diff -urN 2i/Makefile wt3/Makefile
--- 2i/Makefile	Thu Mar 28 22:24:25 2002
+++ wt3/Makefile	Thu Mar 28 22:25:31 2002
@@ -185,6 +185,7 @@
 DRIVERS-$(CONFIG_BLUEZ) += drivers/bluetooth/bluetooth.o
 DRIVERS-$(CONFIG_HOTPLUG_PCI) += drivers/hotplug/vmlinux-obj.o
 DRIVERS-$(CONFIG_ISDN_BOOL) += drivers/isdn/vmlinux-obj.o
+DRIVERS-$(CONFIG_KPERFCTR) += drivers/perfctr/kperfctr.o
 
 DRIVERS := $(DRIVERS-y)