ifeq ($(USE_SMART_BUILD),yes) ifneq ($(findstring HAL_USE_I2C TRUE,$(HALCONF)),) PLATFORMSRC += $(CHIBIOS)/os/hal/ports/AVR/MEGA/LLD/I2Cv1/hal_i2c_lld.c endif else PLATFORMSRC += $(CHIBIOS)/os/hal/ports/AVR/MEGA/LLD/I2Cv1/hal_i2c_lld.c endif PLATFORMINC += $(CHIBIOS)/os/hal/ports/AVR/MEGA/LLD/I2Cv1