[gentoo-user] why PDEPEND ?

[gentoo-user] why PDEPEND ?

[Enrico Weigelt]

Hi folks


I've seen perl has some PDEPEND's, which means that these packages 
(PodParser and Test-Harness) are emerged right after perl.

Why is that necessary ? 

Shouldn't those packages requiring these two simply have them 
as DEPEND ?


cu
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Re: [gentoo-user] why PDEPEND ?

[Albert Hopkins]

On Mon, 2007-05-14 at 15:18 +0200, Enrico Weigelt wrote:
> Hi folks
> 
> 
> I've seen perl has some PDEPEND's, which means that these packages 
> (PodParser and Test-Harness) are emerged right after perl.

> Why is that necessary ? 

Because depends are resolved prior to a given package and so my guess is
the above would fail if perl were not installed/updated first, therefore
they are P[OST]DEPENDs


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Albert W. Hopkins

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Re: [gentoo-user] why PDEPEND ?

[Bo Ørsted Andresen]

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On Monday 14 May 2007 15:18:21 Enrico Weigelt wrote:
> I've seen perl has some PDEPEND's, which means that these packages
> (PodParser and Test-Harness) are emerged right after perl.
>
> Why is that necessary ?
>
> Shouldn't those packages requiring these two simply have them
> as DEPEND ?

Obviously those packages aren't build time dependencies. So the alternative 
would be RDEPEND (run-time dependencies). PDEPEND (post dependencies) is 
chosen to avoid circular dependencies.

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Bo Andresen

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