diff -r 56cd8111b7f7 -r 41300fa6a67c src/gui/graphicsview/qgridlayoutengine.cpp
--- a/src/gui/graphicsview/qgridlayoutengine.cpp	Tue Jan 26 12:42:25 2010 +0200
+++ b/src/gui/graphicsview/qgridlayoutengine.cpp	Tue Feb 02 00:43:10 2010 +0200
@@ -51,6 +51,7 @@
 #include "qvarlengtharray.h"
 
 #include <QtDebug>
+#include <QtCore/qmath.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -70,7 +71,7 @@
 static qreal growthFactorBelowPreferredSize(qreal desired, qreal sumAvailable, qreal sumDesired)
 {
     Q_ASSERT(sumDesired != 0.0);
-    return desired * ::pow(sumAvailable / sumDesired, desired / sumDesired);
+    return desired * qPow(sumAvailable / sumDesired, desired / sumDesired);
 }
 
 static qreal fixedDescent(qreal descent, qreal ascent, qreal targetSize)