diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorIndexList.h b/unsupported/Eigen/CXX11/src/Tensor/TensorIndexList.h
index 7ff47673d..c94ed977e 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorIndexList.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorIndexList.h
@@ -124,18 +124,18 @@ struct tuple_coeff<0> {
     update_value(std::get<0>(t), value);
   }
   template <typename... T>
-  static constexpr bool value_known_statically(const DenseIndex i, const std::tuple<T...>& t) {
+  static constexpr bool value_known_statically(const DenseIndex i, const std::tuple<T...>&) {
     //    eigen_assert (i == 0);  // gcc fails to compile assertions in constexpr
     return is_compile_time_constant<typename std::tuple_element<0, std::tuple<T...> >::type>::value & (i == 0);
   }
 
   template <typename... T>
-  static constexpr bool values_up_to_known_statically(const std::tuple<T...>& t) {
+  static constexpr bool values_up_to_known_statically(const std::tuple<T...>&) {
     return is_compile_time_constant<typename std::tuple_element<0, std::tuple<T...> >::type>::value;
   }
 
   template <typename... T>
-  static constexpr bool values_up_to_statically_known_to_increase(const std::tuple<T...>& t) {
+  static constexpr bool values_up_to_statically_known_to_increase(const std::tuple<T...>&) {
     return true;
   }
 };
@@ -271,7 +271,7 @@ template <typename FirstType, typename... OtherTypes>
 struct index_statically_eq<IndexList<FirstType, OtherTypes...> > {
   constexpr bool operator() (const DenseIndex i, const DenseIndex value) const {
     return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
-        IndexList<FirstType, OtherTypes...>()[i] == value;
+        (IndexList<FirstType, OtherTypes...>()[i] == value);
   }
 };
 
@@ -279,7 +279,7 @@ template <typename FirstType, typename... OtherTypes>
 struct index_statically_eq<const IndexList<FirstType, OtherTypes...> > {
   constexpr bool operator() (const DenseIndex i, const DenseIndex value) const {
     return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
-        IndexList<FirstType, OtherTypes...>()[i] == value;
+        (IndexList<FirstType, OtherTypes...>()[i] == value);
   }
 };
 
@@ -294,7 +294,7 @@ template <typename FirstType, typename... OtherTypes>
 struct index_statically_ne<IndexList<FirstType, OtherTypes...> > {
   constexpr bool operator() (const DenseIndex i, const DenseIndex value) const {
     return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
-        IndexList<FirstType, OtherTypes...>()[i] != value;
+        (IndexList<FirstType, OtherTypes...>()[i] != value);
   }
 };
 
@@ -302,7 +302,7 @@ template <typename FirstType, typename... OtherTypes>
 struct index_statically_ne<const IndexList<FirstType, OtherTypes...> > {
   constexpr bool operator() (const DenseIndex i, const DenseIndex value) const {
     return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
-        IndexList<FirstType, OtherTypes...>()[i] != value;
+        (IndexList<FirstType, OtherTypes...>()[i] != value);
   }
 };
 
@@ -318,7 +318,7 @@ template <typename FirstType, typename... OtherTypes>
 struct index_statically_gt<IndexList<FirstType, OtherTypes...> > {
   constexpr bool operator() (const DenseIndex i, const DenseIndex value) const {
     return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
-        IndexList<FirstType, OtherTypes...>()[i] > value;
+        (IndexList<FirstType, OtherTypes...>()[i] > value);
   }
 };
 
@@ -326,7 +326,7 @@ template <typename FirstType, typename... OtherTypes>
 struct index_statically_gt<const IndexList<FirstType, OtherTypes...> > {
   constexpr bool operator() (const DenseIndex i, const DenseIndex value) const {
     return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
-        IndexList<FirstType, OtherTypes...>()[i] > value;
+        (IndexList<FirstType, OtherTypes...>()[i] > value);
   }
 };
 
@@ -341,7 +341,7 @@ template <typename FirstType, typename... OtherTypes>
 struct index_statically_lt<IndexList<FirstType, OtherTypes...> > {
   constexpr bool operator() (const DenseIndex i, const DenseIndex value) const {
     return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
-        IndexList<FirstType, OtherTypes...>()[i] < value;
+        (IndexList<FirstType, OtherTypes...>()[i] < value);
   }
 };
 
@@ -349,7 +349,7 @@ template <typename FirstType, typename... OtherTypes>
 struct index_statically_lt<const IndexList<FirstType, OtherTypes...> > {
   constexpr bool operator() (const DenseIndex i, const DenseIndex value) const {
     return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
-        IndexList<FirstType, OtherTypes...>()[i] < value;
+        (IndexList<FirstType, OtherTypes...>()[i] < value);
   }
 };
 
diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorInitializer.h b/unsupported/Eigen/CXX11/src/Tensor/TensorInitializer.h
index 6afef0fbb..4303e3536 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorInitializer.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorInitializer.h
@@ -55,18 +55,6 @@ struct Initializer<Derived, 1> {
   }
 };
 
-template <typename Derived>
-struct Initializer<Derived, Dynamic> {
-  typedef std::initializer_list<typename traits<Derived>::Scalar> InitList;
-
-  static void run(TensorEvaluator<Derived, DefaultDevice>& tensor,
-                  Eigen::array<typename traits<Derived>::Index, traits<Derived>::NumDimensions>* indices,
-                  const InitList& vals) {
-    // Static initialization not implemented for VarDims tensors.
-    eigen_assert(false);
-  }
-};
-
 template <typename Derived, int N>
 void initialize_tensor(TensorEvaluator<Derived, DefaultDevice>& tensor,
                        const typename Initializer<Derived, traits<Derived>::NumDimensions>::InitList& vals) {
diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorReduction.h b/unsupported/Eigen/CXX11/src/Tensor/TensorReduction.h
index c6a8ecb5d..83ba1df71 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorReduction.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorReduction.h
@@ -129,7 +129,7 @@ struct InnerMostDimReducer<Self, Op, true> {
 
 template <int DimIndex, typename Self, typename Op, bool vectorizable = (Self::InputPacketAccess & Op::PacketAccess)>
 struct InnerMostDimPreserver {
-  static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void reduce(const Self& self, typename Self::Index firstIndex, Op& reducer, typename Self::PacketReturnType* accum) {
+  static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void reduce(const Self&, typename Self::Index, Op&, typename Self::PacketReturnType*) {
     eigen_assert(false && "should never be called");
   }
 };