gtest: build fix for NetBSD

tests/gtest/include/gtest/internal/gtest-port-arch.h

@@ -88,6 +88,8 @@
 # define GTEST_OS_OPENBSD 1
 #elif defined __QNX__
 # define GTEST_OS_QNX 1
+#elif defined(__NetBSD__)
+# define GTEST_OS_NETBSD 1
 #endif  // __CYGWIN__
 
 #endif  // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_ARCH_H_

tests/gtest/include/gtest/internal/gtest-port.h

@@ -790,7 +790,8 @@ using ::std::tuple_size;
      (GTEST_OS_MAC && !GTEST_OS_IOS) || \
      (GTEST_OS_WINDOWS_DESKTOP && _MSC_VER >= 1400) || \
      GTEST_OS_WINDOWS_MINGW || GTEST_OS_AIX || GTEST_OS_HPUX || \
-     GTEST_OS_OPENBSD || GTEST_OS_QNX || GTEST_OS_FREEBSD)
+     GTEST_OS_OPENBSD || GTEST_OS_QNX || GTEST_OS_FREEBSD || \
+     GTEST_OS_NETBSD)
 # define GTEST_HAS_DEATH_TEST 1
 #endif