From 75aeca390e31832ebcb23385976ee6e82e572a8a Mon Sep 17 00:00:00 2001
From: Martin Valgur <martin.valgur@gmail.com>
Date: Thu, 15 Jun 2023 18:40:39 +0300
Subject: [PATCH] Fix an invalid include in DsfTrackGenerator.h

Fixes incorrect header being included, which also broke C++11 compatibility.
---
 gtsam/sfm/DsfTrackGenerator.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gtsam/sfm/DsfTrackGenerator.h b/gtsam/sfm/DsfTrackGenerator.h
index 14ec2302db..74d45207e7 100644
--- a/gtsam/sfm/DsfTrackGenerator.h
+++ b/gtsam/sfm/DsfTrackGenerator.h
@@ -20,9 +20,10 @@
 #include <gtsam/base/DSFMap.h>
 #include <gtsam/sfm/SfmTrack.h>
 
+#include <boost/optional.hpp>
+
 #include <Eigen/Core>
 #include <map>
-#include <optional>
 #include <vector>
 
 namespace gtsam {