Cargo Features

[dependencies]
libui-ng-sys = { version = "0.7.0", default-features = false, features = ["build-with-msvc", "build-with-xcode", "probe-system-libui"] }
default = probe-system-libui

The probe-system-libui feature is set by default whenever libui-ng-sys is added without default-features = false somewhere in the dependency tree.

build-with-msvc
build-with-xcode
probe-system-libui default

libui-ng-sys has 4 features without comments.