Re: [gentoo-alt] EPREFIX vs EROOT

[Johan Hattne]

On Aug 5, 2007, at 22:14 , Fabian Groffen wrote:

> On 05-08-2007 20:24:52 +0200, Johan Hattne wrote:
>> How do I know when to use EROOT and when to use EPREFIX?
>>
>> I haven't found any documentation on this (but haven't looked for
>> it in a
>> while either) -- the issue was briefly mentioned in something I
>> saw on
>> bugzilla some time ago.
>
> Given [1], we know that EROOT is ROOT + EPREFIX.
> The rule is simple and automatable, whether or not it is "correct",
> for
> prefix this rule always holds:
>
>   If the main tree ebuild uses ROOT, we respect ROOT and usually use
>   EROOT, however if the main tree doesn't use ROOT, we only add the
>   offset, thus EPREFIX.
>
> This rule basically means that you /never/ add EROOT yourself, if
> there
> isn't a ROOT in the main tree ebuild.  Repeating: whether or not
> that is
> "correct", for prefix this rule always holds.  Rationale is simple: if
> it is a bug, it is a bug that should be fixed "upstream" (in the main
> tree), and that fix propagated to prefix.  We (I) don't want any extra
> differences between main tree and prefix, to keep maintenance (and
> understanding) low.

Thanks, that clears it up!

// Johan

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