Philip Kaludercic <philipk@posteo.net> writes:

> Eli Zaretskii <eliz@gnu.org> writes:
>
>>> From: Philip Kaludercic <philipk@posteo.net>
>>> Cc: João Távora <joaotavora@gmail.com>,
>>>   monnier@iro.umontreal.ca,
>>>   62720@debbugs.gnu.org,  larsi@gnus.org
>>> Date: Wed, 12 Apr 2023 19:39:20 +0000
>>> 
>>> >> Please, in normal non-shouting case, explain to me how you think
>>> >> that the behavior of an existing
>>> >> command can be changed with "completely separate code". 
>>> >
>>> > I already did: either (1) add a prefix argument to an existing
>>> > command, which will then trigger the new behavior, or (2) add a
>>> > separate command.
>>> 
>>> Here you have (1):
>>
>> Thanks.  This is almost on-target, but it modifies
>> package-compute-transaction.  Is that necessary?
>
> I have found an alternative that doesn't change the way
> `package-compute-transaction' works, but requires a small change in
> `package-install':

I have found a smaller but equivalent change that would also solve the
issue: