depends  libpng
depends  zlib
depends  %JPEG
depends  tiff
depends  lcms
depends  jasper

optional_depends SDL     "--enable-sdl" "--disable-sdl" "for SDL support"
optional_depends openexr "--enable-exr" "--disable-exr" "for high dynamic-range support"
optional_depends libmng  "--enable-mng" "--disable-mng" "for MNG format support"

optional_depends allegro "--enable-allegro" "--disable-allegro" "for additional graphical support"
