+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4)
+#define _DBUS_GNUC_PRINTF( format_idx, arg_idx ) \
+ __attribute__((__format__ (__printf__, format_idx, arg_idx)))
+#define _DBUS_GNUC_NORETURN \
+ __attribute__((__noreturn__))
+#else /* !__GNUC__ */
+#define _DBUS_GNUC_PRINTF( format_idx, arg_idx )
+#define _DBUS_GNUC_NORETURN
+#endif /* !__GNUC__ */
+
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
+#define DBUS_MALLOC __attribute__((__malloc__))
+#else
+#define DBUS_MALLOC
+#endif
+
+#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+#define DBUS_ALLOC_SIZE(x) __attribute__((__alloc_size__(x)))
+#define DBUS_ALLOC_SIZE2(x,y) __attribute__((__alloc_size__(x,y)))
+#else
+#define DBUS_ALLOC_SIZE(x)
+#define DBUS_ALLOC_SIZE2(x,y)
+#endif
+
+#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
+#define _DBUS_GNUC_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
+#else
+#define _DBUS_GNUC_WARN_UNUSED_RESULT
+#endif
+
+/** @def _DBUS_GNUC_PRINTF
+ * used to tell gcc about printf format strings
+ */
+/** @def _DBUS_GNUC_NORETURN
+ * used to tell gcc about functions that never return, such as _dbus_abort()
+ */
+/** @def _DBUS_GNUC_WARN_UNUSED_RESULT
+ * used to tell gcc about functions whose result must be used
+ */
+