tbb? ( dev-cpp/tbb )
tcl? ( dev-lang/tcl:0= )
tk? ( dev-lang/tk:0= )
video_cards_nvidia? ( media-video/nvidia-settings )
video_cards_nvidia? ( || ( x11-drivers/nvidia-drivers[tools(-)] media-video/nvidia-settings ) )
web? (
${WEBAPP_DEPEND}
python? (