*
* `defval`::
* default value to fill (*->value) with for PARSE_OPT_OPTARG.
- * OPTION_{BIT,SET_INT} store the {mask,integer,pointer} to put in
- * the value when met.
+ * OPTION_{BIT,SET_INT} store the {mask,integer} to put in the value when met.
* CALLBACKS can use it like they want.
*/
struct option {
extern int optbug(const struct option *opt, const char *reason);
extern int opterror(const struct option *opt, const char *reason, int flags);
-#if defined(__GNUC__) && ! defined(__clang__)
-#define opterror(o,r,f) (opterror((o),(r),(f)), -1)
+#if defined(__GNUC__)
+#define opterror(o,r,f) (opterror((o),(r),(f)), const_error())
#endif
/*----- incremental advanced APIs -----*/