+#ifdef _XBT_WIN32
+ #ifndef EWOULDBLOCK
+ #define EWOULDBLOCK WSAEWOULDBLOCK
+ #endif
+
+ #ifndef EINPROGRESS
+ #define EINPROGRESS WSAEINPROGRESS
+ #endif
+
+ #ifndef ETIMEDOUT
+ #define ETIMEDOUT WSAETIMEDOUT
+ #endif
+
+ #ifdef S_IRGRP
+ #undef S_IRGRP
+ #endif
+ #define S_IRGRP 0
+
+ #ifdef S_IWGRP
+ #undef S_IWGRP
+ #endif
+ #define S_IWGRP 0
+#endif
+