[23:29:37] peratu@fujitsu ~ $ egoboo Initializing filesystem services... Game directories are: Binaries: /games/ Data: /usr/share/games/egoboo User Data: /home/peratu/.egoboo-2.x Config Files: /etc/games/egoboo egoboo: symbol lookup error: egoboo: undefined symbol: SDL_NumJoysticks [23:29:44] peratu@fujitsu ~ $ After remerging media-libs/libsdl with joystick USE flag enabled, it works.