From dd08a6d68dd94a2cf6b4881fec79402439051a2f Mon Sep 17 00:00:00 2001
From: Dmitri Naumov <dmitri.naumov@ufz.de>
Date: Thu, 20 Jul 2017 12:10:31 +0200
Subject: [PATCH] [PL] HM: ProcessData, use fwd.decls. Cleanup incl.

---
 ProcessLib/HydroMechanics/HydroMechanicsProcessData.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/ProcessLib/HydroMechanics/HydroMechanicsProcessData.h b/ProcessLib/HydroMechanics/HydroMechanicsProcessData.h
index 122f981e8f7..ac5618a6b1d 100644
--- a/ProcessLib/HydroMechanics/HydroMechanicsProcessData.h
+++ b/ProcessLib/HydroMechanics/HydroMechanicsProcessData.h
@@ -10,8 +10,15 @@
 #pragma once
 
 #include <Eigen/Dense>
-#include <utility>
 
+namespace MaterialLib
+{
+namespace Solids
+{
+template <int DisplacementDim>
+struct MechanicsBase;
+}
+}
 namespace ProcessLib
 {
 namespace HydroMechanics
-- 
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