diff --git a/Eigen/src/Array/BooleanRedux.h b/Eigen/src/Array/BooleanRedux.h
index b9de54029..6f6a46a8f 100644
--- a/Eigen/src/Array/BooleanRedux.h
+++ b/Eigen/src/Array/BooleanRedux.h
@@ -89,10 +89,12 @@ struct ei_any_unroller<Derived, Dynamic>
 template<typename Derived>
 inline bool DenseBase<Derived>::all() const
 {
-  const bool unroll = SizeAtCompileTime != Dynamic
-                   && CoeffReadCost != Dynamic
-                   && NumTraits<Scalar>::AddCost != Dynamic
-                   && SizeAtCompileTime * (CoeffReadCost + NumTraits<Scalar>::AddCost) <= EIGEN_UNROLLING_LIMIT;
+  enum {
+    unroll = SizeAtCompileTime != Dynamic
+          && CoeffReadCost != Dynamic
+          && NumTraits<Scalar>::AddCost != Dynamic
+          && SizeAtCompileTime * (CoeffReadCost + NumTraits<Scalar>::AddCost) <= EIGEN_UNROLLING_LIMIT
+  };
   if(unroll)
     return ei_all_unroller<Derived,
                            unroll ? int(SizeAtCompileTime) : Dynamic
@@ -115,10 +117,12 @@ inline bool DenseBase<Derived>::all() const
 template<typename Derived>
 inline bool DenseBase<Derived>::any() const
 {
-  const bool unroll = SizeAtCompileTime != Dynamic
-                   && CoeffReadCost != Dynamic
-                   && NumTraits<Scalar>::AddCost != Dynamic
-                   && SizeAtCompileTime * (CoeffReadCost + NumTraits<Scalar>::AddCost) <= EIGEN_UNROLLING_LIMIT;
+  enum {
+    unroll = SizeAtCompileTime != Dynamic
+          && CoeffReadCost != Dynamic
+          && NumTraits<Scalar>::AddCost != Dynamic
+          && SizeAtCompileTime * (CoeffReadCost + NumTraits<Scalar>::AddCost) <= EIGEN_UNROLLING_LIMIT
+  };
   if(unroll)
     return ei_any_unroller<Derived,
                            unroll ? int(SizeAtCompileTime) : Dynamic