当我运行 时./configure，出现错误。这是什么This platform lacks a functioning sem_open implementation意思？
如何让它工作？
环境：
Red Hat Enterprise Linux AS release 4 (Nahant Update 3) 2.6.32_1-11-0-0
错误信息：
$PYTHON ./configure
{ 'target_defaults': { 'cflags': [],
'default_configuration': 'Release',
'defines': [],
'include_dirs': [],
'libraries': []},
'variables': { 'clang': 0,
'gcc_version': 46,
'host_arch': 'x64',
'node_install_npm': 'true',
'node_prefix': '',
'node_shared_cares': 'false',
'node_shared_http_parser': 'false',
'node_shared_libuv': 'false',
'node_shared_openssl': 'false',
'node_shared_v8': 'false',
'node_shared_zlib': 'false',
'node_tag': '',
'node_unsafe_optimizations': 0,
'node_use_dtrace': 'false',
'node_use_etw': 'false',
'node_use_openssl': 'true',
'node_use_perfctr': 'false',
'node_use_systemtap': 'false',
'python': '/home/bae/apps/Python-2.7.6/python',
'target_arch': 'x64',
'v8_enable_gdbjit': 0,
'v8_no_strict_aliasing': 1,
'v8_use_snapshot': 'true'}}
creating ./config.gypi
creating ./config.mk
Traceback (most recent call last):
File "tools/gyp_node.py", line 57, in <module>
run_gyp(gyp_args)
File "tools/gyp_node.py", line 18, in run_gyp
rc = gyp.main(args)
File "./tools/gyp/pylib/gyp/__init__.py", line 527, in main
return gyp_main(args)
File "./tools/gyp/pylib/gyp/__init__.py", line 503, in gyp_main
options.circular_check)
File "./tools/gyp/pylib/gyp/__init__.py", line 129, in Load
params['parallel'], params['root_targets'])
File "./tools/gyp/pylib/gyp/input.py", line 2687, in Load
generator_input_info)
File "./tools/gyp/pylib/gyp/input.py", line 594, in LoadTargetBuildFilesParallel
parallel_state.pool = multiprocessing.Pool(8)
File "/home/bae/apps/Python-2.7.6/Lib/multiprocessing/__init__.py", line 232, in Pool
return Pool(processes, initializer, initargs, maxtasksperchild)
File "/home/bae/apps/Python-2.7.6/Lib/multiprocessing/pool.py", line 138, in __init__
self._setup_queues()
File "/home/bae/apps/Python-2.7.6/Lib/multiprocessing/pool.py", line 232, in _setup_queues
from .queues import SimpleQueue
File "/home/bae/apps/Python-2.7.6/Lib/multiprocessing/queues.py", line 48, in <module>
from multiprocessing.synchronize import Lock, BoundedSemaphore, Semaphore, Condition
File "/home/bae/apps/Python-2.7.6/Lib/multiprocessing/synchronize.py", line 59, in <module>
" function, see issue 3770.")
ImportError: This platform lacks a functioning sem_open implementation, therefore, the required synchronization primitives needed will not function, see issue 3770.