Re: Depends on exact version

[Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>]

Hi Daniel,

On 12.11.2014 22:30, Daniel Lintott wrote:
> I have a package which is split into two sources (a server and gui). The
> server version should match the gui version (upstream version) at all times.
>
> Because of this when I'm creating the meta-package that will depend on
> both the gui and server, should be versioned to to be the same upstream
> version.
>
> To try and achieve this I've used the following:
>
> > Depends: ${misc:Depends},
> >   gns3-gui (= ${source:Upstream-Version}),
> >   gns3-server (= ${source:Upstream-Version})
[...]
> Any idea where I've gone wrong here?

You require the exact upstream version (1.1).
This can't work, because there will always be the Debian revision added 
(1.1-1~exp1).

What should work better is '>= ${source:Upstream-Version}'.

However, that is not enough to guarantee that the upstream versions 
always match. One could then have e.g.:
gns3        = 1.1-1
gns3-gui    = 1.1-1
gns3-server = 1.2-1

If you want to prevent that, you can add appropriate Breaks:
gns3-server:
 Breaks: gns3-gui (< ${source:Upstream-Version})
gns3-gui:
 Breaks: gns3-server (< ${source:Upstream-Version})

Best regards,
Andreas