From 4915a77523e2f68402f7a2c6fb3de8860f120d8e Mon Sep 17 00:00:00 2001
From: Nicholas Yue <yue.nicholas@gmail.com>
Date: Tue, 19 Jun 2012 14:41:12 +1000
Subject: [PATCH] Fix M_PI undefined on Windows by including the correct header

---
 src/tools/Camera.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/tools/Camera.h b/src/tools/Camera.h
index 1189a5af..3d494031 100644
--- a/src/tools/Camera.h
+++ b/src/tools/Camera.h
@@ -36,6 +36,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 #ifndef _Camera_h_
 #define _Camera_h_
 
+#ifdef WIN32
+#define _USE_MATH_DEFINES
+#include <math.h>
+#endif //
 
 class Vec3
 {