allow lambda functiosn in Dirichlet BC

AMDiS/src/DirichletBC.cc

@@ -72,6 +72,7 @@ namespace AMDiS {
   }
   
   
+#if __cplusplus > 199711L
   // c++11 std::function of lambda-functions
   void DirichletBC<_value_by_function>::fillBoundaryCondition(
 	  DOFVectorBase<double>* vector,
@@ -91,7 +92,7 @@ namespace AMDiS {
 	(*vector)[dofIndices[i]] = value;
       }
   }
-
+#endif
   
   void DirichletBC<_value_by_abstractfunction>::fillBoundaryCondition(
 	  DOFVectorBase<double>* vector,