Fix compiler warning with clang-16

diff --git a/source/grid/grid_tools.cc b/source/grid/grid_tools.cc
index e3efdb2e1ca9eb1459fd1e9913e24dcd26824ac3..ef9414da49649c18b5f4ce007d6086c21b6e0ffa 100644 (file)
--- a/source/grid/grid_tools.cc
+++ b/source/grid/grid_tools.cc
@@ -2885,6 +2885,7 @@ namespace GridTools
                            return cell_marked(cell);
                          });
     };
+    (void)any_cell_marked;
 
     while (found_cell == false)
       {