diff -r dee5afe5301f -r 3f74d0d4af4c src/corelib/tools/qstringbuilder.h
--- a/src/corelib/tools/qstringbuilder.h	Mon Mar 15 12:43:09 2010 +0200
+++ b/src/corelib/tools/qstringbuilder.h	Thu Apr 08 14:19:33 2010 +0300
@@ -71,7 +71,7 @@
 
 private:
     const int m_size;
-    const char *m_data;
+    const char * const m_data;
 };
 
 struct Q_CORE_EXPORT QAbstractConcatenable