From 2aa95db5b95aedcf67a735f3b00b3a077dedbf0a Mon Sep 17 00:00:00 2001
From: Rupert Steel <steelcanon@gmail.com>
Date: Thu, 9 Jan 2014 13:43:36 +1300
Subject: Fixed compile error in Visual Studio 2013 by not redefining symbols
 that are now defined in the VS2013 math.h file.

---
 utils/makehrtf.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'utils/makehrtf.c')

diff --git a/utils/makehrtf.c b/utils/makehrtf.c
index 3df6d81c..45809099 100644
--- a/utils/makehrtf.c
+++ b/utils/makehrtf.c
@@ -733,8 +733,8 @@ static int StrSubst (const char * in, const char * pat, const char * rep, const
   return (! truncated);
 }
 
-// Provide missing math routines for MSVC.
-#ifdef _MSC_VER
+// Provide missing math routines for MSVC versions < 1800 (Visual Studio 2013).
+#if defined(_MSC_VER) && _MSC_VER < 1800
 static double round (double val) {
   if (val < 0.0)
      return (ceil (val - 0.5));
-- 
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