Use path variables: cc2538
@@ -52,4 +52,4 @@ $(LDSCRIPT): $(SOURCE_LDSCRIPT) FORCE | $(OBJECTDIR)
$(TRACE_CC)
$(Q)$(CC) $(LDGENFLAGS) $< | grep -v '^\s*#\s*pragma\>' > $@
-include $(ARCH_PATH)/cpu/arm/cortex-m/cm3/Makefile.cm3
+include $(CONTIKI)/$(CONTIKI_NG_CM3_DIR)/Makefile.cm3
