bug#75170: add-to-alist: new function

[Juri Linkov]

>>> Here's a handy function I'd like to see added to Emacs 21:
>>> add-to-alist.
>
> I forgot to say: I could not find any follow-up or discussion of
> Stephen's proposal
>
> https://lists.gnu.org/archive/html/bug-gnu-emacs/2001-02/msg00066.html
>
> I know about the very different approaches underlying the function
> add-to-list compared to the macro pushnew.  I followed the design of
> add-to-list as I am thinking (like Stephen) of similar use cases.

While indeed there were no responses to the original message,
other proposed implementations can be found as well, e.g.

https://lists.gnu.org/archive/html/bug-gnu-emacs/2002-04/msg00669.html
https://lists.gnu.org/archive/html/bug-gnu-emacs/2002-04/msg00671.html

Also there are threads discussing 'org--tag-add-to-alist' and
'package--append-to-alist' (renamed from 'package--add-to-alist').