2391 key_to_opts (struct keyfield const *key, char *opts)  in key_to_opts()  argument
2394     *opts++ = 'b';/* either disables global -b  */  in key_to_opts()
2396     *opts++ = 'd';  in key_to_opts()
2398     *opts++ = 'f';  in key_to_opts()
2400     *opts++ = 'g';  in key_to_opts()
2402     *opts++ = 'h';  in key_to_opts()
2404     *opts++ = 'i';  in key_to_opts()
2406     *opts++ = 'M';  in key_to_opts()
2408     *opts++ = 'n';  in key_to_opts()
2410     *opts++ = 'R';  in key_to_opts()
2412     *opts++ = 'r';  in key_to_opts()
2414     *opts++ = 'V';  in key_to_opts()
2415   *opts = '\0';  in key_to_opts()
2593       char opts[sizeof short_options];  in key_warnings()  local
2594       key_to_opts (&ugkey, opts);  in key_warnings()
2598                        select_plural (strlen (opts))), opts);  in key_warnings()
4127 incompatible_options (char const *opts)  in incompatible_options()  argument
4129   error (SORT_FAILURE, 0, _("options '-%s' are incompatible"), (opts));  in incompatible_options()
4144         char opts[sizeof short_options];  in check_ordering_compatibility()  local
4147         key_to_opts (key, opts);  in check_ordering_compatibility()
4148         incompatible_options (opts);  in check_ordering_compatibility()
4747           static char opts[] = "X --debug";  in main()  local
4748           opts[0] = (checkonly ? checkonly : 'o');  in main()
4749           incompatible_options (opts);  in main()
4803           static char opts[] = {0, 'o', 0};  in main()  local
4804           opts[0] = checkonly;  in main()
4805           incompatible_options (opts);  in main()