sdl_image-dev.tcz
   sdl_image.tcz
      sdl.tcz
   sdl-dev.tcz
      sdl.tcz
   tiff-dev.tcz
      tiff-bin.tcz
         libtiff.tcz
            libjpeg-turbo.tcz
      libjpeg-turbo-dev.tcz
         libjpeg-turbo-bin.tcz
            libjpeg-turbo.tcz
   libpng-dev.tcz
      libpng-bin.tcz
         libpng.tcz