BOARD ?= samr21-xpro include ../Makefile.sys_common include $(RIOTBASE)/Makefile.include ifneq (,$(filter arch_32bit,$(FEATURES_USED))) CFLAGS += -DCORRECT_WORD_BITS=32 endif ifneq (,$(filter arch_16bit,$(FEATURES_USED))) CFLAGS += -DCORRECT_WORD_BITS=16 endif ifneq (,$(filter arch_8bit,$(FEATURES_USED))) CFLAGS += -DCORRECT_WORD_BITS=8 endif