amazonka VS rust-bindgen

This is perhaps not as obvious as it could be. A penny for your thoughts? https://github.com/brendanhay/amazonka/issues/968

Most of our tech stack is built on Free and Open Source Software, and we give back wherever we can - either by upstreaming fixes or publishing libraries. In the Haskell world, we’ve open-sourced wai-handler-hal and aws-arn, made significant contributions to amazonka and we have more on the way. If you’re interested, here’s our applications page. If you have questions, you can ask them here or email [[email protected]](mailto:[email protected]).

Stack does not clone a copy of a git package for each of a user's projects that uses the package but cabal does. This can be a deal-breaker for cabal when using huge git projects like https://github.com/brendanhay/amazonka that can take forever to git clone. If you have a test/CI setup for a project that uses such packages, cabal's lack of caching can also cause huge delays and more opportunities for failure (from network errors or timeouts). From the proceedings of past issues, I don't think cabal devs are interested in addressing this use case. https://github.com/haskell/cabal/issues/5586

amazonka is a bit of a minefield despite being listed as the only AWS library by SOTU

Rust supports two kinds of FFI: calling into Rust from another language; and calling into another language from Rust. Most of the thought and tooling that exists right now is organized around the second kind. For example, bindgen is a popular tool that generates useful Rust wrappers from a C or C++ header file.

I have looked into bindgen, but found that it would not be feasible due to OMPL not having a C API, just C++.

Yes! Are you running LLVM version 16.0.0 or newer, by any chance? I believe this is an issue with some builds of bindgen with newer versions of LLVM. See https://github.com/rust-lang/rust-bindgen/issues/2488

On native, you have to define a C API, probably using a header file. Even if both sides are implemented in Rust, they have to speak that C API (documentation).

Bindgen has some functionality for direct talk to C++ https://github.com/rust-lang/rust-bindgen

I am trying to use rust-bindgen (https://github.com/rust-lang/rust-bindgen) to link a static C library (say `libexample.a`) which is compiled in a separate project with CMake. The `libexample.a` depends on other libraries (for example `libcurl.a`) installed on the system.

It looks like the guy you're replying too was kind of an ass, but I do want to point out for anyone else reading that that's not actually that much of a technical limitation: rust code can natively call C code. The main thing you need is a translation of the C library's header file so rustc knows what C functions and structs exist, and that can be automatically generated with bindgen.

It's quite the different approach, but you could consider using bindgen instead.

Use bindgen or CXX to create Rust bindings for the C or C++ libraries.