depends gtk+2 && optional_depends libmng \ "" \ "--without-libmng" \ "for MNG support" && optional_depends librsvg2 \ "--with-librsvg" \ "--without-librsvg" \ "for SVG support under GTK2" && optional_depends mplayer \ "--enable-mplayer" \ "" \ "for EXPERIMENTAL MPlayer video support" && optional_depends xine-lib \ "--with-xine" \ "" \ "for EXPERIMENTAL Xine video support"