media-libs/libpng:=
sys-libs/zlib:=[minizip]
x11-libs/libX11
x11-libs/libXext

alsa?
      ( media-libs/alsa-lib )

gui?
      ( dev-cpp/cairomm:0 dev-cpp/glibmm:2 dev-cpp/gtkmm:3.0[wayland?
] dev-libs/glib:2 dev-libs/libsigc++:2 media-libs/libepoxy media-libs/libsdl2[joystick] x11-libs/cairo x11-libs/gdk-pixbuf:2 x11-libs/gtk+:3[wayland?
] x11-libs/libXrandr portaudio?
            ( media-libs/portaudio )
       pulseaudio?
            ( media-libs/libpulse )
       wayland?
            ( dev-libs/wayland )
       )

libretro?
      ( !games-emulation/libretro-snes9x )

xinerama?
      ( x11-libs/libXinerama )

xv?
      ( x11-libs/libXv )