[andrewmcwatters]

This is even more impressive than LuaJIT's FFI in my opinion, which I previously thought was state of the art. You basically pass in a preprocessed header, and LuaJIT does the rest.

All this to say, I feel that any FFI that requires you to manually write bindings is rubbish.

[WalterBright]

We lived with manual bindings to interface with C for years. Building in direct support for C itself is a huge leap forward in usability. In several ways it's even better than C++'s support for C.

[girvo]

How does it deal with the macro-in-macro-in-macro soup that a non trivial amount of headers are? c2nim does a decent job but struggles with some of those types. gcc -E on the header works around it, so I wonder if c2nim could be made to operate similarly to what you’re describing.