message: fix compile error without ssl option
diff: @@ -161,12 +161,13 @@ bool Socket::socks5_handshake()
  bool Socket::http_proxy_handshake()
  {
  +#ifdef SW_USE_OPENSSL
  //https proxy
  if (http_proxy->ssl && ssl_handshake() == false)
  {
  return false;
  }
  -
  +#endif
  //CONNECT
  int n = snprintf(http_proxy->buf, sizeof(http_proxy->buf), "CONNECT %s:%d HTTP/1.1\r\n\r\n",
  http_proxy->target_host, http_proxy->target_port);
  