[Debian-med-packaging] Bug#1016418: transition: fmtlib

[Shengjing Zhu]

CC spdlog maintainer as well.

On Mon, Aug 15, 2022 at 01:45:32PM +0200, Sebastian Ramacher wrote:
> Let's note hide spdlog's ABI breakage that is unreleated to the fmtlib
> transition. Please fix this issue first and remove the moreinfo tag once
> that's done.

What's your suggestions to fix the spdlog ABI breakage?

Currently,

+ spdlog/1.9 ftbfs with fmtlib/9
+ Upstream doesn't want to fix the ABI breakage in spdlog/1.10, the opening
  issue is closed without fix.

Solutions?

+ revert spdlog to 1.9 and let it use a embedded copy of fmtlib, so it won't
  block fmtlib/9 transition.

  But I think it needs to use soversion libspdlog1, not libspdlog1-fmt8 as well?

+ bump spdlog so version in Debian only without coordination from upstream.

  For example, -> libspdlog1.10-fmt8

+ kick spdlog out of testing.