Re: [Buildroot] [PATCH] package/boost: remove dependencies on Boost.System

[Thomas Petazzoni via buildroot <buildroot@buildroot.org>]

Hello Michael,

On Wed,  3 Sep 2025 15:37:52 +0200
Michael Nosthoff via buildroot <buildroot@buildroot.org> wrote:

> Boost.System is a header only library since Boost 1.69.0 [0].
> 
> A Stub Library remained for backward compatibility. This
> mainly affects CMake Packages that use FindPackage and
> explicitly list 'system'.
> 
> For Boost internal modules this is not the case so remove this
> dependency.
> 
> Buildroot packages should select BR2_PACKAGE_BOOST_SYSTEM explicitly
> if needed and not rely on a proxy dependency from other boost packages.
> 
> [0] https://github.com/boostorg/system/blob/develop/doc/system/changes.adoc#changes-in-boost-169

Thanks for the patch. It's great to have someone understanding the
dependencies between the different Boost modules, because they are not
obvious, and not easy to maintain, so thanks a lot.

Since this has the potential for breaking stuff quite a bit for
packages that depend on Boost, how much testing did you do (build
testing) ? I see your patch fixes package/libcpprestsdk, but is it the
only package affected?

Note that the fix of package/libcpprestsdk and other packages could be
done as a separate, preliminary patch.

Best regards,

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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