$NetBSD: patch-aj,v 1.3 2010/02/23 20:37:06 spz Exp $

--- include/stack.h.orig	2000-02-29 22:28:43.000000000 +0000
+++ include/stack.h
@@ -99,7 +99,7 @@ extern void            STACK_DefaultPrin
 #define Get_STACK_Size(s)         (s->size)
 
 /*  Fast Macro Push and Pop for static sized stacks _only_ */
-#define PushM(s, d)          (s->array[s->top++] = (STACK_TYPE)d)
+#define PushM(s, d)          (void)(s->array[s->top++] = (STACK_TYPE)d)
 #define PopM(s)              (s->array[--s->top])
 
 #ifdef STACK_DEBUG  /*  Debugging ON  */