From 1bb22a0a0b77370499a680a1fa4c964e1a10909b Mon Sep 17 00:00:00 2001
From: Grissiom <chaos.proton@gmail.com>
Date: Wed, 9 Jan 2013 21:37:41 +0800
Subject: [PATCH] fix math.h

Declare sin/cos and M_PI in math.h.
---
 components/libc/minilibc/math.c | 1 -
 components/libc/minilibc/math.h | 9 +++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/components/libc/minilibc/math.c b/components/libc/minilibc/math.c
index bcba6051a8..27315a428c 100644
--- a/components/libc/minilibc/math.c
+++ b/components/libc/minilibc/math.c
@@ -9,7 +9,6 @@
  */
 
 #define PRECISION 9
-#define M_PI 3.141592653589793238462643
 
 static double cos_off_tbl[] = {0.0, -M_PI/2., 0, -M_PI/2.};
 static double cos_sign_tbl[] = {1,-1,-1,1};
diff --git a/components/libc/minilibc/math.h b/components/libc/minilibc/math.h
index e2ce6f8e71..b436eb08b5 100644
--- a/components/libc/minilibc/math.h
+++ b/components/libc/minilibc/math.h
@@ -1,4 +1,9 @@
-#ifndef __STDIO_H__
-#define __STDIO_H__
+#ifndef __MATH_H__
+#define __MATH_H__
+
+#define M_PI 3.141592653589793238462643
+
+double sin(double x);
+double cos(double x);
 
 #endif
-- 
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