Bug#1100629: systemd-ukify: ability to use a different zstd implementation

[Simon McVittie]

On Sun, 16 Mar 2025 at 14:28:52 +0000, Luca Boccassi wrote:
>I'll try to look into fixing python3-zstandard, it's unfortunate that
>the zstd transition was started to late

It's a bit of a weird transition, because upgrading a library to a new 
micro version with no new SONAME and no API/ABI breaks would normally be 
treated as a completely routine thing that doesn't need transitions or 
coordination, but python3-zstandard seems to be unusually 
tightly-coupled to an exact version of libzstd.

     smcv