From 81a06d2c9c3ce081043e1eb948b65014f1b1786a Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Wed, 4 Oct 2017 21:48:14 +1100
Subject: lib/libm: Remove implementation of log2f, use MP_NEED_LOG2 instead.

---
 lib/libm/math.c | 10 ----------
 1 file changed, 10 deletions(-)

(limited to 'lib/libm/math.c')

diff --git a/lib/libm/math.c b/lib/libm/math.c
index 5e00740d10..6b65202cf0 100644
--- a/lib/libm/math.c
+++ b/lib/libm/math.c
@@ -48,16 +48,6 @@ float copysignf(float x, float y) {
 }
 #endif
 
-// some compilers define log2f in terms of logf
-#ifdef log2f
-#undef log2f
-#endif
-// some compilers have _M_LN2 defined in math.h, some don't
-#ifndef _M_LN2
-#define _M_LN2 (0.69314718055994530942)
-#endif
-float log2f(float x) { return logf(x) / (float)_M_LN2; }
-
 static const float _M_LN10 = 2.30258509299404; // 0x40135d8e
 float log10f(float x) { return logf(x) / (float)_M_LN10; }
 
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