unsigned rtt_4;
unsigned start, diff;
- opt_complementary = "=1"; /* exactly one non-option */
- opt = getopt32(argv, "cbp:P:t:T:", &opt_min_port, &opt_max_port, &opt_timeout, &opt_min_rtt);
+ opt = getopt32(argv, "^"
+ "cbp:P:t:T:"
+ "\0" "=1", /* exactly one non-option */
+ &opt_min_port, &opt_max_port, &opt_timeout, &opt_min_rtt
+ );
argv += optind;
max_port = xatou_range(opt_max_port, 1, 65535);
port = xatou_range(opt_min_port, 1, max_port);