Fix bug with searching "" pattern, cause 'more' always shows

next line on "/<Enter>" instead of searching next pattern
svn path=/head/; revision=2764
1994-09-14 21:35:31 +00:00 · 1994-09-14 21:35:31 +00:00 · a5b8a93b59 · 2020-12-20 02:59:44 +00:00
commit a5b8a93b59
parent dea246f55a
1 changed files with 1 additions and 1 deletions
--- a/lib/libcompat/4.3/regex.c
+++ b/lib/libcompat/4.3/regex.c
@ -59,7 +59,7 @@ char *
 re_comp(s)
 	char *s;
 {
-	if (s == NULL)
+	if (s == NULL || *s == '\0')
 		return (NULL);
 	if (re_regexp)
 		free(re_regexp);