[PATCH] voyager linkage fix

From: William Lee Irwin III <wli@holomorphy.com>

Voyager doesn't support HT, so smp_num_siblings doesn't exist.

Cc: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/i386/kernel/process.c

@@ -202,7 +202,7 @@ static int __init idle_setup (char *str)
 	if (!strncmp(str, "poll", 4)) {
 		printk("using polling idle threads.\n");
 		pm_idle = poll_idle;
-#ifdef CONFIG_SMP
+#ifdef CONFIG_X86_SMP
 		if (smp_num_siblings > 1)
 			printk("WARNING: polling idle and HT enabled, performance may degrade.\n");
 #endif