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On Fri, 23 Jul 2010 13:30:02 +0200
Thomas Beierlein <tomjbe@g.o> wrote:
> > > interesting. I did not know that an ebuild can use-depend on
> > > itself. Good to know.
> >
> > No, not good. It doesn't make any sense.
> 
> Can you give some reasoning for that?

It's entirely unclear what deps upon self actually mean. Some people
use them to say that a package needs to be installed before it can
install itself. Thus, things like:

    DEPEND="|| ( myself myself-bin )"

So a dependency upon myself[foo] would probably mean "I need
myself[foo] to be installed before I can install myself", not "I need
the foo flag to be set on myself".

In any case, abusing DEPEND isn't a mechanism for implementing use
requirements. You should use the mechanism that's designed for use
requirements to do use requirements, which means waiting for EAPI 4
and pkg_pretend, or just follow existing policy and pick one in the
case of a conflict.

- -- 
Ciaran McCreesh
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