[request-tracker-maintainers] Bug#518692: Bug#518692: request-tracker3.8: Fails to start if request-tracker3.6 is also installed

[Dominic Hargreaves]

On Sun, Mar 08, 2009 at 02:06:59PM +1300, Andrew Ruthven wrote:

> If request-tracker3.6 is installed then the RT::Config from rt3.6 is
> loaded by mistake.  This causes major fail.
> 
> In our case apache2 wouldn't start because of it.  This is the error
> message in the Apache2 error.log file:
> 
> [Sun Mar 08 11:01:36 2009] [error] Can't locate object method "Config" via packa
> ge "RT" at /usr/share/request-tracker3.8/libexec/webmux.pl line 100.\nBEGIN fail
> ed--compilation aborted at /usr/share/request-tracker3.8/libexec/webmux.pl line 
> 102.\nCompilation failed in require at (eval 243) line 1.\n
> 
> Cheers!

I'm guessing that this is because somewhere in the Apache configuration
you are already PerlRequire'ing
/usr/share/request-tracker3.6/libexec/webmux.pl which is in turn pushing
/usr/share/request-tracker3.6/lib onto @INC.

We could add a note in the READMEs that you shouldn't do this, but I
don't think there's anything we could change in the package to stop this
being a problem (which is a shame, because I suspect that it'll a common
problem).

The rt3.8-apache2 package provides not only modperl2 configuration but
also fastcgi and speedycgi, which *can* be used in parallel with
multiple versions

If that wasn't the case, I'd consider Conflicts: rt3.6-apache2, but
even that would only be a clue as to where the problem was since the
conffile could still be there, being included by mistake.

Have I missed anything?

Dominic.

-- 
Dominic Hargreaves | http://www.larted.org.uk/~dom/
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