File JEGA.patch of Package dakota

--- packages/external/JEGA/Utilities/src/DiscreteDesignVariableNature.cpp.old	2019-02-26 19:15:22.371387730 +0100
+++ packages/external/JEGA/Utilities/src/DiscreteDesignVariableNature.cpp	2019-02-26 19:15:27.923415570 +0100
@@ -60,6 +60,7 @@
 #include <../Utilities/include/JEGAConfig.hpp>
 
 #include <cfloat>
+#include <cmath>
 #include <limits>
 #include <algorithm>
 #include <functional>