-LUFA_PATH         = ../../LUFA/
-
-CPPCHECK_EXCLUDES = FATFs/            \
-                    PetiteFATFs/      \
-                    uip/
-CPPCHECK_INCLUDES = $(patsubst %/,%,$(LUFA_PATH))/CodeTemplates/   \
-                    $(patsubst %/,%,$(LUFA_PATH))/../Projects/AVRISP-MKII/
-CPPCHECK_PATH     = $(patsubst %/,%,$(LUFA_PATH))/..
+LUFA_PATH := ../../LUFA/
+
+CPPCHECK_EXCLUDES := FATFs/            \
+                     PetiteFATFs/      \
+                     uip/
+CPPCHECK_INCLUDES := $(patsubst %/,%,$(LUFA_PATH))/CodeTemplates/               \
+                     $(patsubst %/,%,$(LUFA_PATH))/../Projects/AVRISP-MKII/
+
+SRC               := $(patsubst %/,%,$(LUFA_PATH))/..