Cargo Features

gfx-backend-gl has no features set by default.

[dependencies]
gfx-backend-gl = { version = "0.9.0", features = ["cross"] }
cross = auxil, spirv_cross

Enables spv-out of naga ^0.5

Affects conv::map_naga_stage_to_cross

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](https://rust-lang.github.io/rfcs/3491-remove-implicit-features.html).

auxil cross?

Enables gfx-auxil

spirv_cross cross?