from building import *

Import('rtconfig')

src   = []
cwd   = GetCurrentDir()
group = []
CPPPATH = [cwd]

if GetDepend('RT_USING_LIBC'):
    src += Glob('*.c')
else:
    if GetDepend('RT_LIBC_USING_TIME'):
        src += ['time.c']

if GetDepend('RT_USING_POSIX') == False:
    SrcRemove(src, ['unistd.c'])

if rtconfig.CROSS_TOOL == 'keil':
    CPPDEFINES = ['__CLK_TCK=RT_TICK_PER_SECOND']
else:
    CPPDEFINES = []

if GetDepend('RT_USING_LIBC') or GetDepend('RT_LIBC_USING_TIME'):
    group = DefineGroup('libc', src, depend = [''], CPPPATH = CPPPATH, CPPDEFINES = CPPDEFINES)

Return('group')