Index: kernel/arch/sparc64/src/trap/sun4u/interrupt.c
===================================================================
--- kernel/arch/sparc64/src/trap/sun4u/interrupt.c	(revision 05882233d8ca97c6879ac5c42456c344c8569d89)
+++ kernel/arch/sparc64/src/trap/sun4u/interrupt.c	(revision c53e8137d0d1c1adfead47ccfe6351383d8d6af2)
@@ -33,4 +33,5 @@
  */
 
+#include <arch/barrier.h>
 #include <arch/interrupt.h>
 #include <arch/sparc64.h>