mark all dtors which are virtual because base class dtor is virtual explicitly virtual themselves

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41020 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/unix/joystick.h

@@ -26,7 +26,7 @@ class WXDLLEXPORT wxJoystick: public wxObject
      */
 
     wxJoystick(int joystick = wxJOYSTICK1);
-    ~wxJoystick();
+    virtual ~wxJoystick();
 
     // Attributes
     ////////////////////////////////////////////////////////////////////////////

include/wx/unix/sound.h

@@ -61,7 +61,7 @@ public:
     wxSound();
     wxSound(const wxString& fileName, bool isResource = false);
     wxSound(int size, const wxByte* data);
-    ~wxSound();
+    virtual ~wxSound();
 
     // Create from resource or file
     bool Create(const wxString& fileName, bool isResource = false);