--- osdef.h.in.orig	Sat Apr 28 22:26:43 2001
+++ osdef.h.in	Tue Apr  9 10:24:18 2002
@@ -111,7 +111,7 @@
 extern int   setpgid __P((int, int));
 extern int   tcsetpgrp __P((int, int));
 #endif
-extern int   ioctl __P((int, int, char *));
+extern int   ioctl __P((int, unsigned long, ...));
 
 extern int   kill __P((int, int));