You might think you are joking, but that's exactly what happened with sendmail. It's configuration file is so complex (and I think Turing complete) that people

You might think you are joking, but that's exactly what happened with sendmail. It's configuration file is so complex (and I think Turing complete) that people came up with a completely different configuration file to generate the configuration file. Thank god I no longer have to deal with sendmail.