Include non-modular header inside framework module with Allow non-modular includes set to YES

Question

Background
I'm building an API framework in Swift. I want it to include a Reachability class that can be used internally and externally.

Status
I've copied the source of the Reachability class provided by Tony Million, added the import statement to my header. The .h file is set to public in the Headers section of Build Phases. I've set Allow Non-modular Includes in Framework Modules to YES in both my project and target. Whenever I go to build the project, I get the error:

Include of non-modular header inside framework module 'MyFramework.Reachability'

on the line that imports ifaddrs.h.

Question
How can I get my project to build? Is there another framework I need to link against that isn't SystemConfiguration?

Answer 1

Have a look at this sample project: https://github.com/tomaskraina/swift-modules-reachability

It consists of a ApiFramework and a ReachabilityApp and demonstrates how to set it up so you can use Reachability both internally in the framework as well as externally - in the app.