[Alug] Webalizer and stdin problem

I want Webalizer to take its input from STDIN by using something like cat various*.log|webalizer -c /path/to/webalizer.conf I find that if I enable DNS lookups, which I want, Webalizer does all the lookups and then stops, displaying the number of addresses resolved, but does not produce any output. If I disable the DNS lookups it produces all the expected output but, of course, no resolved addresses. If I cat the log files to another single file, which I don't want to do, Webalizer will do DNS lookups and produce the expected output if this file is specified as the log file. Does anyone know how I can get Webalizer to do both using STDIN? Regards Barry Samuels