rrdtool.tcz
   libxml2.tcz
      liblzma.tcz
   cairo.tcz
      pixman.tcz
      fontconfig.tcz
         expat2.tcz
   pango.tcz
      glib2.tcz
         libffi.tcz
      Xorg-7.6-lib.tcz
      libxcb.tcz
   tcp_wrappers.tcz