[gnome-shell] extensionPrefs: Fake Config module

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit ed21a4e5c18211bbcc1bed8e2731463ab815e1cb
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Mar 9 01:59:09 2020 +0100

    extensionPrefs: Fake Config module
    
    We include config.js because it is a dependency of ExtensionUtils,
    but it's not actually used in the code paths we exercise.
    
    As we want to allow stand-alone builds of the app, it is much easier to
    fake the module than to either include a generated file from elsewhere
    in the tree or generate it ourselves.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1133

 js/extensionPrefs/js/meson.build    | 5 +----
 js/extensionPrefs/js/misc/config.js | 1 +
 2 files changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/js/extensionPrefs/js/meson.build b/js/extensionPrefs/js/meson.build
index 56687bf6c2..97e568d7c8 100644
--- a/js/extensionPrefs/js/meson.build
+++ b/js/extensionPrefs/js/meson.build
@@ -22,13 +22,10 @@ configure_file(
   install_dir: pkgdatadir,
 )
 
-config_dir = '@0@/../..'.format(meson.current_build_dir())
-
 gnome.compile_resources(
   app_id + '.src',
   app_id + '.src.gresource.xml',
-  dependencies: [config_js],
-  source_dir: ['.', '../..', config_dir],
+  source_dir: ['.', '../..'],
   gresource_bundle: true,
   install: true,
   install_dir: pkgdatadir
diff --git a/js/extensionPrefs/js/misc/config.js b/js/extensionPrefs/js/misc/config.js
new file mode 100644
index 0000000000..d213b78252
--- /dev/null
+++ b/js/extensionPrefs/js/misc/config.js
@@ -0,0 +1 @@
+/* Fake module to satify import in ExtensionUtils */