bug#54098: 29.0.50; Unexec build broken

[Po Lu]

Alan Mackenzie <acm@muc.de> writes:

>> It should return a copy of the form instead, but I don't know if the
>> rest of the byte compiler relies on the side effects symbol position
>> stripping.
>
> There are no such dependencies.  It's just that copying a Lisp structure
> is difficult.  For example, copy-tree doesn't work when there are
> circular lists.
>
> But making a copy would indeed be better.  Maybe I can hack something
> together from first principles, that would handle circular structures
> correctly.
>
>> Alan, WDYT?
>
> I'll look at it.  I think I should be able to fix it.

Thanks.