From 17a4e4c17479ea6ec05494b9cd9780a3927f6d44 Mon Sep 17 00:00:00 2001
From: Tal Regev <tal.regev@gmail.com>
Date: Sat, 10 Feb 2024 12:52:24 +0200
Subject: [PATCH] #if BOOST_VERSION < 108000

---
 gtsam/base/std_optional_serialization.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gtsam/base/std_optional_serialization.h b/gtsam/base/std_optional_serialization.h
index 5c250eab43..0ab778761f 100644
--- a/gtsam/base/std_optional_serialization.h
+++ b/gtsam/base/std_optional_serialization.h
@@ -11,6 +11,8 @@
 
 // Defined only if boost serialization is enabled
 #ifdef GTSAM_ENABLE_BOOST_SERIALIZATION
+// Only for old boost
+#if BOOST_VERSION < 108000
 #pragma once
 #include <optional>
 #include <boost/config.hpp>
@@ -99,3 +101,4 @@ void serialize(Archive& ar, std::optional<T>& t, const unsigned int version) {
 }  // namespace serialization
 }  // namespace boost
 #endif
+#endif