{"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 },
{"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
{"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
{"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 },
{"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
{"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },