1 files changed, 1 insertions, 1 deletions
diff --git a/gdb/eval.c b/gdb/eval.c
index b859e82..3358b0d 100644
--- a/gdb/eval.c
+++ b/gdb/eval.c
@@ -102,7 +102,7 @@ expression::uses_objfile (struct objfile *objfile) const
 struct value *
 expression::evaluate (struct type *expect_type, enum noside noside)
 {
-  gdb::optional<enable_thread_stack_temporaries> stack_temporaries;
+  std::optional<enable_thread_stack_temporaries> stack_temporaries;
   if (target_has_execution () && inferior_ptid != null_ptid
       && language_defn->la_language == language_cplus
       && !thread_stack_temporaries_enabled_p (inferior_thread ()))