Cargo Features

[dependencies]
wolfssl-sys = { version = "2.0.0", default-features = false, features = ["debug", "postquantum", "kyber_only"] }
default = postquantum

The postquantum feature is set by default whenever wolfssl-sys is added without default-features = false somewhere in the dependency tree.

debug
postquantum default kyber_only?
kyber_only = postquantum

wolfssl-sys has 4 features without comments.