Avoid warning about unused variable in configure_tapeless_mode

diff --git a/include/deal.II/differentiation/ad/ad_drivers.h b/include/deal.II/differentiation/ad/ad_drivers.h
index d5711c6ebdf7c854fcf94b2adf4c913c47005d2d..fa32e3eb68d503d1dc29e9ccd1f6f66a78e2b334 100644 (file)
--- a/include/deal.II/differentiation/ad/ad_drivers.h
+++ b/include/deal.II/differentiation/ad/ad_drivers.h
@@ -1273,7 +1273,7 @@ namespace Differentiation
       template <typename ADNumberType>
       typename std::enable_if<ADNumberTraits<ADNumberType>::type_code ==
                               NumberTypes::adolc_tapeless>::type
-      configure_tapeless_mode(const unsigned int n_directional_derivatives)
+      configure_tapeless_mode(const unsigned int /*n_directional_derivatives*/)
       {
         AssertThrow(false, ExcRequiresAdolC());
       }