$ roc preprocess-host --help
Runs the surgical linker preprocessor to generate `.rh` and `.rm` files.

Usage: roc preprocess-host [OPTIONS] <host> <platform> <lib>

Arguments:
  <host>      Path to the host executable where the app was linked dynamically
  <platform>  Path to the platform/main.roc file
  <lib>       Path to a stubbed app dynamic library (e.g. roc build --lib app.roc)

Options:
      --verbose  Print detailed information while pre-processing host
  -h, --help     Print help