Unresolved symbols when moving to spdlog 1.10 without recompile - maybe full symbol

[commel]

The cryfs package uses spdlog 1.8.x. openSUSE moved to spdlog 1.10. This resulted in unresolved symbols, because of a ABI break in one of the later commits: c47ae3b

Would it be possible to include version symbols in the releases? Or somehow maintain backward compatibility?

See our bugreport: https://bugzilla.opensuse.org/show_bug.cgi?id=1199306#c0

[tt4g]

SPDLOG_VERSION macro is here:

spdlog/include/spdlog/version.h

Lines 6 to 10 in 76fb40d

	#define SPDLOG_VER_MAJOR 1
	#define SPDLOG_VER_MINOR 10
	#define SPDLOG_VER_PATCH 0
	#define SPDLOG_VERSION (SPDLOG_VER_MAJOR * 10000 + SPDLOG_VER_MINOR * 100 + SPDLOG_VER_PATCH)

[Vogtinator]

What's needed is to either increase the sover on each ABI incompatible release or introduce use of symbol versioning.

[tt4g]

There is no documentation on ABI compatibility for spdlog, but I think spdlog has a policy of not guaranteeing ABI compatibility with minor version upgrades.
@gabime Is this understanding correct?

[gabime]

We try not to break the ABI however it is certainly not guaranteed nor a top priority.