[Dovecot] Running 1.x and 2. x on same machine

[email builder]

> > When building from source, is it possible to use "make install" to  switch 

> > between version 1.x and 2.x on the same machine (just for  testing)?  
> 
> I do that all the time.
> 
> > Do both versions  install the same binaries?
> 
> No, but as long as you don't use the other  one's extra binaries it
> doesn't matter.

OK, great.  I assume you mean as long as I only use /usr/local/sbin/dovecot to 
start the IMAP server, it will start whatever version I last installed with 
"make install" right?  If it does that, I'm good.

> > Is configuration from 2.x  backward 
> > compatible with 1.x? (so we can have the newest configuration  files on our 
> > system without bothering to have a second set of 1.x  config files)
> 
> v2.0 can read most v1.x config files, but it'll give a lot  of warnings
> about it. Their default configs are anyway in different  locations. I
> just keep them both:

What about the other way around?  If I already have 2.0 configuration files 
done, can I point 1.x to them?  Will 1.x choke on 2.0 config files?

> v1.x:  /usr/local/etc/dovecot.conf
> v2.x:  /usr/local/etc/dovecot/dovecot.conf

If it's best to keep the two sets of configuration files, I'd rather separate 
them better than that. Is there a configure option that can move the location of 
the config directory only?  I guess if I install the binaries to a separate 
place using the --prefix option, the config files also get moved?

> > Or instead should we be changing  something like the installation and config 

> > directorie for one of the  versions when we install it (how?).
> 
> ./configure  --prefix=/usr/local/dovecot-2.0

OK, but according to your answer at the top of this message, this isn't 
necessary unless I want to have the binaries installed at the same time (which 
isn't a bad idea I suppose)