går inte att kompilera linuxdcpp

david@david-linux:~/linuxdcpp$ scons
scons: Reading SConscript files ...
Checking for None >= 3.4...ValueError: invalid literal for int(): s:
  File "SConstruct", line 63:
    if not conf.CheckCXXVersion(cxx, 3, 4):
  File "/usr/lib/scons/SCons/SConf.py", line 354:
    ret = apply(self.test, (context,) +  args, kw)
  File "SConstruct", line 44:
    if ((string.atoi(ret[0]) == major and string.atoi(ret[2]) >= minor)
  File "/usr/lib/python2.4/string.py", line 403:
    return _int(s, base)