Index: xwin.h
--- xwin.h.orig
+++ xwin.h
@@ -18,17 +18,17 @@
 
 #ifdef USE_X11
 
-extern void	init_xwin	();
-extern void	end_xwin	();
-extern int	open_xwin	( /* yuser, title */ );
-extern void	close_xwin	( /* yuser */ );
-extern void	addch_xwin	( /* yuser, char */ );
-extern void	move_xwin	( /* yuser, y, x */ );
-extern void	clreol_xwin	( /* yuser */ );
-extern void	clreos_xwin	( /* yuser */ );
-extern void	scroll_xwin	( /* yuser */ );
-extern void	rev_scroll_xwin	( /* yuser */ );
-extern void	flush_xwin	( /* yuser */ );
+extern void	init_xwin	(void);
+extern void	end_xwin	(void);
+extern int	open_xwin	(yuser *, char *);
+extern void	close_xwin	(yuser *);
+extern void	addch_xwin	(yuser *, ychar);
+extern void	move_xwin	(yuser *, int, int);
+extern void	clreol_xwin	(yuser *);
+extern void	clreos_xwin	(yuser *);
+extern void	scroll_xwin	(yuser *);
+extern void	rev_scroll_xwin	(yuser *);
+extern void	flush_xwin	(yuser *);
 
 #endif
 
