From 28997903a13c5ef2ac294398f047a8cbbc74d378 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Thu, 19 Oct 2006 20:08:03 +0000
Subject: [PATCH] Handle missing M_PI the same way we've been doing in the core
 code, instead of inserting an MSVC dependency.

---
 contrib/earthdistance/earthdistance.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/contrib/earthdistance/earthdistance.c b/contrib/earthdistance/earthdistance.c
index b60370483b..ce1ca1665b 100644
--- a/contrib/earthdistance/earthdistance.c
+++ b/contrib/earthdistance/earthdistance.c
@@ -1,14 +1,15 @@
-/* $PostgreSQL: pgsql/contrib/earthdistance/earthdistance.c,v 1.12 2006/10/19 20:03:07 tgl Exp $ */
+/* $PostgreSQL: pgsql/contrib/earthdistance/earthdistance.c,v 1.13 2006/10/19 20:08:03 tgl Exp $ */
 
 #include "postgres.h"
 
-#ifdef WIN32
-#define _USE_MATH_DEFINES
-#endif
 #include <math.h>
 
 #include "utils/geo_decls.h"	/* for Pt */
 
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
+
 
 PG_MODULE_MAGIC;
 
-- 
2.11.0