From 5d3ad699a63f2f034a26c6bb33e6041d6bf0674f Mon Sep 17 00:00:00 2001
From: Jose Luis Blanco <no@email>
Date: Mon, 31 May 2010 08:15:10 +0000
Subject: [PATCH] fixed duplicated definition warning

---
 modules/core/include/opencv2/core/internal.hpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/core/include/opencv2/core/internal.hpp b/modules/core/include/opencv2/core/internal.hpp
index 43107ea158..3e30f9d8c8 100644
--- a/modules/core/include/opencv2/core/internal.hpp
+++ b/modules/core/include/opencv2/core/internal.hpp
@@ -294,7 +294,9 @@ CV_INLINE IppiSize ippiSize(int width, int height)
     #define CV_BIG_UINT(n)  n##ULL
 #endif
 
+#ifndef CV_IMPL
 #define CV_IMPL CV_EXTERN_C
+#endif
 
 #define CV_DBG_BREAK() { volatile int* crashMe = 0; *crashMe = 0; }