$NetBSD: patch-ac,v 1.10 2025/10/11 22:14:36 mrg Exp $

--- ckcdeb.h.orig	2010-08-23 06:30:56.000000000 -0700
+++ ckcdeb.h	2025-10-11 15:06:08.218109885 -0700
@@ -2190,6 +2190,9 @@ _PROTOTYP( void bleep, (short) );
 #endif	/* __FreeBSD__ */
 #endif	/* __linux__ */
 #endif	/* HAVE_OPENPTY */
+#ifdef __NetBSD__
+#include <util.h>
+#endif
 #endif	/* NO_OPENPTY */
 
 /* Kermit feature selection */
@@ -4532,7 +4535,6 @@ extern int errno;
   following is an anachronism and should be the execption rather than the
   rule.
 */
-extern int errno;
 #endif /* __GLIBC__ */
 #endif /* OS2 */
 #endif /* VMS */
@@ -5292,6 +5294,9 @@ typedef int WAIT_T;
 #undef CK_OSF_BSD
 #endif /* CK_OSF_BSD */
 #else /* !POSIX */
+#ifdef __NetBSD__
+#include <sys/wait.h>
+#endif
 typedef int WAIT_T;
 #endif /* POSIX */
 #endif /* MACHWAIT */