py2cairo-1.10.0 # ./waf configure
  ./options()
Setting top to                           : /var/tmp/portage/dev-python/pycairo-1.10.0-r4/work/py2cairo-1.10.0
Setting out to                           : /var/tmp/portage/dev-python/pycairo-1.10.0-r4/work/py2cairo-1.10.0/build_directory
  ./configure()
Checking for 'gcc' (c compiler)          : ok
Checking for program python              : /usr/bin/python
python executable '/usr/bin/python' different from sys.executable '/usr/bin/python3.2-amd64'
Checking for python version              : (3, 2, 3, 'final', 0)
Traceback (most recent call last):
  File "/var/tmp/portage/dev-python/pycairo-1.10.0-r4/work/py2cairo-1.10.0/.waf3-1.6.3-3c3129a3ec8fb4a5bbc7ba3161463b22/waflib/Scripting.py", line 93, in waf_entry_point
    run_commands()
  File "/var/tmp/portage/dev-python/pycairo-1.10.0-r4/work/py2cairo-1.10.0/.waf3-1.6.3-3c3129a3ec8fb4a5bbc7ba3161463b22/waflib/Scripting.py", line 145, in run_commands
    run_command(cmd_name)
  File "/var/tmp/portage/dev-python/pycairo-1.10.0-r4/work/py2cairo-1.10.0/.waf3-1.6.3-3c3129a3ec8fb4a5bbc7ba3161463b22/waflib/Scripting.py", line 138, in run_command
    ctx.execute()
  File "/var/tmp/portage/dev-python/pycairo-1.10.0-r4/work/py2cairo-1.10.0/.waf3-1.6.3-3c3129a3ec8fb4a5bbc7ba3161463b22/waflib/Configure.py", line 124, in execute
    super(ConfigurationContext,self).execute()
  File "/var/tmp/portage/dev-python/pycairo-1.10.0-r4/work/py2cairo-1.10.0/.waf3-1.6.3-3c3129a3ec8fb4a5bbc7ba3161463b22/waflib/Context.py", line 87, in execute
    self.recurse([os.path.dirname(g_module.root_path)])
  File "/var/tmp/portage/dev-python/pycairo-1.10.0-r4/work/py2cairo-1.10.0/.waf3-1.6.3-3c3129a3ec8fb4a5bbc7ba3161463b22/waflib/Context.py", line 127, in recurse
    user_function(self)
  File "/var/tmp/portage/dev-python/pycairo-1.10.0-r4/work/py2cairo-1.10.0/wscript", line 53, in configure
    ctx.check_python_headers()
  File "/var/tmp/portage/dev-python/pycairo-1.10.0-r4/work/py2cairo-1.10.0/.waf3-1.6.3-3c3129a3ec8fb4a5bbc7ba3161463b22/waflib/Configure.py", line 214, in fun
    return f(*k,**kw)
  File "/var/tmp/portage/dev-python/pycairo-1.10.0-r4/work/py2cairo-1.10.0/.waf3-1.6.3-3c3129a3ec8fb4a5bbc7ba3161463b22/waflib/Tools/python.py", line 126, in check_python_headers
    all_flags=dct['LDFLAGS']+' '+dct['LDSHARED']+' '+dct['CFLAGS']
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'