Cargo Features

include_directory has no features set by default.

[dependencies]
include_directory = { version = "0.1.1", features = ["metadata", "nightly", "glob"] }
metadata

Enables metadata of include_directory_macros

nightly

Enables nightly of include_directory_macros

Features from optional dependencies

glob implicit feature

Enables glob

glob:

Support for matching file paths against Unix shell style patterns