modifications for compilation under Mac OS X

applied patches extracted from submission by Marc Newsam (tested under Mac OS 9)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9372 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/mac/dataobj.h

@@ -24,6 +24,9 @@ class wxDataObject : public wxDataObjectBase
 {
 public:
     wxDataObject();
+#ifdef __WXMAC_X__
+    ~wxDataObject() {}  // Added min for Mac X
+#endif
 
     virtual bool IsSupportedFormat( const wxDataFormat& format, Direction dir = Get ) const;
 };