package/mini-snmpd: fix musl build

Fixes:
 - http://autobuild.buildroot.org/results/6903a0f685076b4a2c2824de6158da40e9e712d8

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/mini-snmpd/0001-linux.c-fix-musl-build.patch

@@ -0,0 +1,46 @@
+From 73fa408f51ec25121075aaccac9c9db1c68567cd Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Thu, 12 Mar 2020 10:02:18 +0100
+Subject: [PATCH] linux.c: fix musl build
+
+Remove include on linux/if_link.h to avoid the following build failure
+with musl:
+
+In file included from /home/buildroot/autobuild/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot/usr/include/linux/kernel.h:4,
+                 from /home/buildroot/autobuild/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot/usr/include/linux/netlink.h:4,
+                 from /home/buildroot/autobuild/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot/usr/include/linux/if_link.h:5,
+                 from linux.c:21:
+/home/buildroot/autobuild/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot/usr/include/linux/sysinfo.h:7:8: error: redefinition of 'struct sysinfo'
+ struct sysinfo {
+        ^~~~~~~
+In file included from linux.c:19:
+/home/buildroot/autobuild/instance-2/output-1/host/i586-buildroot-linux-musl/sysroot/usr/include/sys/sysinfo.h:10:8: note: originally defined here
+ struct sysinfo {
+        ^~~~~~~
+  CC       mini_snmpd-globals.o
+
+Fixes:
+ - http://autobuild.buildroot.org/results/6903a0f685076b4a2c2824de6158da40e9e712d8
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+[Retrieved from:
+https://github.com/troglobit/mini-snmpd/commit/73fa408f51ec25121075aaccac9c9db1c68567cd]
+---
+ linux.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/linux.c b/linux.c
+index a657912..86a7085 100644
+--- a/linux.c
++++ b/linux.c
+@@ -18,7 +18,6 @@
+ #include <netpacket/packet.h>
+ #include <sys/sysinfo.h>
+ #include <sys/socket.h>
+-#include <linux/if_link.h>
+ #include <sys/ioctl.h>
+ #include <sys/types.h>
+ #include <sys/time.h>
+-- 
+2.25.1
+