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Subject:	Re: setup graphical chooser : how to list orphaned packages ?
To:	cygwin AT cygwin DOT com
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From:	cyg Simple <cygsimple AT gmail DOT com>
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Date:	Sat, 14 Oct 2017 11:31:17 -0400
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On 10/13/2017 4:16 PM, Ken Brown wrote:
> On 10/13/2017 3:49 PM, Brian Inglis wrote:
>> On 2017-10-13 13:37, Achim Gratz wrote:
>>> Jérôme Bouat writes:
>>>> Are "orphans" and "obsolete" 2 different things ?
>>>
>>> Yes.  An orphaned package is one that is installed on your system, but
>>> not available in any version from setup.  An obsolete package is one
>>> that still exists (usually as an empty package) both in setup and on
>>> your system in order to provide a dependency (usually for older packages
>>> that still refer to the obsolete package name until they can get
>>> rebuilt).
>>
>> Obsolete packages are also provided in setup like "virtual" packages for
>> backward compatibility with old package names requiring the new package.
>>
>> I recently removed some of these old obsolete packages as I was using the
>> upgraded packages.
>>
>> The next time I ran setup for an upgrade to the underlying package,
>> the obsolete
>> package and obsolete library package were "reinstalled", along with
>> the upgraded
>> real package and library package!?
> 
> This is very common.  Suppose you have package A installed, which
> requires B.  Package B gets obsoleted by C.  But A still requires B
> until someone (usually the maintainer of A) changes this to make A
> require C instead.
> 

Maybe a column showing what installed packages are depending on B and a
column showing the dependencies for package A would be nice?  It would
help clear the confusion anyway.

-- 
cyg Simple

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