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28 lines
736 B
28 lines
736 B
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extern crate rustc_version;
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use rustc_version::{version, version_meta, Channel};
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fn main() {
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// Assert we haven't travelled back in time
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assert!(version().unwrap().major >= 1);
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println!("cargo::rustc-check-cfg=cfg(nightly)");
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println!("cargo::rustc-check-cfg=cfg(stable)");
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// Set cfg flags depending on release channel
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match version_meta().unwrap().channel {
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Channel::Stable => {
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println!("cargo:rustc-cfg=stable");
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}
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Channel::Beta => {
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println!("cargo:rustc-cfg=beta");
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}
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Channel::Nightly => {
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println!("cargo:rustc-cfg=nightly");
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}
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Channel::Dev => {
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println!("cargo:rustc-cfg=dev");
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}
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}
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}
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