diff --git a/googletest/include/gtest/internal/gtest-port.h b/googletest/include/gtest/internal/gtest-port.h
index 141d4579..d768bd6a 100644
--- a/googletest/include/gtest/internal/gtest-port.h
+++ b/googletest/include/gtest/internal/gtest-port.h
@@ -920,14 +920,14 @@ using ::std::tuple_size;
 #endif  // GTEST_HAS_SEH
 
 #ifdef _MSC_VER
-
 # if GTEST_LINKED_AS_SHARED_LIBRARY
 #  define GTEST_API_ __declspec(dllimport)
 # elif GTEST_CREATE_SHARED_LIBRARY
 #  define GTEST_API_ __declspec(dllexport)
 # endif
-
-#endif  // _MSC_VER
+#elif __GNUC__ >= 4 || defined(__clang__)
+# define GTEST_API_ __attribute__((visibility ("default")))
+#endif // _MSC_VER
 
 #ifndef GTEST_API_
 # define GTEST_API_