rt-thread-official/components/libc/compilers/common/SConscript

from building import *
Import('rtconfig')

src   = []
cwd   = GetCurrentDir()
group = []
CPPPATH = [cwd + '/include']
CPPDEFINES = []

if rtconfig.PLATFORM in ['armcc', 'armclang']:
    CPPDEFINES += ['__CLK_TCK=RT_TICK_PER_SECOND']
elif rtconfig.PLATFORM in ['iccarm']:
    CPPDEFINES += ['CLOCKS_PER_SEC=RT_TICK_PER_SECOND'] # forcly revert to 1 by IAR
elif rtconfig.PLATFORM in ['gcc'] and rtconfig.CPU in ['posix']:
    CPPDEFINES += ['_GNU_SOURCE'] # linux x86 platform gcc use!

src += Glob('*.c')

group = DefineGroup('Compiler', src, depend = [''], CPPPATH = CPPPATH, 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')