From ab946208e51df556d237d67e23e845573374b4a7 Mon Sep 17 00:00:00 2001
From: 0xFEEDC0DE64 <daniel@brunner.ninja>
Date: Thu, 8 Sep 2022 21:35:21 +0200
Subject: [PATCH] Fix compiling in c++23

---
 src/changevaluedisplay.h | 1 +
 src/menudisplay.h        | 1 +
 2 files changed, 2 insertions(+)

diff --git a/src/changevaluedisplay.h b/src/changevaluedisplay.h
index 35bb84d..e4315cd 100644
--- a/src/changevaluedisplay.h
+++ b/src/changevaluedisplay.h
@@ -2,6 +2,7 @@
 
 // system includes
 #include <type_traits>
+#include <optional>
 
 // 3rdparty lib includes
 #include <espchrono.h>
diff --git a/src/menudisplay.h b/src/menudisplay.h
index f156512..4559a12 100644
--- a/src/menudisplay.h
+++ b/src/menudisplay.h
@@ -8,6 +8,7 @@
 #include <functional>
 #include <cassert>
 #include <memory>
+#include <optional>
 
 // 3rdparty lib includes
 #include <espchrono.h>