fix windows compile

third_party/openfx/HostSupport/include/ofxhPropertySuite.h

@@ -307,18 +307,18 @@ namespace OFX {
 				// get multiple values
 				void getValueN(APIType *value, int count) const;
 
-#ifdef WINDOWS
-#pragma warning( disable : 4181 )	
-#endif		
+#ifdef _MSC_VER
+#pragma warning( disable : 4181 )
+#endif
 				/// get one value
 				const ReturnType getValue(int index=0) const;
 
 				/// get one value, without going through the getHook
 				const ReturnType getValueRaw(int index=0) const;
 
-#ifdef WINDOWS
-#pragma warning( default : 4181 )	
-#endif				
+#ifdef _MSC_VER
+#pragma warning( default : 4181 )
+#endif
 				// get multiple values, without going through the getHook
 				void getValueNRaw(APIType *value, int count) const;