at-spi2-atk-dev.tcz
   at-spi2-atk.tcz
      at-spi2-core.tcz
         dbus.tcz
            expat2.tcz
         glib2.tcz
            libffi.tcz
         Xorg-7.6-lib.tcz
      atk.tcz
         glib2.tcz
            libffi.tcz
   at-spi2-core-dev.tcz
      at-spi2-core.tcz
         dbus.tcz
            expat2.tcz
         glib2.tcz
            libffi.tcz
         Xorg-7.6-lib.tcz
      dbus-dev.tcz
         dbus.tcz
            expat2.tcz
         expat2-dev.tcz
            expat2.tcz
      glib2-dev.tcz
         glib2.tcz
            libffi.tcz
         libffi-dev.tcz
            libffi.tcz
      Xorg-7.6-dev.tcz
   atk-dev.tcz
      atk.tcz
         glib2.tcz
            libffi.tcz
      glib2-dev.tcz
         glib2.tcz
            libffi.tcz
         libffi-dev.tcz
            libffi.tcz