Index: /issm/trunk-jpl/src/c/shared/Numerics/XZvectorsToCoordinateSystem.cpp
===================================================================
--- /issm/trunk-jpl/src/c/shared/Numerics/XZvectorsToCoordinateSystem.cpp	(revision 12151)
+++ /issm/trunk-jpl/src/c/shared/Numerics/XZvectorsToCoordinateSystem.cpp	(revision 12152)
@@ -2,4 +2,5 @@
 #include "../../include/include.h"
 #include "../Exceptions/exceptions.h"
+#include "./isnan.h"
 #include <math.h>