Index: trunk/MagicSoft/Mars/mbase/MSpline3.cc
===================================================================
--- trunk/MagicSoft/Mars/mbase/MSpline3.cc	(revision 9442)
+++ trunk/MagicSoft/Mars/mbase/MSpline3.cc	(revision 9450)
@@ -37,4 +37,5 @@
 
 #include <TF1.h>
+#include <TMath.h>
 
 #include "MArrayD.h"