Hello, On Tue 04 Mar 2025 at 11:32pm -08, Xiyue Deng wrote:
> Sean Whitton <spwhit...@spwhitton.name> writes: > >> Hello Xiyue, >> >> Thanks. >> >> What if we add a Breaks to Emacs in trixie saying it's incompatible with >> dh-elpa-helper <<2.1.7 ? >> >> The following situation is what could break an upgrade: >> - emacs upgraded to version from trixie >> - dh-elpa-helper still on the version from bookworm >> - an addon gets upgraded, and tries to bytecompile. >> >> But a Breaks would mean dpkg would ensure the first two conditions are >> never true. >> >> Then we do indeed do a backport of dh-elpa to bookworm-backports so that >> Emacs in backports remains installable. >> >> No stable update needed. >> > > This does sound appealing. But I think currently dh-elpa requires > Emacs >=1:30.1+1. Will this cause some kind of a circular dependency > that may break upgrades? > > If that's the case, I think we can change the handling in dh-elpa[1] to > work for both 30 and older releases, and we can loosen that requirement > so that it can upgrade before Emacs 30.1. Our dependencies system is meant to be able to handle this sort of case. It can unpack both packages first before configuring either of them. See Policy 7.3. -- Sean Whitton
signature.asc
Description: PGP signature
