Allow the signature button wikitext to be overridden locally

[lhc/web/wiklou.git] / maintenance / update.php

diff --git a/maintenance/update.php b/maintenance/update.php
index 43b10c8..775fa7b 100755 (executable)
--- a/maintenance/update.php
+++ b/maintenance/update.php
@@ -83,6 +83,13 @@ class UpdateMediaWiki extends Maintenance {
                                "ABORTING (see https://bugs.php.net/bug.php?id=45996).\n",
                                true );
                }
+
+               if ( !function_exists( 'mb_strlen' ) ) {
+                       $this->error(
+                               "MediaWiki now requires the mbstring PHP extension, your system doesn't have it.\n"
+                               . "ABORTING.\n",
+                               true );
+               }
        }
 
        function execute() {