OceCGI Installation
http://www.ocelot.cascaded.net/~anton/ocecgi.html
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OceCGI is a CGI script.  To install it, first enable CGI on your
web server.  Anton has only used it with Apache HTTPD, and cannot help
you with any other HTTPd software.

On Debian GNU/Linux with apache2, you'll do:

    a2enmod cgi

If you are not using mpm_prefork like Anton is, you will do:

    a2enmod cgid

And from there

    systemctl restart apache2
    (or)
    service apache2 restart

From here, run `./configure` and `make install`

If your system calls your Apache HTTPD by a different name (such
as Red Hat using httpd, or FreeBSD using apache24), use it instead.
Unless you're on a Debian-based GNU/Linux distro like Debian or Trisquel
GNU/Linux, the a2enmod commands are worthless to you.