diff --git a/Core/examples/Core/delaunay.cpp b/Core/examples/Core/delaunay.cpp
index 3ff80b906a1..05f5cb42e92 100644
--- a/Core/examples/Core/delaunay.cpp
+++ b/Core/examples/Core/delaunay.cpp
@@ -1,9 +1,7 @@
-#include <CGAL/basic.h>
+#define CORE_NO_AUTOMATIC_NAMESPACE 1
 
-#ifdef CGAL_USE_CORE
 
 #include <CGAL/CORE_Expr.h>
-
 #include <CGAL/Simple_cartesian.h>
 #include <CGAL/Delaunay_triangulation_2.h>
 
@@ -29,14 +27,3 @@ int main() {
 }
 
 
-#else // CGAL_USE_CORE
-
-#include <iostream>
-
-int main()
-{
-  std::cout << "Core is not installed" << std::endl;
-  return 0;
-}
-
-#endif // CGAL_USE_CORE
diff --git a/Core/examples/Core/makefile b/Core/examples/Core/makefile
deleted file mode 100644
index 2016be57db2..00000000000
--- a/Core/examples/Core/makefile
+++ /dev/null
@@ -1,56 +0,0 @@
-# Created by the script cgal_create_makefile
-# This is the makefile for compiling a CGAL application.
-
-#---------------------------------------------------------------------#
-#                    include platform specific settings
-#---------------------------------------------------------------------#
-# Choose the right include file from the <cgalroot>/make directory.
-
-# CGAL_MAKEFILE = ENTER_YOUR_INCLUDE_MAKEFILE_HERE
-
-include $(CGAL_MAKEFILE)
-
-#---------------------------------------------------------------------#
-#                    compiler flags
-#---------------------------------------------------------------------#
-
-CXXFLAGS = -I../../include -DCORE_NO_AUTOMATIC_NAMESPACE\
-           $(TESTSUITE_CXXFLAGS) \
-           $(EXTRA_FLAGS) \
-           $(CGAL_CXXFLAGS) \
-           $(LONG_NAME_PROBLEM_CXXFLAGS) \
-           $(DEBUG_OPT)
-
-#---------------------------------------------------------------------#
-#                    linker flags
-#---------------------------------------------------------------------#
-
-LIBPATH = \
-          $(TESTSUITE_LIBPATH) \
-          $(CGAL_LIBPATH)
-
-LDFLAGS = \
-          $(TESTSUITE_LDFLAGS) \
-          $(LONG_NAME_PROBLEM_LDFLAGS) \
-          $(CGAL_LDFLAGS) 
-
-#---------------------------------------------------------------------#
-#                    target entries
-#---------------------------------------------------------------------#
-
-all:            \
-                delaunay$(EXE_EXT) 
-
-delaunay$(EXE_EXT): delaunay$(OBJ_EXT)
-	$(CGAL_CXX) $(LIBPATH) $(EXE_OPT)delaunay delaunay$(OBJ_EXT) $(LDFLAGS)
-
-clean: \
-                   delaunay.clean 
-
-#---------------------------------------------------------------------#
-#                    suffix rules
-#---------------------------------------------------------------------#
-
-.cpp$(OBJ_EXT):
-	$(CGAL_CXX) $(CXXFLAGS) $(OBJ_OPT) $<
-