[lambda]

But... that's what bindgen is for. Which I mentioned.

I said it "can be quite simple"; for simple use cases, just using extern and translating the declarations by hand is perfectly viable.

For more complex cases, you use bindgen.

[varjag]

Bindings generators exist in most other languages with same limitations.

I would love to see how bindgen would handle a function call defined as a preprocessor macro that I mentioned. Because most likely it won't.