This patch is necessary to build cpp-httplib in Crashpad, itself in
Chromium, using BoringSSL. Details at [1].
The fixes include:
- Library version check: tolerate BoringSSL as an alternative to
OpenSSL 3.
- Don’t call `OPENSSL_thread_stop`, which is not in BoringSSL.
- Use `SSL_get_peer_certificate` (deprecated in OpenSSL 3), the old
name for `SSL_get1_peer_certificate`, because the new name is not in
BoringSSL.
- Call `SSL_set_tlsext_host_name` directly instead of making an
`SSL_ctrl` call that BoringSSL does not support. The feared
-Wold-style-cast warning that occurs when buidling with OpenSSL is
not triggered in BoringSSL.
[1] https://chromium.googlesource.com/crashpad/crashpad/+/1a62a0182557c89494676c06611f1ca731bcb2db
