$NetBSD$

diff -urpN cs4235.orig/cs4235_ctl.h cs4235/cs4235_ctl.h
--- cs4235_ctl.h.orig	2000-10-09 09:55:19.000000000 -0400
+++ cs4235_ctl.h	2008-08-02 12:26:36.000000000 -0400
@@ -17,4 +17,10 @@ void	cs4235_enable_access_indirect	__P((
 void	cs4235_enable_access_extended	__P((void));
 void	cs4235_enable_3d		__P((void));
 
+#if defined(__i386__)
+#define iopl i386_iopl
+#elif defined(__x86_64__) || defined(__amd64__)
+#define iopl x86_64_iopl
+#endif
+
 #endif /* !_CS4235_CTL_H_ */
