From 58708f6bea86c307b49df538211020466dd0884c Mon Sep 17 00:00:00 2001
From: Florian Golemo <fgolemo@gmail.com>
Date: Thu, 27 Aug 2020 17:34:31 -0400
Subject: Update gzguts.h (#3012)

Adding this makes the library build successfully on Mac Catalina with Miniconda 3.7 on the latest CLANG. Otherwise you get errors that in C99 the functions "write", "close", and "read" aren't defined.
---
 examples/ThirdPartyLibs/zlib/gzguts.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/examples/ThirdPartyLibs/zlib/gzguts.h b/examples/ThirdPartyLibs/zlib/gzguts.h
index 39274b8f5..9977748b7 100644
--- a/examples/ThirdPartyLibs/zlib/gzguts.h
+++ b/examples/ThirdPartyLibs/zlib/gzguts.h
@@ -20,6 +20,7 @@
 
 #include <stdio.h>
 #include "zlib.h"
+#include <unistd.h>
 #ifdef STDC
 #include <string.h>
 #include <stdlib.h>
-- 
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