Change destructors to virtual in all basic classes.

Also add some missing final to classes.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gui/widgets/setupitem.h b/src/gui/widgets/setupitem.h
index 9c5cc11e3..dae7d83d9 100644
--- a/src/gui/widgets/setupitem.h
+++ b/src/gui/widgets/setupitem.h
@@ -59,7 +59,7 @@ class SetupItem : public gcn::ActionListener,
 
         A_DELETE_COPY(SetupItem)
 
-        ~SetupItem();
+        virtual ~SetupItem();
 
         void load();
 
@@ -429,7 +429,7 @@ class SetupItemSliderList : public SetupItem
     public:
         A_DELETE_COPY(SetupItemSliderList)
 
-        ~SetupItemSliderList();
+        virtual ~SetupItemSliderList();
 
         void createControls();