From f1e50ecab32060d89934cc62e84117064ed386db Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.alekhin@intel.com>
Date: Tue, 3 Oct 2017 18:26:14 +0300
Subject: [PATCH] ts: fix missing std::tr1 (C++17)

---
 modules/ts/include/opencv2/ts.hpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/modules/ts/include/opencv2/ts.hpp b/modules/ts/include/opencv2/ts.hpp
index 82e945aaa0..934dff10aa 100644
--- a/modules/ts/include/opencv2/ts.hpp
+++ b/modules/ts/include/opencv2/ts.hpp
@@ -47,6 +47,14 @@
 #define GTEST_DONT_DEFINE_ASSERT_GT 0
 #define GTEST_DONT_DEFINE_TEST      0
 
+#ifndef GTEST_LANG_CXX11
+#if __cplusplus >= 201103L || (defined(_MSVC_LANG) && !(_MSVC_LANG < 201103))
+#  define GTEST_LANG_CXX11 1
+#  define GTEST_HAS_TR1_TUPLE 0
+#  define GTEST_HAS_COMBINE 1
+# endif
+#endif
+
 #include "opencv2/ts/ts_gtest.h"
 #include "opencv2/ts/ts_ext.hpp"