Clang WaE: -Woverloaded-virtual weirdness, this seems to help

cppcanvas/source/mtfrenderer/bitmapaction.cxx

@@ -60,6 +60,8 @@ namespace cppcanvas
             class BitmapAction : public CachedPrimitiveBase
             {
             public:
+                using CachedPrimitiveBase::render;
+
                 BitmapAction( const ::BitmapEx&,
                               const ::basegfx::B2DPoint& rDstPoint,
                               const CanvasSharedPtr&,

cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx

@@ -79,11 +79,11 @@ namespace cppcanvas
         protected:
             using Action::render;
 
-        private:
             virtual bool render( ::com::sun::star::uno::Reference<
                                      ::com::sun::star::rendering::XCachedPrimitive >& rCachedPrimitive,
                                  const ::basegfx::B2DHomMatrix&                       rTransformation ) const = 0;
 
+        private:
             CanvasSharedPtr                                             mpCanvas;
             mutable ::com::sun::star::uno::Reference<
                     ::com::sun::star::rendering::XCachedPrimitive >     mxCachedPrimitive;

cppcanvas/source/mtfrenderer/polypolyaction.cxx

@@ -61,6 +61,8 @@ namespace cppcanvas
             class PolyPolyAction : public CachedPrimitiveBase
             {
             public:
+                using CachedPrimitiveBase::render;
+
                 PolyPolyAction( const ::basegfx::B2DPolyPolygon&,
                                 const CanvasSharedPtr&,
                                 const OutDevState&,
@@ -245,6 +247,8 @@ namespace cppcanvas
             class TexturedPolyPolyAction : public CachedPrimitiveBase
             {
             public:
+                using CachedPrimitiveBase::render;
+
                 TexturedPolyPolyAction( const ::basegfx::B2DPolyPolygon& rPoly,
                                         const CanvasSharedPtr&           rCanvas,
                                         const OutDevState&               rState,
@@ -359,6 +363,8 @@ namespace cppcanvas
             class StrokedPolyPolyAction : public CachedPrimitiveBase
             {
             public:
+                using CachedPrimitiveBase::render;
+
                 StrokedPolyPolyAction( const ::basegfx::B2DPolyPolygon&     rPoly,
                                        const CanvasSharedPtr&               rCanvas,
                                        const OutDevState&                   rState,

cppcanvas/source/mtfrenderer/rendergraphicaction.cxx

@@ -60,6 +60,8 @@ namespace cppcanvas
             class RenderGraphicAction : public CachedPrimitiveBase
             {
             public:
+                using CachedPrimitiveBase::render;
+
                 RenderGraphicAction( const ::vcl::RenderGraphic& rRenderGraphic,
                               const ::basegfx::B2DPoint& rDstPoint,
                               const ::basegfx::B2DVector& rDstSize,