From 5d6c744d3878046de029ee822056dc731cc0e5f1 Mon Sep 17 00:00:00 2001
From: Phil Nash <github@philnash.me>
Date: Fri, 10 Mar 2017 18:38:52 +0000
Subject: [PATCH] Qualified std::tolower in Clara. Fixes #543

---
 include/external/clara.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/external/clara.h b/include/external/clara.h
index a999a37b..abf026f7 100644
--- a/include/external/clara.h
+++ b/include/external/clara.h
@@ -397,7 +397,7 @@ namespace Clara {
             _dest = _source;
         }
         char toLowerCh(char c) {
-            return static_cast<char>( ::tolower( c ) );
+            return static_cast<char>( std::tolower( c ) );
         }
         inline void convertInto( std::string const& _source, bool& _dest ) {
             std::string sourceLC = _source;