Fix problem on Windows.CVS: ----------------------------------------------------------------------

git-svn-id: http://root.cern.ch/svn/root/trunk@17646 27541ba8-7e3a-0410-8455-c3a389f83636

tmva/src/RuleFitParams.cxx

-// @(#)root/tmva $Id: RuleFitParams.cxx,v 1.7 2006/11/20 15:35:28 brun Exp $
+// @(#)root/tmva $Id: RuleFitParams.cxx,v 1.8 2006/11/23 17:43:39 rdm Exp $
 // Author: Andreas Hoecker, Joerg Stelzer, Fredrik Tegenfeldt, Helge Voss
 
 /**********************************************************************************
@@ -28,6 +28,7 @@
 #include <algorithm>
 #include <numeric>
 
+#include "TMath.h"
 #include "TMVA/Timer.h"
 #include "TMVA/RuleFitParams.h"
 #include "TMVA/RuleFit.h"