From db207feed1a167866ae134c2ed72db12ce1db1c0 Mon Sep 17 00:00:00 2001
From: "alexey.lysiuk" <alexey.lysiuk@gmail.com>
Date: Wed, 30 Dec 2015 12:17:38 +0200
Subject: [PATCH] Added missing header #include for old OS X SDKs

---
 src/posix/cocoa/st_start.mm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/posix/cocoa/st_start.mm b/src/posix/cocoa/st_start.mm
index a1db95a0b..36582c64b 100644
--- a/src/posix/cocoa/st_start.mm
+++ b/src/posix/cocoa/st_start.mm
@@ -31,6 +31,8 @@
  **
  */
 
+#include <unistd.h>
+
 #import <Foundation/NSRunLoop.h>
 
 #include "c_cvars.h"