at-spi2-atk.tcz
   at-spi2-core.tcz
      dbus.tcz
         expat2.tcz
      glib2.tcz
         libffi.tcz
         pcre21042.tcz
      libICE.tcz
      libSM.tcz
      libX11.tcz
         libxcb.tcz
            libXau.tcz
            libXdmcp.tcz
   atk.tcz
      glib2.tcz
         libffi.tcz
         pcre21042.tcz