--- linux-2.5.50/drivers/pci/quirks.c.orig	2002-12-08 18:25:53.000000000 +0100
+++ linux-2.5.50/drivers/pci/quirks.c	2002-12-08 18:43:25.000000000 +0100
@@ -302,6 +302,7 @@
 
 #ifdef CONFIG_X86_IO_APIC 
 extern int nr_ioapics;
+extern int sis_apic_bug;
 
 /*
  * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip