Index: generic/include/synch/spinlock.h
===================================================================
--- generic/include/synch/spinlock.h	(revision 169c408f8774661800aa0a9685c9914cbb5a974c)
+++ generic/include/synch/spinlock.h	(revision 0b5ac364286bd4f71ec8dbd05e4d57b5bd850133)
@@ -34,5 +34,5 @@
 #include <preemption.h>
 
-#ifdef __SMP__
+#ifdef CONFIG_SMP
 struct spinlock {
 	int val;