final/override were only implemented in g++ 4.7.
include/ChangeLog
2016-10-14 Pedro Alves <palves@redhat.com>
* ansidecl.h [__cplusplus >= 201103 && GCC_VERSION < 4007] (FINAL,
OVERRIDE): Define as empty.
[__cplusplus < 201103 && GCC_VERSION < 4007] (FINAL): Define as
__final.
[__cplusplus < 201103 && GCC_VERSION >= 4007] (OVERRIDE): Define as
empty.
2016-10-14 Pedro Alves <palves@redhat.com>
+ * ansidecl.h [__cplusplus >= 201103 && GCC_VERSION < 4007] (FINAL,
+ OVERRIDE): Define as empty.
+ [__cplusplus < 201103 && GCC_VERSION < 4007] (FINAL): Define as
+ __final.
+ [__cplusplus < 201103 && GCC_VERSION >= 4007] (OVERRIDE): Define as
+ empty.
+
+2016-10-14 Pedro Alves <palves@redhat.com>
+
* ansidecl.h (GCC_FINAL): Delete.
(OVERRIDE, FINAL): New, moved from gcc/coretypes.h.
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