diff -urN linux-2.5.44/arch/i386/mach-generic/do_timer.h linux-2.5.44-new/arch/i386/mach-generic/do_timer.h
--- linux-2.5.44/arch/i386/mach-generic/do_timer.h	2002-10-19 06:02:30.000000000 +0200
+++ linux-2.5.44-new/arch/i386/mach-generic/do_timer.h	2002-10-24 20:09:31.000000000 +0200
@@ -1,5 +1,7 @@
 /* defines for inline arch setup functions */
 
+#include <asm/apic.h>
+
 /**
  * do_timer_interrupt_hook - hook into timer tick
  * @regs:	standard registers from interrupt