From a43bf9f897002744610a9ea5ce7bdc91c3e3dc83 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Tue, 8 Nov 2022 12:21:35 -0800
Subject: [PATCH] networkd-ipv4acd.c: Use net/if.h for getting IFF_LOOPBACK
 definition

This helps in avoiding compiling errors on musl. Definition of
IFF_LOOPBACK is the reason for including linux/if_arp.h, this however
could be obtained from net/if.h glibc header equally and makes it
portable as well.

(cherry picked from commit 239e4a42a69c31e55e58618d800e0d68c68931d3)

Related: #2138081
---
 src/network/networkd-ipv4acd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/network/networkd-ipv4acd.c b/src/network/networkd-ipv4acd.c
index 4127657ebd..877dee00ec 100644
--- a/src/network/networkd-ipv4acd.c
+++ b/src/network/networkd-ipv4acd.c
@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
-#include <linux/if_arp.h>
+#include <net/if.h> /* IFF_LOOPBACK */
+#include <net/if_arp.h> /* ARPHRD_ETHER */
 
 #include "sd-dhcp-client.h"
 #include "sd-ipv4acd.h"