From b01b59463196ec0ffb95903105b6f7bb503c0921 Mon Sep 17 00:00:00 2001
From: Jean-Charles Lefebvre <polyvertex@gmail.com>
Date: Fri, 30 Dec 2016 08:52:11 +0100
Subject: [PATCH] Forward declaration of FormatSpec

---
 fmt/format.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fmt/format.h b/fmt/format.h
index 8d3e694d..58b416be 100644
--- a/fmt/format.h
+++ b/fmt/format.h
@@ -431,6 +431,8 @@ typedef BasicWriter<wchar_t> WWriter;
 template <typename Char>
 class ArgFormatter;
 
+struct FormatSpec;
+
 template <typename Impl, typename Char, typename Spec = fmt::FormatSpec>
 class BasicPrintfArgFormatter;