#undef HAVE_STRUCT_IP_MREQN
#undef HAVE_STRUCT_IP_MREQ
#undef HAVE_PTHREAD_MUTEX_TIMEDLOCK
#undef USE_MONO_MUTEX
#undef HAVE_LARGE_FILE_SUPPORT
#undef HAVE_STRUCT_IP_MREQN
#undef HAVE_STRUCT_IP_MREQ
#undef HAVE_PTHREAD_MUTEX_TIMEDLOCK
#undef USE_MONO_MUTEX
#undef HAVE_LARGE_FILE_SUPPORT