net-vpn/openvpn-2.5.0-r1: Add patch to fix libressl (bug #651228)

Closes: https://bugs.gentoo.org/651228
Copyright: Sony Interactive Entertainment Inc.
Package-Manager: Portage-3.0.10, Repoman-3.0.2
Signed-off-by: Patrick McLean <chutzpah@gentoo.org>

net-vpn/openvpn/files/openvpn-2.5.0-auth-pam-missing-header.patch

@@ -0,0 +1,12 @@
+diff --git a/src/plugins/auth-pam/auth-pam.c b/src/plugins/auth-pam/auth-pam.c
+index f537652e..29306310 100644
+--- a/src/plugins/auth-pam/auth-pam.c
++++ b/src/plugins/auth-pam/auth-pam.c
+@@ -47,6 +47,7 @@
+ #include <fcntl.h>
+ #include <signal.h>
+ #include <syslog.h>
++#include <limits.h>
+ #include "utils.h"
+ 
+ #include <openvpn-plugin.h>

net-vpn/openvpn/openvpn-2.5.0-r1.ebuild

@@ -46,9 +46,12 @@ RDEPEND="${CDEPEND}
 	selinux? ( sec-policy/selinux-openvpn )
 "
 
-CONFIG_CHECK="~TUN"
+PATCHES=(
+	"${FILESDIR}/openvpn-2.5.0-auth-pam-missing-header.patch"
+)
 
 pkg_setup() {
+	local CONFIG_CHECK="~TUN"
 	linux-info_pkg_setup
 }