[gtk/antoniof-main-patch-39484] gtkbitset: Define autocleanup function

[António Fernandes <antoniof src gnome org>]

commit 1a64eeb88ed69b38c36cb8b143b05a0eaf5c461c
Author: António Fernandes <antoniojpfernandes gmail com>
Date:   Tue Jan 25 21:33:31 2022 +0000

    gtkbitset: Define autocleanup function

 gtk/gtkbitset.h | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gtk/gtkbitset.h b/gtk/gtkbitset.h
index 9ec5d15bc2..094ab0a72b 100644
--- a/gtk/gtkbitset.h
+++ b/gtk/gtkbitset.h
@@ -38,6 +38,7 @@ GDK_AVAILABLE_IN_ALL
 GtkBitset *             gtk_bitset_ref                          (GtkBitset              *self);
 GDK_AVAILABLE_IN_ALL
 void                    gtk_bitset_unref                        (GtkBitset              *self);
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(GtkBitset, gtk_bitset_unref)
 
 GDK_AVAILABLE_IN_ALL
 gboolean                gtk_bitset_contains                     (const GtkBitset        *self,