Cargo Features

uu_id has no features set by default.

[dependencies]
uu_id = { version = "0.0.26", features = ["feat_selinux"] }
feat_selinux = selinux

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.

selinux feat_selinux?