+--- a/arch/x86/Makefile
++++ b/arch/x86/Makefile
+@@ -125,6 +125,9 @@ libs-y += arch/x86/lib/
+ # See arch/x86/Kbuild for content of core part of the kernel
+ core-y += arch/x86/
+
++# RDC R-321X support
++core-$(CONFIG_X86_RDC321X) += arch/x86/mach-rdc321x/
++
+ # drivers-y are linked after core-y
+ drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
+ drivers-$(CONFIG_PCI) += arch/x86/pci/