From e9cd4d10570c7e035489841ebadc9ce08df8a1a9 Mon Sep 17 00:00:00 2001
From: "Christoph M. Wintersteiger" <cwinter@microsoft.com>
Date: Fri, 24 Mar 2017 11:51:36 +0000
Subject: [PATCH] Build fix for systems that don't come with SSE4.1 support by
 default

---
 src/util/hwf.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/util/hwf.cpp b/src/util/hwf.cpp
index f84f7fe40..ac39db71a 100644
--- a/src/util/hwf.cpp
+++ b/src/util/hwf.cpp
@@ -52,8 +52,10 @@ Revision History:
 
 #ifdef USE_INTRINSICS
 #include <emmintrin.h>
+#ifdef __SSE4_1__
 #include <smmintrin.h>
 #endif
+#endif
 
 hwf_manager::hwf_manager() :
     m_mpz_manager(m_mpq_manager)