From e0ed157c0039dd99bad92840be46454c0da37383 Mon Sep 17 00:00:00 2001
From: Peter Lawrence <majbthrd@gmail.com>
Date: Thu, 3 Aug 2023 10:45:40 -0500
Subject: [PATCH] add M_PI to defines.h

---
 src/defines.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/defines.h b/src/defines.h
index 2c634398..a2fd9ec9 100644
--- a/src/defines.h
+++ b/src/defines.h
@@ -42,6 +42,9 @@
 #ifndef PI
 #define PI 3.141592654 /* mathematical constant                */
 #endif
+#ifndef M_PI
+#define M_PI 3.14159265358979323846f
+#endif
 #define TWO_PI 6.283185307 /* mathematical constant                */
 #define MAX_STR 2048       /* maximum string size                  */