this by default (actually GNU++14). */
#if __cplusplus >= 201103
-/* C++11 claims to be available: use it: */
-#define OVERRIDE override
-#define FINAL final
+/* C++11 claims to be available: use it. final/override were only
+ implemented in 4.7, though. */
+# if GCC_VERSION < 4007
+# define OVERRIDE
+# define FINAL
+# else
+# define OVERRIDE override
+# define FINAL final
+# endif
+#elif GCC_VERSION >= 4007
+/* G++ 4.7 supports __final in C++98. */
+# define OVERRIDE
+# define FINAL __final
#else
/* No C++11 support; leave the macros empty: */
-#define OVERRIDE
-#define FINAL
+# define OVERRIDE
+# define FINAL
#endif
#ifdef __cplusplus