gdk: Convince gtk-doc to include backend docs

This is almost as unpleasant with meson as it is with autotools.

diff --git a/docs/reference/gdk/meson.build b/docs/reference/gdk/meson.build
index f9150a99093d575cb89fc978f636c1b64dfa4fa7..3f462f2f024425ccd1fcc13f903593a4bdb174cc 100644 (file)
--- a/docs/reference/gdk/meson.build
+++ b/docs/reference/gdk/meson.build
@@ -87,6 +87,8 @@ gnome.gtkdoc('gdk4',
              main_xml: 'gdk4-docs.xml',
              src_dir: [
               join_paths(meson.source_root(), 'gdk'),
+              join_paths(meson.source_root(), 'gdk', 'x11'),
+              join_paths(meson.source_root(), 'gdk', 'wayland'),
               join_paths(meson.build_root(), 'gdk'),
             ],
              dependencies: libgtk_dep,