avahi-dev.tcz
   avahi.tcz
      libavahi.tcz
         dbus.tcz
            expat2.tcz
         gcc_libs.tcz
         glib2.tcz
            libffi.tcz
      libdaemon.tcz
      nss-mdns.tcz
      expat2.tcz
   dbus-dev.tcz
      dbus.tcz
         expat2.tcz
      expat2-dev.tcz
         expat2.tcz
   glib2-dev.tcz
      glib2.tcz
         libffi.tcz
      libffi-dev.tcz
      perl5.tcz