From f847ddb64dfe7d0e84354b30b7551d83fe3463c9 Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Tue, 24 Feb 2015 15:11:45 -0700
Subject: mesa: move signbit() macro to c99_math.h

Reviewed-by: Matt Turner <mattst88@gmail.com>
---
 include/c99_math.h | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'include')

diff --git a/include/c99_math.h b/include/c99_math.h
index 147bceed96d..9e31d0693b6 100644
--- a/include/c99_math.h
+++ b/include/c99_math.h
@@ -202,4 +202,12 @@ llrintf(float f)
 #endif /* C99 */
 
 
+/*
+ * signbit() is a macro on Linux.  Not available on Windows.
+ */
+#ifndef signbit
+#define signbit(x) ((x) < 0.0f)
+#endif
+
+
 #endif /* #define _C99_MATH_H_ */
-- 
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