From d7865bf1d49df359c5794868f2be8f5144d7707d Mon Sep 17 00:00:00 2001
From: Kevin Malachowski <kevin@chowski.com>
Date: Fri, 15 Dec 2017 10:49:54 -0800
Subject: [PATCH] i#2157 re-attach: fix the mac build broken by PR 2762 (#2771)

Issue: #2157
---
 core/unix/ksynch_macos.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/core/unix/ksynch_macos.c b/core/unix/ksynch_macos.c
index a00e167b5ce..1a81cbf078d 100644
--- a/core/unix/ksynch_macos.c
+++ b/core/unix/ksynch_macos.c
@@ -41,6 +41,12 @@
  */
 
 #include "../globals.h"
+#include <errno.h>
+/* avoid problems with use of errno as var name in rest of file */
+#if !defined(STANDALONE_UNIT_TEST) && !defined(MACOS)
+# undef errno
+#endif
+
 #include "ksynch.h"
 
 #include <mach/mach.h>