From 78f1044c684eaf660cfb2d1bbdfd6c4a84087db6 Mon Sep 17 00:00:00 2001
From: Niall Douglas <spam@nowhere>
Date: Sat, 2 Aug 2014 21:38:31 +0100
Subject: [PATCH] The previous mingw32 fix unfortunately broke mingw-w64, so
 that is now fixed too.

---
 include/boost/thread/win32/thread_primitives.hpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/boost/thread/win32/thread_primitives.hpp b/include/boost/thread/win32/thread_primitives.hpp
index fc22ed48..c8e2e7df 100644
--- a/include/boost/thread/win32/thread_primitives.hpp
+++ b/include/boost/thread/win32/thread_primitives.hpp
@@ -179,6 +179,8 @@ namespace boost
 #ifdef _MSC_VER
                 long _InterlockedCompareExchange(long volatile *, long, long);
 #pragma intrinsic(_InterlockedCompareExchange)
+#elif defined(__MINGW64_VERSION_MAJOR)
+                long _InterlockedCompareExchange(long volatile *, long, long);
 #else
                 // Mingw doesn't provide intrinsics
 #define _InterlockedCompareExchange InterlockedCompareExchange