socket_wrapper failed to build from source on openSUSE

This is actually a bug in /usr/include/bits/socket.h with
-Werror=strict-overflow.

The compiler complains about the CMSG_NXTHDR() macro.


In file included from /usr/include/sys/socket.h:33,
                 from
/builddir/build/BUILD/socket_wrapper-1.3.3/src/socket_wrapper.c:50:
In function '__cmsg_nxthdr',
    inlined from 'test_sendmsg_cmsg' at
/builddir/build/BUILD/socket_wrapper-1.3.3/tests/test_swrap_unit.c:73:9:
/usr/include/bits/socket.h:322:6: error: assuming pointer wraparound does not
occur when comparing P +- C1 with P +- C2 [-Werror=strict-overflow]
  322 |   if ((unsigned char *) (__cmsg + 1) > ((unsigned char *)
__mhdr->msg_control
      |      ^


See https://sourceware.org/bugzilla/show_bug.cgi?id=28846