commit 23699acca083589be9dc3b6e8e5c5d09f654648d
Author: marina.kolpakova <marina.kolpakova@itseez.com>
Date:   Mon Oct 8 02:37:22 2012 +0400

    fix for bug 2264
    
    fix compilation OpenCV with cxx11 under Ubuntu with clang and gcc 4.7

diff --git a/modules/ts/include/opencv2/ts/ts_gtest.h b/modules/ts/include/opencv2/ts/ts_gtest.h
index f98f71b..42eb608 100644
--- src/libs_3rdparty/gtest/src/gtest/internal/gtest-port.h.orig
+++ src/libs_3rdparty/gtest/src/gtest/internal/gtest-port.h
@@ -1654,7 +1654,21 @@ inline bool operator!=(const GTEST_10_TUPLE_(T)& t,
 #   undef _TR1_FUNCTIONAL  // Allows the user to #include
                         // <tr1/functional> if he chooses to.
 #  else
+#  if defined (__cplusplus) && __cplusplus > 199711L
+#   include <tuple>
+namespace std {
+    namespace tr1 {
+        using std::tuple;
+        using std::tuple_element;
+        using std::get;
+        using std::tuple_size;
+        using std::make_tuple;
+    }
+}
+#  else
 #   include <tr1/tuple>  // NOLINT
+#  endif
+
 #  endif  // !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302
 
 # else