diff --git a/docs/reference/glib/tmpl/macros.sgml b/docs/reference/glib/tmpl/macros.sgml
index 7f40eb380..cf411ee1c 100644
--- a/docs/reference/glib/tmpl/macros.sgml
+++ b/docs/reference/glib/tmpl/macros.sgml
@@ -227,5 +227,6 @@ turn it off. This macro should only be used for return values and for
in parameters.
-
-
+@Deprecated: 2.30: API providers should replace all existing uses with
+ const and API consumers should adjust their code
+ accordingly.
diff --git a/glib/gmacros.h b/glib/gmacros.h
index 9f9c25dcb..538ded61f 100644
--- a/glib/gmacros.h
+++ b/glib/gmacros.h
@@ -250,11 +250,13 @@
* (usually char*) are const or not. Don't try using this feature for
* functions with C++ linkage.
*/
+#ifndef G_DISABLE_DEPRECATED
#ifdef G_DISABLE_CONST_RETURNS
#define G_CONST_RETURN
#else
#define G_CONST_RETURN const
#endif
+#endif
/*
* The G_LIKELY and G_UNLIKELY macros let the programmer give hints to