diff --git a/Gir.toml b/Gir.toml
index 9866a463f8..201f95def0 100644
--- a/Gir.toml
+++ b/Gir.toml
@@ -480,6 +480,13 @@ status = "generate"
     name = "baseline-position"
     version = "3.10"
 
+[[object]]
+name = "Gtk.Buildable"
+status = "generate"
+    [[object.function]]
+    pattern = "[gs]et_name"
+    ignore = true
+
 [[object]]
 name = "Gtk.CellArea"
 status = "generate"
diff --git a/gir b/gir
index 0409d73831..e912ccfb38 160000
--- a/gir
+++ b/gir
@@ -1 +1 @@
-Subproject commit 0409d738312d7704e727e8e729b0b65b34bfe5ff
+Subproject commit e912ccfb384458bfbd52b91e6be1e36273f46b59
diff --git a/src/auto/about_dialog.rs b/src/auto/about_dialog.rs
index 6dd0c0a460..3c49a120a1 100644
--- a/src/auto/about_dialog.rs
+++ b/src/auto/about_dialog.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Dialog;
 use License;
@@ -25,7 +26,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct AboutDialog(Object<ffi::GtkAboutDialog, ffi::GtkAboutDialogClass>): Dialog, Window, Bin, Container, Widget;
+    pub struct AboutDialog(Object<ffi::GtkAboutDialog, ffi::GtkAboutDialogClass>): Dialog, Window, Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_about_dialog_get_type(),
diff --git a/src/auto/accel_group.rs b/src/auto/accel_group.rs
index 3a14dffef9..ae6559027d 100644
--- a/src/auto/accel_group.rs
+++ b/src/auto/accel_group.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ffi;
diff --git a/src/auto/action_bar.rs b/src/auto/action_bar.rs
index 76a4bc95e9..83cdf4cdf5 100644
--- a/src/auto/action_bar.rs
+++ b/src/auto/action_bar.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use PackType;
 use Widget;
@@ -17,7 +18,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ActionBar(Object<ffi::GtkActionBar, ffi::GtkActionBarClass>): Bin, Container, Widget;
+    pub struct ActionBar(Object<ffi::GtkActionBar, ffi::GtkActionBarClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_action_bar_get_type(),
diff --git a/src/auto/actionable.rs b/src/auto/actionable.rs
index d47f114e11..082e8e08e9 100644
--- a/src/auto/actionable.rs
+++ b/src/auto/actionable.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Widget;
 use ffi;
 use glib;
@@ -17,7 +18,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Actionable(Object<ffi::GtkActionable, ffi::GtkActionableInterface>): Widget;
+    pub struct Actionable(Object<ffi::GtkActionable, ffi::GtkActionableInterface>): Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_actionable_get_type(),
diff --git a/src/auto/adjustment.rs b/src/auto/adjustment.rs
index 9683e5f36e..6dd395e6fd 100644
--- a/src/auto/adjustment.rs
+++ b/src/auto/adjustment.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ffi;
diff --git a/src/auto/alignment.rs b/src/auto/alignment.rs
index f352a3d713..2148af95e2 100644
--- a/src/auto/alignment.rs
+++ b/src/auto/alignment.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Widget;
 use ffi;
@@ -20,7 +21,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Alignment(Object<ffi::GtkAlignment, ffi::GtkAlignmentClass>): Bin, Container, Widget;
+    pub struct Alignment(Object<ffi::GtkAlignment, ffi::GtkAlignmentClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_alignment_get_type(),
diff --git a/src/auto/app_chooser_dialog.rs b/src/auto/app_chooser_dialog.rs
index 4d68ed5f4d..c1fb0ab933 100644
--- a/src/auto/app_chooser_dialog.rs
+++ b/src/auto/app_chooser_dialog.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use AppChooser;
 use Bin;
+use Buildable;
 use Container;
 use Dialog;
 use DialogFlags;
@@ -23,7 +24,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct AppChooserDialog(Object<ffi::GtkAppChooserDialog, ffi::GtkAppChooserDialogClass>): Dialog, Window, Bin, Container, Widget, AppChooser;
+    pub struct AppChooserDialog(Object<ffi::GtkAppChooserDialog, ffi::GtkAppChooserDialogClass>): Dialog, Window, Bin, Container, Widget, Buildable, AppChooser;
 
     match fn {
         get_type => || ffi::gtk_app_chooser_dialog_get_type(),
diff --git a/src/auto/app_chooser_widget.rs b/src/auto/app_chooser_widget.rs
index dad4c3eff3..3f4989ca56 100644
--- a/src/auto/app_chooser_widget.rs
+++ b/src/auto/app_chooser_widget.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use AppChooser;
 use Box;
+use Buildable;
 use Container;
 use Menu;
 use Orientable;
@@ -24,7 +25,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct AppChooserWidget(Object<ffi::GtkAppChooserWidget, ffi::GtkAppChooserWidgetClass>): Box, Container, Widget, Orientable, AppChooser;
+    pub struct AppChooserWidget(Object<ffi::GtkAppChooserWidget, ffi::GtkAppChooserWidgetClass>): Box, Container, Widget, Buildable, Orientable, AppChooser;
 
     match fn {
         get_type => || ffi::gtk_app_chooser_widget_get_type(),
diff --git a/src/auto/application.rs b/src/auto/application.rs
index eb95f26251..85382d908b 100644
--- a/src/auto/application.rs
+++ b/src/auto/application.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ApplicationInhibitFlags;
diff --git a/src/auto/application_window.rs b/src/auto/application_window.rs
index 9b4c896b24..78ba49ec4e 100644
--- a/src/auto/application_window.rs
+++ b/src/auto/application_window.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Application;
 use Bin;
+use Buildable;
 use Container;
 #[cfg(any(feature = "v3_20", feature = "dox"))]
 use ShortcutsWindow;
@@ -30,6 +31,7 @@ glib_wrapper! {
         Bin,
         Container,
         Widget,
+        Buildable,
         gio::ActionGroup => gio_ffi::GActionGroup,
         gio::ActionMap => gio_ffi::GActionMap,
     ];
diff --git a/src/auto/arrow.rs b/src/auto/arrow.rs
index 267ed2a358..b44f63f02a 100644
--- a/src/auto/arrow.rs
+++ b/src/auto/arrow.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ArrowType;
+use Buildable;
 use Misc;
 use ShadowType;
 use Widget;
@@ -21,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Arrow(Object<ffi::GtkArrow, ffi::GtkArrowClass>): Misc, Widget;
+    pub struct Arrow(Object<ffi::GtkArrow, ffi::GtkArrowClass>): Misc, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_arrow_get_type(),
diff --git a/src/auto/aspect_frame.rs b/src/auto/aspect_frame.rs
index d09f9900ae..de3b74bc03 100644
--- a/src/auto/aspect_frame.rs
+++ b/src/auto/aspect_frame.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Frame;
 use Widget;
@@ -21,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct AspectFrame(Object<ffi::GtkAspectFrame, ffi::GtkAspectFrameClass>): Frame, Bin, Container, Widget;
+    pub struct AspectFrame(Object<ffi::GtkAspectFrame, ffi::GtkAspectFrameClass>): Frame, Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_aspect_frame_get_type(),
diff --git a/src/auto/assistant.rs b/src/auto/assistant.rs
index 047639b9a8..22574c4ded 100644
--- a/src/auto/assistant.rs
+++ b/src/auto/assistant.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use AssistantPageType;
 use Bin;
+use Buildable;
 use Container;
 use Widget;
 use Window;
@@ -22,7 +23,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Assistant(Object<ffi::GtkAssistant, ffi::GtkAssistantClass>): Window, Bin, Container, Widget;
+    pub struct Assistant(Object<ffi::GtkAssistant, ffi::GtkAssistantClass>): Window, Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_assistant_get_type(),
diff --git a/src/auto/bin.rs b/src/auto/bin.rs
index 879da8550d..23c93086f1 100644
--- a/src/auto/bin.rs
+++ b/src/auto/bin.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Container;
 use Widget;
 use ffi;
@@ -12,7 +13,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Bin(Object<ffi::GtkBin, ffi::GtkBinClass>): Container, Widget;
+    pub struct Bin(Object<ffi::GtkBin, ffi::GtkBinClass>): Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_bin_get_type(),
diff --git a/src/auto/box_.rs b/src/auto/box_.rs
index 27d02581c4..ff1d9f473f 100644
--- a/src/auto/box_.rs
+++ b/src/auto/box_.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 #[cfg(any(feature = "v3_10", feature = "dox"))]
 use BaselinePosition;
+use Buildable;
 use Container;
 use Orientable;
 use Orientation;
@@ -24,7 +25,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Box(Object<ffi::GtkBox, ffi::GtkBoxClass>): Container, Widget, Orientable;
+    pub struct Box(Object<ffi::GtkBox, ffi::GtkBoxClass>): Container, Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_box_get_type(),
diff --git a/src/auto/buildable.rs b/src/auto/buildable.rs
new file mode 100644
index 0000000000..11e8005eef
--- /dev/null
+++ b/src/auto/buildable.rs
@@ -0,0 +1,84 @@
+// This file was generated by gir (e912ccf) from gir-files (469db10)
+// DO NOT EDIT
+
+use Builder;
+use ffi;
+use glib;
+use glib::object::IsA;
+use glib::translate::*;
+use glib_ffi;
+use gobject_ffi;
+use std::mem;
+use std::ptr;
+
+glib_wrapper! {
+    pub struct Buildable(Object<ffi::GtkBuildable, ffi::GtkBuildableIface>);
+
+    match fn {
+        get_type => || ffi::gtk_buildable_get_type(),
+    }
+}
+
+pub trait BuildableExt {
+    fn add_child<'a, P: IsA<glib::Object>, Q: Into<Option<&'a str>>>(&self, builder: &Builder, child: &P, type_: Q);
+
+    fn construct_child(&self, builder: &Builder, name: &str) -> Option<glib::Object>;
+
+    //fn custom_finished<'a, P: IsA<glib::Object> + 'a, Q: Into<Option<&'a P>>, R: Into<Option</*Unimplemented*/Fundamental: Pointer>>>(&self, builder: &Builder, child: Q, tagname: &str, data: R);
+
+    //fn custom_tag_end<'a, P: IsA<glib::Object> + 'a, Q: Into<Option<&'a P>>, R: Into<Option</*Unimplemented*/Fundamental: Pointer>>>(&self, builder: &Builder, child: Q, tagname: &str, data: R);
+
+    //fn custom_tag_start<'a, P: IsA<glib::Object> + 'a, Q: Into<Option<&'a P>>>(&self, builder: &Builder, child: Q, tagname: &str, parser: /*Ignored*/glib::MarkupParser, data: /*Unimplemented*/&mut Option<Fundamental: Pointer>) -> bool;
+
+    fn get_internal_child(&self, builder: &Builder, childname: &str) -> Option<glib::Object>;
+
+    fn parser_finished(&self, builder: &Builder);
+
+    fn set_buildable_property(&self, builder: &Builder, name: &str, value: &glib::Value);
+}
+
+impl<O: IsA<Buildable>> BuildableExt for O {
+    fn add_child<'a, P: IsA<glib::Object>, Q: Into<Option<&'a str>>>(&self, builder: &Builder, child: &P, type_: Q) {
+        let type_ = type_.into();
+        let type_ = type_.to_glib_none();
+        unsafe {
+            ffi::gtk_buildable_add_child(self.to_glib_none().0, builder.to_glib_none().0, child.to_glib_none().0, type_.0);
+        }
+    }
+
+    fn construct_child(&self, builder: &Builder, name: &str) -> Option<glib::Object> {
+        unsafe {
+            from_glib_full(ffi::gtk_buildable_construct_child(self.to_glib_none().0, builder.to_glib_none().0, name.to_glib_none().0))
+        }
+    }
+
+    //fn custom_finished<'a, P: IsA<glib::Object> + 'a, Q: Into<Option<&'a P>>, R: Into<Option</*Unimplemented*/Fundamental: Pointer>>>(&self, builder: &Builder, child: Q, tagname: &str, data: R) {
+    //    unsafe { TODO: call ffi::gtk_buildable_custom_finished() }
+    //}
+
+    //fn custom_tag_end<'a, P: IsA<glib::Object> + 'a, Q: Into<Option<&'a P>>, R: Into<Option</*Unimplemented*/Fundamental: Pointer>>>(&self, builder: &Builder, child: Q, tagname: &str, data: R) {
+    //    unsafe { TODO: call ffi::gtk_buildable_custom_tag_end() }
+    //}
+
+    //fn custom_tag_start<'a, P: IsA<glib::Object> + 'a, Q: Into<Option<&'a P>>>(&self, builder: &Builder, child: Q, tagname: &str, parser: /*Ignored*/glib::MarkupParser, data: /*Unimplemented*/&mut Option<Fundamental: Pointer>) -> bool {
+    //    unsafe { TODO: call ffi::gtk_buildable_custom_tag_start() }
+    //}
+
+    fn get_internal_child(&self, builder: &Builder, childname: &str) -> Option<glib::Object> {
+        unsafe {
+            from_glib_none(ffi::gtk_buildable_get_internal_child(self.to_glib_none().0, builder.to_glib_none().0, childname.to_glib_none().0))
+        }
+    }
+
+    fn parser_finished(&self, builder: &Builder) {
+        unsafe {
+            ffi::gtk_buildable_parser_finished(self.to_glib_none().0, builder.to_glib_none().0);
+        }
+    }
+
+    fn set_buildable_property(&self, builder: &Builder, name: &str, value: &glib::Value) {
+        unsafe {
+            ffi::gtk_buildable_set_buildable_property(self.to_glib_none().0, builder.to_glib_none().0, name.to_glib_none().0, value.to_glib_none().0);
+        }
+    }
+}
diff --git a/src/auto/builder.rs b/src/auto/builder.rs
index 4c2653c2a7..7ca6fd8fc8 100644
--- a/src/auto/builder.rs
+++ b/src/auto/builder.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 #[cfg(any(feature = "v3_10", feature = "dox"))]
diff --git a/src/auto/button.rs b/src/auto/button.rs
index b0b97adcb4..9608b2f177 100644
--- a/src/auto/button.rs
+++ b/src/auto/button.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Container;
 use PositionType;
 use ReliefStyle;
@@ -24,7 +25,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Button(Object<ffi::GtkButton, ffi::GtkButtonClass>): Bin, Container, Widget, Actionable;
+    pub struct Button(Object<ffi::GtkButton, ffi::GtkButtonClass>): Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_button_get_type(),
diff --git a/src/auto/button_box.rs b/src/auto/button_box.rs
index 1c92355b64..4195b90fd6 100644
--- a/src/auto/button_box.rs
+++ b/src/auto/button_box.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Box;
+use Buildable;
 use ButtonBoxStyle;
 use Container;
 use Orientable;
@@ -23,7 +24,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ButtonBox(Object<ffi::GtkButtonBox, ffi::GtkButtonBoxClass>): Box, Container, Widget, Orientable;
+    pub struct ButtonBox(Object<ffi::GtkButtonBox, ffi::GtkButtonBoxClass>): Box, Container, Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_button_box_get_type(),
diff --git a/src/auto/calendar.rs b/src/auto/calendar.rs
index a60caa2f82..4bd657e3a0 100644
--- a/src/auto/calendar.rs
+++ b/src/auto/calendar.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use CalendarDisplayOptions;
 use Widget;
 use ffi;
@@ -19,7 +20,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Calendar(Object<ffi::GtkCalendar, ffi::GtkCalendarClass>): Widget;
+    pub struct Calendar(Object<ffi::GtkCalendar, ffi::GtkCalendarClass>): Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_calendar_get_type(),
diff --git a/src/auto/cell_area.rs b/src/auto/cell_area.rs
index 0e901b4622..b68f35a026 100644
--- a/src/auto/cell_area.rs
+++ b/src/auto/cell_area.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use CellAreaContext;
 use CellEditable;
 use CellLayout;
@@ -32,7 +33,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct CellArea(Object<ffi::GtkCellArea, ffi::GtkCellAreaClass>): CellLayout;
+    pub struct CellArea(Object<ffi::GtkCellArea, ffi::GtkCellAreaClass>): Buildable, CellLayout;
 
     match fn {
         get_type => || ffi::gtk_cell_area_get_type(),
diff --git a/src/auto/cell_area_box.rs b/src/auto/cell_area_box.rs
index 591f419d2e..3231c0f074 100644
--- a/src/auto/cell_area_box.rs
+++ b/src/auto/cell_area_box.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use CellArea;
 use CellLayout;
 use CellRenderer;
@@ -20,7 +21,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct CellAreaBox(Object<ffi::GtkCellAreaBox, ffi::GtkCellAreaBoxClass>): CellArea, CellLayout, Orientable;
+    pub struct CellAreaBox(Object<ffi::GtkCellAreaBox, ffi::GtkCellAreaBoxClass>): CellArea, Buildable, CellLayout, Orientable;
 
     match fn {
         get_type => || ffi::gtk_cell_area_box_get_type(),
diff --git a/src/auto/cell_area_context.rs b/src/auto/cell_area_context.rs
index 0a6c83d3b5..5081601492 100644
--- a/src/auto/cell_area_context.rs
+++ b/src/auto/cell_area_context.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CellArea;
diff --git a/src/auto/cell_editable.rs b/src/auto/cell_editable.rs
index c11448448c..cfe415129f 100644
--- a/src/auto/cell_editable.rs
+++ b/src/auto/cell_editable.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Widget;
 use ffi;
 use gdk;
@@ -19,7 +20,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct CellEditable(Object<ffi::GtkCellEditable, ffi::GtkCellEditableIface>): Widget;
+    pub struct CellEditable(Object<ffi::GtkCellEditable, ffi::GtkCellEditableIface>): Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_cell_editable_get_type(),
diff --git a/src/auto/cell_layout.rs b/src/auto/cell_layout.rs
index f81c52c7fa..f57599f63f 100644
--- a/src/auto/cell_layout.rs
+++ b/src/auto/cell_layout.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CellArea;
diff --git a/src/auto/cell_renderer.rs b/src/auto/cell_renderer.rs
index b78207ecc0..519ee94526 100644
--- a/src/auto/cell_renderer.rs
+++ b/src/auto/cell_renderer.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CellEditable;
diff --git a/src/auto/cell_renderer_accel.rs b/src/auto/cell_renderer_accel.rs
index 32eddf16b9..6d4034fa2d 100644
--- a/src/auto/cell_renderer_accel.rs
+++ b/src/auto/cell_renderer_accel.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CellRenderer;
diff --git a/src/auto/cell_renderer_combo.rs b/src/auto/cell_renderer_combo.rs
index 74f58520eb..e42848a0ee 100644
--- a/src/auto/cell_renderer_combo.rs
+++ b/src/auto/cell_renderer_combo.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CellRenderer;
diff --git a/src/auto/cell_renderer_pixbuf.rs b/src/auto/cell_renderer_pixbuf.rs
index 5bbd333a9b..acac42daa6 100644
--- a/src/auto/cell_renderer_pixbuf.rs
+++ b/src/auto/cell_renderer_pixbuf.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CellRenderer;
diff --git a/src/auto/cell_renderer_progress.rs b/src/auto/cell_renderer_progress.rs
index a1b5894678..a3fed8cec1 100644
--- a/src/auto/cell_renderer_progress.rs
+++ b/src/auto/cell_renderer_progress.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CellRenderer;
diff --git a/src/auto/cell_renderer_spin.rs b/src/auto/cell_renderer_spin.rs
index f02152ac6a..3c0d6b9762 100644
--- a/src/auto/cell_renderer_spin.rs
+++ b/src/auto/cell_renderer_spin.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Adjustment;
diff --git a/src/auto/cell_renderer_spinner.rs b/src/auto/cell_renderer_spinner.rs
index a414435bae..9a25c38c2a 100644
--- a/src/auto/cell_renderer_spinner.rs
+++ b/src/auto/cell_renderer_spinner.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CellRenderer;
diff --git a/src/auto/cell_renderer_text.rs b/src/auto/cell_renderer_text.rs
index 3bee3e9521..23e0718c96 100644
--- a/src/auto/cell_renderer_text.rs
+++ b/src/auto/cell_renderer_text.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CellRenderer;
diff --git a/src/auto/cell_renderer_toggle.rs b/src/auto/cell_renderer_toggle.rs
index d21ec8ba50..9a7660d845 100644
--- a/src/auto/cell_renderer_toggle.rs
+++ b/src/auto/cell_renderer_toggle.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CellRenderer;
diff --git a/src/auto/check_button.rs b/src/auto/check_button.rs
index 871a153795..5a4749361d 100644
--- a/src/auto/check_button.rs
+++ b/src/auto/check_button.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Button;
 use Container;
 use ToggleButton;
@@ -16,7 +17,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct CheckButton(Object<ffi::GtkCheckButton, ffi::GtkCheckButtonClass>): ToggleButton, Button, Bin, Container, Widget, Actionable;
+    pub struct CheckButton(Object<ffi::GtkCheckButton, ffi::GtkCheckButtonClass>): ToggleButton, Button, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_check_button_get_type(),
diff --git a/src/auto/check_menu_item.rs b/src/auto/check_menu_item.rs
index 2029b1cb4a..7da3ba267a 100644
--- a/src/auto/check_menu_item.rs
+++ b/src/auto/check_menu_item.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Container;
 use MenuItem;
 use Widget;
@@ -21,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct CheckMenuItem(Object<ffi::GtkCheckMenuItem, ffi::GtkCheckMenuItemClass>): MenuItem, Bin, Container, Widget, Actionable;
+    pub struct CheckMenuItem(Object<ffi::GtkCheckMenuItem, ffi::GtkCheckMenuItemClass>): MenuItem, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_check_menu_item_get_type(),
diff --git a/src/auto/clipboard.rs b/src/auto/clipboard.rs
index e6e32dc1ed..f8aee8af2f 100644
--- a/src/auto/clipboard.rs
+++ b/src/auto/clipboard.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use SelectionData;
diff --git a/src/auto/color_button.rs b/src/auto/color_button.rs
index d1df105def..d0295e1c47 100644
--- a/src/auto/color_button.rs
+++ b/src/auto/color_button.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Button;
 use ColorChooser;
 use Container;
@@ -24,7 +25,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ColorButton(Object<ffi::GtkColorButton, ffi::GtkColorButtonClass>): Button, Bin, Container, Widget, Actionable, ColorChooser;
+    pub struct ColorButton(Object<ffi::GtkColorButton, ffi::GtkColorButtonClass>): Button, Bin, Container, Widget, Buildable, Actionable, ColorChooser;
 
     match fn {
         get_type => || ffi::gtk_color_button_get_type(),
diff --git a/src/auto/color_chooser.rs b/src/auto/color_chooser.rs
index e96ae3d52e..88ad3a0a75 100644
--- a/src/auto/color_chooser.rs
+++ b/src/auto/color_chooser.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ffi;
diff --git a/src/auto/color_chooser_dialog.rs b/src/auto/color_chooser_dialog.rs
index 8d14221708..1ed6d8cd12 100644
--- a/src/auto/color_chooser_dialog.rs
+++ b/src/auto/color_chooser_dialog.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use ColorChooser;
 use Container;
 use Dialog;
@@ -23,7 +24,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ColorChooserDialog(Object<ffi::GtkColorChooserDialog, ffi::GtkColorChooserDialogClass>): Dialog, Window, Bin, Container, Widget, ColorChooser;
+    pub struct ColorChooserDialog(Object<ffi::GtkColorChooserDialog, ffi::GtkColorChooserDialogClass>): Dialog, Window, Bin, Container, Widget, Buildable, ColorChooser;
 
     match fn {
         get_type => || ffi::gtk_color_chooser_dialog_get_type(),
diff --git a/src/auto/color_chooser_widget.rs b/src/auto/color_chooser_widget.rs
index c39fd5cd01..29e5bc85d9 100644
--- a/src/auto/color_chooser_widget.rs
+++ b/src/auto/color_chooser_widget.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Box;
+use Buildable;
 use ColorChooser;
 use Container;
 use Orientable;
@@ -22,7 +23,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ColorChooserWidget(Object<ffi::GtkColorChooserWidget, ffi::GtkColorChooserWidgetClass>): Box, Container, Widget, Orientable, ColorChooser;
+    pub struct ColorChooserWidget(Object<ffi::GtkColorChooserWidget, ffi::GtkColorChooserWidgetClass>): Box, Container, Widget, Buildable, Orientable, ColorChooser;
 
     match fn {
         get_type => || ffi::gtk_color_chooser_widget_get_type(),
diff --git a/src/auto/combo_box.rs b/src/auto/combo_box.rs
index 0c0e876865..26252a8e1b 100644
--- a/src/auto/combo_box.rs
+++ b/src/auto/combo_box.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use CellArea;
 use CellEditable;
 use CellLayout;
@@ -29,7 +30,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ComboBox(Object<ffi::GtkComboBox, ffi::GtkComboBoxClass>): Bin, Container, Widget, CellEditable, CellLayout;
+    pub struct ComboBox(Object<ffi::GtkComboBox, ffi::GtkComboBoxClass>): Bin, Container, Widget, Buildable, CellEditable, CellLayout;
 
     match fn {
         get_type => || ffi::gtk_combo_box_get_type(),
diff --git a/src/auto/combo_box_text.rs b/src/auto/combo_box_text.rs
index 47df49360a..ea488e7758 100644
--- a/src/auto/combo_box_text.rs
+++ b/src/auto/combo_box_text.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use CellEditable;
 use CellLayout;
 use ComboBox;
@@ -17,7 +18,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ComboBoxText(Object<ffi::GtkComboBoxText, ffi::GtkComboBoxTextClass>): ComboBox, Bin, Container, Widget, CellEditable, CellLayout;
+    pub struct ComboBoxText(Object<ffi::GtkComboBoxText, ffi::GtkComboBoxTextClass>): ComboBox, Bin, Container, Widget, Buildable, CellEditable, CellLayout;
 
     match fn {
         get_type => || ffi::gtk_combo_box_text_get_type(),
diff --git a/src/auto/container.rs b/src/auto/container.rs
index 9252f19b7a..f76936dd62 100644
--- a/src/auto/container.rs
+++ b/src/auto/container.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Adjustment;
+use Buildable;
 use ResizeMode;
 use Widget;
 use cairo;
@@ -21,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Container(Object<ffi::GtkContainer, ffi::GtkContainerClass>): Widget;
+    pub struct Container(Object<ffi::GtkContainer, ffi::GtkContainerClass>): Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_container_get_type(),
diff --git a/src/auto/css_provider.rs b/src/auto/css_provider.rs
index 2505476bcc..b7ed25e4b2 100644
--- a/src/auto/css_provider.rs
+++ b/src/auto/css_provider.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CssSection;
diff --git a/src/auto/css_section.rs b/src/auto/css_section.rs
index b2567dde52..137feba049 100644
--- a/src/auto/css_section.rs
+++ b/src/auto/css_section.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CssSectionType;
diff --git a/src/auto/dialog.rs b/src/auto/dialog.rs
index 66ce6674b5..90707f276f 100644
--- a/src/auto/dialog.rs
+++ b/src/auto/dialog.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
 use Box;
+use Buildable;
 use Container;
 use Widget;
 use Window;
@@ -24,7 +25,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Dialog(Object<ffi::GtkDialog, ffi::GtkDialogClass>): Window, Bin, Container, Widget;
+    pub struct Dialog(Object<ffi::GtkDialog, ffi::GtkDialogClass>): Window, Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_dialog_get_type(),
diff --git a/src/auto/drawing_area.rs b/src/auto/drawing_area.rs
index a1b7119f7e..3193f5d9c6 100644
--- a/src/auto/drawing_area.rs
+++ b/src/auto/drawing_area.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Widget;
 use ffi;
 use glib::object::Downcast;
@@ -11,7 +12,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct DrawingArea(Object<ffi::GtkDrawingArea, ffi::GtkDrawingAreaClass>): Widget;
+    pub struct DrawingArea(Object<ffi::GtkDrawingArea, ffi::GtkDrawingAreaClass>): Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_drawing_area_get_type(),
diff --git a/src/auto/editable.rs b/src/auto/editable.rs
index dba2d64db9..2d8de35118 100644
--- a/src/auto/editable.rs
+++ b/src/auto/editable.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ffi;
diff --git a/src/auto/entry.rs b/src/auto/entry.rs
index 552656c24f..544fe5b53a 100644
--- a/src/auto/entry.rs
+++ b/src/auto/entry.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Adjustment;
+use Buildable;
 use CellEditable;
 use DeleteType;
 use Editable;
@@ -39,7 +40,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Entry(Object<ffi::GtkEntry, ffi::GtkEntryClass>): Widget, CellEditable, Editable;
+    pub struct Entry(Object<ffi::GtkEntry, ffi::GtkEntryClass>): Widget, Buildable, CellEditable, Editable;
 
     match fn {
         get_type => || ffi::gtk_entry_get_type(),
diff --git a/src/auto/entry_completion.rs b/src/auto/entry_completion.rs
index fc19abd158..c9120dc8fe 100644
--- a/src/auto/entry_completion.rs
+++ b/src/auto/entry_completion.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use CellArea;
 use CellLayout;
 use TreeIter;
@@ -24,7 +25,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct EntryCompletion(Object<ffi::GtkEntryCompletion, ffi::GtkEntryCompletionClass>): CellLayout;
+    pub struct EntryCompletion(Object<ffi::GtkEntryCompletion, ffi::GtkEntryCompletionClass>): Buildable, CellLayout;
 
     match fn {
         get_type => || ffi::gtk_entry_completion_get_type(),
diff --git a/src/auto/enums.rs b/src/auto/enums.rs
index bc3d0cde17..568148319f 100644
--- a/src/auto/enums.rs
+++ b/src/auto/enums.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ffi;
diff --git a/src/auto/event_box.rs b/src/auto/event_box.rs
index 168ee8ee30..b2c33e1115 100644
--- a/src/auto/event_box.rs
+++ b/src/auto/event_box.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Widget;
 use ffi;
@@ -19,7 +20,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct EventBox(Object<ffi::GtkEventBox, ffi::GtkEventBoxClass>): Bin, Container, Widget;
+    pub struct EventBox(Object<ffi::GtkEventBox, ffi::GtkEventBoxClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_event_box_get_type(),
diff --git a/src/auto/event_controller.rs b/src/auto/event_controller.rs
index f508964d38..e1ad1760d6 100644
--- a/src/auto/event_controller.rs
+++ b/src/auto/event_controller.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 #[cfg(any(feature = "v3_14", feature = "dox"))]
diff --git a/src/auto/expander.rs b/src/auto/expander.rs
index 7c3426c5ab..a6e4a35ae0 100644
--- a/src/auto/expander.rs
+++ b/src/auto/expander.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Widget;
 use ffi;
@@ -19,7 +20,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Expander(Object<ffi::GtkExpander, ffi::GtkExpanderClass>): Bin, Container, Widget;
+    pub struct Expander(Object<ffi::GtkExpander, ffi::GtkExpanderClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_expander_get_type(),
diff --git a/src/auto/file_chooser.rs b/src/auto/file_chooser.rs
index 7ae0a210ef..7572a33381 100644
--- a/src/auto/file_chooser.rs
+++ b/src/auto/file_chooser.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Error;
diff --git a/src/auto/file_chooser_button.rs b/src/auto/file_chooser_button.rs
index 2305577c99..30ce91e723 100644
--- a/src/auto/file_chooser_button.rs
+++ b/src/auto/file_chooser_button.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Box;
+use Buildable;
 use Container;
 use Dialog;
 use FileChooser;
@@ -23,7 +24,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct FileChooserButton(Object<ffi::GtkFileChooserButton, ffi::GtkFileChooserButtonClass>): Box, Container, Widget, Orientable, FileChooser;
+    pub struct FileChooserButton(Object<ffi::GtkFileChooserButton, ffi::GtkFileChooserButtonClass>): Box, Container, Widget, Buildable, Orientable, FileChooser;
 
     match fn {
         get_type => || ffi::gtk_file_chooser_button_get_type(),
diff --git a/src/auto/file_chooser_dialog.rs b/src/auto/file_chooser_dialog.rs
index 9a5fe0cd28..665996e290 100644
--- a/src/auto/file_chooser_dialog.rs
+++ b/src/auto/file_chooser_dialog.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Dialog;
 use FileChooser;
@@ -15,7 +16,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct FileChooserDialog(Object<ffi::GtkFileChooserDialog, ffi::GtkFileChooserDialogClass>): Dialog, Window, Bin, Container, Widget, FileChooser;
+    pub struct FileChooserDialog(Object<ffi::GtkFileChooserDialog, ffi::GtkFileChooserDialogClass>): Dialog, Window, Bin, Container, Widget, Buildable, FileChooser;
 
     match fn {
         get_type => || ffi::gtk_file_chooser_dialog_get_type(),
diff --git a/src/auto/file_chooser_widget.rs b/src/auto/file_chooser_widget.rs
index 6f4d9e1897..0689bdd965 100644
--- a/src/auto/file_chooser_widget.rs
+++ b/src/auto/file_chooser_widget.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Box;
+use Buildable;
 use Container;
 use FileChooser;
 use FileChooserAction;
@@ -24,7 +25,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct FileChooserWidget(Object<ffi::GtkFileChooserWidget, ffi::GtkFileChooserWidgetClass>): Box, Container, Widget, Orientable, FileChooser;
+    pub struct FileChooserWidget(Object<ffi::GtkFileChooserWidget, ffi::GtkFileChooserWidgetClass>): Box, Container, Widget, Buildable, Orientable, FileChooser;
 
     match fn {
         get_type => || ffi::gtk_file_chooser_widget_get_type(),
diff --git a/src/auto/file_filter.rs b/src/auto/file_filter.rs
index 48f55cfb02..20212af42e 100644
--- a/src/auto/file_filter.rs
+++ b/src/auto/file_filter.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use FileFilterFlags;
 use ffi;
 #[cfg(any(feature = "v3_22", feature = "dox"))]
@@ -13,7 +14,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct FileFilter(Object<ffi::GtkFileFilter>);
+    pub struct FileFilter(Object<ffi::GtkFileFilter>): Buildable;
 
     match fn {
         get_type => || ffi::gtk_file_filter_get_type(),
diff --git a/src/auto/fixed.rs b/src/auto/fixed.rs
index f0bacc01c5..ace887903b 100644
--- a/src/auto/fixed.rs
+++ b/src/auto/fixed.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Container;
 use Widget;
 use ffi;
@@ -13,7 +14,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Fixed(Object<ffi::GtkFixed, ffi::GtkFixedClass>): Container, Widget;
+    pub struct Fixed(Object<ffi::GtkFixed, ffi::GtkFixedClass>): Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_fixed_get_type(),
diff --git a/src/auto/flags.rs b/src/auto/flags.rs
index ad93ebff80..ae52e9f62d 100644
--- a/src/auto/flags.rs
+++ b/src/auto/flags.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ffi;
diff --git a/src/auto/flow_box.rs b/src/auto/flow_box.rs
index 10194b771a..7802da992a 100644
--- a/src/auto/flow_box.rs
+++ b/src/auto/flow_box.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 #[cfg(any(feature = "v3_12", feature = "dox"))]
 use Adjustment;
+use Buildable;
 use Container;
 use FlowBoxChild;
 use MovementStep;
@@ -26,7 +27,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct FlowBox(Object<ffi::GtkFlowBox, ffi::GtkFlowBoxClass>): Container, Widget, Orientable;
+    pub struct FlowBox(Object<ffi::GtkFlowBox, ffi::GtkFlowBoxClass>): Container, Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_flow_box_get_type(),
diff --git a/src/auto/flow_box_child.rs b/src/auto/flow_box_child.rs
index 29d60aeefa..8a7606466c 100644
--- a/src/auto/flow_box_child.rs
+++ b/src/auto/flow_box_child.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Widget;
 use ffi;
@@ -19,7 +20,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct FlowBoxChild(Object<ffi::GtkFlowBoxChild, ffi::GtkFlowBoxChildClass>): Bin, Container, Widget;
+    pub struct FlowBoxChild(Object<ffi::GtkFlowBoxChild, ffi::GtkFlowBoxChildClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_flow_box_child_get_type(),
diff --git a/src/auto/font_button.rs b/src/auto/font_button.rs
index 3ab7238612..fe18203e16 100644
--- a/src/auto/font_button.rs
+++ b/src/auto/font_button.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Button;
 use Container;
 use FontChooser;
@@ -22,7 +23,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct FontButton(Object<ffi::GtkFontButton, ffi::GtkFontButtonClass>): Button, Bin, Container, Widget, Actionable, FontChooser;
+    pub struct FontButton(Object<ffi::GtkFontButton, ffi::GtkFontButtonClass>): Button, Bin, Container, Widget, Buildable, Actionable, FontChooser;
 
     match fn {
         get_type => || ffi::gtk_font_button_get_type(),
diff --git a/src/auto/font_chooser.rs b/src/auto/font_chooser.rs
index 23fd80a6dc..e88db4e48b 100644
--- a/src/auto/font_chooser.rs
+++ b/src/auto/font_chooser.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ffi;
diff --git a/src/auto/font_chooser_dialog.rs b/src/auto/font_chooser_dialog.rs
index 19e88d7513..38ac4a246a 100644
--- a/src/auto/font_chooser_dialog.rs
+++ b/src/auto/font_chooser_dialog.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Dialog;
 use FontChooser;
@@ -17,7 +18,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct FontChooserDialog(Object<ffi::GtkFontChooserDialog, ffi::GtkFontChooserDialogClass>): Dialog, Window, Bin, Container, Widget, FontChooser;
+    pub struct FontChooserDialog(Object<ffi::GtkFontChooserDialog, ffi::GtkFontChooserDialogClass>): Dialog, Window, Bin, Container, Widget, Buildable, FontChooser;
 
     match fn {
         get_type => || ffi::gtk_font_chooser_dialog_get_type(),
diff --git a/src/auto/font_chooser_widget.rs b/src/auto/font_chooser_widget.rs
index 5ab15a8706..3d273cc8eb 100644
--- a/src/auto/font_chooser_widget.rs
+++ b/src/auto/font_chooser_widget.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Box;
+use Buildable;
 use Container;
 use FontChooser;
 use Orientable;
@@ -15,7 +16,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct FontChooserWidget(Object<ffi::GtkFontChooserWidget, ffi::GtkFontChooserWidgetClass>): Box, Container, Widget, Orientable, FontChooser;
+    pub struct FontChooserWidget(Object<ffi::GtkFontChooserWidget, ffi::GtkFontChooserWidgetClass>): Box, Container, Widget, Buildable, Orientable, FontChooser;
 
     match fn {
         get_type => || ffi::gtk_font_chooser_widget_get_type(),
diff --git a/src/auto/frame.rs b/src/auto/frame.rs
index ad067be82b..3abfe209e8 100644
--- a/src/auto/frame.rs
+++ b/src/auto/frame.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use ShadowType;
 use Widget;
@@ -21,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Frame(Object<ffi::GtkFrame, ffi::GtkFrameClass>): Bin, Container, Widget;
+    pub struct Frame(Object<ffi::GtkFrame, ffi::GtkFrameClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_frame_get_type(),
diff --git a/src/auto/functions.rs b/src/auto/functions.rs
index 14927752c3..15688ae202 100644
--- a/src/auto/functions.rs
+++ b/src/auto/functions.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use AccelGroup;
diff --git a/src/auto/gesture.rs b/src/auto/gesture.rs
index 8d8f9b7e13..504a63b6f1 100644
--- a/src/auto/gesture.rs
+++ b/src/auto/gesture.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use EventController;
diff --git a/src/auto/gesture_drag.rs b/src/auto/gesture_drag.rs
index 6b48e9f4f2..087082bba7 100644
--- a/src/auto/gesture_drag.rs
+++ b/src/auto/gesture_drag.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use EventController;
diff --git a/src/auto/gesture_long_press.rs b/src/auto/gesture_long_press.rs
index f2d5444f50..090dc6c0be 100644
--- a/src/auto/gesture_long_press.rs
+++ b/src/auto/gesture_long_press.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use EventController;
diff --git a/src/auto/gesture_multi_press.rs b/src/auto/gesture_multi_press.rs
index b0f505014c..b2c6686819 100644
--- a/src/auto/gesture_multi_press.rs
+++ b/src/auto/gesture_multi_press.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use EventController;
diff --git a/src/auto/gesture_pan.rs b/src/auto/gesture_pan.rs
index 5bb127ee39..8ee698589f 100644
--- a/src/auto/gesture_pan.rs
+++ b/src/auto/gesture_pan.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use EventController;
diff --git a/src/auto/gesture_rotate.rs b/src/auto/gesture_rotate.rs
index a132cbd9f0..30edb1c4a5 100644
--- a/src/auto/gesture_rotate.rs
+++ b/src/auto/gesture_rotate.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use EventController;
diff --git a/src/auto/gesture_single.rs b/src/auto/gesture_single.rs
index 8b2f474bad..0409ee6678 100644
--- a/src/auto/gesture_single.rs
+++ b/src/auto/gesture_single.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use EventController;
diff --git a/src/auto/gesture_swipe.rs b/src/auto/gesture_swipe.rs
index fe8ec4d616..40c4a769c3 100644
--- a/src/auto/gesture_swipe.rs
+++ b/src/auto/gesture_swipe.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use EventController;
diff --git a/src/auto/gesture_zoom.rs b/src/auto/gesture_zoom.rs
index d3ba6d3ee1..6df06c836e 100644
--- a/src/auto/gesture_zoom.rs
+++ b/src/auto/gesture_zoom.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use EventController;
diff --git a/src/auto/gl_area.rs b/src/auto/gl_area.rs
index 0f9aa839c6..0fc52825a5 100644
--- a/src/auto/gl_area.rs
+++ b/src/auto/gl_area.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 #[cfg(any(feature = "v3_16", feature = "dox"))]
 use Error;
 use Widget;
@@ -31,7 +32,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct GLArea(Object<ffi::GtkGLArea, ffi::GtkGLAreaClass>): Widget;
+    pub struct GLArea(Object<ffi::GtkGLArea, ffi::GtkGLAreaClass>): Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_gl_area_get_type(),
diff --git a/src/auto/grid.rs b/src/auto/grid.rs
index c4907e5e3b..e3b5307938 100644
--- a/src/auto/grid.rs
+++ b/src/auto/grid.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 #[cfg(any(feature = "v3_10", feature = "dox"))]
 use BaselinePosition;
+use Buildable;
 use Container;
 use Orientable;
 use PositionType;
@@ -23,7 +24,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Grid(Object<ffi::GtkGrid, ffi::GtkGridClass>): Container, Widget, Orientable;
+    pub struct Grid(Object<ffi::GtkGrid, ffi::GtkGridClass>): Container, Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_grid_get_type(),
diff --git a/src/auto/header_bar.rs b/src/auto/header_bar.rs
index d0c6fa5a2f..b198f3eea0 100644
--- a/src/auto/header_bar.rs
+++ b/src/auto/header_bar.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Container;
 use PackType;
 use Widget;
@@ -20,7 +21,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct HeaderBar(Object<ffi::GtkHeaderBar, ffi::GtkHeaderBarClass>): Container, Widget;
+    pub struct HeaderBar(Object<ffi::GtkHeaderBar, ffi::GtkHeaderBarClass>): Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_header_bar_get_type(),
diff --git a/src/auto/i_m_context.rs b/src/auto/i_m_context.rs
index 549aec4e3a..7702d44aa5 100644
--- a/src/auto/i_m_context.rs
+++ b/src/auto/i_m_context.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 #[cfg(any(feature = "v3_6", feature = "dox"))]
diff --git a/src/auto/i_m_multicontext.rs b/src/auto/i_m_multicontext.rs
index 7bb780d5a3..32210b8672 100644
--- a/src/auto/i_m_multicontext.rs
+++ b/src/auto/i_m_multicontext.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use IMContext;
diff --git a/src/auto/icon_factory.rs b/src/auto/icon_factory.rs
index 36c69ab13b..b599676a9c 100644
--- a/src/auto/icon_factory.rs
+++ b/src/auto/icon_factory.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use IconSet;
 use ffi;
 use glib::object::IsA;
@@ -11,7 +12,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct IconFactory(Object<ffi::GtkIconFactory, ffi::GtkIconFactoryClass>);
+    pub struct IconFactory(Object<ffi::GtkIconFactory, ffi::GtkIconFactoryClass>): Buildable;
 
     match fn {
         get_type => || ffi::gtk_icon_factory_get_type(),
diff --git a/src/auto/icon_info.rs b/src/auto/icon_info.rs
index 6848048d14..459b5e48a9 100644
--- a/src/auto/icon_info.rs
+++ b/src/auto/icon_info.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Error;
diff --git a/src/auto/icon_set.rs b/src/auto/icon_set.rs
index c7354790ee..4e0e9ec17c 100644
--- a/src/auto/icon_set.rs
+++ b/src/auto/icon_set.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use IconSource;
diff --git a/src/auto/icon_source.rs b/src/auto/icon_source.rs
index 386f9d87e6..7d0ba60ab2 100644
--- a/src/auto/icon_source.rs
+++ b/src/auto/icon_source.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use StateType;
diff --git a/src/auto/icon_theme.rs b/src/auto/icon_theme.rs
index e928949aab..7441eb600d 100644
--- a/src/auto/icon_theme.rs
+++ b/src/auto/icon_theme.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Error;
diff --git a/src/auto/icon_view.rs b/src/auto/icon_view.rs
index c628c3c638..9cac263ee2 100644
--- a/src/auto/icon_view.rs
+++ b/src/auto/icon_view.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use CellArea;
 use CellLayout;
 use CellRenderer;
@@ -35,7 +36,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct IconView(Object<ffi::GtkIconView, ffi::GtkIconViewClass>): Container, Widget, CellLayout, Scrollable;
+    pub struct IconView(Object<ffi::GtkIconView, ffi::GtkIconViewClass>): Container, Widget, Buildable, CellLayout, Scrollable;
 
     match fn {
         get_type => || ffi::gtk_icon_view_get_type(),
diff --git a/src/auto/image.rs b/src/auto/image.rs
index 99457c06e6..1bbcbb13e9 100644
--- a/src/auto/image.rs
+++ b/src/auto/image.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use IconSet;
 use ImageType;
 use Misc;
@@ -26,7 +27,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Image(Object<ffi::GtkImage, ffi::GtkImageClass>): Misc, Widget;
+    pub struct Image(Object<ffi::GtkImage, ffi::GtkImageClass>): Misc, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_image_get_type(),
diff --git a/src/auto/image_menu_item.rs b/src/auto/image_menu_item.rs
index 98eed7c5c8..038633d3d1 100644
--- a/src/auto/image_menu_item.rs
+++ b/src/auto/image_menu_item.rs
@@ -1,9 +1,10 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use AccelGroup;
 use Actionable;
 use Bin;
+use Buildable;
 use Container;
 use MenuItem;
 use Widget;
@@ -22,7 +23,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ImageMenuItem(Object<ffi::GtkImageMenuItem, ffi::GtkImageMenuItemClass>): MenuItem, Bin, Container, Widget, Actionable;
+    pub struct ImageMenuItem(Object<ffi::GtkImageMenuItem, ffi::GtkImageMenuItemClass>): MenuItem, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_image_menu_item_get_type(),
diff --git a/src/auto/info_bar.rs b/src/auto/info_bar.rs
index 89f54031e0..90478a19bc 100644
--- a/src/auto/info_bar.rs
+++ b/src/auto/info_bar.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Box;
+use Buildable;
 use Button;
 use Container;
 use MessageType;
@@ -23,7 +24,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct InfoBar(Object<ffi::GtkInfoBar, ffi::GtkInfoBarClass>): Box, Container, Widget, Orientable;
+    pub struct InfoBar(Object<ffi::GtkInfoBar, ffi::GtkInfoBarClass>): Box, Container, Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_info_bar_get_type(),
diff --git a/src/auto/label.rs b/src/auto/label.rs
index b7f00f7514..22534c0865 100644
--- a/src/auto/label.rs
+++ b/src/auto/label.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Justification;
 use Menu;
 use Misc;
@@ -25,7 +26,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Label(Object<ffi::GtkLabel, ffi::GtkLabelClass>): Misc, Widget;
+    pub struct Label(Object<ffi::GtkLabel, ffi::GtkLabelClass>): Misc, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_label_get_type(),
diff --git a/src/auto/layout.rs b/src/auto/layout.rs
index 56f84a5634..1bc0171fc8 100644
--- a/src/auto/layout.rs
+++ b/src/auto/layout.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Adjustment;
+use Buildable;
 use Container;
 use Scrollable;
 use Widget;
@@ -22,7 +23,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Layout(Object<ffi::GtkLayout, ffi::GtkLayoutClass>): Container, Widget, Scrollable;
+    pub struct Layout(Object<ffi::GtkLayout, ffi::GtkLayoutClass>): Container, Widget, Buildable, Scrollable;
 
     match fn {
         get_type => || ffi::gtk_layout_get_type(),
diff --git a/src/auto/level_bar.rs b/src/auto/level_bar.rs
index c108862ea1..bb978b2ac1 100644
--- a/src/auto/level_bar.rs
+++ b/src/auto/level_bar.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 #[cfg(any(feature = "v3_6", feature = "dox"))]
 use LevelBarMode;
 use Orientable;
@@ -26,7 +27,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct LevelBar(Object<ffi::GtkLevelBar, ffi::GtkLevelBarClass>): Widget, Orientable;
+    pub struct LevelBar(Object<ffi::GtkLevelBar, ffi::GtkLevelBarClass>): Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_level_bar_get_type(),
diff --git a/src/auto/link_button.rs b/src/auto/link_button.rs
index 97a46b82bb..d868d8e1d9 100644
--- a/src/auto/link_button.rs
+++ b/src/auto/link_button.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Button;
 use Container;
 use Widget;
@@ -22,7 +23,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct LinkButton(Object<ffi::GtkLinkButton, ffi::GtkLinkButtonClass>): Button, Bin, Container, Widget, Actionable;
+    pub struct LinkButton(Object<ffi::GtkLinkButton, ffi::GtkLinkButtonClass>): Button, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_link_button_get_type(),
diff --git a/src/auto/list_box.rs b/src/auto/list_box.rs
index b715168a6d..c9fefa978d 100644
--- a/src/auto/list_box.rs
+++ b/src/auto/list_box.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 #[cfg(any(feature = "v3_10", feature = "dox"))]
 use Adjustment;
+use Buildable;
 use Container;
 #[cfg(any(feature = "v3_10", feature = "dox"))]
 use ListBoxRow;
@@ -26,7 +27,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ListBox(Object<ffi::GtkListBox, ffi::GtkListBoxClass>): Container, Widget;
+    pub struct ListBox(Object<ffi::GtkListBox, ffi::GtkListBoxClass>): Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_list_box_get_type(),
diff --git a/src/auto/list_box_row.rs b/src/auto/list_box_row.rs
index 9c4a713c9a..6ac1d81fb0 100644
--- a/src/auto/list_box_row.rs
+++ b/src/auto/list_box_row.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Widget;
 use ffi;
@@ -19,7 +20,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ListBoxRow(Object<ffi::GtkListBoxRow, ffi::GtkListBoxRowClass>): Bin, Container, Widget;
+    pub struct ListBoxRow(Object<ffi::GtkListBoxRow, ffi::GtkListBoxRowClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_list_box_row_get_type(),
diff --git a/src/auto/list_store.rs b/src/auto/list_store.rs
index e75362b457..616ff12193 100644
--- a/src/auto/list_store.rs
+++ b/src/auto/list_store.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use TreeIter;
 use TreeModel;
 use TreeSortable;
@@ -13,7 +14,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ListStore(Object<ffi::GtkListStore, ffi::GtkListStoreClass>): TreeModel, TreeSortable;
+    pub struct ListStore(Object<ffi::GtkListStore, ffi::GtkListStoreClass>): Buildable, TreeModel, TreeSortable;
 
     match fn {
         get_type => || ffi::gtk_list_store_get_type(),
diff --git a/src/auto/menu.rs b/src/auto/menu.rs
index 097c6c397b..5cc0f30417 100644
--- a/src/auto/menu.rs
+++ b/src/auto/menu.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use AccelGroup;
+use Buildable;
 use Container;
 use MenuItem;
 use MenuShell;
@@ -25,7 +26,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Menu(Object<ffi::GtkMenu, ffi::GtkMenuClass>): MenuShell, Container, Widget;
+    pub struct Menu(Object<ffi::GtkMenu, ffi::GtkMenuClass>): MenuShell, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_menu_get_type(),
diff --git a/src/auto/menu_bar.rs b/src/auto/menu_bar.rs
index 533fb59331..c00c77d9db 100644
--- a/src/auto/menu_bar.rs
+++ b/src/auto/menu_bar.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Container;
 use MenuShell;
 use PackDirection;
@@ -21,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct MenuBar(Object<ffi::GtkMenuBar, ffi::GtkMenuBarClass>): MenuShell, Container, Widget;
+    pub struct MenuBar(Object<ffi::GtkMenuBar, ffi::GtkMenuBarClass>): MenuShell, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_menu_bar_get_type(),
diff --git a/src/auto/menu_button.rs b/src/auto/menu_button.rs
index 3e4a2dcfbe..f5ae514bc4 100644
--- a/src/auto/menu_button.rs
+++ b/src/auto/menu_button.rs
@@ -1,10 +1,11 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 #[cfg(any(feature = "v3_6", feature = "dox"))]
 use ArrowType;
 use Bin;
+use Buildable;
 use Button;
 use Container;
 #[cfg(any(feature = "v3_6", feature = "dox"))]
@@ -34,7 +35,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct MenuButton(Object<ffi::GtkMenuButton, ffi::GtkMenuButtonClass>): ToggleButton, Button, Bin, Container, Widget, Actionable;
+    pub struct MenuButton(Object<ffi::GtkMenuButton, ffi::GtkMenuButtonClass>): ToggleButton, Button, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_menu_button_get_type(),
diff --git a/src/auto/menu_item.rs b/src/auto/menu_item.rs
index 3aacdde9e4..bb4e84e572 100644
--- a/src/auto/menu_item.rs
+++ b/src/auto/menu_item.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Container;
 use Menu;
 use Widget;
@@ -23,7 +24,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct MenuItem(Object<ffi::GtkMenuItem, ffi::GtkMenuItemClass>): Bin, Container, Widget, Actionable;
+    pub struct MenuItem(Object<ffi::GtkMenuItem, ffi::GtkMenuItemClass>): Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_menu_item_get_type(),
diff --git a/src/auto/menu_shell.rs b/src/auto/menu_shell.rs
index 78423d4e46..303f04a7d8 100644
--- a/src/auto/menu_shell.rs
+++ b/src/auto/menu_shell.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Container;
 use DirectionType;
 use MenuDirectionType;
@@ -25,7 +26,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct MenuShell(Object<ffi::GtkMenuShell, ffi::GtkMenuShellClass>): Container, Widget;
+    pub struct MenuShell(Object<ffi::GtkMenuShell, ffi::GtkMenuShellClass>): Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_menu_shell_get_type(),
diff --git a/src/auto/menu_tool_button.rs b/src/auto/menu_tool_button.rs
index 5a2bbf7d3a..490b82ac12 100644
--- a/src/auto/menu_tool_button.rs
+++ b/src/auto/menu_tool_button.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Container;
 use ToolButton;
 use ToolItem;
@@ -22,7 +23,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct MenuToolButton(Object<ffi::GtkMenuToolButton, ffi::GtkMenuToolButtonClass>): ToolButton, ToolItem, Bin, Container, Widget, Actionable;
+    pub struct MenuToolButton(Object<ffi::GtkMenuToolButton, ffi::GtkMenuToolButtonClass>): ToolButton, ToolItem, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_menu_tool_button_get_type(),
diff --git a/src/auto/message_dialog.rs b/src/auto/message_dialog.rs
index 000c1f0833..7405c4fbaa 100644
--- a/src/auto/message_dialog.rs
+++ b/src/auto/message_dialog.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Dialog;
 use MessageType;
@@ -23,7 +24,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct MessageDialog(Object<ffi::GtkMessageDialog, ffi::GtkMessageDialogClass>): Dialog, Window, Bin, Container, Widget;
+    pub struct MessageDialog(Object<ffi::GtkMessageDialog, ffi::GtkMessageDialogClass>): Dialog, Window, Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_message_dialog_get_type(),
diff --git a/src/auto/misc.rs b/src/auto/misc.rs
index 8376bdf97a..3e88820b76 100644
--- a/src/auto/misc.rs
+++ b/src/auto/misc.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Widget;
 use ffi;
 use glib;
@@ -18,7 +19,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Misc(Object<ffi::GtkMisc, ffi::GtkMiscClass>): Widget;
+    pub struct Misc(Object<ffi::GtkMisc, ffi::GtkMiscClass>): Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_misc_get_type(),
diff --git a/src/auto/mod.rs b/src/auto/mod.rs
index 9e73865e60..b9fda8b712 100644
--- a/src/auto/mod.rs
+++ b/src/auto/mod.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 mod about_dialog;
@@ -64,6 +64,10 @@ mod box_;
 pub use self::box_::Box;
 pub use self::box_::BoxExt;
 
+mod buildable;
+pub use self::buildable::Buildable;
+pub use self::buildable::BuildableExt;
+
 mod builder;
 pub use self::builder::Builder;
 pub use self::builder::BuilderExt;
@@ -947,6 +951,7 @@ pub mod traits {
     pub use super::AssistantExt;
     pub use super::BinExt;
     pub use super::BoxExt;
+    pub use super::BuildableExt;
     pub use super::BuilderExt;
     pub use super::ButtonExt;
     pub use super::ButtonBoxExt;
diff --git a/src/auto/model_button.rs b/src/auto/model_button.rs
index d65e50943f..98132561f7 100644
--- a/src/auto/model_button.rs
+++ b/src/auto/model_button.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Button;
 #[cfg(any(feature = "v3_16", feature = "dox"))]
 use ButtonRole;
@@ -31,7 +32,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ModelButton(Object<ffi::GtkModelButton>): Button, Bin, Container, Widget, Actionable;
+    pub struct ModelButton(Object<ffi::GtkModelButton>): Button, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_model_button_get_type(),
diff --git a/src/auto/notebook.rs b/src/auto/notebook.rs
index 453fa6470e..149abc6809 100644
--- a/src/auto/notebook.rs
+++ b/src/auto/notebook.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Container;
 use DirectionType;
 use NotebookTab;
@@ -24,7 +25,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Notebook(Object<ffi::GtkNotebook, ffi::GtkNotebookClass>): Container, Widget;
+    pub struct Notebook(Object<ffi::GtkNotebook, ffi::GtkNotebookClass>): Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_notebook_get_type(),
diff --git a/src/auto/orientable.rs b/src/auto/orientable.rs
index 54d770eb32..a044083953 100644
--- a/src/auto/orientable.rs
+++ b/src/auto/orientable.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Orientation;
diff --git a/src/auto/overlay.rs b/src/auto/overlay.rs
index f99baf0169..cd5cdaf096 100644
--- a/src/auto/overlay.rs
+++ b/src/auto/overlay.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Widget;
 use ffi;
@@ -15,7 +16,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Overlay(Object<ffi::GtkOverlay, ffi::GtkOverlayClass>): Bin, Container, Widget;
+    pub struct Overlay(Object<ffi::GtkOverlay, ffi::GtkOverlayClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_overlay_get_type(),
diff --git a/src/auto/page_setup.rs b/src/auto/page_setup.rs
index 3c89bf96f8..e518fc3e39 100644
--- a/src/auto/page_setup.rs
+++ b/src/auto/page_setup.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Error;
diff --git a/src/auto/paned.rs b/src/auto/paned.rs
index b52bf594ab..82049844f1 100644
--- a/src/auto/paned.rs
+++ b/src/auto/paned.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Container;
 use Orientable;
 use Orientation;
@@ -23,7 +24,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Paned(Object<ffi::GtkPaned, ffi::GtkPanedClass>): Container, Widget, Orientable;
+    pub struct Paned(Object<ffi::GtkPaned, ffi::GtkPanedClass>): Container, Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_paned_get_type(),
diff --git a/src/auto/paper_size.rs b/src/auto/paper_size.rs
index 6f13116c4b..e6163cbaab 100644
--- a/src/auto/paper_size.rs
+++ b/src/auto/paper_size.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Error;
diff --git a/src/auto/places_sidebar.rs b/src/auto/places_sidebar.rs
index ac28d2d39a..73b465c1ed 100644
--- a/src/auto/places_sidebar.rs
+++ b/src/auto/places_sidebar.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use PlacesOpenFlags;
 use ScrolledWindow;
@@ -26,7 +27,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct PlacesSidebar(Object<ffi::GtkPlacesSidebar, ffi::GtkPlacesSidebarClass>): ScrolledWindow, Bin, Container, Widget;
+    pub struct PlacesSidebar(Object<ffi::GtkPlacesSidebar, ffi::GtkPlacesSidebarClass>): ScrolledWindow, Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_places_sidebar_get_type(),
diff --git a/src/auto/popover.rs b/src/auto/popover.rs
index 8a09f636bd..ff318d63c1 100644
--- a/src/auto/popover.rs
+++ b/src/auto/popover.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 #[cfg(any(feature = "v3_20", feature = "dox"))]
 use PopoverConstraint;
@@ -25,7 +26,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Popover(Object<ffi::GtkPopover, ffi::GtkPopoverClass>): Bin, Container, Widget;
+    pub struct Popover(Object<ffi::GtkPopover, ffi::GtkPopoverClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_popover_get_type(),
diff --git a/src/auto/popover_menu.rs b/src/auto/popover_menu.rs
index bb67f5e4ee..9a3e4c6786 100644
--- a/src/auto/popover_menu.rs
+++ b/src/auto/popover_menu.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Popover;
 use Widget;
@@ -21,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct PopoverMenu(Object<ffi::GtkPopoverMenu, ffi::GtkPopoverMenuClass>): Popover, Bin, Container, Widget;
+    pub struct PopoverMenu(Object<ffi::GtkPopoverMenu, ffi::GtkPopoverMenuClass>): Popover, Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_popover_menu_get_type(),
diff --git a/src/auto/print_context.rs b/src/auto/print_context.rs
index 4e7ed77594..6e429875f6 100644
--- a/src/auto/print_context.rs
+++ b/src/auto/print_context.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use PageSetup;
diff --git a/src/auto/print_settings.rs b/src/auto/print_settings.rs
index cefcb20d82..4fac7e95f5 100644
--- a/src/auto/print_settings.rs
+++ b/src/auto/print_settings.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Error;
diff --git a/src/auto/progress_bar.rs b/src/auto/progress_bar.rs
index d59e470ecd..3ff80e5ce4 100644
--- a/src/auto/progress_bar.rs
+++ b/src/auto/progress_bar.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Orientable;
 use Widget;
 use ffi;
@@ -19,7 +20,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ProgressBar(Object<ffi::GtkProgressBar, ffi::GtkProgressBarClass>): Widget, Orientable;
+    pub struct ProgressBar(Object<ffi::GtkProgressBar, ffi::GtkProgressBarClass>): Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_progress_bar_get_type(),
diff --git a/src/auto/radio_button.rs b/src/auto/radio_button.rs
index 27fbb716d8..75f3854c08 100644
--- a/src/auto/radio_button.rs
+++ b/src/auto/radio_button.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Button;
 use CheckButton;
 use Container;
@@ -23,7 +24,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct RadioButton(Object<ffi::GtkRadioButton, ffi::GtkRadioButtonClass>): CheckButton, ToggleButton, Button, Bin, Container, Widget, Actionable;
+    pub struct RadioButton(Object<ffi::GtkRadioButton, ffi::GtkRadioButtonClass>): CheckButton, ToggleButton, Button, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_radio_button_get_type(),
diff --git a/src/auto/radio_menu_item.rs b/src/auto/radio_menu_item.rs
index 9d13f9d184..b6fd0b6202 100644
--- a/src/auto/radio_menu_item.rs
+++ b/src/auto/radio_menu_item.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use CheckMenuItem;
 use Container;
 use MenuItem;
@@ -22,7 +23,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct RadioMenuItem(Object<ffi::GtkRadioMenuItem, ffi::GtkRadioMenuItemClass>): CheckMenuItem, MenuItem, Bin, Container, Widget, Actionable;
+    pub struct RadioMenuItem(Object<ffi::GtkRadioMenuItem, ffi::GtkRadioMenuItemClass>): CheckMenuItem, MenuItem, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_radio_menu_item_get_type(),
diff --git a/src/auto/radio_tool_button.rs b/src/auto/radio_tool_button.rs
index 7fd5d8ac5b..ba9c9afa4e 100644
--- a/src/auto/radio_tool_button.rs
+++ b/src/auto/radio_tool_button.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Container;
 use RadioButton;
 use ToggleToolButton;
@@ -19,7 +20,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct RadioToolButton(Object<ffi::GtkRadioToolButton, ffi::GtkRadioToolButtonClass>): ToggleToolButton, ToolButton, ToolItem, Bin, Container, Widget, Actionable;
+    pub struct RadioToolButton(Object<ffi::GtkRadioToolButton, ffi::GtkRadioToolButtonClass>): ToggleToolButton, ToolButton, ToolItem, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_radio_tool_button_get_type(),
diff --git a/src/auto/range.rs b/src/auto/range.rs
index 2414207a14..2cdacbcd28 100644
--- a/src/auto/range.rs
+++ b/src/auto/range.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Adjustment;
+use Buildable;
 use Orientable;
 use ScrollType;
 use SensitivityType;
@@ -24,7 +25,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Range(Object<ffi::GtkRange, ffi::GtkRangeClass>): Widget, Orientable;
+    pub struct Range(Object<ffi::GtkRange, ffi::GtkRangeClass>): Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_range_get_type(),
diff --git a/src/auto/recent_chooser.rs b/src/auto/recent_chooser.rs
index 01d046e0ff..5c43a7c11c 100644
--- a/src/auto/recent_chooser.rs
+++ b/src/auto/recent_chooser.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Error;
diff --git a/src/auto/recent_chooser_dialog.rs b/src/auto/recent_chooser_dialog.rs
index 6137173cfb..7d3b6a9079 100644
--- a/src/auto/recent_chooser_dialog.rs
+++ b/src/auto/recent_chooser_dialog.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Dialog;
 use RecentChooser;
@@ -15,7 +16,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct RecentChooserDialog(Object<ffi::GtkRecentChooserDialog, ffi::GtkRecentChooserDialogClass>): Dialog, Window, Bin, Container, Widget, RecentChooser;
+    pub struct RecentChooserDialog(Object<ffi::GtkRecentChooserDialog, ffi::GtkRecentChooserDialogClass>): Dialog, Window, Bin, Container, Widget, Buildable, RecentChooser;
 
     match fn {
         get_type => || ffi::gtk_recent_chooser_dialog_get_type(),
diff --git a/src/auto/recent_chooser_widget.rs b/src/auto/recent_chooser_widget.rs
index 93e9db306f..1ee0c62c2d 100644
--- a/src/auto/recent_chooser_widget.rs
+++ b/src/auto/recent_chooser_widget.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Box;
+use Buildable;
 use Container;
 use Orientable;
 use RecentChooser;
@@ -16,7 +17,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct RecentChooserWidget(Object<ffi::GtkRecentChooserWidget, ffi::GtkRecentChooserWidgetClass>): Box, Container, Widget, Orientable, RecentChooser;
+    pub struct RecentChooserWidget(Object<ffi::GtkRecentChooserWidget, ffi::GtkRecentChooserWidgetClass>): Box, Container, Widget, Buildable, Orientable, RecentChooser;
 
     match fn {
         get_type => || ffi::gtk_recent_chooser_widget_get_type(),
diff --git a/src/auto/recent_filter.rs b/src/auto/recent_filter.rs
index d465003ff9..679739eeda 100644
--- a/src/auto/recent_filter.rs
+++ b/src/auto/recent_filter.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use RecentFilterFlags;
 use ffi;
 use glib::object::IsA;
@@ -11,7 +12,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct RecentFilter(Object<ffi::GtkRecentFilter>);
+    pub struct RecentFilter(Object<ffi::GtkRecentFilter>): Buildable;
 
     match fn {
         get_type => || ffi::gtk_recent_filter_get_type(),
diff --git a/src/auto/recent_info.rs b/src/auto/recent_info.rs
index fd2c1c4133..06be296c92 100644
--- a/src/auto/recent_info.rs
+++ b/src/auto/recent_info.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Error;
diff --git a/src/auto/recent_manager.rs b/src/auto/recent_manager.rs
index eba5af248e..37c54157f3 100644
--- a/src/auto/recent_manager.rs
+++ b/src/auto/recent_manager.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Error;
diff --git a/src/auto/revealer.rs b/src/auto/revealer.rs
index a489d9da50..83f3a5e51e 100644
--- a/src/auto/revealer.rs
+++ b/src/auto/revealer.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use RevealerTransitionType;
 use Widget;
@@ -21,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Revealer(Object<ffi::GtkRevealer, ffi::GtkRevealerClass>): Bin, Container, Widget;
+    pub struct Revealer(Object<ffi::GtkRevealer, ffi::GtkRevealerClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_revealer_get_type(),
diff --git a/src/auto/scale.rs b/src/auto/scale.rs
index a68ad16f5a..bd1d458368 100644
--- a/src/auto/scale.rs
+++ b/src/auto/scale.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Adjustment;
+use Buildable;
 use Orientable;
 use Orientation;
 use PositionType;
@@ -24,7 +25,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Scale(Object<ffi::GtkScale, ffi::GtkScaleClass>): Range, Widget, Orientable;
+    pub struct Scale(Object<ffi::GtkScale, ffi::GtkScaleClass>): Range, Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_scale_get_type(),
diff --git a/src/auto/scale_button.rs b/src/auto/scale_button.rs
index 7912c85349..b61fca2ad7 100644
--- a/src/auto/scale_button.rs
+++ b/src/auto/scale_button.rs
@@ -1,9 +1,10 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Adjustment;
 use Bin;
+use Buildable;
 use Button;
 use Container;
 use IconSize;
@@ -26,7 +27,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ScaleButton(Object<ffi::GtkScaleButton, ffi::GtkScaleButtonClass>): Button, Bin, Container, Widget, Actionable, Orientable;
+    pub struct ScaleButton(Object<ffi::GtkScaleButton, ffi::GtkScaleButtonClass>): Button, Bin, Container, Widget, Buildable, Actionable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_scale_button_get_type(),
diff --git a/src/auto/scrollable.rs b/src/auto/scrollable.rs
index cd10ff56ca..f33e3212fd 100644
--- a/src/auto/scrollable.rs
+++ b/src/auto/scrollable.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Adjustment;
diff --git a/src/auto/scrollbar.rs b/src/auto/scrollbar.rs
index f66b9a214d..7a2ffac799 100644
--- a/src/auto/scrollbar.rs
+++ b/src/auto/scrollbar.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Adjustment;
+use Buildable;
 use Orientable;
 use Orientation;
 use Range;
@@ -15,7 +16,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Scrollbar(Object<ffi::GtkScrollbar, ffi::GtkScrollbarClass>): Range, Widget, Orientable;
+    pub struct Scrollbar(Object<ffi::GtkScrollbar, ffi::GtkScrollbarClass>): Range, Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_scrollbar_get_type(),
diff --git a/src/auto/scrolled_window.rs b/src/auto/scrolled_window.rs
index 3809bc07e1..dae60851a9 100644
--- a/src/auto/scrolled_window.rs
+++ b/src/auto/scrolled_window.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Adjustment;
 use Bin;
+use Buildable;
 use Container;
 use CornerType;
 use DirectionType;
@@ -28,7 +29,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ScrolledWindow(Object<ffi::GtkScrolledWindow, ffi::GtkScrolledWindowClass>): Bin, Container, Widget;
+    pub struct ScrolledWindow(Object<ffi::GtkScrolledWindow, ffi::GtkScrolledWindowClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_scrolled_window_get_type(),
diff --git a/src/auto/search_bar.rs b/src/auto/search_bar.rs
index 8cab2bde0a..033e63c421 100644
--- a/src/auto/search_bar.rs
+++ b/src/auto/search_bar.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 #[cfg(any(feature = "v3_10", feature = "dox"))]
 use Entry;
@@ -24,7 +25,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct SearchBar(Object<ffi::GtkSearchBar, ffi::GtkSearchBarClass>): Bin, Container, Widget;
+    pub struct SearchBar(Object<ffi::GtkSearchBar, ffi::GtkSearchBarClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_search_bar_get_type(),
diff --git a/src/auto/search_entry.rs b/src/auto/search_entry.rs
index 81551ed6b3..8391c73bad 100644
--- a/src/auto/search_entry.rs
+++ b/src/auto/search_entry.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use CellEditable;
 use Editable;
 use Entry;
@@ -26,7 +27,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct SearchEntry(Object<ffi::GtkSearchEntry, ffi::GtkSearchEntryClass>): Entry, Widget, CellEditable, Editable;
+    pub struct SearchEntry(Object<ffi::GtkSearchEntry, ffi::GtkSearchEntryClass>): Entry, Widget, Buildable, CellEditable, Editable;
 
     match fn {
         get_type => || ffi::gtk_search_entry_get_type(),
diff --git a/src/auto/selection_data.rs b/src/auto/selection_data.rs
index f743d61819..c9d1b9584b 100644
--- a/src/auto/selection_data.rs
+++ b/src/auto/selection_data.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use TextBuffer;
diff --git a/src/auto/separator.rs b/src/auto/separator.rs
index 2dcd62587f..062fbe1c3f 100644
--- a/src/auto/separator.rs
+++ b/src/auto/separator.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Orientable;
 use Orientation;
 use Widget;
@@ -13,7 +14,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Separator(Object<ffi::GtkSeparator, ffi::GtkSeparatorClass>): Widget, Orientable;
+    pub struct Separator(Object<ffi::GtkSeparator, ffi::GtkSeparatorClass>): Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_separator_get_type(),
diff --git a/src/auto/separator_menu_item.rs b/src/auto/separator_menu_item.rs
index a4236c4b31..c768b2ef3c 100644
--- a/src/auto/separator_menu_item.rs
+++ b/src/auto/separator_menu_item.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Container;
 use MenuItem;
 use Widget;
@@ -15,7 +16,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct SeparatorMenuItem(Object<ffi::GtkSeparatorMenuItem, ffi::GtkSeparatorMenuItemClass>): MenuItem, Bin, Container, Widget, Actionable;
+    pub struct SeparatorMenuItem(Object<ffi::GtkSeparatorMenuItem, ffi::GtkSeparatorMenuItemClass>): MenuItem, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_separator_menu_item_get_type(),
diff --git a/src/auto/separator_tool_item.rs b/src/auto/separator_tool_item.rs
index a632e0d2d8..5534afa22d 100644
--- a/src/auto/separator_tool_item.rs
+++ b/src/auto/separator_tool_item.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use ToolItem;
 use Widget;
@@ -20,7 +21,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct SeparatorToolItem(Object<ffi::GtkSeparatorToolItem, ffi::GtkSeparatorToolItemClass>): ToolItem, Bin, Container, Widget;
+    pub struct SeparatorToolItem(Object<ffi::GtkSeparatorToolItem, ffi::GtkSeparatorToolItemClass>): ToolItem, Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_separator_tool_item_get_type(),
diff --git a/src/auto/settings.rs b/src/auto/settings.rs
index 893e303962..9b12d02bb3 100644
--- a/src/auto/settings.rs
+++ b/src/auto/settings.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CornerType;
diff --git a/src/auto/shortcuts_window.rs b/src/auto/shortcuts_window.rs
index 337df5c8cf..ea03617795 100644
--- a/src/auto/shortcuts_window.rs
+++ b/src/auto/shortcuts_window.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Widget;
 use Window;
@@ -21,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ShortcutsWindow(Object<ffi::GtkShortcutsWindow, ffi::GtkShortcutsWindowClass>): Window, Bin, Container, Widget;
+    pub struct ShortcutsWindow(Object<ffi::GtkShortcutsWindow, ffi::GtkShortcutsWindowClass>): Window, Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_shortcuts_window_get_type(),
diff --git a/src/auto/size_group.rs b/src/auto/size_group.rs
index 7d658caa38..c09b37ea69 100644
--- a/src/auto/size_group.rs
+++ b/src/auto/size_group.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use SizeGroupMode;
 use Widget;
 use ffi;
@@ -18,7 +19,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct SizeGroup(Object<ffi::GtkSizeGroup, ffi::GtkSizeGroupClass>);
+    pub struct SizeGroup(Object<ffi::GtkSizeGroup, ffi::GtkSizeGroupClass>): Buildable;
 
     match fn {
         get_type => || ffi::gtk_size_group_get_type(),
diff --git a/src/auto/spin_button.rs b/src/auto/spin_button.rs
index 4688a51855..759507585d 100644
--- a/src/auto/spin_button.rs
+++ b/src/auto/spin_button.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Adjustment;
+use Buildable;
 use CellEditable;
 use Editable;
 use Entry;
@@ -25,7 +26,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct SpinButton(Object<ffi::GtkSpinButton, ffi::GtkSpinButtonClass>): Entry, Widget, CellEditable, Editable, Orientable;
+    pub struct SpinButton(Object<ffi::GtkSpinButton, ffi::GtkSpinButtonClass>): Entry, Widget, Buildable, CellEditable, Editable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_spin_button_get_type(),
diff --git a/src/auto/spinner.rs b/src/auto/spinner.rs
index 326499bd3e..4cf9e80776 100644
--- a/src/auto/spinner.rs
+++ b/src/auto/spinner.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Widget;
 use ffi;
 use glib;
@@ -18,7 +19,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Spinner(Object<ffi::GtkSpinner, ffi::GtkSpinnerClass>): Widget;
+    pub struct Spinner(Object<ffi::GtkSpinner, ffi::GtkSpinnerClass>): Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_spinner_get_type(),
diff --git a/src/auto/stack.rs b/src/auto/stack.rs
index 03d02f4f10..9da9b10b9b 100644
--- a/src/auto/stack.rs
+++ b/src/auto/stack.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Container;
 use StackTransitionType;
 use Widget;
@@ -20,7 +21,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Stack(Object<ffi::GtkStack, ffi::GtkStackClass>): Container, Widget;
+    pub struct Stack(Object<ffi::GtkStack, ffi::GtkStackClass>): Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_stack_get_type(),
diff --git a/src/auto/stack_sidebar.rs b/src/auto/stack_sidebar.rs
index fcaf8f90a1..e2f1a26393 100644
--- a/src/auto/stack_sidebar.rs
+++ b/src/auto/stack_sidebar.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Stack;
 use Widget;
@@ -21,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct StackSidebar(Object<ffi::GtkStackSidebar, ffi::GtkStackSidebarClass>): Bin, Container, Widget;
+    pub struct StackSidebar(Object<ffi::GtkStackSidebar, ffi::GtkStackSidebarClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_stack_sidebar_get_type(),
diff --git a/src/auto/stack_switcher.rs b/src/auto/stack_switcher.rs
index 939a52f703..0756a15404 100644
--- a/src/auto/stack_switcher.rs
+++ b/src/auto/stack_switcher.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Box;
+use Buildable;
 use Container;
 use Orientable;
 use Stack;
@@ -22,7 +23,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct StackSwitcher(Object<ffi::GtkStackSwitcher, ffi::GtkStackSwitcherClass>): Box, Container, Widget, Orientable;
+    pub struct StackSwitcher(Object<ffi::GtkStackSwitcher, ffi::GtkStackSwitcherClass>): Box, Container, Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_stack_switcher_get_type(),
diff --git a/src/auto/status_icon.rs b/src/auto/status_icon.rs
index 9a730cb88f..1bfac687b8 100644
--- a/src/auto/status_icon.rs
+++ b/src/auto/status_icon.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ImageType;
diff --git a/src/auto/statusbar.rs b/src/auto/statusbar.rs
index 601b4e8838..8083bee7d4 100644
--- a/src/auto/statusbar.rs
+++ b/src/auto/statusbar.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Box;
+use Buildable;
 use Container;
 use Orientable;
 use Widget;
@@ -21,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Statusbar(Object<ffi::GtkStatusbar, ffi::GtkStatusbarClass>): Box, Container, Widget, Orientable;
+    pub struct Statusbar(Object<ffi::GtkStatusbar, ffi::GtkStatusbarClass>): Box, Container, Widget, Buildable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_statusbar_get_type(),
diff --git a/src/auto/style_context.rs b/src/auto/style_context.rs
index a1dea61f7a..27cc524593 100644
--- a/src/auto/style_context.rs
+++ b/src/auto/style_context.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use CssSection;
diff --git a/src/auto/style_properties.rs b/src/auto/style_properties.rs
index e74a88a012..c2f5e51745 100644
--- a/src/auto/style_properties.rs
+++ b/src/auto/style_properties.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use StateFlags;
diff --git a/src/auto/style_provider.rs b/src/auto/style_provider.rs
index 5d34ceddae..705b43ad22 100644
--- a/src/auto/style_provider.rs
+++ b/src/auto/style_provider.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ffi;
diff --git a/src/auto/switch.rs b/src/auto/switch.rs
index 4e2bdd496f..d4baadc155 100644
--- a/src/auto/switch.rs
+++ b/src/auto/switch.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
+use Buildable;
 use Widget;
 use ffi;
 use glib;
@@ -20,7 +21,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Switch(Object<ffi::GtkSwitch, ffi::GtkSwitchClass>): Widget, Actionable;
+    pub struct Switch(Object<ffi::GtkSwitch, ffi::GtkSwitchClass>): Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_switch_get_type(),
diff --git a/src/auto/symbolic_color.rs b/src/auto/symbolic_color.rs
index 7abcb5ef6e..e6dcef977b 100644
--- a/src/auto/symbolic_color.rs
+++ b/src/auto/symbolic_color.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use StyleProperties;
diff --git a/src/auto/target_list.rs b/src/auto/target_list.rs
index 01f4437de0..2affda8ce9 100644
--- a/src/auto/target_list.rs
+++ b/src/auto/target_list.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use TextBuffer;
diff --git a/src/auto/text_attributes.rs b/src/auto/text_attributes.rs
index 889cae2cba..54bbc47c3c 100644
--- a/src/auto/text_attributes.rs
+++ b/src/auto/text_attributes.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ffi;
diff --git a/src/auto/text_buffer.rs b/src/auto/text_buffer.rs
index fba544f8da..b0d7adc81c 100644
--- a/src/auto/text_buffer.rs
+++ b/src/auto/text_buffer.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Clipboard;
diff --git a/src/auto/text_child_anchor.rs b/src/auto/text_child_anchor.rs
index b1bc074b70..4fd1cbe8e7 100644
--- a/src/auto/text_child_anchor.rs
+++ b/src/auto/text_child_anchor.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Widget;
diff --git a/src/auto/text_iter.rs b/src/auto/text_iter.rs
index 685891ee57..c37098ff39 100644
--- a/src/auto/text_iter.rs
+++ b/src/auto/text_iter.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use TextBuffer;
diff --git a/src/auto/text_mark.rs b/src/auto/text_mark.rs
index 861894feb2..0ed26ef37e 100644
--- a/src/auto/text_mark.rs
+++ b/src/auto/text_mark.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use TextBuffer;
diff --git a/src/auto/text_tag.rs b/src/auto/text_tag.rs
index 958dcd75c6..9214dd63c4 100644
--- a/src/auto/text_tag.rs
+++ b/src/auto/text_tag.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Justification;
diff --git a/src/auto/text_tag_table.rs b/src/auto/text_tag_table.rs
index 880225fe85..e85fb754e9 100644
--- a/src/auto/text_tag_table.rs
+++ b/src/auto/text_tag_table.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use TextTag;
 use ffi;
 use glib;
@@ -17,7 +18,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct TextTagTable(Object<ffi::GtkTextTagTable, ffi::GtkTextTagTableClass>);
+    pub struct TextTagTable(Object<ffi::GtkTextTagTable, ffi::GtkTextTagTableClass>): Buildable;
 
     match fn {
         get_type => || ffi::gtk_text_tag_table_get_type(),
diff --git a/src/auto/text_view.rs b/src/auto/text_view.rs
index f44c3bdcf1..ee769a480e 100644
--- a/src/auto/text_view.rs
+++ b/src/auto/text_view.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Container;
 use DeleteType;
 #[cfg(any(feature = "v3_6", feature = "dox"))]
@@ -42,7 +43,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct TextView(Object<ffi::GtkTextView, ffi::GtkTextViewClass>): Container, Widget, Scrollable;
+    pub struct TextView(Object<ffi::GtkTextView, ffi::GtkTextViewClass>): Container, Widget, Buildable, Scrollable;
 
     match fn {
         get_type => || ffi::gtk_text_view_get_type(),
diff --git a/src/auto/toggle_button.rs b/src/auto/toggle_button.rs
index fab0ae44d4..9a709c894d 100644
--- a/src/auto/toggle_button.rs
+++ b/src/auto/toggle_button.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Button;
 use Container;
 use Widget;
@@ -22,7 +23,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ToggleButton(Object<ffi::GtkToggleButton, ffi::GtkToggleButtonClass>): Button, Bin, Container, Widget, Actionable;
+    pub struct ToggleButton(Object<ffi::GtkToggleButton, ffi::GtkToggleButtonClass>): Button, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_toggle_button_get_type(),
diff --git a/src/auto/toggle_tool_button.rs b/src/auto/toggle_tool_button.rs
index 9806ebacc3..6d48e41fc1 100644
--- a/src/auto/toggle_tool_button.rs
+++ b/src/auto/toggle_tool_button.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Container;
 use ToolButton;
 use ToolItem;
@@ -22,7 +23,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ToggleToolButton(Object<ffi::GtkToggleToolButton, ffi::GtkToggleToolButtonClass>): ToolButton, ToolItem, Bin, Container, Widget, Actionable;
+    pub struct ToggleToolButton(Object<ffi::GtkToggleToolButton, ffi::GtkToggleToolButtonClass>): ToolButton, ToolItem, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_toggle_tool_button_get_type(),
diff --git a/src/auto/tool_button.rs b/src/auto/tool_button.rs
index 84573abb06..acb9a6896b 100644
--- a/src/auto/tool_button.rs
+++ b/src/auto/tool_button.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Container;
 use ToolItem;
 use Widget;
@@ -21,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ToolButton(Object<ffi::GtkToolButton, ffi::GtkToolButtonClass>): ToolItem, Bin, Container, Widget, Actionable;
+    pub struct ToolButton(Object<ffi::GtkToolButton, ffi::GtkToolButtonClass>): ToolItem, Bin, Container, Widget, Buildable, Actionable;
 
     match fn {
         get_type => || ffi::gtk_tool_button_get_type(),
diff --git a/src/auto/tool_item.rs b/src/auto/tool_item.rs
index da64ff7d9a..cdf99cca7b 100644
--- a/src/auto/tool_item.rs
+++ b/src/auto/tool_item.rs
@@ -1,7 +1,8 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Bin;
+use Buildable;
 use Container;
 use Orientation;
 use ReliefStyle;
@@ -25,7 +26,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ToolItem(Object<ffi::GtkToolItem, ffi::GtkToolItemClass>): Bin, Container, Widget;
+    pub struct ToolItem(Object<ffi::GtkToolItem, ffi::GtkToolItemClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_tool_item_get_type(),
diff --git a/src/auto/tool_item_group.rs b/src/auto/tool_item_group.rs
index 3bb6de4a25..87cb1f8bab 100644
--- a/src/auto/tool_item_group.rs
+++ b/src/auto/tool_item_group.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Container;
 use ReliefStyle;
 use ToolItem;
@@ -23,7 +24,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ToolItemGroup(Object<ffi::GtkToolItemGroup, ffi::GtkToolItemGroupClass>): Container, Widget, ToolShell;
+    pub struct ToolItemGroup(Object<ffi::GtkToolItemGroup, ffi::GtkToolItemGroupClass>): Container, Widget, Buildable, ToolShell;
 
     match fn {
         get_type => || ffi::gtk_tool_item_group_get_type(),
diff --git a/src/auto/tool_palette.rs b/src/auto/tool_palette.rs
index 4d0f2c5ae2..934766f196 100644
--- a/src/auto/tool_palette.rs
+++ b/src/auto/tool_palette.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Container;
 use DestDefaults;
 use Orientable;
@@ -29,7 +30,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ToolPalette(Object<ffi::GtkToolPalette, ffi::GtkToolPaletteClass>): Container, Widget, Orientable, Scrollable;
+    pub struct ToolPalette(Object<ffi::GtkToolPalette, ffi::GtkToolPaletteClass>): Container, Widget, Buildable, Orientable, Scrollable;
 
     match fn {
         get_type => || ffi::gtk_tool_palette_get_type(),
diff --git a/src/auto/tool_shell.rs b/src/auto/tool_shell.rs
index d49dc2eda4..17b0284fa0 100644
--- a/src/auto/tool_shell.rs
+++ b/src/auto/tool_shell.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Orientation;
 use ReliefStyle;
 use SizeGroup;
@@ -16,7 +17,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ToolShell(Object<ffi::GtkToolShell, ffi::GtkToolShellIface>): Widget;
+    pub struct ToolShell(Object<ffi::GtkToolShell, ffi::GtkToolShellIface>): Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_tool_shell_get_type(),
diff --git a/src/auto/toolbar.rs b/src/auto/toolbar.rs
index 9bf940eec3..57feb2de28 100644
--- a/src/auto/toolbar.rs
+++ b/src/auto/toolbar.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use Container;
 use IconSize;
 use Orientable;
@@ -27,7 +28,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Toolbar(Object<ffi::GtkToolbar, ffi::GtkToolbarClass>): Container, Widget, Orientable, ToolShell;
+    pub struct Toolbar(Object<ffi::GtkToolbar, ffi::GtkToolbarClass>): Container, Widget, Buildable, Orientable, ToolShell;
 
     match fn {
         get_type => || ffi::gtk_toolbar_get_type(),
diff --git a/src/auto/tooltip.rs b/src/auto/tooltip.rs
index 58e13a982f..1abb968cb3 100644
--- a/src/auto/tooltip.rs
+++ b/src/auto/tooltip.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Widget;
diff --git a/src/auto/tree_iter.rs b/src/auto/tree_iter.rs
index ccf01132e0..f09779b885 100644
--- a/src/auto/tree_iter.rs
+++ b/src/auto/tree_iter.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ffi;
diff --git a/src/auto/tree_model.rs b/src/auto/tree_model.rs
index ed1605f696..a85fe7ddaa 100644
--- a/src/auto/tree_model.rs
+++ b/src/auto/tree_model.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use TreeIter;
diff --git a/src/auto/tree_model_filter.rs b/src/auto/tree_model_filter.rs
index 56f6487ad5..b541908217 100644
--- a/src/auto/tree_model_filter.rs
+++ b/src/auto/tree_model_filter.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use TreeIter;
diff --git a/src/auto/tree_path.rs b/src/auto/tree_path.rs
index bb59be7997..5df43a4f16 100644
--- a/src/auto/tree_path.rs
+++ b/src/auto/tree_path.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use ffi;
diff --git a/src/auto/tree_row_reference.rs b/src/auto/tree_row_reference.rs
index 0e4f32f163..1df5f85c04 100644
--- a/src/auto/tree_row_reference.rs
+++ b/src/auto/tree_row_reference.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use TreeModel;
diff --git a/src/auto/tree_selection.rs b/src/auto/tree_selection.rs
index 24ee12a188..c9baf4489b 100644
--- a/src/auto/tree_selection.rs
+++ b/src/auto/tree_selection.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use SelectionMode;
diff --git a/src/auto/tree_sortable.rs b/src/auto/tree_sortable.rs
index 6778a7f019..53d34d9703 100644
--- a/src/auto/tree_sortable.rs
+++ b/src/auto/tree_sortable.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use TreeModel;
diff --git a/src/auto/tree_store.rs b/src/auto/tree_store.rs
index c6449a3615..74d8a356fa 100644
--- a/src/auto/tree_store.rs
+++ b/src/auto/tree_store.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use TreeIter;
 use TreeModel;
 use TreeSortable;
@@ -13,7 +14,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct TreeStore(Object<ffi::GtkTreeStore, ffi::GtkTreeStoreClass>): TreeModel, TreeSortable;
+    pub struct TreeStore(Object<ffi::GtkTreeStore, ffi::GtkTreeStoreClass>): Buildable, TreeModel, TreeSortable;
 
     match fn {
         get_type => || ffi::gtk_tree_store_get_type(),
diff --git a/src/auto/tree_view.rs b/src/auto/tree_view.rs
index 944c890282..33ddfb3540 100644
--- a/src/auto/tree_view.rs
+++ b/src/auto/tree_view.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use CellRenderer;
 use Container;
 use Entry;
@@ -35,7 +36,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct TreeView(Object<ffi::GtkTreeView, ffi::GtkTreeViewClass>): Container, Widget, Scrollable;
+    pub struct TreeView(Object<ffi::GtkTreeView, ffi::GtkTreeViewClass>): Container, Widget, Buildable, Scrollable;
 
     match fn {
         get_type => || ffi::gtk_tree_view_get_type(),
diff --git a/src/auto/tree_view_column.rs b/src/auto/tree_view_column.rs
index 8d6c4adf7a..27298eb039 100644
--- a/src/auto/tree_view_column.rs
+++ b/src/auto/tree_view_column.rs
@@ -1,6 +1,7 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
+use Buildable;
 use CellArea;
 use CellLayout;
 use CellRenderer;
@@ -26,7 +27,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct TreeViewColumn(Object<ffi::GtkTreeViewColumn, ffi::GtkTreeViewColumnClass>): CellLayout;
+    pub struct TreeViewColumn(Object<ffi::GtkTreeViewColumn, ffi::GtkTreeViewColumnClass>): Buildable, CellLayout;
 
     match fn {
         get_type => || ffi::gtk_tree_view_column_get_type(),
diff --git a/src/auto/viewport.rs b/src/auto/viewport.rs
index 00ede27f6c..f44e52f26d 100644
--- a/src/auto/viewport.rs
+++ b/src/auto/viewport.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Adjustment;
 use Bin;
+use Buildable;
 use Container;
 use Scrollable;
 use ShadowType;
@@ -23,7 +24,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Viewport(Object<ffi::GtkViewport, ffi::GtkViewportClass>): Bin, Container, Widget, Scrollable;
+    pub struct Viewport(Object<ffi::GtkViewport, ffi::GtkViewportClass>): Bin, Container, Widget, Buildable, Scrollable;
 
     match fn {
         get_type => || ffi::gtk_viewport_get_type(),
diff --git a/src/auto/volume_button.rs b/src/auto/volume_button.rs
index a5e150c1e6..75a4186e26 100644
--- a/src/auto/volume_button.rs
+++ b/src/auto/volume_button.rs
@@ -1,8 +1,9 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Actionable;
 use Bin;
+use Buildable;
 use Button;
 use Container;
 use Orientable;
@@ -24,7 +25,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct VolumeButton(Object<ffi::GtkVolumeButton, ffi::GtkVolumeButtonClass>): ScaleButton, Button, Bin, Container, Widget, Actionable, Orientable;
+    pub struct VolumeButton(Object<ffi::GtkVolumeButton, ffi::GtkVolumeButtonClass>): ScaleButton, Button, Bin, Container, Widget, Buildable, Actionable, Orientable;
 
     match fn {
         get_type => || ffi::gtk_volume_button_get_type(),
diff --git a/src/auto/widget.rs b/src/auto/widget.rs
index b65dfce56f..cccb65ac3d 100644
--- a/src/auto/widget.rs
+++ b/src/auto/widget.rs
@@ -1,10 +1,11 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use AccelFlags;
 use AccelGroup;
 use Align;
 use Allocation;
+use Buildable;
 use Clipboard;
 use DirectionType;
 use DragResult;
@@ -45,7 +46,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Widget(Object<ffi::GtkWidget, ffi::GtkWidgetClass>);
+    pub struct Widget(Object<ffi::GtkWidget, ffi::GtkWidgetClass>): Buildable;
 
     match fn {
         get_type => || ffi::gtk_widget_get_type(),
diff --git a/src/auto/window.rs b/src/auto/window.rs
index fa70ce6439..a576128bc5 100644
--- a/src/auto/window.rs
+++ b/src/auto/window.rs
@@ -1,9 +1,10 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use AccelGroup;
 use Application;
 use Bin;
+use Buildable;
 use Container;
 use Error;
 use Widget;
@@ -29,7 +30,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Window(Object<ffi::GtkWindow, ffi::GtkWindowClass>): Bin, Container, Widget;
+    pub struct Window(Object<ffi::GtkWindow, ffi::GtkWindowClass>): Bin, Container, Widget, Buildable;
 
     match fn {
         get_type => || ffi::gtk_window_get_type(),
diff --git a/src/auto/window_group.rs b/src/auto/window_group.rs
index fb2e7ff0ba..3745824dd0 100644
--- a/src/auto/window_group.rs
+++ b/src/auto/window_group.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (0409d73) from gir-files (469db10)
+// This file was generated by gir (e912ccf) from gir-files (469db10)
 // DO NOT EDIT
 
 use Widget;
diff --git a/src/buildable.rs b/src/buildable.rs
new file mode 100644
index 0000000000..2ef92bfcaa
--- /dev/null
+++ b/src/buildable.rs
@@ -0,0 +1,28 @@
+// Copyright 2016, The Gtk-rs Project Developers.
+// See the COPYRIGHT file at the top-level directory of this distribution.
+// Licensed under the MIT license, see the LICENSE file or <http://opensource.org/licenses/MIT>
+
+use ffi;
+use glib::translate::*;
+use Buildable;
+use IsA;
+
+pub trait BuildableExtManual {
+    fn get_name(&self) -> Option<String>;
+
+    fn set_name(&self, name: &str);
+}
+
+impl<O: IsA<Buildable>> BuildableExtManual for O {
+    fn get_name(&self) -> Option<String> {
+        unsafe {
+            from_glib_none(ffi::gtk_buildable_get_name(self.to_glib_none().0))
+        }
+    }
+
+    fn set_name(&self, name: &str) {
+        unsafe {
+            ffi::gtk_buildable_set_name(self.to_glib_none().0, name.to_glib_none().0);
+        }
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index cd33e65793..af878abf9c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -200,6 +200,7 @@ mod auto;
 mod app_chooser;
 mod application;
 mod assistant;
+mod buildable;
 mod builder;
 mod color_button;
 mod color_chooser;
diff --git a/src/prelude.rs b/src/prelude.rs
index cfcb913236..da4b53462c 100644
--- a/src/prelude.rs
+++ b/src/prelude.rs
@@ -10,6 +10,7 @@ pub use auto::traits::*;
 
 pub use app_chooser::AppChooserExt;
 pub use assistant::AssistantExtManual;
+pub use buildable::BuildableExtManual;
 pub use color_button::ColorButtonExtManual;
 pub use color_chooser::ColorChooserExtManual;
 pub use dialog::DialogExtManual;