$NetBSD: patch-configure,v 1.1 2025/04/28 17:35:01 tnn Exp $

Include <stdlib.h> for exit(3)

--- configure.orig	2025-04-28 17:29:33.110353260 +0000
+++ configure
@@ -2802,6 +2802,7 @@ cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #include <ctype.h>
+#include <stdlib.h>
 #if ((' ' & 0x0FF) == 0x020)
 # define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
 # define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))