I'd recommend that configure.ac do a check for 'sudo iptables -w -L -n'. If it succeeds, then conditionally add to src/util/viriptables.c:iptablesCommandNew() a 'virCommandAddArgList(cmd, "-w", "NULL)'.
I'd recommend that configure.ac do a check for 'sudo iptables -w -L -n'. If it succeeds, then conditionally add to src/util/ viriptables. c:iptablesComma ndNew() a 'virCommandAddA rgList( cmd, "-w", "NULL)'.