Re: [gentoo-dev] Making built_with_use die by default with EAPI 2

[Bo Ørsted Andresen]

On Monday 22 September 2008 22:25:20 Petteri Räty wrote:
> > If you mean something like
> >
> >     built_with_use cat/foo coolfeature || ewarn "bar will be more useful if you rebuild cat/foo with USE=coolfeature"
> >
> > then you can use
> >
> >     has_version 'cat/foo[coolfeature]' || ...
> >
> > instead.
>
> What does this report if cat/foo does not have coolfeature use flag in
> some version? Meaning can this support cases which need --missing true.

False. If for instance coolfeature was made optional in >=pv you can use logic
like:

if has_version '>=cat/foo-pv' && ! has_version 'cat/foo[coolfeature]'; then
   ewarn '...'
fi

-- 
Bo Andresen