diff --git a/Periodic_3_triangulation_3/include/CGAL/Periodic_3_Delaunay_triangulation_3.h b/Periodic_3_triangulation_3/include/CGAL/Periodic_3_Delaunay_triangulation_3.h
index 5191d23da80..96b379e2c00 100644
--- a/Periodic_3_triangulation_3/include/CGAL/Periodic_3_Delaunay_triangulation_3.h
+++ b/Periodic_3_triangulation_3/include/CGAL/Periodic_3_Delaunay_triangulation_3.h
@@ -800,7 +800,7 @@ move_point(Vertex_handle v, const Point & p) {
   CGAL_triangulation_expensive_precondition(is_vertex(v));
   // Remember an incident vertex to restart
   // the point location after the removal.
-  Cell_handle c = v->cell();
+  // Cell_handle c = v->cell();
   //Vertex_handle old_neighbor = c->vertex(c->index(v) == 0 ? 1 : 0);
   //  CGAL_triangulation_assertion(old_neighbor != v);
 
diff --git a/Periodic_3_triangulation_3/include/CGAL/Periodic_3_triangulation_3.h b/Periodic_3_triangulation_3/include/CGAL/Periodic_3_triangulation_3.h
index 374f3926268..1cccf2dd8da 100644
--- a/Periodic_3_triangulation_3/include/CGAL/Periodic_3_triangulation_3.h
+++ b/Periodic_3_triangulation_3/include/CGAL/Periodic_3_triangulation_3.h
@@ -3757,8 +3757,8 @@ operator==(const Periodic_3_triangulation_3<GT,TDS1> &t1,
   typedef typename Periodic_3_triangulation_3<GT,TDS1>
       ::Geometric_traits::Compare_xyz_3                       Compare_xyz_3;
   
-  Compare_xyz_3 cmp1 = t1.geom_traits().compare_xyz_3_object();
-  Compare_xyz_3 cmp2 = t2.geom_traits().compare_xyz_3_object();
+  // Compare_xyz_3 cmp1 = t1.geom_traits().compare_xyz_3_object();
+  // Compare_xyz_3 cmp2 = t2.geom_traits().compare_xyz_3_object();
   
   // Some quick checks.
   if (   t1.domain()           != t2.domain()
diff --git a/Periodic_3_triangulation_3/test/Periodic_3_triangulation_3/include/CGAL/_test_cls_periodic_3_triangulation_traits_3.h b/Periodic_3_triangulation_3/test/Periodic_3_triangulation_3/include/CGAL/_test_cls_periodic_3_triangulation_traits_3.h
index 56f33c90726..d69b742d220 100644
--- a/Periodic_3_triangulation_3/test/Periodic_3_triangulation_3/include/CGAL/_test_cls_periodic_3_triangulation_traits_3.h
+++ b/Periodic_3_triangulation_3/test/Periodic_3_triangulation_3/include/CGAL/_test_cls_periodic_3_triangulation_traits_3.h
@@ -19,6 +19,10 @@
 // Author(s)     :  Mariette Yvinec <Mariette.Yvinec@sophia.inria.fr>
 //                  Manuel Caroli <Manuel.Caroli@sophia.inria.fr>
 
+#if (__GNUC__>4) || (__GNUC__ == 4 && __GNUC_MINOR__ >=6)
+#  pragma GCC diagnostic ignored "-Wunused-but-set-variable"
+#endif
+
 template <class Traits>
 void _test_for_given_domain(const Traits & traits,
     typename Traits::Point_3 * p)