Index: linux-wbsd/arch/x86_64/kernel/Makefile
===================================================================
--- linux-wbsd/arch/x86_64/kernel/Makefile	(revision 153)
+++ linux-wbsd/arch/x86_64/kernel/Makefile	(working copy)
@@ -7,7 +7,8 @@
 obj-y	:= process.o semaphore.o signal.o entry.o traps.o irq.o \
 		ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_x86_64.o \
 		x8664_ksyms.o i387.o syscall.o vsyscall.o \
-		setup64.o bootflag.o e820.o reboot.o quirks.o
+		setup64.o bootflag.o e820.o reboot.o quirks.o \
+		../../i386/kernel/i8237.o

 obj-$(CONFIG_X86_MCE)         += mce.o
 obj-$(CONFIG_X86_MCE_INTEL)	+= mce_intel.o