fix defines

TUIO/WebSockSender.cpp

 /*
  TUIO C++ Library
- Copyright (c) 2009-2016 Martin Kaltenbrunner <martin@tuio.org>
+ Copyright (c) 2009-2017 Martin Kaltenbrunner <martin@tuio.org>
  WebSockSender (c) 2015 Florian Echtler <floe@butterbrot.org>
  
  This library is free software; you can redistribute it and/or
@@ -19,12 +19,9 @@
 
 #include "WebSockSender.h"
 
-#ifdef  WIN32
-#if not 
-	defined int32_t
+#if defined (WIN32) && !defined (int32_t)
 	typedef DWORD int32_t;
 #endif
-#endif
 
 using namespace TUIO;