From 3ccb3a3ce396bdff7038d2f10ecd128b5277638b Mon Sep 17 00:00:00 2001
From: Jeffrey Stedfast <jeff@xamarin.com>
Date: Tue, 26 Jul 2011 18:40:38 -0400
Subject: [PATCH] Don't invoke libc uname() on non-Unix systems

---
 mcs/class/System/System/Platform.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mcs/class/System/System/Platform.cs b/mcs/class/System/System/Platform.cs
index a953e83a31c..823063b5624 100644
--- a/mcs/class/System/System/Platform.cs
+++ b/mcs/class/System/System/Platform.cs
@@ -23,6 +23,7 @@
 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 //
 
+using System;
 using System.Runtime.InteropServices;
 
 namespace System {
@@ -35,6 +36,9 @@ namespace System {
 		
 		public static bool IsMacOS {
 			get {
+				if (Environment.OSVersion.Platform != PlatformID.Unix)
+					return false;
+
 				if (!checkedIsMacOS) {
 					IntPtr buf = Marshal.AllocHGlobal (8192);
 					if (uname (buf) == 0) {
-- 
2.25.1