Fixed warnings in googletest

test/gtest/gtest-all.cc

@@ -601,7 +601,7 @@ class GTestFlagSaver {
   bool list_tests_;
   String output_;
   bool print_time_;
-  bool pretty_;
+  // bool pretty_;
   internal::Int32 random_seed_;
   internal::Int32 repeat_;
   bool shuffle_;
@@ -7497,7 +7497,7 @@ namespace internal {
 // of them.
 const char kPathSeparator = '\\';
 const char kAlternatePathSeparator = '/';
-const char kPathSeparatorString[] = "\\";
+// const char kPathSeparatorString[] = "\\";
 const char kAlternatePathSeparatorString[] = "/";
 # if GTEST_OS_WINDOWS_MOBILE
 // Windows CE doesn't have a current directory. You should not use
@@ -7511,7 +7511,7 @@ const char kCurrentDirectoryString[] = ".\\";
 # endif  // GTEST_OS_WINDOWS_MOBILE
 #else
 const char kPathSeparator = '/';
-const char kPathSeparatorString[] = "/";
+// const char kPathSeparatorString[] = "/";
 const char kCurrentDirectoryString[] = "./";
 #endif  // GTEST_OS_WINDOWS
 

test/gtest/gtest.h

@@ -18336,6 +18336,12 @@ AssertionResult CmpHelperEQ(const char* expected_expression,
 # pragma warning(push)          // Saves the current warning state.
 # pragma warning(disable:4389)  // Temporarily disables warning on
                                // signed/unsigned mismatch.
+#elif __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wsign-compare"
+#elif __GNUC__
+#pragma gcc diagnostic push
+#pragma gcc diagnostic ignored "-Wsign-compare"
 #endif
 
   if (expected == actual) {
@@ -18344,6 +18350,10 @@ AssertionResult CmpHelperEQ(const char* expected_expression,
 
 #ifdef _MSC_VER
 # pragma warning(pop)          // Restores the warning state.
+#elif __clang__
+#pragma clang diagnostic pop
+#elif __GNUC__
+#pragma gcc diagnostic pop
 #endif
 
   return EqFailure(expected_expression,