diff -r b72c6db6890b -r 5dc02b23752f src/corelib/xml/qxmlstream.cpp
--- a/src/corelib/xml/qxmlstream.cpp	Wed Jun 23 19:07:03 2010 +0300
+++ b/src/corelib/xml/qxmlstream.cpp	Tue Jul 06 15:10:48 2010 +0300
@@ -3003,8 +3003,7 @@
     deleteDevice = false;
 #ifndef QT_NO_TEXTCODEC
     codec = QTextCodec::codecForMib(106); // utf8
-    encoder = codec->makeEncoder();
-    encoder->state.flags |= QTextCodec::IgnoreHeader; // no byte order mark for utf8
+    encoder = codec->makeEncoder(QTextCodec::IgnoreHeader); // no byte order mark for utf8
 #endif
     inStartElement = inEmptyElement = false;
     wroteSomething = false;
@@ -3278,9 +3277,7 @@
     if (codec) {
         d->codec = codec;
         delete d->encoder;
-        d->encoder = codec->makeEncoder();
-        if (codec->mibEnum() == 106)
-            d->encoder->state.flags |= QTextCodec::IgnoreHeader; // no byte order mark for utf8
+        d->encoder = codec->makeEncoder(QTextCodec::IgnoreHeader); // no byte order mark for utf8
     }
 }