[Debian-med-packaging] Bug#964144: ariba: spades is currently only available on amd64

[Adrian Bunk]

Source: ariba
Version: 2.14.5+ds-2
Severity: serious

Issues preventing migration:
ariba unsatisfiable Build-Depends(-Arch) on arm64: spades
ariba unsatisfiable Build-Depends(-Arch) on mips64el: spades
ariba unsatisfiable Build-Depends(-Arch) on ppc64el: spades


There seems to be some disagrement whether spades should be
a dependency, or whether ariba is also usable without spades:

https://salsa.debian.org/med-team/ariba/-/commit/fba3b82104d2b898e68321aacd0826328058006b
https://salsa.debian.org/med-team/ariba/-/commit/7f99111f03696efebd8e40b5b9ed44a80d27f4ba


If spades is required by ariba:
- it should be a dependency, and
- the build dependency should no longer be marked <!nocheck>
  since it is also required to limit where ariba is built, and
- an RM bug is needed for the stale binaries on arm64/mips64el/ppc64el

If spades is only optional for ariba:
- the build dependency should be made amd64-only for now


Updating spades to the latest version might or might not make
spades build on more architectures.