Add boost version guard

dellaert · dellaert · commit 6337241cc411 · 2022-02-12T11:44:15.000-05:00
diff --git a/gtsam/base/FastSet.h b/gtsam/base/FastSet.h
@@ -18,7 +18,9 @@
 
 #pragma once
 
+#if BOOST_VERSION >= 107400
 #include <boost/serialization/library_version_type.hpp>
+#endif
 #include <boost/serialization/nvp.hpp>
 #include <boost/serialization/set.hpp>
 #include <gtsam/base/FastDefaultAllocator.h>
