Swift Package Manager support

[richardtop]

Swift Package Manager can be used to integrate together C++ libraries on Apple platforms. For example, with SPM it's possible to add this project as a dependency to an iOS app or library.

What is the issue you have?

I'd like to use Swift Package Manager to integrate this library into my project.

Can you provide a small but working code example?

What is the expected behavior?

And what is the actual behavior instead?

Which compiler and operating system are you using?

• Compiler: Apple Clang / GNU++17 / it doesn't matter
• Operating system: macOS, iOS

Which version of the library did you use?

• latest release version 3.9.1
• other release - please state the version: ___
• the develop branch