re-apply ce3a89cb

src/lib/marble/geodata/data/GeoDataFeature.h

@@ -649,13 +649,13 @@ class GEODATA_EXPORT GeoDataFeature : public GeoDataObject
 
     static QString visualCategoryName(GeoDataVisualCategory category);
 
-    virtual void detach();
-
  protected:
     // the d-pointer needs to be protected to be accessible from derived classes
     GeoDataFeaturePrivate* d;
     explicit GeoDataFeature( GeoDataFeaturePrivate* priv );
 
+    virtual void detach();
+
     bool equals( const GeoDataFeature &other ) const;
     using GeoDataObject::equals;