/* __gc tag method for CLIBS table: calls 'll_unloadlib' for all lib handles in list CLIBS  */
static int gctm(lua_State *L)
/* __gc tag method for CLIBS table: calls 'll_unloadlib' for all lib handles in list CLIBS  */
static int gctm(lua_State *L)
{
    lua_rawgeti(L, 1, n);
    ll_unloadlib(lua_touserdata(L, -1));
    lua_pop(L, 1);
  }
  return 0;
}