instantiate uninitialied tensor struct

diff --git a/include/deal.II/base/tensor.h b/include/deal.II/base/tensor.h
index 7443d72064b883d6b95901da7367352f725a3548..cc7633a3ce693c79097bc2a77df8e3a133e79fe4 100644 (file)
--- a/include/deal.II/base/tensor.h
+++ b/include/deal.II/base/tensor.h
@@ -1138,6 +1138,9 @@ namespace internal
       static ArrayElementType value;
     };
 
+    template <typename Type>
+    Type Uninitialized<Type>::value;
+
     template <typename ArrayElementType>
     DEAL_II_CONSTEXPR inline ArrayElementType &
     subscript(ArrayElementType *,