Cargo Features

[dependencies]
xbf_rs = { version = "0.1.0", default-features = false, features = ["xbf_threadsafe"] }
default = xbf_threadsafe

The xbf_threadsafe feature is set by default whenever xbf_rs is added without default-features = false somewhere in the dependency tree.

xbf_threadsafe default

xbf_rs has 2 features without comments.