[mbed-tls] Side by side installation of mbedtls 2.x and mbedtls 3.x

Dear all,

mbedtls 3.x is incompatible with mbedtls 2.x so the transition of all the packages using mbedtls will take a long time. However, from my understanding, it is not possible to install both versions side by side as a lot of headers are common to both versions and installed in include/mbedtls.

This fact is raising concern on buildroot side, see: https://patchwork.ozlabs.org/project/buildroot/patch/20211228153345.4087026-...

Can you confirm that a side-by-side installation of both mbedtls versions is not possible and/or can you share some inputs on this topic?

Best Regards,

Fabrice