From ceaf93a11c5457d778f1bf8f541a5679b952aa09 Mon Sep 17 00:00:00 2001
From: curt <curt>
Date: Wed, 27 Oct 1999 00:44:29 +0000
Subject: [PATCH] Fix for MSVC++

---
 src/FDM/JSBSim/FGUtility.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/FDM/JSBSim/FGUtility.cpp b/src/FDM/JSBSim/FGUtility.cpp
index 0d672d56d..4b72f6132 100644
--- a/src/FDM/JSBSim/FGUtility.cpp
+++ b/src/FDM/JSBSim/FGUtility.cpp
@@ -57,10 +57,10 @@ INCLUDES
 #include "FGState.h"
 #include "FGFDMExec.h"
 
-#ifndef M_PI
+#ifndef M_PI_2
 /* get a definition for pi */
 #include <Include/fg_constants.h>
-#define M_PI FG_PI
+#define M_PI_2 FG_PI_2
 #endif
 
 /*******************************************************************************