Fix a build error when using the linux-4.8 headers that results in:
In file included from
.../sysroots/qemuarm64/usr/include/linux/if_tunnel.h:6:0,
from iptunnel.c:39:
.../qemuarm64/usr/include/linux/ip.h:85:8: error: redefinition of
'struct iphdr'
struct iphdr {
^~~~~
In file included from iptunnel.c:29:0:
.../qemuarm64/usr/include/netinet/ip.h:44:8: note: originally defined here
struct iphdr
^~~~~ Signed-off-by: Randy MacLeod <Randy.MacLeod@windriver.com> Signed-off-by: Jackie Huang <jackie.huang@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
