From 8e80de84b580675d30bd780d6066592c277b3576 Mon Sep 17 00:00:00 2001
From: Otto Moerbeek <otto.moerbeek@open-xchange.com>
Date: Mon, 23 Mar 2020 08:12:33 +0100
Subject: [PATCH] Proper include guard for OpenBSD and FreeBSD: std::string_ref
 is available there.

---
 ext/lmdb-safe/lmdb-safe.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/lmdb-safe/lmdb-safe.hh b/ext/lmdb-safe/lmdb-safe.hh
index e5fe14a1de..056a6cd823 100644
--- a/ext/lmdb-safe/lmdb-safe.hh
+++ b/ext/lmdb-safe/lmdb-safe.hh
@@ -13,7 +13,7 @@
 #include <algorithm>
 
 // apple compiler somehow has string_view even in c++11!
-#if __cplusplus < 201703L && !defined(__APPLE__)
+#if __cplusplus < 201703L && !defined(__APPLE__) && !defined(__OpenBSD__) && !defined(__FreeBSD__)
 #include <boost/version.hpp>
 #if BOOST_VERSION >= 106100
 #include <boost/utility/string_view.hpp>
-- 
2.39.2