USEMODULE_INCLUDES_dfplayer := $(LAST_MAKEFILEDIR)/include USEMODULE_INCLUDES += $(USEMODULE_INCLUDES_dfplayer) ifneq (,$(filter arch_avr8 arch_msp430,$(FEATURES_USED))) # no strerror() on AVR and MSP430 CFLAGS += -DCONFIG_DFPLAYER_NO_STRERROR endif