Is it possible to share common code between native targets with CInterop working?

Yes, you can create a common source set and create the same cinterop for each native target.

I got the common sourceset but not too sure how could I do the cinterop

Have you made your def file and referenced in gradle?

I don't really want a custom cinterop but the pre-configured one like posix

Oh ohhhh

https://pastebin.com/nyySRFZy this is the type of code I'd like to share between native targets

You can have that code in the common code, it will build, compile and run as expected. The IDE will just make everything (C interop related) red because it's not smart enough yet.

Aha! Then I'll wait for now. I don't really need linux and once it's smart enough I'll use it! If someone have the youtrack link, please. I'll upvote!

Good then, really thank you!