From a0be89d203994d51181de0f5f96c3e9093241027 Mon Sep 17 00:00:00 2001
From: "Ralf W. Grosse-Kunstleve" <rwgk@google.com>
Date: Sun, 25 Aug 2024 09:14:35 -0700
Subject: [PATCH] Apply suggestion by @iwanders under PR #5334

---
 include/pybind11/detail/struct_smart_holder.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/pybind11/detail/struct_smart_holder.h b/include/pybind11/detail/struct_smart_holder.h
index 401a6fd1b2..75bae7e564 100644
--- a/include/pybind11/detail/struct_smart_holder.h
+++ b/include/pybind11/detail/struct_smart_holder.h
@@ -234,7 +234,7 @@ struct smart_holder {
     // Caller is responsible for precondition: ensure_compatible_rtti_uqp_del<T, D>() must succeed.
     template <typename T, typename D>
     std::unique_ptr<D> extract_deleter(const char *context) const {
-        auto *gd = std::get_deleter<guarded_delete>(vptr);
+        const auto *gd = std::get_deleter<guarded_delete>(vptr);
         if (gd && gd->use_del_fun) {
             const auto &custom_deleter_ptr = gd->del_fun.template target<custom_deleter<T, D>>();
             if (custom_deleter_ptr == nullptr) {