rc.conf: gnome_enable="YES" - which instructions executed?

[Kevin Kinsey]

Chris Stankevitz wrote:
>> From: Rob Farmer <rfarmer at predatorlabs.net>
>>> Q: Where on my hard drive can I find the instructions
>> executed to "enable" GNOME?
>>
>> This enables dbus, avahi, hal, and gdm (assuming that they
>> are installed, of course). See the files for those things in
>> /usr/local/etc/rc.d for the details of what is run.
>>
>> See:
>> http://www.freebsd.org/gnome/docs/faq2.html#full-gnome
> 
> Rob,
> 
> Thank you for your response.  I also saw that comment in
 > the docs; however, I am actually not interested in knowing
 > what gnome_enable="YES" does.  I should have been more clear.
> 
> I would like to learn more about how rc operates.  I want
 > to know where on the hard drive the instructions are
> located that activate when I say gnome_enable="YES".
 > I naively thought I would find a file called "/usr/local/etc/rc.d/gnome"
 >  -- but I did not.  Something more complicated is going
 > on.  So my question is -- how is this working?
> 
> Thank you,
> 

Err, Magic?

More seriously, `man rc` and several hours of cross-references
(rc.subr., rc.conf., rc.local, etc. etc.) might be enlightening.

HTH,

Kevin Kinsey