Some compilers apparently want to have a full declaration of ConstraintMatrix

if they see it in a default argument.

git-svn-id: https://svn.dealii.org/trunk@31118 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/include/deal.II/numerics/matrix_tools.h b/deal.II/include/deal.II/numerics/matrix_tools.h
index ffacbafac32c51987532fa7b6efba5ea2aef3031..735834df76250d9d121d39b5e19a095229e6a4a3 100644 (file)
--- a/deal.II/include/deal.II/numerics/matrix_tools.h
+++ b/deal.II/include/deal.II/numerics/matrix_tools.h
@@ -21,6 +21,7 @@
 #include <deal.II/base/config.h>
 #include <deal.II/base/exceptions.h>
 #include <deal.II/base/thread_management.h>
+#include <deal.II/lac/constraint_matrix.h>
 #include <deal.II/dofs/function_map.h>
 
 #include <map>
@@ -31,7 +32,6 @@ DEAL_II_NAMESPACE_OPEN
 // forward declarations
 template <int dim> class Quadrature;
 
-class ConstraintMatrix;
 
 template<typename number> class Vector;
 template<typename number> class FullMatrix;