Adjust the include guard to the name of the file.

git-svn-id: https://svn.dealii.org/trunk@32822 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/include/deal.II/numerics/derivative_approximation.h b/deal.II/include/deal.II/numerics/derivative_approximation.h
index 7b43be815100313bb55d1e509961d4d386894c11..4cff0bef05d3b2f1cebf52d8a69e84bb94e11551 100644 (file)
--- a/deal.II/include/deal.II/numerics/derivative_approximation.h
+++ b/deal.II/include/deal.II/numerics/derivative_approximation.h
@@ -1,7 +1,7 @@
 // ---------------------------------------------------------------------
 // $Id$
 //
-// Copyright (C) 2000 - 2013 by the deal.II authors
+// Copyright (C) 2000 - 2014 by the deal.II authors
 //
 // This file is part of the deal.II library.
 //
@@ -14,8 +14,8 @@
 //
 // ---------------------------------------------------------------------
 
-#ifndef __deal2__gradient_estimator_h
-#define __deal2__gradient_estimator_h
+#ifndef __deal2__derivative_approximation_h
+#define __deal2__derivative_approximation_h
 
 #include <deal.II/base/config.h>
 #include <deal.II/base/exceptions.h>