From 1d8729a7aaaf5013c17821a0927d277c1aac4a3b Mon Sep 17 00:00:00 2001
From: Andrey Kamaev <andrey.kamaev@itseez.com>
Date: Tue, 23 Oct 2012 12:52:54 +0400
Subject: [PATCH] Don't use _interlockedExchangeAdd in case of GNU compiler

---
 modules/core/src/system.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/core/src/system.cpp b/modules/core/src/system.cpp
index a4e4fc6e9c..d463a84ef3 100644
--- a/modules/core/src/system.cpp
+++ b/modules/core/src/system.cpp
@@ -806,6 +806,7 @@ struct Mutex::Impl
     int refcount;
 };
 
+#ifndef __GNUC__
 int _interlockedExchangeAdd(int* addr, int delta)
 {
 #if defined _MSC_VER && _MSC_VER >= 1500
@@ -814,6 +815,7 @@ int _interlockedExchangeAdd(int* addr, int delta)
     return (int)InterlockedExchangeAdd((long volatile*)addr, delta);
 #endif
 }
+#endif // __GNUC__
 
 #elif defined __APPLE__