From eab4ace8208411f222a4b5cd743c15e71c9cc3cf Mon Sep 17 00:00:00 2001
From: Henry Weller <http://openfoam.org>
Date: Mon, 4 Dec 2017 12:33:57 +0000
Subject: [PATCH] ParaViewFunctions: Remove warning message in ParaView when
 built with OpenGL back-end

Patch contributed by Bruno Santos
Resolves patch request https://bugs.openfoam.org/view.php?id=2779
---
 etc/tools/ParaViewFunctions | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/etc/tools/ParaViewFunctions b/etc/tools/ParaViewFunctions
index 3f5ceea0..da0585f1 100644
--- a/etc/tools/ParaViewFunctions
+++ b/etc/tools/ParaViewFunctions
@@ -413,7 +413,12 @@ configRenderingBackend()
     # Choose the rendering engine
     if [ -n "${RENDERING_BACKEND}" ]
     then
-        addCMakeVariable  "VTK_RENDERING_BACKEND=$RENDERING_BACKEND"
+        addCMakeVariable  "VTK_RENDERING_BACKEND=${RENDERING_BACKEND}"
+
+        if [ "${RENDERING_BACKEND}" = "OpenGL" ]
+        then
+            addCMakeVariable  "VTK_LEGACY_SILENT=ON"
+        fi
     else
         usage "*** Error: No rendering backend is defined"
     fi