How to uninstall packages that were installed as dependency but are no longer required

[Yasuhiro Kimura]

From: Marco Atzeri via Cygwin <cygwin@cygwin.com>
Subject: Re: How to uninstall packages that were installed as dependency but are no longer required
Date: Tue, 30 Mar 2021 10:07:04 +0200

> as currently we are not tracking between choosen packages
> and installed by dependency, Cygwin is lacking such capabilities
> 
> the most likely candidates for removal are the different version
> of the same libraries
> 
> $ cygcheck -cd | grep "^lib" | tee lib.txt
> 
> in my case I see
> 
> libvpx1                                 1.3.0-2
> libvpx3                                 1.5.0-1
> libvpx4                                 1.6.1-1
> libvpx5                                 1.7.0-1
> 
> $ cygcheck-dep -q -n libvpx1 libvpx3 libvpx4 libvpx5
>  libvpx1: is needed for ( )
>  libvpx3: is needed for ( )
>  libvpx4: is needed for ( )
>  libvpx5: is needed for ( gstreamer1.0-plugins-good libvpx-devel )
> 
> Regards
> Marco

I didn't know cygcheck-dep package and it seems very helpful to
uninstall unnecessary dependency.

Thanks for letting me know it.

---
Yasuhiro Kimura