https://bugs.gentoo.org/671724

From 12726cda009a855073b9bedbdce57b6ce7763da2 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@pdimov.com>
Date: Sat, 2 Dec 2017 04:10:46 +0200
Subject: [PATCH] Add #include <boost/next_prior.hpp>; no longer in utility.hpp

---
 include/boost/lockfree/spsc_queue.hpp | 1 +
 1 file changed, 1 insertion(+)

--- a/boost/lockfree/spsc_queue.hpp
+++ b/boost/lockfree/spsc_queue.hpp
@@ -17,6 +17,7 @@
 #include <boost/assert.hpp>
 #include <boost/static_assert.hpp>
 #include <boost/utility.hpp>
+#include <boost/next_prior.hpp>
 #include <boost/utility/enable_if.hpp>
 #include <boost/config.hpp> // for BOOST_LIKELY
 
-- 
2.19.2