Add single-include guards to a11y headers

More preparation for installing these headers.

44 files changed, 176 insertions, 0 deletions

diff --git a/gtk/a11y/gtkarrowaccessible.h b/gtk/a11y/gtkarrowaccessible.h
index 151f419e91..42355e1d00 100644
--- a/gtk/a11y/gtkarrowaccessible.h
+++ b/gtk/a11y/gtkarrowaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_ARROW_ACCESSIBLE_H__
 #define __GTK_ARROW_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkbooleancellaccessible.h b/gtk/a11y/gtkbooleancellaccessible.h
index 7bef74ffc9..79cfb60177 100644
--- a/gtk/a11y/gtkbooleancellaccessible.h
+++ b/gtk/a11y/gtkbooleancellaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_BOOLEAN_CELL_ACCESSIBLE_H__
 #define __GTK_BOOLEAN_CELL_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkbuttonaccessible.h b/gtk/a11y/gtkbuttonaccessible.h
index e8fe21cd21..f06a754ae9 100644
--- a/gtk/a11y/gtkbuttonaccessible.h
+++ b/gtk/a11y/gtkbuttonaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_BUTTON_ACCESSIBLE_H__
 #define __GTK_BUTTON_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkcellaccessible.h b/gtk/a11y/gtkcellaccessible.h
index caa1cc6e61..7a2d88ec03 100644
--- a/gtk/a11y/gtkcellaccessible.h
+++ b/gtk/a11y/gtkcellaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_CELL_ACCESSIBLE_H__
 #define __GTK_CELL_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkcellaccessibleparent.h b/gtk/a11y/gtkcellaccessibleparent.h
index 07a5b004d9..bef4f3680f 100644
--- a/gtk/a11y/gtkcellaccessibleparent.h
+++ b/gtk/a11y/gtkcellaccessibleparent.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_CELL_ACCESSIBLE_PARENT_H__
 #define __GTK_CELL_ACCESSIBLE_PARENT_H__
 
diff --git a/gtk/a11y/gtkcheckmenuitemaccessible.h b/gtk/a11y/gtkcheckmenuitemaccessible.h
index 6d2516cb29..d73432d360 100644
--- a/gtk/a11y/gtkcheckmenuitemaccessible.h
+++ b/gtk/a11y/gtkcheckmenuitemaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_CHECK_MENU_ITEM_ACCESSIBLE_H__
 #define __GTK_CHECK_MENU_ITEM_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkcomboboxaccessible.h b/gtk/a11y/gtkcomboboxaccessible.h
index 214f5eb4ad..d0c082d7be 100644
--- a/gtk/a11y/gtkcomboboxaccessible.h
+++ b/gtk/a11y/gtkcomboboxaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_COMBO_BOX_ACCESSIBLE_H__
 #define __GTK_COMBO_BOX_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkcontaineraccessible.h b/gtk/a11y/gtkcontaineraccessible.h
index 605f22e0fb..1811df6fec 100644
--- a/gtk/a11y/gtkcontaineraccessible.h
+++ b/gtk/a11y/gtkcontaineraccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_CONTAINER_ACCESSIBLE_H__
 #define __GTK_CONTAINER_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkcontainercellaccessible.h b/gtk/a11y/gtkcontainercellaccessible.h
index 7f78f77c47..234e87d5d0 100644
--- a/gtk/a11y/gtkcontainercellaccessible.h
+++ b/gtk/a11y/gtkcontainercellaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_CONTAINER_CELL_ACCESSIBLE_H__
 #define __GTK_CONTAINER_CELL_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkentryaccessible.h b/gtk/a11y/gtkentryaccessible.h
index 30cdfd8847..0492287e1e 100644
--- a/gtk/a11y/gtkentryaccessible.h
+++ b/gtk/a11y/gtkentryaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_ENTRY_ACCESSIBLE_H__
 #define __GTK_ENTRY_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkexpanderaccessible.h b/gtk/a11y/gtkexpanderaccessible.h
index b110c24206..82d635fc9a 100644
--- a/gtk/a11y/gtkexpanderaccessible.h
+++ b/gtk/a11y/gtkexpanderaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_EXPANDER_ACCESSIBLE_H__
 #define __GTK_EXPANDER_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkframeaccessible.h b/gtk/a11y/gtkframeaccessible.h
index e82119e3f5..9d794b42db 100644
--- a/gtk/a11y/gtkframeaccessible.h
+++ b/gtk/a11y/gtkframeaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_FRAME_ACCESSIBLE_H__
 #define __GTK_FRAME_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkiconviewaccessible.h b/gtk/a11y/gtkiconviewaccessible.h
index 0474b3d393..76977b5d3d 100644
--- a/gtk/a11y/gtkiconviewaccessible.h
+++ b/gtk/a11y/gtkiconviewaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_ICON_VIEW_ACCESSIBLE_H__
 #define __GTK_ICON_VIEW_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkimageaccessible.h b/gtk/a11y/gtkimageaccessible.h
index dae9cdc6f5..f6d70dda23 100644
--- a/gtk/a11y/gtkimageaccessible.h
+++ b/gtk/a11y/gtkimageaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_IMAGE_ACCESSIBLE_H__
 #define __GTK_IMAGE_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkimagecellaccessible.h b/gtk/a11y/gtkimagecellaccessible.h
index b1db0f7b1d..c288d89c66 100644
--- a/gtk/a11y/gtkimagecellaccessible.h
+++ b/gtk/a11y/gtkimagecellaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_IMAGE_CELL_ACCESSIBLE_H__
 #define __GTK_IMAGE_CELL_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtklabelaccessible.h b/gtk/a11y/gtklabelaccessible.h
index 7f38ce32b1..48bdf8c2b2 100644
--- a/gtk/a11y/gtklabelaccessible.h
+++ b/gtk/a11y/gtklabelaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_LABEL_ACCESSIBLE_H__
 #define __GTK_LABEL_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtklinkbuttonaccessible.h b/gtk/a11y/gtklinkbuttonaccessible.h
index b3eb7b8130..b4844139f7 100644
--- a/gtk/a11y/gtklinkbuttonaccessible.h
+++ b/gtk/a11y/gtklinkbuttonaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_LINK_BUTTON_ACCESSIBLE_H__
 #define __GTK_LINK_BUTTON_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtklockbuttonaccessible.h b/gtk/a11y/gtklockbuttonaccessible.h
index c275072de6..6a9bc2fb5b 100644
--- a/gtk/a11y/gtklockbuttonaccessible.h
+++ b/gtk/a11y/gtklockbuttonaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_LOCK_BUTTON_ACCESSIBLE_H__
 #define __GTK_LOCK_BUTTON_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkmenuaccessible.h b/gtk/a11y/gtkmenuaccessible.h
index 8b6556faa4..95b21e85b9 100644
--- a/gtk/a11y/gtkmenuaccessible.h
+++ b/gtk/a11y/gtkmenuaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_MENU_ACCESSIBLE_H__
 #define __GTK_MENU_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkmenuitemaccessible.h b/gtk/a11y/gtkmenuitemaccessible.h
index 7f12ebdb23..98530e7c2a 100644
--- a/gtk/a11y/gtkmenuitemaccessible.h
+++ b/gtk/a11y/gtkmenuitemaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_MENU_ITEM_ACCESSIBLE_H__
 #define __GTK_MENU_ITEM_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkmenushellaccessible.h b/gtk/a11y/gtkmenushellaccessible.h
index 393ce4bb3b..156a8200a0 100644
--- a/gtk/a11y/gtkmenushellaccessible.h
+++ b/gtk/a11y/gtkmenushellaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_MENU_SHELL_ACCESSIBLE_H__
 #define __GTK_MENU_SHELL_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtknotebookaccessible.h b/gtk/a11y/gtknotebookaccessible.h
index 60146a7a2d..6ffc381d6a 100644
--- a/gtk/a11y/gtknotebookaccessible.h
+++ b/gtk/a11y/gtknotebookaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_NOTEBOOK_ACCESSIBLE_H__
 #define __GTK_NOTEBOOK_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtknotebookpageaccessible.h b/gtk/a11y/gtknotebookpageaccessible.h
index 63db83677e..86bd005c9e 100644
--- a/gtk/a11y/gtknotebookpageaccessible.h
+++ b/gtk/a11y/gtknotebookpageaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_NOTEBOOK_PAGE_ACCESSIBLE_H__
 #define __GTK_NOTEBOOK_PAGE_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkpanedaccessible.h b/gtk/a11y/gtkpanedaccessible.h
index 69aced6ace..7ed4a0130d 100644
--- a/gtk/a11y/gtkpanedaccessible.h
+++ b/gtk/a11y/gtkpanedaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_PANED_ACCESSIBLE_H__
 #define __GTK_PANED_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkprogressbaraccessible.h b/gtk/a11y/gtkprogressbaraccessible.h
index 0979ad21cf..39a1521961 100644
--- a/gtk/a11y/gtkprogressbaraccessible.h
+++ b/gtk/a11y/gtkprogressbaraccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_PROGRESS_BAR_ACCESSIBLE_H__
 #define __GTK_PROGRESS_BAR_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkradiobuttonaccessible.h b/gtk/a11y/gtkradiobuttonaccessible.h
index f10a1e34a9..d3ce8dcf76 100644
--- a/gtk/a11y/gtkradiobuttonaccessible.h
+++ b/gtk/a11y/gtkradiobuttonaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_RADIO_BUTTON_ACCESSIBLE_H__
 #define __GTK_RADIO_BUTTON_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkradiomenuitemaccessible.h b/gtk/a11y/gtkradiomenuitemaccessible.h
index bdf3690500..2c9f89acee 100644
--- a/gtk/a11y/gtkradiomenuitemaccessible.h
+++ b/gtk/a11y/gtkradiomenuitemaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_RADIO_MENU_ITEM_ACCESSIBLE_H__
 #define __GTK_RADIO_MENU_ITEM_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkrangeaccessible.h b/gtk/a11y/gtkrangeaccessible.h
index 47db74ae38..7fbba15166 100644
--- a/gtk/a11y/gtkrangeaccessible.h
+++ b/gtk/a11y/gtkrangeaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_RANGE_ACCESSIBLE_H__
 #define __GTK_RANGE_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkrenderercellaccessible.h b/gtk/a11y/gtkrenderercellaccessible.h
index 4bb2625685..a171918f7d 100644
--- a/gtk/a11y/gtkrenderercellaccessible.h
+++ b/gtk/a11y/gtkrenderercellaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_RENDERER_CELL_ACCESSIBLE_H__
 #define __GTK_RENDERER_CELL_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkscaleaccessible.h b/gtk/a11y/gtkscaleaccessible.h
index 42301ef526..4cb249a357 100644
--- a/gtk/a11y/gtkscaleaccessible.h
+++ b/gtk/a11y/gtkscaleaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_SCALE_ACCESSIBLE_H__
 #define __GTK_SCALE_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkscalebuttonaccessible.h b/gtk/a11y/gtkscalebuttonaccessible.h
index 4a60164f39..e0acf186b1 100644
--- a/gtk/a11y/gtkscalebuttonaccessible.h
+++ b/gtk/a11y/gtkscalebuttonaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_SCALE_BUTTON_ACCESSIBLE_H__
 #define __GTK_SCALE_BUTTON_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkscrollbaraccessible.h b/gtk/a11y/gtkscrollbaraccessible.h
index c32144d03a..57b9847692 100644
--- a/gtk/a11y/gtkscrollbaraccessible.h
+++ b/gtk/a11y/gtkscrollbaraccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_SCROLLBAR_ACCESSIBLE_H__
 #define __GTK_SCROLLBAR_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkscrolledwindowaccessible.h b/gtk/a11y/gtkscrolledwindowaccessible.h
index fb31190872..b847f8fdfe 100644
--- a/gtk/a11y/gtkscrolledwindowaccessible.h
+++ b/gtk/a11y/gtkscrolledwindowaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_SCROLLED_WINDOW_ACCESSIBLE_H__
 #define __GTK_SCROLLED_WINDOW_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkspinbuttonaccessible.h b/gtk/a11y/gtkspinbuttonaccessible.h
index a2b4502d94..2b3d5dd499 100644
--- a/gtk/a11y/gtkspinbuttonaccessible.h
+++ b/gtk/a11y/gtkspinbuttonaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_SPIN_BUTTON_ACCESSIBLE_H__
 #define __GTK_SPIN_BUTTON_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkspinneraccessible.h b/gtk/a11y/gtkspinneraccessible.h
index fdb3f498fc..d0b2570191 100644
--- a/gtk/a11y/gtkspinneraccessible.h
+++ b/gtk/a11y/gtkspinneraccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_SPINNER_ACCESSIBLE_H__
 #define __GTK_SPINNER_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkstatusbaraccessible.h b/gtk/a11y/gtkstatusbaraccessible.h
index 7706f47669..8110b5755a 100644
--- a/gtk/a11y/gtkstatusbaraccessible.h
+++ b/gtk/a11y/gtkstatusbaraccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_STATUSBAR_ACCESSIBLE_H__
 #define __GTK_STATUSBAR_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkswitchaccessible.h b/gtk/a11y/gtkswitchaccessible.h
index 7e11513592..93f2f49d22 100644
--- a/gtk/a11y/gtkswitchaccessible.h
+++ b/gtk/a11y/gtkswitchaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_SWITCH_ACCESSIBLE_H__
 #define __GTK_SWITCH_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtktextcellaccessible.h b/gtk/a11y/gtktextcellaccessible.h
index 21c1ffa173..3d9b4ad88e 100644
--- a/gtk/a11y/gtktextcellaccessible.h
+++ b/gtk/a11y/gtktextcellaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_TEXT_CELL_ACCESSIBLE_H__
 #define __GTK_TEXT_CELL_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtktextviewaccessible.h b/gtk/a11y/gtktextviewaccessible.h
index c13d58f1cc..237120c159 100644
--- a/gtk/a11y/gtktextviewaccessible.h
+++ b/gtk/a11y/gtktextviewaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_TEXT_VIEW_ACCESSIBLE_H__
 #define __GTK_TEXT_VIEW_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtktogglebuttonaccessible.h b/gtk/a11y/gtktogglebuttonaccessible.h
index 328e10796c..0749a0e019 100644
--- a/gtk/a11y/gtktogglebuttonaccessible.h
+++ b/gtk/a11y/gtktogglebuttonaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_TOGGLE_BUTTON_ACCESSIBLE_H__
 #define __GTK_TOGGLE_BUTTON_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtktoplevelaccessible.h b/gtk/a11y/gtktoplevelaccessible.h
index 07e4c3497d..f2982b4fee 100644
--- a/gtk/a11y/gtktoplevelaccessible.h
+++ b/gtk/a11y/gtktoplevelaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_TOPLEVEL_ACCESSIBLE_H__
 #define __GTK_TOPLEVEL_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtktreeviewaccessible.h b/gtk/a11y/gtktreeviewaccessible.h
index 4c8730fc54..1efdd10201 100644
--- a/gtk/a11y/gtktreeviewaccessible.h
+++ b/gtk/a11y/gtktreeviewaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_TREE_VIEW_ACCESSIBLE_H__
 #define __GTK_TREE_VIEW_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkwidgetaccessible.h b/gtk/a11y/gtkwidgetaccessible.h
index 003d2fbe5d..da96658739 100644
--- a/gtk/a11y/gtkwidgetaccessible.h
+++ b/gtk/a11y/gtkwidgetaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_WIDGET_ACCESSIBLE_H__
 #define __GTK_WIDGET_ACCESSIBLE_H__
 
diff --git a/gtk/a11y/gtkwindowaccessible.h b/gtk/a11y/gtkwindowaccessible.h
index 5933b87ddc..a91f0942ae 100644
--- a/gtk/a11y/gtkwindowaccessible.h
+++ b/gtk/a11y/gtkwindowaccessible.h
@@ -15,6 +15,10 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
 #ifndef __GTK_WINDOW_ACCESSIBLE_H__
 #define __GTK_WINDOW_ACCESSIBLE_H__