[Rd] Package dependencies and imports
maechler at stat.math.ethz.ch
Fri Sep 22 10:00:43 CEST 2006
>>>>> "Seth" == Seth Falcon <sfalcon at fhcrc.org>
>>>>> on Thu, 21 Sep 2006 10:33:06 -0700 writes:
Seth> Martin Maechler <maechler at stat.math.ethz.ch> writes:
>> I think you should use the new DESCRIPTION field and say
>> 'Enhances: rgl'
>> but I haven't checked if this prevents the warning,
>> though I think it should..
Seth> But is Rcmdr enhancing rgl or being enhanced by rgl?
Seth> :-( :-(
I think this distinction is not so easily made on a general level.
I'd say an argument for how you can (should?) think about this
is the following abstraction:
There are two packages, A and B.
A's DESCRIPTION has 'Enhances: B'.
When B is there, A provides extra features.
In one sense, this always enhances B ("enhance" in the usual
English meaning), since B's area of application has been
enlarged by code in A.
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