--- boost/dll/detail/posix/program_location_impl.hpp.orig	2019-04-09 21:35:32.000000000 +0200
+++ boost/dll/detail/posix/program_location_impl.hpp	2020-06-30 21:15:56.084455000 +0200
@@ -53,7 +53,7 @@
     }
 }}} // namespace boost::dll::detail
 
-#elif BOOST_OS_BSD_FREE
+#elif BOOST_OS_BSD_FREE || BOOST_OS_BSD_SUX
 
 #include <sys/types.h>
 #include <sys/sysctl.h>