File size limit? [mhonarc 1.21]

I am trying to use mhonarc to convert some standard UNIX mailbox
style files, some of large size.  With small files, there are no
problems, but with larger ones, my attempts fail.

When trying to process a 2MB mailbox file consisting of around
1300 messages, everything starts out fine, but ends with an
8MB core dump.  Is there a limit to the number of messages Mhonarc
can process at one time?  Thanks.

Jason R. Mastaler
Cadmus Interactive