#undef HAVE_SOL_IP
#undef HAVE_SOL_TCP
#undef HAVE_IP_PKTINFO
-#undef HAVE_IP_ADD_MEMBERSHIP
-#undef HAVE_IP_DROP_MEMBERSHIP
+#undef HAVE_STRUCT_IP_MREQN
#undef HAVE_PTHREAD
#undef HAVE_PTHREAD_MUTEX_TIMEDLOCK
#undef USE_MONO_MUTEX
#undef HAVE_LARGE_FILE_SUPPORT
#undef PLATFORM_WIN32
-#undef PLATFORM_WIN32_NATIVE
#undef HAVE_NEW_ICONV