Add necessary header files.

diff --git a/tests/multigrid-global-coarsening/mg_transfer_util.h b/tests/multigrid-global-coarsening/mg_transfer_util.h
index 3bdce0a67218000df09ba6902b9589d3f29fc38a..5706f322a0c4ee11c992d80f59485e0f52ad29ec 100644 (file)
--- a/tests/multigrid-global-coarsening/mg_transfer_util.h
+++ b/tests/multigrid-global-coarsening/mg_transfer_util.h
@@ -17,6 +17,9 @@
 
 #include <deal.II/base/function_lib.h>
 
+#include <deal.II/multigrid/mg_constrained_dofs.h>
+#include <deal.II/multigrid/mg_transfer_global_coarsening.h>
+
 #include <deal.II/numerics/data_out.h>
 #include <deal.II/numerics/vector_tools.h>