diff --git a/Linear_cell_complex/examples/Linear_cell_complex/CMakeLists.txt b/Linear_cell_complex/examples/Linear_cell_complex/CMakeLists.txt
index 9c2193256ad..70c0eccfa66 100644
--- a/Linear_cell_complex/examples/Linear_cell_complex/CMakeLists.txt
+++ b/Linear_cell_complex/examples/Linear_cell_complex/CMakeLists.txt
@@ -11,10 +11,10 @@ endif()
 
 # If you want to visualize a linear cell complex, you can use the following viewer
 # based on qt. Just uncomment the following line, plus the line find_package(CGALBasicViewer) below
-# find_package(CGAL COMPONENTS Qt5)
+find_package(CGAL COMPONENTS Qt5)
 
 # If you don't want to visualize, use the following line (otherwise comment it)
-find_package(CGAL QUIET)
+# find_package(CGAL QUIET)
 
 # For Gprof.
 # ADD_DEFINITIONS("-pg")
@@ -24,38 +24,28 @@ find_package(CGAL QUIET)
 # add_definition(-DCGAL_DISABLE_ROUNDING_MATH_CHECK)
 
 if ( CGAL_FOUND )
-  include( ${CGAL_USE_FILE} )
-  # find_package(CGALBasicViewer)
+  include(${CGAL_USE_FILE})
+  find_package(CGALBasicViewer)
 
   include( CGAL_CreateSingleSourceCGALProgram )
   include_directories(BEFORE ../../include)
 
-  create_single_source_cgal_program( "linear_cell_complex_3.cpp" )
-  create_single_source_cgal_program( "linear_cell_complex_4.cpp" )
-  create_single_source_cgal_program(
-                  "linear_cell_complex_3_with_colored_vertices.cpp" )
-  create_single_source_cgal_program(
-                  "linear_cell_complex_3_with_mypoint.cpp" )
-
+  create_single_source_cgal_program("linear_cell_complex_3.cpp")
+  create_single_source_cgal_program("linear_cell_complex_4.cpp")
+  create_single_source_cgal_program("linear_cell_complex_3_with_colored_vertices.cpp")
+  create_single_source_cgal_program("linear_cell_complex_3_with_mypoint.cpp")
   create_single_source_cgal_program("plane_graph_to_lcc_2.cpp")
   create_single_source_cgal_program("linear_cell_complex_3_attributes_management.cpp")
+  create_single_source_cgal_program("voronoi_2.cpp")
+  create_single_source_cgal_program("voronoi_3.cpp")
+  create_single_source_cgal_program("gmap_linear_cell_complex_3.cpp")
+  create_single_source_cgal_program("linear_cell_complex_3_operations.cpp")  
 
-  add_executable(voronoi_2 voronoi_2.cpp)
-  target_link_libraries(voronoi_2 ${CGAL_LIBRARIES} ${CGAL_3RD_PARTY_LIBRARIES}
-                                  ${BASIC_VIEWER_LIBRARIES})
-  add_executable(voronoi_3 voronoi_3.cpp)
-  target_link_libraries(voronoi_3 ${CGAL_LIBRARIES} ${CGAL_3RD_PARTY_LIBRARIES}
-                                  ${BASIC_VIEWER_LIBRARIES})
-
-  if (USE_BASIC_VIEWER)
-    qt5_use_modules(voronoi_3 ${BASIC_VIEWER_MODULES})
-  endif(USE_BASIC_VIEWER)
-    
-  create_single_source_cgal_program( "gmap_linear_cell_complex_3.cpp" )
-
-  add_executable(linear_cell_complex_3_operations linear_cell_complex_3_operations.cpp)
-  target_link_libraries(linear_cell_complex_3_operations ${CGAL_LIBRARIES} ${CGAL_3RD_PARTY_LIBRARIES}
-                                  ${BASIC_VIEWER_LIBRARIES})  
+  create_single_source_cgal_program("display_linear_cell_complex.cpp")                           
+if (USE_BASIC_VIEWER)
+  target_link_libraries(display_linear_cell_complex ${BASIC_VIEWER_LIBRARIES})
+  qt5_use_modules(display_linear_cell_complex ${BASIC_VIEWER_MODULES})
+endif(USE_BASIC_VIEWER)
 else()
 
   message(STATUS "This program requires the CGAL library, "
diff --git a/Linear_cell_complex/examples/Linear_cell_complex/display_linear_cell_complex.cpp b/Linear_cell_complex/examples/Linear_cell_complex/display_linear_cell_complex.cpp
new file mode 100644
index 00000000000..32ec76c99dd
--- /dev/null
+++ b/Linear_cell_complex/examples/Linear_cell_complex/display_linear_cell_complex.cpp
@@ -0,0 +1,26 @@
+#include <CGAL/Linear_cell_complex_for_combinatorial_map.h>
+
+#ifdef CGAL_USE_BASIC_VIEWER
+#include <CGAL/Linear_cell_complex_viewer_qt.h>
+#endif
+
+typedef CGAL::Linear_cell_complex_for_combinatorial_map<3> LCC;
+typedef LCC::Point Point;
+
+int main()
+{
+  LCC lcc;
+  lcc.make_hexahedron(Point(0,0,0), Point(5,0,0),
+                      Point(5,5,0), Point(0,5,0),
+                      Point(0,5,4), Point(0,0,4),
+                      Point(5,0,4), Point(5,5,4));
+
+  lcc.display_characteristics(std::cout)<<", valid=" 
+                                        <<lcc.is_valid()<<std::endl;
+
+#ifdef CGAL_USE_BASIC_VIEWER
+  CGAL::display(lcc);
+#endif // CGAL_USE_BASIC_VIEWER
+
+  return EXIT_SUCCESS;
+}
diff --git a/Linear_cell_complex/examples/Linear_cell_complex/linear_cell_complex_3_operations.cpp b/Linear_cell_complex/examples/Linear_cell_complex/linear_cell_complex_3_operations.cpp
index 39bc3986745..ce6c0735081 100644
--- a/Linear_cell_complex/examples/Linear_cell_complex/linear_cell_complex_3_operations.cpp
+++ b/Linear_cell_complex/examples/Linear_cell_complex/linear_cell_complex_3_operations.cpp
@@ -2,11 +2,6 @@
 #include <CGAL/Linear_cell_complex_for_generalized_map.h>
 #include <vector>
 
-
-#ifdef CGAL_USE_BASIC_VIEWER
-#include <CGAL/Linear_cell_complex_viewer_qt.h>
-#endif
-
 typedef CGAL::Linear_cell_complex_for_combinatorial_map<3> LCC_3_cmap;
 typedef CGAL::Linear_cell_complex_for_generalized_map<3> LCC_3_gmap;
 
@@ -54,10 +49,6 @@ void run_test()
   lcc.template sew<3>(lcc.template opposite<2>(lcc.next(dh1)),
                       lcc.other_orientation(lcc.template opposite<2>(lcc.previous(dh3))));
 
-#ifdef CGAL_USE_BASIC_VIEWER
-  display(lcc);
-#endif // CGAL_USE_BASIC_VIEWER
-
   lcc.insert_cell_1_in_cell_2(lcc.next(dh1),
                               Alpha1<LCC>::run(lcc, lcc.previous(dh1)));
   dh2=lcc.template opposite<2>(lcc.next(lcc.next
@@ -73,14 +64,9 @@ void run_test()
   lcc.insert_cell_2_in_cell_3(path.begin(),path.end());
 
   lcc.display_characteristics(std::cout) << ", valid=" 
-                                         << lcc.is_valid() << std::endl;
-  
-#ifdef CGAL_USE_BASIC_VIEWER
-  display(lcc);
-#endif // CGAL_USE_BASIC_VIEWER
+                                         << lcc.is_valid() << std::endl;  
 }
 
-
 int main()
 {
   run_test<LCC_3_cmap>();
diff --git a/Linear_cell_complex/examples/Linear_cell_complex/voronoi_2.cpp b/Linear_cell_complex/examples/Linear_cell_complex/voronoi_2.cpp
index 7833696d633..64fe08e3b42 100644
--- a/Linear_cell_complex/examples/Linear_cell_complex/voronoi_2.cpp
+++ b/Linear_cell_complex/examples/Linear_cell_complex/voronoi_2.cpp
@@ -7,10 +7,6 @@
 #include <fstream>
 
 
-#ifdef CGAL_USE_BASIC_VIEWER
-#include <CGAL/Linear_cell_complex_viewer_qt.h>
-#endif
-
 // This example works both with cmap and gmap as combinatorial data structure.
 //typedef CGAL::Linear_cell_complex_for_combinatorial_map<2> LCC_2;
 typedef CGAL::Linear_cell_complex_for_generalized_map<2> LCC_2;
@@ -56,10 +52,6 @@ void display_voronoi(LCC_2& alcc, Dart_handle adart)
   alcc.display_characteristics(std::cout) << ", valid=" 
                                           << alcc.is_valid()
                                           << std::endl;
-  
-#ifdef CGAL_USE_BASIC_VIEWER
-  display(alcc);
-#endif // CGAL_USE_BASIC_VIEWER
 }
 
 template<typename LCC, typename TR>
diff --git a/Linear_cell_complex/examples/Linear_cell_complex/voronoi_3.cpp b/Linear_cell_complex/examples/Linear_cell_complex/voronoi_3.cpp
index 318028bda3a..30f94107b00 100644
--- a/Linear_cell_complex/examples/Linear_cell_complex/voronoi_3.cpp
+++ b/Linear_cell_complex/examples/Linear_cell_complex/voronoi_3.cpp
@@ -5,10 +5,6 @@
 #include <iostream>
 #include <fstream>
 
-#ifdef CGAL_USE_BASIC_VIEWER
-#include <CGAL/Linear_cell_complex_viewer_qt.h>
-#endif
-
 /* // If you want to use exact constructions.
 #include <CGAL/Exact_predicates_exact_constructions_kernel.h>
 typedef CGAL::Linear_cell_complex<3,3,
@@ -58,10 +54,6 @@ void display_voronoi(LCC_3& alcc, Dart_handle adart)
   alcc.display_characteristics(std::cout) << ", valid=" 
                                           << alcc.is_valid()
                                           << std::endl;
-
-#ifdef CGAL_USE_BASIC_VIEWER
-  display(alcc);
-#endif // CGAL_USE_BASIC_VIEWER
 }
 
 template<typename LCC, typename TR>