diff -urN ref/include/linux/timer.h timer_t/include/linux/timer.h
--- ref/include/linux/timer.h	Sat Apr 28 20:29:48 2001
+++ timer_t/include/linux/timer.h	Sun Apr 29 17:10:36 2001
@@ -23,6 +23,7 @@
 	unsigned long data;
 	void (*function)(unsigned long);
 };
+typedef struct timer_list timer_t;
 
 extern void add_timer(struct timer_list * timer);
 extern int del_timer(struct timer_list * timer);