<linux/in6.h> is not compatible with some versions of <netinet/in.h>. Cc: Susant Sahani <susant@redhat.com> Cc: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Thomas Haller <thaller@redhat.com>