From f447eea4de9cab5de295c717d35824cf92b9f322 Mon Sep 17 00:00:00 2001
From: Michal Krol <michal@tungstengraphics.com>
Date: Wed, 12 Nov 2008 17:14:07 +0100
Subject: [PATCH] util: Add log2() definition for MSC.

---
 src/gallium/auxiliary/util/u_math.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h
index be7303e5503..c7bbebc4286 100644
--- a/src/gallium/auxiliary/util/u_math.h
+++ b/src/gallium/auxiliary/util/u_math.h
@@ -161,6 +161,11 @@ static INLINE float logf( float f )
    return (float) log( (double) f );
 }
 
+static INLINE double log2( double x )
+{
+   return log( x ) / log( 2.0 );
+}
+
 #else
 /* Work-around an extra semi-colon in VS 2005 logf definition */
 #ifdef logf
-- 
2.30.2