Suppress warning "-Weffc++".

--HG--
branch : develop

src/libs/vlayout/vposition.h

@@ -53,6 +53,9 @@ struct VPositionData
     bool isOriginPaperOrientationPortrait{true};
 };
 
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_GCC("-Weffc++")
+
 class VPosition
 {
 public:
@@ -111,6 +114,8 @@ private:
     void FindBestPosition();
 };
 
+QT_WARNING_POP
+
 //---------------------------------------------------------------------------------------------------------------------
 /**
  * @brief VPosition::FabricGrainline return fabric gainline accoding to paper orientation