Pruning old Perl installs

Ryan Schmidt ryandesign at
Tue Apr 7 03:15:39 UTC 2020

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On Apr 6, 2020, at 21:23, Kieran Simpson wrote:

> I'm going through my ports installation and pruning out old versions. I've cleared out a few Python installs and now Perl is getting the same treatment. However I've gotten stuck and am not sure on the best way to proceed without breaking something.
> $ port installed perl*
> The following ports are currently installed:
>   perl5 @5.26.1_0+perl5_26 (active)
>   perl5.24 @5.24.4_4 (active)
>   perl5.26 @5.26.3_4 (active)
>   perl5.28 @5.28.2_2 (active)
> $ port dependents perl5.24
> p5.24-alien-wxwidgets depends on perl5.24
> ....
> $ sudo port uninstall p5.24-alien-wxwidgets depends on perl5.24

Here you are asking MacPorts to uninstall the four ports named "p5.24-alien-wxwidgets", "depends", "on", and "perl5.24" which is probably not what you meant. 

> Note: It is not recommended to uninstall/deactivate a port that has dependents as it breaks the dependents.
> The following ports will break: p5-alien-wxwidgets @0.690.0_0
> $ port info p5-alien-wxwidgets
> p5-alien-wxwidgets @0.690.0 (perl)
> Replaced by:        p5.26-alien-wxwidgets
> Sub-ports:            p5.26-alien-wxwidgets, p5.28-alien-wxwidgets, p5.30-alien-wxwidgets
> Library Dependencies: p5.26-alien-wxwidgets
> So by removing p5.24-alien-wxwidgets I don't think anything will break. However any advice on how to proceed would be appreciated.

I agree that nothing will break and you can safely force the uninstallation of any p5.24-* port that claims its corresponding p5-* port will break. (It won't.) However there is no reason to install any p5-* port so you could uninstall those as well and thus avoid the erroneous message. 

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