// launch MHD with MHD_USE_EPOLL (and NOT any "INTERNAL_THREAD")
{
  int fd;

  fd = MHD_get_daemon_info (daemon,
                            MHD_DAEMON_INFO_EPOLL_FD)->epoll_fd;
  while (1)
  {
    fd_set r;
    MHD_UNSIGNED_LONG_LONG to;
    struct timeval tv;

    FD_ZERO (&r);
    FD_SET (fd, &r);
    MHD_get_timeout (daemon, &to);
    tv.tv_sec = (to / 1000LLU);
    tv.tv_usec = (to % 1000LLU) * 1000;
    select (r + 1, &r, NULL, NULL, NULL);
    MHD_run (daemon);
  }
}