-# Include LUFA build script makefiles
-include $(LUFA_PATH)/Build/lufa.core.in
-include $(LUFA_PATH)/Build/lufa.sources.in
-include $(LUFA_PATH)/Build/lufa.build.in
-include $(LUFA_PATH)/Build/lufa.doxygen.in
-include $(LUFA_PATH)/Build/lufa.dfu.in
-include $(LUFA_PATH)/Build/lufa.avrdude.in
+# Since this project borrows files from the AVRISP-MKII project which may also have an
+# identical OBJDIR directory, we need to enforce the use of this project's object file
+# directory as the one where the build object files are to be stored, by giving it a
+# path relative to the current folder.
+OBJDIR := ./xpb-obj
+
+# Include LUFA-specific DMBS extension modules
+DMBS_LUFA_PATH ?= $(LUFA_PATH)/Build/LUFA
+include $(DMBS_LUFA_PATH)/lufa-sources.mk
+include $(DMBS_LUFA_PATH)/lufa-gcc.mk
+
+# Include common DMBS build system modules
+DMBS_PATH ?= $(LUFA_PATH)/Build/DMBS/DMBS
+include $(DMBS_PATH)/core.mk
+include $(DMBS_PATH)/cppcheck.mk
+include $(DMBS_PATH)/doxygen.mk
+include $(DMBS_PATH)/dfu.mk
+include $(DMBS_PATH)/gcc.mk
+include $(DMBS_PATH)/hid.mk
+include $(DMBS_PATH)/avrdude.mk
+include $(DMBS_PATH)/atprogram.mk