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1. Xaeroxe

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   on Oct 9, 2026
2. ibc commented on Oct 9, 2026

   

   ibc

   on Oct 9, 2026

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   I am updating OpenSSL to 3.5.9 in Meson WrapDB to be able to modernize OpenSSL in mediasoup:

   mesonbuild/wrapdb#2956

   Please let me know how you implemented dynamic linking.
3. Xaeroxe commented on Oct 9, 2026

   

   Xaeroxe

   on Oct 9, 2026

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   @ibc you can review the changes at v3...Xaeroxe:mediasoup:system-openssl

   The primary thrust of it can be found here and here. A new Meson build argument is added, ms_system_openssl which is false by default. When it is true we do not add libcrypto_lib or libssl_lib from openssl_proj to the link_whole value in the meson.build. Additionally, openssl_proj.get_variable('openssl_dep') is moved into a new value, openssl_dep. When the dynamic linking feature is enabled, openssl_dep instead contains a new value, dependency('openssl', version: '>=3.0.0', allow_fallback: false). The Rust build.rs then uses pkg-config to locate the needed libraries and provide it to the meson build. This feature is then propagated upwards through cargo features so that downstream doesn't need to declare a dependency on mediasoup-sys to use it.

   I'm running CI on my own fork right now to test this more broadly but it seems to work for me.
4. ibc commented on Oct 9, 2026

   

   ibc

   on Oct 9, 2026

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   Ok, thanks. Not sure when we will be able to check that in depth (lot of priority stuff to be done before) but we will do it eventually. I will keep this ticket open to not forget.
5. Xaeroxe commented on Oct 9, 2026

   

   Xaeroxe

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   You should also be aware that my change surfaced a bug in how OpenSSL is invoked by mediasoup. This bug never causes an issue on the code base as-is but OpenSSL 3.0 and 3.1 with kernel TLS will experience it. I've already applied a fix on my branch. 6024426
6. ibc commented on Oct 9, 2026

   

   ibc

   on Oct 9, 2026

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   5. You should also be aware that my change surfaced a bug in how OpenSSL is invoked by mediasoup. This bug never causes an issue on the code base as-is but OpenSSL 3.0 and 3.1 with kernel TLS will experience it. I've already applied a fix on my branch. 6024426

   Thanks. Added here in a separate task: #1989