libnet: fixes musl libc build

This patch is back ported from libnet upstream.

Signed-off-by: Ming Liu <peter.x.liu@external.atlascopco.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-connectivity/libnet/libnet/0001-Support-musl-libc-remove-support-for-glibc-2.1.patch

@@ -0,0 +1,58 @@
+From ffd7fab744a9ad2893169a8fb6244074604d5d0d Mon Sep 17 00:00:00 2001
+From: rofl0r <retnyg@gmx.net>
+Date: Tue, 12 Aug 2014 21:51:39 +0200
+Subject: [PATCH] Support musl libc, remove support for glibc < 2.1
+
+Upstream-Status: Backport
+
+The workarounds for glibc < 2.1 (was released february 1999) break the
+build with musl libc.
+
+It is very unlikely that 2.0 or earlier is still in use, and if so,
+1) that's a big security hole
+2) code wouldnt compile anyway since noone tested build in the last decade
+3) user of it wouldn't expect anyway to get bleeding edge sw built on it,
+   so he would just use the latest version that works for him.
+
+Closes #52
+
+Signed-off-by: rofl0r <retnyg@gmx.net>
+Signed-off-by: Ming Liu <peter.x.liu@external.atlascopco.com>
+---
+ libnet/src/libnet_link_linux.c | 11 -----------
+ 1 file changed, 11 deletions(-)
+
+diff --git a/src/libnet_link_linux.c b/src/libnet_link_linux.c
+index 054458d..3c6df3c 100644
+--- a/src/libnet_link_linux.c
++++ b/src/libnet_link_linux.c
+@@ -30,26 +30,15 @@
+ #include <sys/time.h>
+ 
+ #include <net/if.h>
+-#if (__GLIBC__)
+ #include <netinet/if_ether.h>
+ #include <net/if_arp.h>
+-#else
+-#include <linux/if_arp.h>
+-#include <linux/if_ether.h>
+-#endif
+ 
+ #if (HAVE_PACKET_SOCKET)
+ #ifndef SOL_PACKET
+ #define SOL_PACKET 263
+ #endif  /* SOL_PACKET */
+-#if __GLIBC__ >= 2 && __GLIBC_MINOR >= 1
+ #include <netpacket/packet.h>
+ #include <net/ethernet.h>     /* the L2 protocols */
+-#else
+-#include <asm/types.h>
+-#include <linux/if_packet.h>
+-#include <linux/if_ether.h>   /* The L2 protocols */
+-#endif
+ #endif  /* HAVE_PACKET_SOCKET */
+ 
+ #include "../include/libnet.h"
+-- 
+1.9.1
+

meta-oe/recipes-connectivity/libnet/libnet_1.2-rc3.bb

@@ -8,7 +8,9 @@ DEPENDS = "libpcap"
 # There are major API changes beween libnet v1.0 and libnet v1.1
 PROVIDES = "libnet-1.2rc2"
 
-SRC_URI = "${SOURCEFORGE_MIRROR}/libnet-dev/${BPN}-${PV}.tar.gz"
+SRC_URI = "${SOURCEFORGE_MIRROR}/libnet-dev/${BPN}-${PV}.tar.gz \
+           file://0001-Support-musl-libc-remove-support-for-glibc-2.1.patch \
+          "
 
 SRC_URI[md5sum] = "f051e6e5bdecddb90f77c701c2ca1804"
 SRC_URI[sha256sum] = "72c380785ad44183005e654b47cc12485ee0228d7fa6b0a87109ff7614be4a63"