From c7e33e50023e052995cb75208ba7f9666bcf4534 Mon Sep 17 00:00:00 2001
From: Pavel Tvrdik <pawel.tvrdik@gmail.com>
Date: Wed, 1 Jun 2016 16:34:21 +0200
Subject: [PATCH] Fix double define of U64() macro

---
 lib/birdlib.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/birdlib.h b/lib/birdlib.h
index 78df81d68..11d44c7b1 100644
--- a/lib/birdlib.h
+++ b/lib/birdlib.h
@@ -30,7 +30,9 @@
 #define MAX(a,b) MAX_(a,b)
 #endif
 
+#ifndef U64
 #define U64(c) UINT64_C(c)
+#endif
 #define ABS(a)   ((a)>=0 ? (a) : -(a))
 #define DELTA(a,b) (((a)>=(b))?(a)-(b):(b)-(a))
 #define ARRAY_SIZE(a) (sizeof(a)/sizeof(*(a)))
-- 
2.47.2