From 30ee9868e656b28ea912a8abefa60fd2ed3ba5a3 Mon Sep 17 00:00:00 2001
From: Nicolas Wack <wackou@gmail.com>
Date: Sat, 22 Feb 2014 19:27:53 +0100
Subject: [PATCH] Fix compilation on mac os with clang/libc++

---
 include/fc/crypto/sha256.hpp | 2 --
 1 file changed, 2 deletions(-)

diff --git a/include/fc/crypto/sha256.hpp b/include/fc/crypto/sha256.hpp
index 00c726b..af0e6b2 100644
--- a/include/fc/crypto/sha256.hpp
+++ b/include/fc/crypto/sha256.hpp
@@ -83,8 +83,6 @@ class sha256
 } // fc
 namespace std
 {
-    template<typename T> struct hash;
-
     template<>
     struct hash<fc::sha256>
     {