Bug#204971: Wrong priorities with 'Pin-Priority: 0' in /etc/apt/preferences

[Matt Zimmerman <mdz@debian.org>]

On Mon, Aug 11, 2003 at 07:43:01PM +0300, Jarkko Suontausta wrote:

> On Monday 11 August 2003 19:28, Matt Zimmerman wrote:
> > What happens if you change the priority to -10 or so?  I think zero may be
> > special.apt_preferences
> 
> Negative values are ok, only zero is special. However, according to 
> apt_preferences(5), this shouldn't be the case:
> 
> "HOW APT INTERPRETS PRIORITIES
> <cut>
>        0 <= P <=100
>               causes a version to be installed only if there is no installed
>               version of the package"

Since I don't feel too confident about changing the semantics of priority
zero, I think the best solution is to change the documentation to match the
existing behaviour, and have apt print a warning if it encounters this
situation.

-- 
 - mdz