From 13cb8763e2243246c33a4e7b780868e63cea3223 Mon Sep 17 00:00:00 2001
From: clifford <clifford@b57f626f-c46c-0410-a088-ec61d464b74c>
Date: Sun, 26 Jul 2009 16:31:19 +0000
Subject: [PATCH] Clifford Wolf: 	Define M_PI if it is not there..

git-svn-id: http://svn.clifford.at/openscad/trunk@81 b57f626f-c46c-0410-a088-ec61d464b74c
---
 openscad.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/openscad.h b/openscad.h
index 133a99fb..36931010 100644
--- a/openscad.h
+++ b/openscad.h
@@ -44,6 +44,11 @@
 #include <fstream>
 #include <iostream>
 
+// for win32 and maybe others..
+#ifndef M_PI
+#  define M_PI 3.14159265358979323846
+#endif
+
 class Value;
 class Expression;