From 3e854006c772dfa185b5c980cf0b72fab1e69a7e Mon Sep 17 00:00:00 2001
From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Wed, 31 Jan 2018 17:23:40 +0100
Subject: [PATCH] ntp: add missing header guard

---
 ntp_io_linux.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ntp_io_linux.h b/ntp_io_linux.h
index cec7887..1702a58 100644
--- a/ntp_io_linux.h
+++ b/ntp_io_linux.h
@@ -24,6 +24,9 @@
   This is the header file for the Linux-specific NTP socket I/O bits.
   */
 
+#ifndef GOT_NTP_IO_LINUX_H
+#define GOT_NTP_IO_LINUX_H
+
 extern void NIO_Linux_Initialise(void);
 
 extern void NIO_Linux_Finalise(void);
@@ -34,3 +37,5 @@ extern int NIO_Linux_ProcessMessage(NTP_Remote_Address *remote_addr, NTP_Local_A
                                     NTP_Local_Timestamp *local_ts, struct msghdr *hdr, int length);
 
 extern int NIO_Linux_RequestTxTimestamp(struct msghdr *msg, int cmsglen, int sock_fd);
+
+#endif