Bug#1141576: /usr/bin/hokey: hokey canonicalize output depends on version of libghc-hashable-dev

[Clint Adams]

On Mon, Jul 06, 2026 at 04:36:49PM +0200, Uwe Kleine-König wrote:
>Packet ordering bases on comparing hashes
>(Codec/Encryption/OpenPGP/Types.hs, `instance Ord Pkt`) and canonicalize

So technically the bug is in (or also in) hOpenPGP, but that's not
important for this discussion.

>sorts using that Ord instance. Now hashable changed byte hashing in
>https://github.com/haskell-unordered-containers/hashable/pull/301 and
>thus canonicalization changed.
>
>IMHO canonicalization shouldn't depend on an (unstable) hashing
>algorithm. It should at least be documented that canonicalization is
>unstable, or better, canonicalization should be fixed to be independent
>of hashing.

I agree, and there's a FIXME comment about it in hOpenPGP's
Codec/Encryption/OpenPGP/Types/Internal/Pkt.hs , but I don't have a good
solution.  Do you have an idea for a stable mechanism that would do
the right thing?