From 947248af144bcab6376ccddab8dc40f313b14281 Mon Sep 17 00:00:00 2001
From: Baruch Siach <baruch@tkos.co.il>
Date: Fri, 9 Feb 2018 11:55:19 +0200
Subject: [PATCH] Fix build with Linux kernel headers v4.15
Linux kernel version 4.15 changed the libc/kernel headers suppression
logic in a way that introduces collisions:
In file included from ./../include/vrrp_ipaddress.h:32:0,
from ./../include/vrrp_arp.h:31,
from vrrp.c:29:
/home/peko/autobuild/instance-1/output/host/arc-buildroot-linux-uclibc/sysroot/usr/include/linux/in.h:29:3: error: redeclaration of enumerator 'IPPROTO_IP'
IPPROTO_IP = 0, /* Dummy protocol for TCP */
^
/home/peko/autobuild/instance-1/output/host/arc-buildroot-linux-uclibc/sysroot/usr/include/netinet/in.h:33:5: note: previous definition of 'IPPROTO_IP' was here
IPPROTO_IP = 0, /* Dummy protocol for TCP. */
^~~~~~~~~~
Include the libc netinet/in.h header first to suppress the kernel
header.
In addition, add _GNU_SOURCE to vrrp.c for the libc provided in6_pktinfo