Document that compute_aspect_ratio_of_cells() requires LAPACK.

diff --git a/include/deal.II/grid/grid_tools.h b/include/deal.II/grid/grid_tools.h
index 3d1bc3fbdd51c9f96e9975367e96e9b90cace229..fcfb6c94d8a33de777846ed185d767d12d705fc9 100644 (file)
--- a/include/deal.II/grid/grid_tools.h
+++ b/include/deal.II/grid/grid_tools.h
@@ -344,6 +344,9 @@ namespace GridTools
    * n_active_cells but the aspect ratio is only computed for the cells that
    * are locally owned and placed at index CellAccessor::active_cell_index(),
    * respectively. All other values are set to 0.
+   *
+   * @note This function can only be used if deal.II was configured with
+   * support for LAPACK.
    */
   template <int dim>
   Vector<double>

diff --git a/tests/mappings/mapping_q_cache_09.output b/tests/mappings/mapping_q_cache_09.with_lapack=true.output
similarity index 100%
rename from tests/mappings/mapping_q_cache_09.output
rename to tests/mappings/mapping_q_cache_09.with_lapack=true.output