Cargo Features

[dependencies]
clex = { version = "0.1.0", default-features = false, features = ["llvm-intrinsics"] }
default = ethnum

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

llvm-intrinsics

Enables llvm-intrinsics of ethnum

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.

ethnum default llvm-intrinsics?