From 055c4340cc975cc7e6b1120ae9a9f54818ef8b5e Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Fri, 9 Jan 2015 17:14:57 +0100
Subject: [PATCH] deps: fix zlib -Wimplicit-function-declaration

Build the bundled zlib with -DZ_HAVE_UNISTD_H to make the definition of
close(), read() and other unistd.h functions available to gzread.c and
gzwrite.c.  It's kind of silly that we have to jump through hoops here
because we never call any of the functions that do I/O directly, but
at least it squelches the -Wimplicit-function-declaration warnings.
---
 deps/zlib/zlib.gyp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/deps/zlib/zlib.gyp b/deps/zlib/zlib.gyp
index fac801c7cbf362..fad1c94c1691ad 100644
--- a/deps/zlib/zlib.gyp
+++ b/deps/zlib/zlib.gyp
@@ -62,6 +62,7 @@
             ['OS!="win"', {
               'product_name': 'chrome_zlib',
               'cflags!': [ '-ansi' ],
+              'defines': [ 'Z_HAVE_UNISTD_H' ],
               'sources!': [
                 'contrib/minizip/iowin32.c'
               ],