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On Sat, Jul 11, 2009 at 10:47:01PM +0100, Graham Cobb wrote:
>On Saturday 11 July 2009 20:54:09 Jonas Smedegaard wrote:
>> gs-esp or gs-gpl did not ever provide a working CUPS. So they should
>> not depend on CUPS components. Moreover, this CUPS component is
>> believed to not even exist back when gs-esp and gs-gpl were real
>> packages.
>
>I agree that they should not depend on cups. However, in lenny, if I
>remember correctly, installing cups and gs-esp/gpl was enough (for me)
>to have a working cups system. Upgrading that system must not result
>in a broken system: otherwise the upgrade process is broken!
You did not even have to install gs-{esp,gpl} as it would be pulled in
from cups (or cupsys, back in the days of multiple incarnations of gs).
I believe cups works properly today too.
I believe that *both* cups and ghostscript-cups packages have proper
dependencies. What you experienced was a case of running
testing/unstable:
1) install cups + depends and recommends
2) update cups - new recommends missing from the archive
3) ignore new recommends when they emerge in the archive
That third step above is due to APT not being able to distinguish
between recommends explicitly ignored and those ignored due to being
missing at the time of installataion. Or at least that is my
understanding of the issue.
This is a fundamental limitation of the recommends mechanism, I believe,
i.e. will occur also for non-crucial parts of e.g. a gnome desktop
installation when installing from CD (not DVD) and without internet
access at the time of installation.
I believe it makes better sense to file a bug against APT about this
general issue than to work around it by excessive use of depends instead
of recommends.
Hope that clarifies,
- Jonas
- --
* Jonas Smedegaard - idealist og Internet-arkitekt
* Tlf.: +45 40843136 Website: http://dr.jones.dk/
[x] quote me freely [ ] ask before reusing [ ] keep private
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