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

src/common/framecmn.cpp

@@ -78,6 +78,11 @@ wxFrameBase::wxFrameBase()
 #endif // wxUSE_STATUSBAR
 }
 
+wxFrameBase::~wxFrameBase()
+{
+    // this destructor is required for Darwin
+}
+
 wxFrame *wxFrameBase::New(wxWindow *parent,
                           wxWindowID id,
                           const wxString& title,