Use <tuple> instead of <tr1/tuple> when the compiler is not gcc, to conform with the TR1 spec.

include/gtest/gtest-param-test.h

@@ -156,9 +156,6 @@ INSTANTIATE_TEST_CASE_P(AnotherInstantiationName, FooTest, ValuesIn(pets));
 #include <gtest/internal/gtest-internal.h>
 #include <gtest/internal/gtest-param-util.h>
 #include <gtest/internal/gtest-param-util-generated.h>
-#ifdef GTEST_HAS_COMBINE
-#include <tr1/tuple>
-#endif  // GTEST_HAS_COMBINE
 
 namespace testing {
 

include/gtest/gtest-param-test.h.pump

@@ -157,9 +157,6 @@ INSTANTIATE_TEST_CASE_P(AnotherInstantiationName, FooTest, ValuesIn(pets));
 #include <gtest/internal/gtest-internal.h>
 #include <gtest/internal/gtest-param-util.h>
 #include <gtest/internal/gtest-param-util-generated.h>
-#ifdef GTEST_HAS_COMBINE
-#include <tr1/tuple>
-#endif  // GTEST_HAS_COMBINE
 
 namespace testing {
 

include/gtest/internal/gtest-param-util-generated.h

@@ -48,10 +48,6 @@
 
 #ifdef GTEST_HAS_PARAM_TEST
 
-#ifdef GTEST_HAS_COMBINE
-#include <tr1/tuple>
-#endif  // GTEST_HAS_COMBINE
-
 #include <gtest/internal/gtest-param-util.h>
 
 namespace testing {

include/gtest/internal/gtest-param-util-generated.h.pump

@@ -49,10 +49,6 @@ $var maxtuple = 10  $$ Maximum number of Combine arguments we want to support.
 
 #ifdef GTEST_HAS_PARAM_TEST
 
-#ifdef GTEST_HAS_COMBINE
-#include <tr1/tuple>
-#endif  // GTEST_HAS_COMBINE
-
 #include <gtest/internal/gtest-param-util.h>
 
 namespace testing {

include/gtest/internal/gtest-port.h

@@ -301,10 +301,10 @@
 
 #endif  // GTEST_HAS_PTHREAD
 
-// Determines whether <tr1/tuple> is available.  If you have <tr1/tuple>
+// Determines whether tr1/tuple is available.  If you have tr1/tuple
 // on your platform, define GTEST_HAS_TR1_TUPLE=1 for both the Google
 // Test project and your tests. If you would like Google Test to detect
-// <tr1/tuple> on your platform automatically, please open an issue
+// tr1/tuple on your platform automatically, please open an issue
 // ticket at http://code.google.com/p/googletest.
 #ifndef GTEST_HAS_TR1_TUPLE
 // The user didn't tell us, so we need to figure it out.
@@ -317,6 +317,21 @@
 #endif  // __GNUC__
 #endif  // GTEST_HAS_TR1_TUPLE
 
+// To avoid conditional compilation everywhere, we make it
+// gtest-port.h's responsibility to #include the header implementing
+// tr1/tuple.
+#if GTEST_HAS_TR1_TUPLE
+#if defined(__GNUC__)
+// GCC implements tr1/tuple in the <tr1/tuple> header.  This does not
+// conform to the TR1 spec, which requires the header to be <tuple>.
+#include <tr1/tuple>
+#else
+// If the compiler is not GCC, we assume the user is using a
+// spec-conforming TR1 implementation.
+#include <tuple>
+#endif  // __GNUC__
+#endif  // GTEST_HAS_TR1_TUPLE
+
 // Determines whether clone(2) is supported.
 // Usually it will only be available on Linux, excluding
 // Linux on the Itanium architecture.

test/gtest-param-test_test.cc

@@ -42,10 +42,6 @@
 #include <list>
 #include <vector>
 
-#ifdef GTEST_HAS_COMBINE
-#include <tr1/tuple>
-#endif  // GTEST_HAS_COMBINE
-
 // To include gtest-internal-inl.h.
 #define GTEST_IMPLEMENTATION
 #include "src/gtest-internal-inl.h"  // for UnitTestOptions