rt-thread/components/libc/compilers/armlibc/SConscript

from building import *
Import('rtconfig')

src   = Glob('*.c') + Glob('*.cpp')
cwd   = GetCurrentDir()
group = []

CPPPATH = [cwd]
CPPDEFINES = ['RT_USING_ARM_LIBC']

if rtconfig.PLATFORM == 'armcc':
    group = DefineGroup('libc', src, depend = ['RT_USING_LIBC'], 
        CPPPATH = CPPPATH, CPPDEFINES = CPPDEFINES)

Return('group')