build: add gtkoverlaylayout.h to the list of public headers

GtkOverlayLayout is now public but the header is not installed.

diff --git a/gtk/meson.build b/gtk/meson.build
index 56fd8399d99751723cb2deac4b733e13d63271cb..9012ae1a5c8a20bfec382fc15c0a6fe9b99bd0cf 100644 (file)
--- a/gtk/meson.build
+++ b/gtk/meson.build
@@ -534,6 +534,7 @@ gtk_public_headers = files([
   'gtknotebook.h',
   'gtkorientable.h',
   'gtkoverlay.h',
+  'gtkoverlaylayout.h',
   'gtkpadcontroller.h',
   'gtkpagesetup.h',
   'gtkpaned.h',