WORKDIR/ogre-1.8.0_build/bin and correct the paths.
that would be an upstream bug too then, no? Since we just use the install rules from the build system
+ 12 Nov 2012; Julian Ospald <hasufell@gentoo.org> ogre-1.8.1.ebuild: + fix bug 421493