From 1bd7a009f19f48d1388583f3a21e67de904437ba Mon Sep 17 00:00:00 2001
From: Tom van Dijck <tvandijck@blizzard.com>
Date: Thu, 9 Jun 2016 11:24:06 -0700
Subject: [PATCH] fix zlib

---
 contrib/zlib/premake5.lua | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/contrib/zlib/premake5.lua b/contrib/zlib/premake5.lua
index 7cf4ed1a..e1bb429b 100644
--- a/contrib/zlib/premake5.lua
+++ b/contrib/zlib/premake5.lua
@@ -12,3 +12,6 @@ project "zlib-lib"
 
 	filter "system:windows"
 		defines { "_WINDOWS" }
+
+	filter "system:not windows"
+		defines { 'HAVE_UNISTD_H' }