Enable -Wnon-virtual-dtor for GCC 4.6

...which has the necessary features to support it.

Change a lot of classes to either contain a protected non-virtual dtor
(which is backwards compatible, so even works for cppumaker-generated
UNO headers) or a public virtual one.

cppuhelper/propertysetmixin.hxx still needs to disable the warning, as
the relevant class has a non-virtual dtor but friends, which would still
cause GCC to warn.

Includes a patch for libcmis, intended to be upstreamed.

1 files changed, 5 insertions, 0 deletions

diff --git a/svtools/source/toolpanel/paneltabbar.cxx b/svtools/source/toolpanel/paneltabbar.cxx
index 9baad589b62c..71e0616916ce 100644
--- a/svtools/source/toolpanel/paneltabbar.cxx
+++ b/svtools/source/toolpanel/paneltabbar.cxx
@@ -100,6 +100,9 @@ namespace svt
         // class, but not at the OutputDevice. This makes the API somewhat weird, as we're now mixing operations on the
         // target device, done in a normalized geometry, with operations on the window, done in a transformed geometry.
         // So, we should get rid of postRenderItem completely.
+
+    protected:
+        ~ITabBarRenderer() {}
     };
     typedef ::boost::shared_ptr< ITabBarRenderer >  PTabBarRenderer;
 
@@ -265,6 +268,8 @@ namespace svt
         {
         }
 
+        virtual ~NWFTabItemRenderer() {}
+
         // ITabBarRenderer
         virtual void        renderBackground() const;
         virtual Rectangle   calculateDecorations( const Rectangle& i_rContentArea, const ItemFlags i_nItemFlags ) const;