diff --git a/glib/deprecated/gallocator.c b/glib/deprecated/gallocator.c
index 18319206d..a191eb6e4 100644
--- a/glib/deprecated/gallocator.c
+++ b/glib/deprecated/gallocator.c
@@ -15,6 +15,11 @@
  * Boston, MA 02111-1307, USA.
  */
 
+#include "config.h"
+
+/* we know we are deprecated here, no need for warnings */
+#define GLIB_DISABLE_DEPRECATION_WARNINGS
+
 #include "gallocator.h"
 
 #include <glib/gmessages.h>
diff --git a/glib/deprecated/gcompletion.c b/glib/deprecated/gcompletion.c
index 529e7c9d5..620af0e95 100644
--- a/glib/deprecated/gcompletion.c
+++ b/glib/deprecated/gcompletion.c
@@ -30,6 +30,9 @@
 
 #include "config.h"
 
+/* we know we are deprecated here, no need for warnings */
+#define GLIB_DISABLE_DEPRECATION_WARNINGS
+
 #include "gcompletion.h"
 
 #include <glib/gstrfuncs.h>
diff --git a/glib/deprecated/grel.c b/glib/deprecated/grel.c
index fdf909a3d..a8b2c4d1c 100644
--- a/glib/deprecated/grel.c
+++ b/glib/deprecated/grel.c
@@ -29,6 +29,9 @@
 
 #include "config.h"
 
+/* we know we are deprecated here, no need for warnings */
+#define GLIB_DISABLE_DEPRECATION_WARNINGS
+
 #include "grel.h"
 
 #include <glib/gmessages.h>
diff --git a/glib/deprecated/gthread-deprecated.c b/glib/deprecated/gthread-deprecated.c
index 861a59989..95e6d8e1b 100644
--- a/glib/deprecated/gthread-deprecated.c
+++ b/glib/deprecated/gthread-deprecated.c
@@ -23,13 +23,8 @@
 
 #include "config.h"
 
-#include "gmacros.h"
-
 /* we know we are deprecated here, no need for warnings */
-#undef G_GNUC_DEPRECATED
-#define G_GNUC_DEPRECATED
-#undef G_GNUC_DEPRECATED_FOR
-#define G_GNUC_DEPRECATED_FOR(f)
+#define GLIB_DISABLE_DEPRECATION_WARNINGS
 
 #include "gmessages.h"
 #include "gslice.h"