From cfbc0a1579a75232eb944c4d2701918e568a510c Mon Sep 17 00:00:00 2001
From: ehofman <ehofman>
Date: Thu, 27 Oct 2005 08:21:00 +0000
Subject: [PATCH] MSVC fix.

---
 simgear/constants.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/simgear/constants.h b/simgear/constants.h
index b77a7965..e3bd3c1e 100644
--- a/simgear/constants.h
+++ b/simgear/constants.h
@@ -32,6 +32,9 @@
 
 #include <simgear/compiler.h>
 
+#ifdef _MSC_VER
+#  define  _USE_MATH_DEFINES
+#endif
 #ifdef SG_HAVE_STD_INCLUDES
 #  include <cmath>
 #else
-- 
2.39.5