SRC_FILES := system_gd32vf103.c SRC_DIR := ifeq ($(CONFIG_BSP_USING_GPIO),y) SRC_DIR += gpio endif ifeq ($(CONFIG_BSP_USING_SYSCLOCK),y) SRC_DIR += sys_clock endif ifeq ($(CONFIG_BSP_USING_UART),y) SRC_DIR += uart endif include $(KERNEL_ROOT)/compiler.mk