additional includes

AMDiS/src/MathFunctions.h

 #ifndef AMDIS_MATHFUNCTIONS_H
 #define AMDIS_MATHFUNCTIONS_H
+
+#include "Global.h"
+
 namespace AMDiS {
   //converts signed distance to phasefield
   inline double Phi1(double r, double eps) { return 0.5*(1-tanh(3*r/eps)); }
@@ -17,11 +20,11 @@ namespace AMDiS {
 
   //convert Phi1 to r
   inline double Phi1ToR(double p1, double eps) {
-	return eps/3.0 * atanh( std::max(-1+1.e-14, std::min(1-1.e-14, 1-2*p1)) );
+	return eps/3.0 * atanh( max(-1+1.e-14, min(1-1.e-14, 1-2*p1)) );
   }
   //convert Phi2 to r
   inline double Phi2ToR(double p2, double eps) {
-	return eps/3.0 * atanh( std::max(-1+1.e-14, std::min(1-1.e-14, 1+2*p2)) );
+	return eps/3.0 * atanh( max(-1+1.e-14, min(1-1.e-14, 1+2*p2)) );
   }
 }
 #endif