[glibc/zack/no-nested-includes] Add IGMP_MRDISC_ADV from Linux 5.1 to netinet/igmp.h.

[glibc/zack/no-nested-includes] Add IGMP_MRDISC_ADV from Linux 5.1 to netinet/igmp.h.

[Zack Weinberg]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c6df1ce3d57328bb14191c85dc4695ffc4bd3b6c

commit c6df1ce3d57328bb14191c85dc4695ffc4bd3b6c
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Tue May 28 12:01:12 2019 +0000

    Add IGMP_MRDISC_ADV from Linux 5.1 to netinet/igmp.h.
    
    This patch adds the IGMP_MRDISC_ADV macro from Linux 5.1 to
    netinet/igmp.h.
    
    Tested for x86_64.
    
    	* inet/netinet/igmp.h (IGMP_MRDISC_ADV): New macro.

Diff:
---
 ChangeLog           | 4 ++++
 inet/netinet/igmp.h | 1 +
 2 files changed, 5 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 53a3ae4..6748798 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2019-05-28  Joseph Myers  <joseph@codesourcery.com>
+
+	* inet/netinet/igmp.h (IGMP_MRDISC_ADV): New macro.
+
 2019-05-27  Florian Weimer  <fweimer@redhat.com>
 
 	* nptl/nptl-init.c: Add comment.
diff --git a/inet/netinet/igmp.h b/inet/netinet/igmp.h
index dccdb11..451b1ab 100644
--- a/inet/netinet/igmp.h
+++ b/inet/netinet/igmp.h
@@ -86,6 +86,7 @@ struct igmp {
 
 #define IGMP_MTRACE_RESP		0x1e	/* traceroute resp.(to sender)*/
 #define IGMP_MTRACE			0x1f	/* mcast traceroute messages  */
+#define IGMP_MRDISC_ADV			0x30	/* From RFC4286.  */
 
 #define IGMP_MAX_HOST_REPORT_DELAY	10	/* max delay for response to     */
 						/*  query (in seconds) according */