Matt Caswell

@slontis or @levitte - this PR has been modified since your approval. Please can one of you reconfirm?

Pushed to master and 3.0. Thanks. I squashed the commits before push.

Supporting cmake and removing perl as a dependency are two entirely different and unrelated things. The latter is unlikely to happen any time soon because of what @richsalz said. The...

> which it will only do if the atexit handler has not been called. This will presumably lead to mem leaks if OpenSSL library is already cleaned up by the...

> Are there are performance comparisons being done as part of this work? No. There have been separate ongoing discussions about having some performance testing infrastructure which would allow us...

I've pushed an additional commit to address the CI failure. So now the last 2 commits in this PR are relevant and all earlier ones are inherited from #19198.

I've extended this to also convert the SSLv3 code

Now that #19198 has been merged I have rebased this PR and taken it out of draft. There is a CI failure that appears unrelated in bio_dgram_test (ping @hlandau). Please...

Rebased

All feedback addressed. @hlandau, @levitte - please take another look.