Cargo Features

ic4-sys has no features set by default.

[dependencies]
ic4-sys = { version = "0.2.0", features = ["buildtime-bindgen", "test-ensure-existing-device"] }
buildtime-bindgen = bindgen
test-ensure-existing-device

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 buildtime-bindgen?