Cargo Features

libjade-sys has no features set by default.

[dependencies]
libjade-sys = { version = "0.0.2-pre.2", features = ["bindings"] }
bindings = bindgen

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 not win bindings?