From 9306e36d526a6157e507d83fee6a35a539e4bc55 Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Sun, 15 Mar 2009 23:14:40 -0700
Subject: [PATCH] Make sure M_PI is defined for reverb

---
 Alc/alcReverb.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Alc/alcReverb.c b/Alc/alcReverb.c
index 0a65920f..30581ff0 100644
--- a/Alc/alcReverb.c
+++ b/Alc/alcReverb.c
@@ -44,6 +44,10 @@
 #define __min min
 #endif
 
+#ifndef M_PI
+#define M_PI 3.14159265358979323846  /* pi */
+#endif
+
 typedef struct DelayLine
 {
     // The delay lines use sample lengths that are powers of 2 to allow
-- 
2.11.4.GIT