OpenSSL v3 Support in macOS

[abitmore]

Build Error Description

The default version of OpenSSL in HomeBrew is now OpenSSL v3. OpenSSL v1.1 is still available as openssl@1.1.

Update: updated the Wiki page https://github.com/bitshares/bitshares-core/wiki/Building-on-macOS to explicitly use openssl@1.1 since we do not support OpenSSL v3 yet.

Build Environment Details about the build environment, including the relevant required libraries. Much of this information can be found in the CMakeFiles/CMakeOutput.log.

• Host OS: macOS 11.6
• Host Physical RAM -
• Source Branch/Tag: -
• OpenSSL Version: v3
• Boost Version: -
• C++ Compiler: -

CORE TEAM TASK LIST

• [ ] Evaluate Build Error
• [ ] Provide build guidance
• [ ] Create Bug Report

[abitmore]

Update: DH (Diffie-Hellman) tests are failing with OpenSSL v3. See https://github.com/bitshares/bitshares-fc/runs/3862984156?check_suite_focus=true .

Lots of old functions are deprecated in OpenSSL v3.