$NetBSD: patch-ai,v 1.1.1.1 2008/11/21 17:40:31 adam Exp $

--- include/winternl.h.orig	2008-09-19 18:05:36.000000000 +0200
+++ include/winternl.h
@@ -22,6 +22,9 @@
 #define __WINE_WINTERNL_H
 
 #include <windef.h>
+#ifndef va_list
+#define va_list __builtin_va_list
+#endif
 
 #ifdef __cplusplus
 extern "C" {