Bug#1099467: Byte compilation failure since 30.1

[Stefan Kangas <stefankangas@gmail.com>]

Sean Whitton <spwhitton@spwhitton.name> writes:

> We have several tasks here, in order of priority:
>
> 1. ensure that this issue (uncovered by bookworm-backports) does not
>    mean that plain bookworm->trixie upgrades are broken
> 2. ensure that the issue does not mean
>    bookworm+bookworm-backports->trixie upgrades are broken
> 3. fix things for current bookworm-backports users.
>
> For now I think Xiyue is just trying to understand the nature of the
> breakage more fully so that we can address (1).
>
> Stefan, are you suggesting something that would might fix (2), or were
> you thinking of (3)?

My proposal to upgrade the `elpa-php-mode` package in bookworm-backports
is with regards to (3) only.  I don't know how it might affect (2).