From 1569776a52b2cce5eb8f0b91c4a656175cf8de20 Mon Sep 17 00:00:00 2001
From: Leon Klingele <git@leonklingele.de>
Date: Sun, 31 Mar 2019 18:39:25 +0200
Subject: [PATCH] Add missing include

---
 contrib/epee/include/span.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/contrib/epee/include/span.h b/contrib/epee/include/span.h
index 19720ea8b..e100452ca 100644
--- a/contrib/epee/include/span.h
+++ b/contrib/epee/include/span.h
@@ -31,6 +31,7 @@
 #include <algorithm>
 #include <cstdint>
 #include <memory>
+#include <string>
 #include <type_traits>
 
 namespace epee