Remove unnecessary `extern crate` declarations. - Githubissues

georust / geo

Geospatial primitives and algorithms for Rust

https://crates.io/crates/geo

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Remove unnecessary `extern crate` declarations. #1068

Closed michaelkirk closed 10 months ago

michaelkirk commented 10 months ago

[x] I agree to follow the project's code of conduct.
[n/a] I added an entry to CHANGES.md if knowledge of this change could be valuable to users.

extern crate used to be needed for any dependency and to use macros. As of rust 2018, this is no longer true.

The remaining use cases we have for extern crate are rare:

importing macros into the global namespace for frequently used macros
for sysroot crates like alloc