--- libsrc/eclib/points.h.orig 2016-07-20 05:33:48.000000000 -0600
+++ libsrc/eclib/points.h 2016-10-20 14:34:29.093289919 -0600
@@ -29,6 +29,8 @@
#include "curve.h"
+#undef iszero
+
//
// class for points on elliptic curves