diff -r 56cd8111b7f7 -r 41300fa6a67c src/corelib/tools/qbytearray.cpp
--- a/src/corelib/tools/qbytearray.cpp	Tue Jan 26 12:42:25 2010 +0200
+++ b/src/corelib/tools/qbytearray.cpp	Tue Feb 02 00:43:10 2010 +0200
@@ -48,9 +48,7 @@
 #include "qlocale_p.h"
 #include "qunicodetables_p.h"
 #include "qscopedpointer.h"
-#ifndef QT_NO_DATASTREAM
 #include <qdatastream.h>
-#endif
 
 #ifndef QT_NO_COMPRESS
 #include <zlib.h>
@@ -2640,7 +2638,7 @@
     d->ref.ref();
 }
 
-#ifndef QT_NO_DATASTREAM
+#if !defined(QT_NO_DATASTREAM) || (defined(QT_BOOTSTRAPPED) && !defined(QT_BUILD_QMAKE))
 
 /*! \relates QByteArray