extern int pic_mode;
extern int using_apic_timer;
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
extern void mp_register_lapic (u8 id, u8 enabled);
extern void mp_register_lapic_address (u64 address);
extern void mp_register_ioapic (u8 id, u32 address, u32 gsi_base);
extern void mp_override_legacy_irq (u8 bus_irq, u8 polarity, u8 trigger, u32 gsi);
extern void mp_config_acpi_legacy_irqs (void);
extern int mp_register_gsi (u32 gsi, int edge_level, int active_high_low);
-#endif /*CONFIG_ACPI_BOOT*/
+#endif /* CONFIG_ACPI */
#define PHYSID_ARRAY_SIZE BITS_TO_LONGS(MAX_APICS)