--- src/vega/grid.cc.orig	Wed Sep 15 16:21:00 2004
+++ src/vega/grid.cc	Wed Sep 15 16:21:47 2004
@@ -15,6 +15,7 @@
 // Copyright Liam Girdwood 2003
 
 
+#include <math.h>
 #include "grid.hh"
 
 namespace Vega