__attribute__((__format__ (__scanf__, format_idx, arg_idx)))
# define _XBT_GNUC_NORETURN __attribute__((__noreturn__))
# define _XBT_GNUC_UNUSED __attribute__((__unused__))
-/* Apparently, constructor priorities are not supported by gcc on Macs */
-# if __APPLE__
-# define _XBT_GNUC_CONSTRUCTOR(prio) __attribute__((__constructor__))
-# define _XBT_GNUC_DESTRUCTOR(prio) __attribute__((__destructor__))
-# else
+/* Constructor priorities exist since gcc 4.3. Apparently, they are however not
+ * supported on Macs. */
+# if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) && !defined(__APPLE__)
# define _XBT_GNUC_CONSTRUCTOR(prio) __attribute__((__constructor__ (prio)))
# define _XBT_GNUC_DESTRUCTOR(prio) __attribute__((__destructor__ (prio)))
+# else
+# define _XBT_GNUC_CONSTRUCTOR(prio) __attribute__((__constructor__))
+# define _XBT_GNUC_DESTRUCTOR(prio) __attribute__((__destructor__))
# endif
# undef _XBT_NEED_INIT_PRAGMA