bug#21601: 25.0.50; (elisp) `Common Keywords', :group

[Lars Ingebrigtsen]

Drew Adams <drew.adams@oracle.com> writes:

>> > Mention here, in the part about :group, and not just in node `Variable
>> > Definitions', that if :group is not specified then the defcustom
>> > inherits the group from the last :group of a preceding defcustom in the
>> > same file.
>> 
>> I did now know that.  But is that something we want to encourage?
>
> It's not something that I think should be encouraged.
> But it is something that Stefan encourages.  And he
> actively removes :group declarations that are not
> strictly necessary.
>
> As long as that is the practice, so that many defcustoms
> and deffaces do not have :group (and that is increasingly
> the case, for distributed Emacs code, at least), we should
> document the behavior (IMHO).

I agree.  I've now mentioned this in the emacs-25 manual.

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