I tried to install greenlet by 'pip install greenlet'. It failed due to 'gcc not found'. *1. Should you regard gcc as a dependency of greenlet? After gcc is installed ...

When cross-compiling python3-cryptography v40.0.2 with Yocto it fails if you have different version of Python on your host and in the Yocto build. This is caused by src/rust/build.rs that is executing ...