From 9e8160cf7ed8e822143e29b6e470f4daf78a3860 Mon Sep 17 00:00:00 2001
From: Justin Kerk <dopefishjustin@gmail.com>
Date: Tue, 17 Oct 2017 01:55:57 +0000
Subject: [PATCH] Fix compile warning under Emscripten (#2552) (submitted to
 upstream asio) (nw)

---
 3rdparty/asio/include/asio/detail/socket_types.hpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/3rdparty/asio/include/asio/detail/socket_types.hpp b/3rdparty/asio/include/asio/detail/socket_types.hpp
index 3114c08fa2e..60c5929e828 100644
--- a/3rdparty/asio/include/asio/detail/socket_types.hpp
+++ b/3rdparty/asio/include/asio/detail/socket_types.hpp
@@ -57,7 +57,12 @@
 # include "asio/detail/old_win_sdk_compat.hpp"
 #else
 # include <sys/ioctl.h>
-# if !defined(__SYMBIAN32__)
+# if (defined(__MACH__) && defined(__APPLE__)) \
+   || defined(__FreeBSD__) || defined(__NetBSD__) \
+   || defined(__OpenBSD__) || defined(__linux__) \
+   || defined(__EMSCRIPTEN__)
+#  include <poll.h>
+# elif !defined(__SYMBIAN32__)
 #  include <sys/poll.h>
 # endif
 # include <sys/types.h>