avoid a warning about declaring a variable that shadows an earlier declared

    if( bind(sockfd, sock, socksize) >= 0) {

      /* we succeeded to bind */

      struct Curl_sockaddr_storage add;

      unsigned short port = 0;

      size_t size;

      size = sizeof(add);

        failf(data, "getsockname() failed");

        return CURLE_HTTP_PORT_FAILED;

      }

      /* We re-use/clobber the port variable here below */

      if(((struct sockaddr *)&add)->sa_family == AF_INET)

        port = ntohs(((struct sockaddr_in *)&add)->sin_port);

#ifdef ENABLE_IPV6