implement out-of-line destructors where needed instead of using __DARWIN__

specific conditional compilation


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13447 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/choice.h

@@ -38,9 +38,7 @@ class WXDLLEXPORT wxChoiceBase : public wxControlWithItems
 {
 public:
     // all generic methods are in wxControlWithItems
-#ifdef __DARWIN__
-    virtual ~wxChoiceBase() {}
-#endif
+    virtual ~wxChoiceBase();
 
     // single selection logic
     virtual void SetSelection(int n) = 0;
@@ -56,7 +54,6 @@ public:
 
     // emulate selecting the item event.GetInt()
     void Command(wxCommandEvent& event);
-
 };
 
 // ----------------------------------------------------------------------------