On 2021-01-04 17:30, Thomas Deutschmann wrote:
> On 2021-01-04 17:28, Michał Górny wrote:
>> It must be a bug in your version of the eclass.  I've just reemerged
>> acct-group/wheel and to*my great surprise*  I'm still there.  How
>> unexpected!
> 
> That's why I wrote
> 
>  >  (luckily groups like wheel don't have users...)
> 
> I meant that there is no acct-user/wheel because otherwise this group 
> would get cleaned (reset), too.

Best example is portage. Follow handbook. Add your user to portage's group:

 > usermod -aG <your user> portage

Now re-emerge acct-user/portage...

> # usermod -aG thomas portage
> # id portage
> uid=250(portage) gid=250(portage) groups=250(portage),1000(thomas)
> # emerge -a1 acct-user/portage
> 
> These are the packages that would be merged, in order:
> 
> Calculating dependencies... done!
> [ebuild   R    ] acct-user/portage-0::gentoo  0 KiB
> 
> Total: 1 package (1 reinstall), Size of downloads: 0 KiB
> 
> Would you like to merge these packages? [Yes/No] y
>>>> Verifying ebuild manifests
>>>> Running pre-merge checks for acct-user/portage-0
>>>> Emerging (1 of 1) acct-user/portage-0::gentoo
>>>> Installing (1 of 1) acct-user/portage-0::gentoo
>>>> Jobs: 1 of 1 complete
>>>> Auto-cleaning packages...
> 
>>>> No outdated packages were found on your system.
> 
>  * GNU info directory index is up-to-date.
> # id portage
> uid=250(portage) gid=250(portage) groups=250(portage)


-- 
Regards,
Thomas Deutschmann / Gentoo Linux Developer
fpr: C4DD 695F A713 8F24 2AA1 5638 5849 7EE5 1D5D 74A5