[PATCH] acpi build fix: x86 setup.c

This is a neverending story

linux/acpi.h contains empty declarations for acpi_boot_init() &
acpi_boot_table_init() but they are nested inside #ifdef CONFIG_ACPI.

So we'll have to #ifdef in arch/i386/kernel/setup.c: setup_arch()

Signed-off-by: Alexander Nyberg <alexn@telia.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index 945ec73..2bfbdde 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -1502,11 +1502,13 @@
 	if (efi_enabled)
 		efi_map_memmap();
 
+#ifdef CONFIG_ACPI_BOOT
 	/*
 	 * Parse the ACPI tables for possible boot-time SMP configuration.
 	 */
 	acpi_boot_table_init();
 	acpi_boot_init();
+#endif
 
 #ifdef CONFIG_X86_LOCAL_APIC
 	if (smp_found_config)