Cargo Features
cfg-expr has no features set by default.
[dependencies]
cfg-expr = { version = "0.17.0", features = ["targets"] }- targets = target-lexicon
-
Allows parsing and handling of arbitrary target triples, including ones that are not builtin to rustc
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.