From d7d9a3ecd879519ff86b812cd4a52cf075dffdc6 Mon Sep 17 00:00:00 2001
From: Markus Blatt <markus@dr-blatt.de>
Date: Fri, 7 Dec 2018 12:08:03 +0100
Subject: [PATCH] bugfix: Fallback to SeqILUn in tracer code for DUNE < 2.6

In that versions SeqILU was not there.
---
 ebos/ecltracermodel.hh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ebos/ecltracermodel.hh b/ebos/ecltracermodel.hh
index b340dc7ae..4d103f88c 100644
--- a/ebos/ecltracermodel.hh
+++ b/ebos/ecltracermodel.hh
@@ -392,11 +392,15 @@ protected:
         typedef Dune::BiCGSTABSolver<TracerVector> TracerSolver;
         typedef Dune::MatrixAdapter<TracerMatrix, TracerVector , TracerVector > TracerOperator;
         typedef Dune::SeqScalarProduct< TracerVector > TracerScalarProduct ;
+#if DUNE_VERSION_NEWER(DUNE_ISTL, 2,6)
         typedef Dune::SeqILU< TracerMatrix, TracerVector, TracerVector  > TracerPreconditioner;
+#else
+        typedef Dune::SeqILUn< TracerMatrix, TracerVector, TracerVector  > TracerPreconditioner;
+#endif
 
         TracerOperator tracerOperator(M);
         TracerScalarProduct tracerScalarProduct;
-        TracerPreconditioner tracerPreconditioner(M, 1);
+        TracerPreconditioner tracerPreconditioner(M, 0, 1); // results in ILU0
 
         TracerSolver solver (tracerOperator, tracerScalarProduct,
                              tracerPreconditioner, tolerance, maxIter,