depends glib-2

optional_depends libpng       "--with-libpng"       "--without-libpng" "for png graphics support"
optional_depends libdv        "--with-libdv"        "--without-libdv" "for dv video support"
optional_depends v4l-utils    "--with-v4l"          "--without-v4l" "for video4linux2 device support"
optional_depends gtk+-2       "--with-gtk"          "--without-gtk" "GTK+-2 support"
optional_depends SDL          "--with-libsdl"       "--without-libsdl" "SDL support"
optional_depends libquicktime "--with-libquicktime" "--without-libquicktime" "for quicktime support"
