Cargo Features

[dependencies]
highs-sys = { version = "1.6.4", default-features = false, features = ["discover", "build", "highs_release", "libz"] }
default = build, highs_release

These default features are set whenever highs-sys is added without default-features = false somewhere in the dependency tree.

discover build

Enables pkg-config

build build default

Enables cmake

highs_release default
ninja libz

highs-sys has 5 features without comments.