From 19de536b86e29ed7961b2d50223106c31a436106 Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Mon, 19 Nov 2012 12:06:38 +0100
Subject: Check mbstring extension before calling mb_internal_encoding()

---
 program/include/rcube_mime.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'program/include/rcube_mime.php')

diff --git a/program/include/rcube_mime.php b/program/include/rcube_mime.php
index 48175b46a..7ce7c90fe 100644
--- a/program/include/rcube_mime.php
+++ b/program/include/rcube_mime.php
@@ -572,7 +572,7 @@ class rcube_mime
      */
     public static function wordwrap($string, $width=75, $break="\n", $cut=false, $charset=null)
     {
-        if ($charset)
+        if ($charset && function_exists('mb_internal_encoding'))
             mb_internal_encoding($charset);
 
         $para   = preg_split('/\r?\n/', $string);
@@ -629,7 +629,7 @@ class rcube_mime
             }
         }
 
-        if ($charset)
+        if ($charset && function_exists('mb_internal_encoding'))
             mb_internal_encoding(RCMAIL_CHARSET);
 
         return $string;
-- 
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