bug#47454: plist-put should have a version which accepts multiple properties

[Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

Juri Linkov [2021-06-15 00:53:54] wrote:

>> (setf (seq-elt plist ...))
>>
>> may help with that, though.
>
> BTW, often after pulling from master and recompiling,
> Emacs fails to start with such errors:
>
> Debugger entered--Lisp error: (error "(setf seq-elt) is already defined as
> something else than a generic function")
>   error("%s is already defined as something else than a generic function" \(setf\ seq-elt\))
>   cl-generic-ensure-function(\(setf\ seq-elt\))
>   cl-generic-define-method(\(setf\ seq-elt\) nil (store (sequence array) n)
> nil #f(compiled-function (store sequence n)

Hmm....

When you see that, could you show us the value of:

    (symbol-function '\(setf\ seq-elt\))


-- Stefan