From e527fa269396ef48766aa60f9863068595e6daf7 Mon Sep 17 00:00:00 2001
From: apwebber <39490780+apwebber@users.noreply.github.com>
Date: Fri, 4 Oct 2024 12:55:46 +0100
Subject: [PATCH] Update quadkey.c fix for M_PI on windows

---
 quadkey.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/quadkey.c b/quadkey.c
index f315b75..f11f7ef 100644
--- a/quadkey.c
+++ b/quadkey.c
@@ -31,6 +31,10 @@ typedef unsigned int uint32;
 #endif
 #endif
 
+#ifndef M_PI
+    #define M_PI 3.14159265358979323846
+#endif
+
 
 static inline uint64
 xy2quadint(uint64 x, uint64 y)