Cargo Features

[dependencies]
silverknife = { version = "0.0.1", default-features = false, features = ["mac", "linux", "openal", "opengl", "piston-image", "sdl2", "filesystem"] }
default = linux, openal, opengl, piston-image, sdl2

These default features are set whenever silverknife is added without default-features = false somewhere in the dependency tree.

mac = filesystem
linux default = filesystem
openal default = openal-rs
opengl default = gl
piston-image default = image
sdl2 default = sdl2-sys
filesystem linux mac?

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.

gl opengl
image piston-image
openal-rs openal
sdl2-sys sdl2