+# define CONST
+# define MALLOC
+# define NONNULL(...)
+# define PURE
+# define ENDNULL
+#endif
+
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+# define ALLOC_SIZE(...) __attribute__((alloc_size(__VA_ARGS__)))
+# define CHECK_PRINTF(fmt, arg) __attribute__((format(printf, fmt, arg)))
+#else
+# define ALLOC_SIZE(...)
+# define CHECK_PRINTF(fmt, arg)