+# RDC subarch support
+mflags-$(CONFIG_X86_RDC) := -Iinclude/asm-i386/mach-generic
+mcore-$(CONFIG_X86_RDC) := mach-default
-+core-$(CONFIG_X86_RDC) := arch/i386/mach-rdc/
++core-$(CONFIG_X86_RDC) += arch/i386/mach-rdc/
# default subarch .h files
mflags-y += -Iinclude/asm-i386/mach-default