openssh: fix getpagesize() related static linking issue

Fixes:
http://autobuild.buildroot.net/results/8cc/8cc30818a400c7a392a3de787cabc9cd8425495f/

The configure script checks for getpagesize() and sets HAVE_GETPAGESIZE in
config.h, but bsd-getpagesize.c forgot to include includes.h (which
indirectly includes config.h) so the checks always fails, causing linker
issues when linking statically on systems with getpagesize().

Fix it by including includes.h.

Patch submitted upstream:
https://lists.mindrot.org/pipermail/openssh-unix-dev/2017-October/036413.html

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/openssh/0005-openbsd-compat-bsd-getpagesize.c-include-includes.h-.patch

@@ -0,0 +1,35 @@
+From 9a43657a3dcb868b4f36ade3aba5dcf0871fb412 Mon Sep 17 00:00:00 2001
+From: Peter Korsgaard <peter@korsgaard.com>
+Date: Mon, 30 Oct 2017 23:36:56 +0100
+Subject: [PATCH] openbsd-compat/bsd-getpagesize.c: include includes.h for
+ config.h defines
+
+The configure script checks for getpagesize() and sets HAVE_GETPAGESIZE in
+config.h, but bsd-getpagesize.c forgot to include includes.h (which
+indirectly includes config.h) so the checks always fails, causing linker
+issues when linking statically on systems with getpagesize():
+
+http://autobuild.buildroot.net/results/8cc/8cc30818a400c7a392a3de787cabc9cd8425495f/build-end.log
+
+Fix it by including includes.h
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ openbsd-compat/bsd-getpagesize.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/openbsd-compat/bsd-getpagesize.c b/openbsd-compat/bsd-getpagesize.c
+index 9daddfbd..416a8d4c 100644
+--- a/openbsd-compat/bsd-getpagesize.c
++++ b/openbsd-compat/bsd-getpagesize.c
+@@ -1,5 +1,7 @@
+ /* Placed in the public domain */
+ 
++#include "includes.h"
++
+ #ifndef HAVE_GETPAGESIZE
+ 
+ #include <unistd.h>
+-- 
+2.11.0
+