Re: [gentoo-dev] Re: IUSE variable clarification

[Yannick Koehler <yannick.koehler@colubris.com>]

Le January 9, 2003 12:00 pm, Wilbert Berendsen a écrit:   /   On January 9, 
2003 12:00 pm, Wilbert Berendsen wrote:
> On Thursday 09 January 2003 17:44, Burton Samograd wrote:
> > It looks to me like I got two different responses from different gentoo
> > (...)
> > If the ebuild I'm writing has a depend line:
> >
> > DEPEND="ncurses      # required
> > 		ssl? libssl" # optional
> >
> > according to the first response IUSE would be
> >
> > IUSE="ncurses ssl"
> >
> > and for the second it would be:
> >
> > IUSE="ssl"
> >
> > Could someone please clarify?  It seems to me that the second is correct
> > since the first can already be inferred from the depend line, but if the
> > compile on USE change feature is only using the IUSE variable then the
> > first would be correct.
>
> The second one is correct I think. I think of IUSE as Interactive USE.
> Interactive programs (eg Kportage) can read IUSE and immediately present
> the user the applicable flags before starting an emerge.
>
> So IUSE contains only the used USE settings, not the dependencies.

Wouldn't it be interesting as well for portage/emerge to be able to display 
the content of the IUSE to the end-users?

For example, emerge -i vi could display the corresponding IUSE content so that 
a user can make a better choice when emerging that package?

-- 

Yannick Koehler


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