From: Daniel Arndt <arndtd@ornl.gov>
Date: Tue, 20 Aug 2019 17:36:34 +0000 (-0400)
Subject: Fix tuple.h
X-Git-Tag: v9.2.0-rc1~1216^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F8608%2Fhead;p=dealii.git

Fix tuple.h
---

diff --git a/include/deal.II/base/std_cxx17/tuple.h b/include/deal.II/base/std_cxx17/tuple.h
index 038ffcb43a..5d56d82b05 100644
--- a/include/deal.II/base/std_cxx17/tuple.h
+++ b/include/deal.II/base/std_cxx17/tuple.h
@@ -19,6 +19,8 @@
 
 #ifndef DEAL_II_WITH_CXX17
 #  include <deal.II/base/std_cxx14/utility.h>
+#else
+#  include <tuple>
 #endif
 
 #include <cmath>