[PATCH] ppc: Fix build of irq.c with CONFIG_TAU_INT

This patch fixes build of arch/ppc/kernel/irc.c when CONFIG_TAU_INT
is set.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/ppc/kernel/irq.c

@@ -71,6 +71,11 @@ unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
 unsigned long ppc_lost_interrupts[NR_MASK_WORDS];
 atomic_t ppc_n_lost_interrupts;
 
+#ifdef CONFIG_TAU_INT
+extern int tau_initialized;
+extern int tau_interrupts(int);
+#endif
+
 int show_interrupts(struct seq_file *p, void *v)
 {
 	int i = *(loff_t *) v, j;