media-libs/libsdl2[opengl?
,joystick,sound,video]

alsa?
      ( media-libs/alsa-lib:= )

dumb?
      ( media-libs/dumb:= )

fluidsynth?
      ( media-sound/fluidsynth:= )

mad?
      ( media-libs/libmad )

net?
      ( media-libs/sdl2-net )

pcre?
      ( dev-libs/libpcre:3 )

portmidi?
      ( media-libs/portmidi )

sdl2-image?
      ( media-libs/sdl2-image )

sdl2-mixer?
      ( media-libs/sdl2-mixer[midi] )

vorbis?
      ( media-libs/libvorbis )

zlib?
      ( sys-libs/zlib )