WSDL2Java with multiple wsdl files

I have a wsdl file that references another wsdl which references back to the first wsdl.  when I try to run WSDL2Java on the original one I get an undefined porttype error that points to the second wsdl file.  Is there any way to either tell it to go to all referenced wsdls or just get it to run on multiple wsdl files at once?