Hi sr-dev

Just a heads-up that I have included a (slightly larger than normal) commit to 5.8. This offers provider support (v3) in parallel to ENGINE(v1.1.1).

- provides basic infrastructure for OpenSSL 3 providers - it can be guarded with -DOPENSSL_NO_PROVIDER (which turns this commit off completely.

Thanks for your patience with all the tls.so churn.

Regards Richard