Cargo Features

libpna has no features set by default.

[dependencies]
libpna = { version = "0.11.0", features = ["wasm", "unstable-async"] }
wasm

Enables wasm of liblzma and zstd

unstable-async = futures-io, futures-util

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.

futures-io unstable-async?
futures-util unstable-async?