[gnome-build-meta/matthiasc/40.4] json-glib: Don't build docs

[Matthias Clasen <matthiasc src gnome org>]

commit 39f2aa0357d3ca27872cec11f1adf043d7487f1b
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Aug 18 23:41:29 2021 -0400

    json-glib: Don't build docs
    
    This failed to build.

 elements/sdk/json-glib.bst | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/elements/sdk/json-glib.bst b/elements/sdk/json-glib.bst
index be76f2a14..418eef3cf 100644
--- a/elements/sdk/json-glib.bst
+++ b/elements/sdk/json-glib.bst
@@ -5,11 +5,13 @@ sources:
   ref: b1f6a7930808f77a827f3b397a04bb89d4c0c0b2550885d4a5e4c411dfa13f5f
 build-depends:
 - sdk/gobject-introspection.bst
-- sdk/gtk-doc.bst
 - freedesktop-sdk.bst:public-stacks/buildsystem-meson.bst
 depends:
 - sdk/glib.bst
 - freedesktop-sdk.bst:bootstrap-import.bst
+variables:
+  meson-local: >-
+    -Dgtk_doc=disabled
 public:
   bst:
     split-rules: