gdk-pixbuf2-dev.tcz
   gdk-pixbuf2.tcz
      glib2.tcz
         libff.tcz
      libtiff.tcz
   glib2-dev.tcz
      glib2.tcz
         libff.tcz
      libff-dev.tcz
   tiff-dev.tcz
      tiff-bin.tcz
         libtiff.tcz