--- linux/drivers/block/ide-probe.c.orig	Sat Nov  4 06:32:43 2000
+++ linux/drivers/block/ide-probe.c	Sat Nov  4 06:32:52 2000
@@ -43,6 +43,8 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
+extern spinlock_t rtc_lock;
+
 #include "ide.h"
 
 static inline void do_identify (ide_drive_t *drive, byte cmd)