when kde-base/kdelibs:4.6 are compiled with USE="-opengl", kde-base/smoke:4.6 wouldn't build. the error is: "plasma_includes.h:12:29: fatal error: plasma/glapplet.h: No such file or directory"
Please, attach build logs so we can investigate root cause of the issue. Maybe the opengl is optional and automagically handled...
Created attachment 272355 [details] Build log
Not automagic, not optional, and there are no config options in place to take care of this. I'll add a dependency on kdelibs[opengl], but keep the bug open for now as this has to be fixed upstream. (Unless upstream decides to force opengl use, which is quite possible given the heavy involvment of desktop effects etc...)
Lets look again at this when 4.7 is out.