diff --git a/src/Mod/Mesh/App/Core/Elements.cpp b/src/Mod/Mesh/App/Core/Elements.cpp
index 3bd4a14f5a..23e9ef6f2d 100644
--- a/src/Mod/Mesh/App/Core/Elements.cpp
+++ b/src/Mod/Mesh/App/Core/Elements.cpp
@@ -39,6 +39,11 @@
 using namespace MeshCore;
 using namespace Wm4;
 
+MeshPointArray::MeshPointArray(const MeshPointArray& ary)
+  : TMeshPointArray(ary)
+{
+}
+
 unsigned long MeshPointArray::Get (const MeshPoint &rclPoint)
 {
   iterator clIter;
@@ -97,6 +102,12 @@ void MeshPointArray::Transform(const Base::Matrix4D& mat)
     mat.multVec(*pP,*pP);
 }
 
+MeshFacetArray::MeshFacetArray(const MeshFacetArray& ary)
+  : TMeshFacetArray(ary)
+{
+}
+
+
 void MeshFacetArray::Erase (_TIterator pIter)
 {
   unsigned long i, *pulN;
diff --git a/src/Mod/Mesh/App/Core/Elements.h b/src/Mod/Mesh/App/Core/Elements.h
index 83bf821ef5..70a8469272 100644
--- a/src/Mod/Mesh/App/Core/Elements.h
+++ b/src/Mod/Mesh/App/Core/Elements.h
@@ -548,6 +548,8 @@ public:
   MeshPointArray (void) { }
   // constructor
   MeshPointArray (unsigned long ulSize) : TMeshPointArray(ulSize) { }
+  /// copy-constructor
+  MeshPointArray (const MeshPointArray&);
   // Destructor
   ~MeshPointArray (void) { }
   //@}
@@ -600,6 +602,8 @@ public:
     MeshFacetArray (void) { }
     /// constructor
     MeshFacetArray (unsigned long ulSize) : TMeshFacetArray(ulSize) { }
+    /// copy-constructor
+    MeshFacetArray (const MeshFacetArray&);
     /// destructor
     ~MeshFacetArray (void) { }
     //@}
diff --git a/src/Mod/Mesh/App/Core/KDTree.cpp b/src/Mod/Mesh/App/Core/KDTree.cpp
index c7a7f72377..adf5b39dcd 100644
--- a/src/Mod/Mesh/App/Core/KDTree.cpp
+++ b/src/Mod/Mesh/App/Core/KDTree.cpp
@@ -41,6 +41,14 @@ struct Point3d
    {
    }
 
+   Point3d(const Point3d& pnt) : p(pnt.p), i(pnt.i)
+   {
+   }
+
+   ~Point3d()
+   {
+   }
+
    inline value_type operator[](const int N) const
    {
        return p[N];