--- zzzz-none-000/linux-2.4.17/include/asm-sh/hardirq.h	2001-09-08 19:29:09.000000000 +0000
+++ sangam-fb-322/linux-2.4.17/include/asm-sh/hardirq.h	2004-11-24 13:21:34.000000000 +0000
@@ -34,6 +34,8 @@
 
 #define synchronize_irq()	barrier()
 
+#define release_irqlock(cpu)	do { } while (0)
+
 #else
 
 #error Super-H SMP is not available