package/keepalived: fix build with kernel < 4.1

Fixes:
 - http://autobuild.buildroot.org/results/a33433abeb122cfb15f7f21ab777e84040bdcb8b

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/keepalived/0001-global_parser.c-fix-build-with-kernel-4.1.patch

@@ -0,0 +1,37 @@
+From 50e7b848feb7976c58c70edc64bf1056050aa1a3 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Fri, 22 Mar 2019 09:18:44 +0100
+Subject: [PATCH] global_parser.c: fix build with kernel < 4.1
+
+NFT_TABLE_MAXNAMELEN has been added only in kernel 4.1 with
+https://github.com/torvalds/linux/commit/1cae565e8b746f484f1ff1b71d2a1c89d7cf0668
+
+So define it to 32 if it is not defined
+
+Fixes:
+ - http://autobuild.buildroot.org/results/a33433abeb122cfb15f7f21ab777e84040bdcb8b
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+---
+ keepalived/core/global_parser.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/keepalived/core/global_parser.c b/keepalived/core/global_parser.c
+index 65442408..eec82e8a 100644
+--- a/keepalived/core/global_parser.c
++++ b/keepalived/core/global_parser.c
+@@ -60,6 +60,11 @@
+ 
+ #define LVS_MAX_TIMEOUT		(86400*31)	/* 31 days */
+ 
++/* For kernels < 4.1 */
++#ifndef NFT_TABLE_MAXNAMELEN
++#define NFT_TABLE_MAXNAMELEN 32
++#endif
++
+ /* data handlers */
+ /* Global def handlers */
+ #ifdef _WITH_LINKBEAT_
+-- 
+2.20.1
+