From 27b2732916ba73178ce58ab8fa5e0c9600b327fe Mon Sep 17 00:00:00 2001
From: Daniel James <daniel@calamity.org.uk>
Date: Sun, 21 Jan 2018 21:09:50 +0000
Subject: [PATCH] Make hash_value(monostate) inline

---
 include/boost/container_hash/hash/hash.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/boost/container_hash/hash/hash.hpp b/include/boost/container_hash/hash/hash.hpp
index 4b10870..1165977 100644
--- a/include/boost/container_hash/hash/hash.hpp
+++ b/include/boost/container_hash/hash/hash.hpp
@@ -517,7 +517,7 @@ namespace boost
 #endif
 
 #if BOOST_HASH_HAS_VARIANT
-    std::size_t hash_value(std::monostate) {
+    inline std::size_t hash_value(std::monostate) {
         return 0x87654321;
     }