From 0a07e12d7737b990605fcd5ad130daffe3f83ee4 Mon Sep 17 00:00:00 2001
From: Martin Kronbichler <kronbichler@lnm.mw.tum.de>
Date: Tue, 31 Oct 2017 15:40:29 +0100
Subject: [PATCH] Avoid warning.

---
 include/deal.II/numerics/data_out_dof_data.templates.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/deal.II/numerics/data_out_dof_data.templates.h b/include/deal.II/numerics/data_out_dof_data.templates.h
index 0777a9c96f..37b44a5463 100644
--- a/include/deal.II/numerics/data_out_dof_data.templates.h
+++ b/include/deal.II/numerics/data_out_dof_data.templates.h
@@ -322,6 +322,7 @@ namespace internal
     double get_component (const NumberType         value,
                           const ComponentExtractor extract_component)
     {
+      (void)extract_component;
       static_assert (numbers::NumberTraits<NumberType>::is_complex == false,
                      "This function must not be called for complex-valued data types.");
       Assert (extract_component == ComponentExtractor::real_part,
-- 
2.39.5