--- track/Road_Segment.cc.orig	Mon Oct 27 10:15:10 2003
+++ track/Road_Segment.cc	Mon Nov 10 02:10:01 2003
@@ -21,6 +21,7 @@
 
 #include <GL/glut.h>
 
+#include <algorithm>
 #include <cmath>
 #include <cassert>