boost: fix a musl compilation warning

Upstream-Status: Submitted https://svn.boost.org/trac/boost/ticket/12419

(From OE-Core rev: 03b553e1b2b11ddd7d72a3bb0180d18f36da53b5)

Signed-off-by: André Draszik <git@andred.net>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/boost/boost/0001-boost-asio-detail-socket_types.hpp-fix-poll.h-includ.patch

@@ -0,0 +1,49 @@
+From 40192301130dcd913aa6d9cb9dba9e5f8dbd9d16 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <adraszik@tycoint.com>
+Date: Wed, 24 Aug 2016 21:01:43 +0100
+Subject: [PATCH 1/4] use POSIX poll.h instead of sys/poll.h
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+POSIX specifies that <poll.h> is the correct header to
+include for poll()
+  http://pubs.opengroup.org/onlinepubs/009695399/functions/poll.html
+whereas <sys/poll.h> is only needed for ancient glibc (<2.3),
+so let's follow POSIX instead.
+
+As a side-effect, this silences a warning when compiling
+against the musl C-library:
+
+In file included from ./boost/asio/detail/socket_types.hpp:61:0,
+                 from ./boost/asio/ip/address_v4.hpp:21,
+                 from ./boost/asio/ip/address.hpp:21,
+                 from libs/log/src/init_from_settings.cpp:65:
+<sysroot>/usr/include/sys/poll.h:1:2: warning: #warning redirecting incorrect #include <sys/poll.h> to <poll.h> [-Wcpp]
+ #warning redirecting incorrect #include <sys/poll.h> to <poll.h>
+  ^~~~~~~
+
+etc.
+
+Signed-off-by: André Draszik <adraszik@tycoint.com>
+---
+Upstream-Status: Submitted https://svn.boost.org/trac/boost/ticket/12419
+ boost/asio/detail/socket_types.hpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/boost/asio/detail/socket_types.hpp b/boost/asio/detail/socket_types.hpp
+index e8c7109..7e65d3c 100644
+--- a/boost/asio/detail/socket_types.hpp
++++ b/boost/asio/detail/socket_types.hpp
+@@ -58,7 +58,7 @@
+ #else
+ # include <sys/ioctl.h>
+ # if !defined(__SYMBIAN32__)
+-#  include <sys/poll.h>
++#  include <poll.h>
+ # endif
+ # include <sys/types.h>
+ # include <sys/stat.h>
+-- 
+2.9.3
+

meta/recipes-support/boost/boost_1.61.0.bb

@@ -5,4 +5,5 @@ SRC_URI += "\
     file://arm-intrinsics.patch \
     file://consider-hardfp.patch \
     file://boost-CVE-2012-2677.patch \
+    file://0001-boost-asio-detail-socket_types.hpp-fix-poll.h-includ.patch \
 "