From 264cb2b82fd02df945695a76376711b911250093 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Thu, 28 Aug 2003 23:05:25 +0000
Subject: [PATCH] M_PI diff for output_example (handles undefined M_PI) by
 (Bill Eldridge <bill at rfa dot org>)

Originally committed as revision 2175 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 output_example.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/output_example.c b/output_example.c
index 42153f1103..beef610904 100644
--- a/output_example.c
+++ b/output_example.c
@@ -26,6 +26,10 @@
 #include <stdio.h>
 #include <math.h>
 
+#ifndef M_PI
+#define M_PI 3.1415926535897931
+#endif
+
 #include "avformat.h"
 
 /* 5 seconds stream duration */