Re: [Buildroot] [PATCH v2] package/bctoolbox: disable mbedtls support

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

On Sun,  7 Sep 2025 15:14:11 +0200
Thomas Petazzoni <thomas.petazzoni@bootlin.com> wrote:

> From: Thomas Petazzoni via buildroot <buildroot@buildroot.org>
> 
> Since mbedtls was bumped to version 3.6.3.1 in commit
> 3481a9643fc7223e400ed877f08ade34d44e6b78, the build of bctoolbox fails
> as its mbedtls support is not compatible with mbedtls 3.x.
> 
> This issue is known upstream:
> 
>   https://github.com/BelledonneCommunications/bctoolbox/issues/19
> 
> and is not fixed, even in newer version of bctoolbox. So for the time
> being, simply disable mbedtls support in bctoolbox.
> 
> Fixes:
> 
>   https://autobuild.buildroot.org/results/7af784cb60b0ec5e5bd0e0915ce6827f69f4bb97/
> 
> Newer versions of bctoolbox have fixed support for mbedtls 3.x,
> however:
> 
> 1. They require mbedtls to be built with the MBEDTLS_THREADING_ALT
>    threading model, which is incompatible with the
>    MBEDTLS_THREADING_PTHREAD threading model with which we are currently
>    building mbedtls.
> 
> 2. The bctoolbox project itself has been archived, and merged into
>    linphone itself, making the work on bctoolbox version bump not very
>    useful/relevant.
> 
> Disabling mbedtls support is therefore the most immediate solution to
> fix the build issue.

In fact, while this solves the build issue for bctoolbox, it then
causes a build issue in belle-sip, which requires bctoolbox to be built
with crypto support.

Considering the issues, and anyway the change of packaging for
linphone, I'm going to send a patch series that drops linphone entirely.

Best regards,

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