Re: [gentoo-dev] Breaking changes in dev-libs/msgpack-5.0.0

[Michał Górny]

On Mon, 2023-02-06 at 14:09 +0000, Marek Szuba wrote:
> Dear everyone,
>
> Having not been given any love for a long time, we have now got in the
> tree a version of dev-libs/msgpack newer than 3.3.0 - namely 5.0.0. Yes,
> we have managed to skip the entire major version 4 (yay?)! Anyway, the
> version in question introduces at least two breaking changes:
>
>   - since 4.0.0, the (header-only) C++ library is no longer bundled with
> the C one. As a consequence, a new(ish) package dev-cpp/msgpack-cxx has
> been introduced and  >=dev-libs/msgpack-5.0.0 no longer provide
> IUSE="boost cxx";
>
>   - since 5.0.0 CMake modules for both the C and the C++ variant of
> msgpack have different names, which might break cmake-based revdeps
> which have not been updated accordingly.
>
> In light of the above, both dev-cpp/msgpack-cxx and
>  >=dev-libs/msgpack-5.0.0 are currently masked in order to give the
> maintainers of msgpack devreps ample time to test compatibility with the
> new versions. They will, however, be unmasked on the 3rd of March unless
> major problems are encountered with the revdep update. There is a
> tracker bug "msgpack-5" which can be used to group related issues.
>

Given there's only a handful of revdeps, perhaps you could simply test
them?

-- 
Best regards,
Michał Górny