Merge topic 'export_DataSetBuilderExplicitIterative'

4f42a69d

 Make sure DataSetBuilderExplicitIterative is usable by vtkm consumers

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Allison Vacanti <allison.vacanti@kitware.com>
Merge-request: !1248

vtkm/cont/DataSetBuilderExplicit.h

@@ -313,7 +313,7 @@ inline VTKM_CONT vtkm::cont::DataSet DataSetBuilderExplicit::BuildDataSet(
   return dataSet;
 }
 
-class DataSetBuilderExplicitIterative
+class VTKM_CONT_EXPORT DataSetBuilderExplicitIterative
 {
 public:
   VTKM_CONT