incompatible pointer type

[Bradley W. Langhorst]

utils/net_rpc_join.c: In function `net_rpc_join_newstyle':
utils/net_rpc_join.c:167: warning: passing arg 6 of
`cli_samr_lookup_names' from incompatible pointer type


I saw that warning during compilation of 3.0 head
and thought I'd look into it

arg 6 is supposed to be a char**

just before the call an fstring is casted to a char* like this

names = (char *)&acct_name[0];

then it's passed like this
cli_samr_lookup_names(cli, mem_ctx,&domain_pol, flags, 1, 
&names,
                      &num_rids, &user_rids, &name_types)

so it being passed the address of a pointer to a char* 
that's a char** right?

so what's wrong here?

brad