[gtk/ebassi/gidocgen] fixup! Generate GTK API reference(s) with gi-docgen

[Emmanuele Bassi <ebassi src gnome org>]

commit ed92ed5b27ad5091ec936ce94e266c6cc28fbe2e
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Mon Feb 15 23:33:24 2021 +0000

    fixup! Generate GTK API reference(s) with gi-docgen

 docs/reference/gdk/meson.build | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/docs/reference/gdk/meson.build b/docs/reference/gdk/meson.build
index c296084d5e..c025af305d 100644
--- a/docs/reference/gdk/meson.build
+++ b/docs/reference/gdk/meson.build
@@ -74,7 +74,7 @@ if get_option('gtk_doc')
         '--content-dir=@0@'.format(meson.current_source_dir()),
         '@INPUT@',
       ],
-      depend_files: [ 'gdk.toml', expand_content_md_files ],
+      depend_files: [ 'gdk.toml', gdk_gir[0], expand_content_md_files ],
       build_by_default: true,
     )
   endif
@@ -93,7 +93,7 @@ if get_option('gtk_doc')
         '--content-dir=@0@'.format(meson.current_source_dir()),
         '@INPUT@',
       ],
-      depend_files: [ 'gdk.toml', expand_content_md_files ],
+      depend_files: [ 'gdk.toml', gdk_gir[0], expand_content_md_files ],
       build_by_default: true,
     )
   endif