sdk-rt-thread-source-code/components/drivers/smp_call/SConscript

from building import *

cwd  = GetCurrentDir()
src = []
if GetDepend("RT_USING_SMP"):
    src += Glob('*.c')
CPPPATH = [cwd]
group = DefineGroup('DeviceDrivers', src, depend = [''], CPPPATH = CPPPATH)

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')