+ $(error LUFA may be too old or not found: try 'git submodule update --init')
+# ifneq (, $(wildcard $(TMK_DIR)/$(TMK_LUFA_PATH)/LUFA/Build/lufa_sources.mk))
+# # build system from 20120730
+# LUFA_PATH = $(TMK_LUFA_PATH)
+# LUFA_ROOT_PATH = $(TMK_LUFA_PATH)/LUFA
+# include $(TMK_DIR)/$(TMK_LUFA_PATH)/LUFA/Build/lufa_sources.mk
+# else
+# include $(TMK_DIR)/$(TMK_LUFA_PATH)/LUFA/makefile
+# endif