--- include/RangeMap.h~	2004-04-22 20:34:13.729541096 +0300
+++ include/RangeMap.h	2004-04-22 20:31:48.473049702 +0300
@@ -8,6 +8,7 @@
 #include "Boolean.h"
 #include "ISet.h"
 #include "types.h"
+#include "constant.h"
 #include <stddef.h>
 
 #ifdef SP_NAMESPACE
