From bbf0b89356bfa32f38e4fcc7815ef3c7e26e2ef3 Mon Sep 17 00:00:00 2001
From: DennisGlaeser <dennis.glaeser@iws.uni-stuttgart.de>
Date: Thu, 9 Feb 2017 17:52:41 +0100
Subject: [PATCH] use forward declarations instead of includes

---
 dumux/discretization/cellcentered/mpfa/darcyslaw.hh   | 2 ++
 dumux/porousmediumflow/implicit/fluxvariablescache.hh | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/dumux/discretization/cellcentered/mpfa/darcyslaw.hh b/dumux/discretization/cellcentered/mpfa/darcyslaw.hh
index d916561672..9e0a0bd49c 100644
--- a/dumux/discretization/cellcentered/mpfa/darcyslaw.hh
+++ b/dumux/discretization/cellcentered/mpfa/darcyslaw.hh
@@ -35,6 +35,8 @@ namespace Properties
 {
 // forward declaration of properties
 NEW_PROP_TAG(ProblemEnableGravity);
+NEW_PROP_TAG(MpfaHelper);
+NEW_PROP_TAG(BoundaryInteractionVolume);
 }
 
 /*!
diff --git a/dumux/porousmediumflow/implicit/fluxvariablescache.hh b/dumux/porousmediumflow/implicit/fluxvariablescache.hh
index 558d883154..a7c02b5ac2 100644
--- a/dumux/porousmediumflow/implicit/fluxvariablescache.hh
+++ b/dumux/porousmediumflow/implicit/fluxvariablescache.hh
@@ -24,7 +24,6 @@
 #define DUMUX_POROUSMEDIUM_IMPLICIT_FLUXVARIABLESCACHE_HH
 
 #include <dumux/implicit/properties.hh>
-#include <dumux/implicit/cellcentered/mpfa/properties.hh>
 #include <dune/localfunctions/lagrange/pqkfactory.hh>
 #include <dumux/discretization/methods.hh>
 
@@ -38,6 +37,7 @@ namespace Properties
 {
 // forward declaration
 NEW_PROP_TAG(NumPhases);
+NEW_PROP_TAG(InteriorBoundaryData);
 }
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////////////////
-- 
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