Ticket #21761: 21761.patch

wp-includes/functions.php

@@ -2539 +2539 @@
  */
 function wp_widgets_add_menu() {
         global $submenu;
+
+        if ( ! current_theme_supports( 'widgets' ) )
+                return;
+
         $submenu['themes.php'][7] = array( __( 'Widgets' ), 'edit_theme_options', 'widgets.php' );
         ksort( $submenu['themes.php'], SORT_NUMERIC );
 }