From 3fd0c21e4f63ac0a52b5d7a09575f0f364972e4d Mon Sep 17 00:00:00 2001
From: Quentin Armitage <quentin@armitage.org.uk>
Date: Tue, 8 Jun 2021 08:57:45 +0100
Subject: [PATCH] core: Fix compiling on RHEL 9

Signed-off-by: Quentin Armitage <quentin@armitage.org.uk>

[Retrieved from:
https://github.com/acassen/keepalived/commit/3fd0c21e4f63ac0a52b5d7a09575f0f364972e4d]
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
 keepalived/core/layer4.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/keepalived/core/layer4.c b/keepalived/core/layer4.c
index d2cc971a3..fdca04913 100644
--- a/keepalived/core/layer4.c
+++ b/keepalived/core/layer4.c
@@ -27,13 +27,14 @@
 #include <errno.h>
 #include <unistd.h>
 #include <fcntl.h>
+#include <netinet/in.h>
+#include <net/if.h>
 #include <linux/icmp.h>
 #include <linux/icmpv6.h>
 #ifdef ERRQUEUE_NEEDS_SYS_TIME
 #include <sys/time.h>
 #endif
 #include <linux/errqueue.h>
-#include <netinet/in.h>
 
 #include "layer4.h"
 #include "logger.h"