--- linux/include/asm-ppc/smp.h.org	Sat Apr 20 15:44:45 2002
+++ linux/include/asm-ppc/smp.h	Sat Apr 20 16:12:54 2002
@@ -15,6 +15,7 @@
 
 #include <linux/config.h>
 #include <linux/kernel.h>
+#include <linux/threads.h>
 
 #ifdef CONFIG_SMP