> Re: Naive question: boolean dependency
> From: Michael Jennings <mej kainx org>
> To: rpm-list redhat com
> Subject: Re: Naive question: boolean dependency
> Date: Thu, 21 Feb 2008 09:31:11 -0800
> On Thursday, 21 February 2008, at 16:29:09 (+0100),
> Vladimir Mihai Pacuraru wrote:
>
> > > Please share some. I would love to see them.
> >
> > Same interest here!
>
> I could be wrong, but you may have missed the subtlety. :)
>
> Put more bluntly: "Had you actually grep'd for them yourself, you
> wouldn't have found any because they don't exist. RPM can't do that."
So basically you can't do boolean dependencies, right? I mean what I
need to do is to say install package X if version Y or Z is already
installed.
> > Again, I would like to do pretty much the same thing (say that a
> package requires either a version or another) and tried to adapt the
> above Requires: example but instead got this error:
>
> error: line 17: Dependency tokens must begin with alpha-numeric, '_'
> or '/':
Because you can't do that either.
> What exactly are the uses for the underscore and the / characters?
>
> Underscores are generally considered "word" characters for historical
> programmer reasons. / allows file dependencies.
Thank you very much for your answer, Michael!
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