--- yar-0.99/yar/graphics.cpp.orig	2004-06-02 14:14:38.174071320 -0400
+++ yar-0.99/yar/graphics.cpp	2004-06-02 14:14:50.352219960 -0400
@@ -18,2 +18,3 @@
 #include "yar.hxx"
+#include <cmath>