From e5c69d84ab5db3e06170b8eedec1d87841c7fb22 Mon Sep 17 00:00:00 2001
From: Howard Hinnant <howard.hinnant@gmail.com>
Date: Mon, 9 Apr 2018 11:01:58 -0400
Subject: [PATCH] Fix constexpr issue for VS2015

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

diff --git a/include/date/date.h b/include/date/date.h
index 69c1f88..a9620cb 100644
--- a/include/date/date.h
+++ b/include/date/date.h
@@ -4316,7 +4316,7 @@ operator<<(std::basic_ostream<CharT, Traits>& os, const local_time<Duration>& ut
 
 // to_stream
 
-constexpr year nanyear{-32768};
+CONSTDATA year nanyear{-32768};
 
 template <class Duration>
 struct fields