diff -r 56cd8111b7f7 -r 41300fa6a67c src/corelib/global/qlibraryinfo.h
--- a/src/corelib/global/qlibraryinfo.h	Tue Jan 26 12:42:25 2010 +0200
+++ b/src/corelib/global/qlibraryinfo.h	Tue Feb 02 00:43:10 2010 +0200
@@ -43,6 +43,7 @@
 #define QLIBRARYINFO_H
 
 #include <QtCore/qstring.h>
+#include <QtCore/QDate>
 
 QT_BEGIN_HEADER
 
@@ -59,6 +60,9 @@
     static QString licensedProducts();
 
     static QString buildKey();
+#ifndef QT_NO_DATESTRING
+    static QDate buildDate();
+#endif //QT_NO_DATESTRING
 
     enum LibraryLocation
     {