Proposal for making Multi-Arch:same binNMU-safe

[Johannes Schauer Marin Rodrigues]

Quoting Helmut Grohne (2026-04-15 11:49:42)
> From here we leave the wanna-build source code and continue in sbuild.  It
> already has --binNMU-timestamp and all that the buildd code would have to do
> here is check for the newly added field and pass it along using the new
> option. When the field is not provided, the option is skipped. Thus, this
> change would also be backwards compatible.
>
> [snip]
> 
> sbuild team:
>  * Would you be ok with the projected changes?

I do not see what change in sbuild would be required. As you pointed out, you
can already pass it the timestamp. What else would be needed? There is also
--binNMU-changelog which can be passed to completely control the changelog
entry without sbuild messing up anything.

We talked about this topic in the context of https://bugs.debian.org/843773
which also triggered the addition to --binNMU-changelog in sbuild.

Thanks!

cheers, josch
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