Forward declare two explicit specializations.

diff --git a/include/deal.II/lac/trilinos_solver.h b/include/deal.II/lac/trilinos_solver.h
index 71c765d288ce58cc717ec7269317ce4a38d81fbb..7f89c783b87d42e1d96395740b2b8ea65e3b3453 100644 (file)
--- a/include/deal.II/lac/trilinos_solver.h
+++ b/include/deal.II/lac/trilinos_solver.h
@@ -339,10 +339,21 @@ namespace TrilinosWrappers
      * Store a copy of the flags for this particular solver.
      */
     const AdditionalData additional_data;
-
   };
 
 
+  // provide a declaration for two explicit specializations
+  template <>
+  void
+  SolverBase::set_preconditioner(AztecOO                &solver,
+                                 const PreconditionBase &preconditioner);
+
+  template <>
+  void
+  SolverBase::set_preconditioner(AztecOO               &solver,
+                                 const Epetra_Operator &preconditioner);
+
+
 
   /**
    * An implementation of the solver interface using the Trilinos CG solver.