Cargo Features

xmath has no features set by default.

[dependencies]
xmath = { version = "0.2.9", features = ["glium-support"] }
glium-support = glium

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.

glium glium-support?

Enables glium >=0.14.0, <0.33.0