Several months ago I sent mail to mailman-users when I was trying to figure out how to get Mailman to run under thttpd.
I figured it out fairly quickly, but forgot to post the answer back here. I'm doing so now, for the benefit of others who might want to run Mailman on thttpd.
I copied the cgi-bin directory from Mailman's install directory into a "mailman" subdirectory of the thttpd data directory. This could be done with symlinks, but then you'd have to turn off some of thttpd's useful security checks.
Then, I added this entry to the thttpd configuration file:
cgipat=/mailman/**
The double-asterisk is important. Without it, thttpd will not process CGI requests of the sort that Mailman expects.
That's all. Mailman has been running flawlessly for me under thttpd for over four months now.
-Justin