SRC_SUPERVISOR = \ main.c \ supervisor/port.c \ supervisor/shared/autoreload.c \ supervisor/shared/rgb_led_status.c \ supervisor/shared/stack.c ifeq ($(wildcard atmel-samd/supervisor/filesystem.c),) SRC_SUPERVISOR += supervisor/filesystem.c else SRC_SUPERVISOR += supervisor/stub/filesystem.c endif ifeq ($(wildcard atmel-samd/supervisor/serial.c),) SRC_SUPERVISOR += supervisor/serial.c else SRC_SUPERVISOR += supervisor/stub/serial.c endif SUPERVISOR_O = $(addprefix $(BUILD)/, $(SRC_SUPERVISOR:.c=.o))