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-rw-r--r--third-party/mapbox/optional.hpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/third-party/mapbox/optional.hpp b/third-party/mapbox/optional.hpp
index d84705c1ac..b9e682ab92 100644
--- a/third-party/mapbox/optional.hpp
+++ b/third-party/mapbox/optional.hpp
@@ -1,3 +1,8 @@
+//
+// Copyright (c) MapBox All rights reserved.
+// SPDX-License-Identifier: BSD-3-Clause
+//
+
#ifndef MAPBOX_UTIL_OPTIONAL_HPP
#define MAPBOX_UTIL_OPTIONAL_HPP