from building import *
from utils import VersionCmp

cwd        = GetCurrentDir()
src        = Glob('*.c')
CPPPATH    = [cwd]
CPPDEFINES = []

# only enable POSIX.1b-1993 Real-time extensions
libc_ver   = GetDepend('LIBC_VERSION')
try:
    ver = libc_ver.split(' ')
    ver = ver[1]
    if VersionCmp(ver, "2.5.0") == 1:
        CPPDEFINES = ['_POSIX_C_SOURCE=199309L']
except :
    pass

group = DefineGroup('libc', src, 
    depend = ['RT_USING_PTHREADS', 'RT_USING_LIBC'], CPPPATH = CPPPATH, CPPDEFINES = CPPDEFINES)

Return('group')