$OpenBSD: patch-main_h,v 1.1 2021/02/05 15:39:14 cwen Exp $

Add missing include

Index: main.h
--- main.h.orig
+++ main.h
@@ -14,6 +14,7 @@
 
 #define __MAIN_H__
 
+#include <ctype.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>