Cargo Features

sdl2-extras has no features set by default.

[dependencies]
sdl2-extras = { version = "0.1.4", features = ["fspecs"] }
fspecs = specs

Affects sdl2-extras::fspecs

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.

specs fspecs?

Enables specs ^0.14.1