From e7e51166f562cae99d50e2f8d677f58ee01a79f0 Mon Sep 17 00:00:00 2001
From: Felix Ruess <felix.ruess@gmail.com>
Date: Wed, 11 Apr 2012 14:09:57 +0200
Subject: [PATCH] wrap define of ABS in ifndef in std.h

---
 sw/include/std.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sw/include/std.h b/sw/include/std.h
index 3def069a3e..e99084da02 100644
--- a/sw/include/std.h
+++ b/sw/include/std.h
@@ -86,7 +86,9 @@ typedef uint8_t unit_t;
 #define Min(x,y) (x < y ? x : y)
 #define Max(x,y) (x > y ? x : y)
 
+#ifndef ABS
 #define ABS(val) ((val) < 0 ? -(val) : (val))
+#endif
 
 #define Bound(_x, _min, _max) { if (_x > _max) _x = _max; else if (_x < _min) _x = _min; }
 #define BoundAbs(_x, _max) Bound(_x, -(_max), (_max))