From 835cf275db1fbcc823c29767ae7e395abdb08375 Mon Sep 17 00:00:00 2001
From: Robert Obryk <robryk@google.com>
Date: Wed, 15 Mar 2017 13:54:37 +0100
Subject: [PATCH] Fix compilation error on Mac.

_exit is declared in unistd.h
---
 guetzli/guetzli.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/guetzli/guetzli.cc b/guetzli/guetzli.cc
index 08a2b3ae..020b4115 100644
--- a/guetzli/guetzli.cc
+++ b/guetzli/guetzli.cc
@@ -20,6 +20,7 @@
 #include <memory>
 #include <string>
 #include <string.h>
+#include <unistd.h>
 #include "gflags/gflags.h"
 #include "png.h"
 #include "guetzli/processor.h"