High Sierra compile

[grylem]

To many error.

[JayBrown]

It doesn't work on Mojave either. Sadly, Apple changed too much. I tried downloading the newest version from here – https://opensource.apple.com/release/macos-10141.html –, i.e. the full CommonCrypto package, and tried to build it in Xcode, but it didn't work either. Maybe you have better luck and find some ways to tweak it in Xcode.