rt-thread/bsp/stm32/stm32f103-100ask-pro/board/ports/SConscript

import os
from building import *

objs = []
cwd  = GetCurrentDir()

# add general drivers
src = []
path =  [cwd]

if GetDepend(['BSP_USING_EXT_SRAM']):
    src += Glob('drv_sram.c')

if GetDepend(['BSP_USING_SPI_FLASH']):
    src += Glob('spi_flash_init.c')


CPPDEFINES = ['STM32F103xE']
group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path, CPPDEFINES = CPPDEFINES)

list = os.listdir(cwd)
for item in list:
    if os.path.isfile(os.path.join(cwd, item, 'SConscript')):
        group = group + SConscript(os.path.join(item, 'SConscript'))

Return('group')