The algorithm is built on top of PUFFINN, which was built on C++. To achieve Rust integration, bindgen has been used, which, provided a C/C++ header file, receives Rust FFI code to call into C/C++ functions and use types defined in the header. But generating directly C++ binds is quite tricky since not all features are supported, instead what has been done is a minimal C wrapper around the basic functions to then generate the bindings. To do this, some prerequisites are needed, namily:
- Clang 9.0 or greater
- A valid OpenMP installation, what worked for me is to install the development package, even though a OpenMP installation for GCC already exists:
sudo apt install libomp-dev
At this point, all you need to do is do cargo build and it should automatically compile.