Cargo Features

uu_cp has no features set by default.

uu_cp = { version = "0.0.25", features = ["feat_selinux", "feat_acl"] }
feat_selinux = selinux
feat_acl = exacl

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?
exacl unix feat_acl?