Cargo Features
libgphoto2_sys has no features set by default.
[dependencies]
libgphoto2_sys = { version = "1.2.3", features = ["test"] }- test = gphoto2_test
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.