From 1f3e72bf382016f7febe9b98da1e0d1949852347 Mon Sep 17 00:00:00 2001
From: Nicolas Mellado <nmellado0@gmail.com>
Date: Tue, 9 Jan 2024 12:12:43 +0100
Subject: [PATCH] Add missing include directive (optional)

---
 src/poncaTypes.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/poncaTypes.h b/src/poncaTypes.h
index d518982..11b90fe 100644
--- a/src/poncaTypes.h
+++ b/src/poncaTypes.h
@@ -2,6 +2,7 @@
 
 #include <Ponca/Fitting>
 
+#include <optional>
 
 class DataPoint
 {