From 8e0364a37b68433cd468b68e9d1e44cc7df3c742 Mon Sep 17 00:00:00 2001
From: Gennadiy Civil <misterg@google.com>
Date: Thu, 29 Mar 2018 09:46:13 -0400
Subject: merging gtest-port, 2

---
 googletest/include/gtest/internal/gtest-port.h | 46 +++++---------------------
 1 file changed, 9 insertions(+), 37 deletions(-)

diff --git a/googletest/include/gtest/internal/gtest-port.h b/googletest/include/gtest/internal/gtest-port.h
index 8da15c8c..0455658a 100644
--- a/googletest/include/gtest/internal/gtest-port.h
+++ b/googletest/include/gtest/internal/gtest-port.h
@@ -663,6 +663,7 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // Determines whether Google Test's own tr1 tuple implementation
 // should be used.
 #ifndef GTEST_USE_OWN_TR1_TUPLE
+
 // The user didn't tell us, so we need to figure it out.
 
 // We use our own TR1 tuple if we aren't sure the user has an
@@ -694,6 +695,10 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 #  define GTEST_USE_OWN_TR1_TUPLE 1
 # endif
 
+
+# if GTEST_OS_SYMBIAN
+#  define GTEST_USE_OWN_TR1_TUPLE 1
+# endif  // GTEST_OS_SYMBIAN
 #endif  // GTEST_USE_OWN_TR1_TUPLE
 
 // To avoid conditional compilation we make it gtest-port.h's responsibility
@@ -712,22 +717,6 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 
 # if GTEST_USE_OWN_TR1_TUPLE
 #  include "gtest/internal/gtest-tuple.h"  // IWYU pragma: export  // NOLINT
-# elif GTEST_ENV_HAS_STD_TUPLE_
-#  include <tuple>
-// C++11 puts its tuple into the ::std namespace rather than
-// ::std::tr1.  gtest expects tuple to live in ::std::tr1, so put it there.
-// This causes undefined behavior, but supported compilers react in
-// the way we intend.
-namespace std {
-namespace tr1 {
-using ::std::get;
-using ::std::make_tuple;
-using ::std::tuple;
-using ::std::tuple_element;
-using ::std::tuple_size;
-}
-}
-
 # elif GTEST_OS_SYMBIAN
 
 // On Symbian, BOOST_HAS_TR1_TUPLE causes Boost's TR1 tuple library to
@@ -744,29 +733,12 @@ using ::std::tuple_size;
 #  define BOOST_TR1_DETAIL_CONFIG_HPP_INCLUDED
 #  include <tuple>  // IWYU pragma: export  // NOLINT
 
-# elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40000)
-// GCC 4.0+ implements tr1/tuple in the <tr1/tuple> header.  This does
-// not conform to the TR1 spec, which requires the header to be <tuple>.
-
-#  if !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302
-// Until version 4.3.2, gcc has a bug that causes <tr1/functional>,
-// which is #included by <tr1/tuple>, to not compile when RTTI is
-// disabled.  _TR1_FUNCTIONAL is the header guard for
-// <tr1/functional>.  Hence the following #define is a hack to prevent
-// <tr1/functional> from being included.
-#   define _TR1_FUNCTIONAL 1
-#   include <tr1/tuple>
-#   undef _TR1_FUNCTIONAL  // Allows the user to #include
-                        // <tr1/functional> if they choose to.
-#  else
-#   include <tr1/tuple>  // NOLINT
-#  endif  // !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302
-
-# else
-// If the compiler is not GCC 4.0+, we assume the user is using a
-// spec-conforming TR1 implementation.
+// VS 2010 now has tr1 support.
+# elif _MSC_VER >= 1600
 #  include <tuple>  // IWYU pragma: export  // NOLINT
 
+# else  // GTEST_USE_OWN_TR1_TUPLE
+#  include <tr1/tuple>  // IWYU pragma: export  // NOLINT
 # endif  // GTEST_USE_OWN_TR1_TUPLE
 
 #endif  // GTEST_HAS_TR1_TUPLE
-- 
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