--- a/argp-help.c | |
+++ b/argp-help.c | |
@@ -777,9 +777,9 @@ hol_entry_cmp (const struct hol_entry *e | |
const char *long2 = hol_entry_first_long (entry2); | |
if (doc1) | |
- doc1 = canon_doc_option (&long1); | |
+ doc1 = long1 != NULL && canon_doc_option (&long1); | |
if (doc2) | |
- doc2 = canon_doc_option (&long2); | |
+ doc2 = long2 != NULL && canon_doc_option (&long2); | |
if (doc1 != doc2) | |
/* `documentation' options always follow normal options (or |