Update doc to make it clear that only SuperLU 4.x is supported

2 files changed, 5 insertions, 1 deletions

diff --git a/Eigen/SuperLUSupport b/Eigen/SuperLUSupport
index 0ae9f3fdf..113f58ee5 100644
--- a/Eigen/SuperLUSupport
+++ b/Eigen/SuperLUSupport
@@ -43,6 +43,8 @@ namespace Eigen { struct SluMatrix; }
   * - class SuperLU: a supernodal sequential LU factorization.
   * - class SuperILU: a supernodal sequential incomplete LU factorization (to be used as a preconditioner for iterative methods).
   *
+  * \warning This wrapper is only for the 4.x versions of SuperLU. The 3.x and 5.x versions are not supported.
+  *
   * \warning When including this module, you have to use SUPERLU_EMPTY instead of EMPTY which is no longer defined because it is too polluting.
   *
   * \code
diff --git a/Eigen/src/SuperLUSupport/SuperLUSupport.h b/Eigen/src/SuperLUSupport/SuperLUSupport.h
index b20da37f7..fd2b26581 100644
--- a/Eigen/src/SuperLUSupport/SuperLUSupport.h
+++ b/Eigen/src/SuperLUSupport/SuperLUSupport.h
@@ -452,6 +452,8 @@ class SuperLUBase : public SparseSolverBase<Derived>
   *
   * \tparam _MatrixType the type of the sparse matrix A, it must be a SparseMatrix<>
   *
+  * \warning This class is only for the 4.x versions of SuperLU. The 3.x and 5.x versions are not supported.
+  *
   * \implsparsesolverconcept
   *
   * \sa \ref TutorialSparseDirectSolvers
@@ -801,7 +803,7 @@ typename SuperLU<MatrixType>::Scalar SuperLU<MatrixType>::determinant() const
   * This class allows to solve for an approximate solution of A.X = B sparse linear problems via an incomplete LU factorization
   * using the SuperLU library. This class is aimed to be used as a preconditioner of the iterative linear solvers.
   *
-  * \warning This class requires SuperLU 4 or later.
+  * \warning This class is only for the 4.x versions of SuperLU. The 3.x and 5.x versions are not supported.
   *
   * \tparam _MatrixType the type of the sparse matrix A, it must be a SparseMatrix<>
   *