Cargo Features

libR-sys has no features set by default.

[dependencies]
libR-sys = { version = "0.6.0", features = ["use-bindgen"] }
use-bindgen = bindgen, clang

By default, we use pre-computed bindings that ship with the library. This may fail!
Turn on the 'use-bindgen' feature to generate bindings on the fly for your platform.

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

bindgen build use-bindgen?

Enables bindgen ^0.64

clang build use-bindgen?