return usage_with_options_internal(usagestr, options, 1);
if (internal_help && !strcmp(arg + 2, "help"))
return parse_options_usage(usagestr, options);
+ if (!strcmp(arg + 2, "list-opts"))
+ return PARSE_OPT_LIST;
switch (parse_long_opt(ctx, arg + 2, options)) {
case -1:
return parse_options_usage(usagestr, options);
exit(129);
case PARSE_OPT_DONE:
break;
+ case PARSE_OPT_LIST:
+ while (options->type != OPTION_END) {
+ printf("--%s ", options->long_name);
+ options++;
+ }
+ exit(130);
default: /* PARSE_OPT_UNKNOWN */
if (ctx.argv[0][1] == '-') {
error("unknown option `%s'", ctx.argv[0] + 2);
}
-int parse_opt_verbosity_cb(const struct option *opt, const char *arg __used,
+int parse_opt_verbosity_cb(const struct option *opt,
+ const char *arg __maybe_unused,
int unset)
{
int *target = opt->value;