[gtk/ebassi/doc-fixes: 7/8] docs: Add yet another private header

[Emmanuele Bassi <ebassi src gnome org>]

commit 365e722860134dcdcb3ad301de68c1579d48c576
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Wed Dec 2 15:48:17 2020 +0000

    docs: Add yet another private header

 docs/reference/gdk/meson.build | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/docs/reference/gdk/meson.build b/docs/reference/gdk/meson.build
index a4636851a0..591df2de05 100644
--- a/docs/reference/gdk/meson.build
+++ b/docs/reference/gdk/meson.build
@@ -8,6 +8,7 @@ private_headers = [
   'gdkcontentformatsprivate.h',
   'gdkcontentproviderprivate.h',
   'gdkcursorprivate.h',
+  'gdkdebug.h',
   'gdkdevicepadprivate.h',
   'gdkdeviceprivate.h',
   'gdkdevicetoolprivate.h',