From da61afa7388f1ce50ef612b89aba2302a052a3bb Mon Sep 17 00:00:00 2001
From: Ian Romanick <ian.d.romanick@intel.com>
Date: Wed, 24 Nov 2010 14:03:57 -0800
Subject: glsl: Use M_LOG2E constant instead of calling log2

---
 src/mesa/main/compiler.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/mesa/main/compiler.h')

diff --git a/src/mesa/main/compiler.h b/src/mesa/main/compiler.h
index 800eb83900..5557a3b5cb 100644
--- a/src/mesa/main/compiler.h
+++ b/src/mesa/main/compiler.h
@@ -358,6 +358,10 @@ static INLINE GLuint CPU_TO_LE32(GLuint x)
 #define M_E (2.7182818284590452354)
 #endif
 
+#ifndef M_LOG2E
+#define M_LOG2E     (1.4426950408889634074)
+#endif
+
 #ifndef ONE_DIV_LN2
 #define ONE_DIV_LN2 (1.442695040888963456)
 #endif
-- 
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