23 lines
748 B
Rust
23 lines
748 B
Rust
extern crate rustc_version;
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use rustc_version::{version_meta, Channel};
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fn main() {
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// Copied and adapted from
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// https://github.com/Kimundi/rustc-version-rs/blob/1d692a965f4e48a8cb72e82cda953107c0d22f47/README.md#example
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// Licensed under Apache-2.0 + MIT
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match version_meta().unwrap().channel {
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Channel::Stable => {
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println!("cargo:rustc-cfg=RUSTC_WITHOUT_SPECIALIZATION");
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}
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Channel::Beta => {
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println!("cargo:rustc-cfg=RUSTC_WITHOUT_SPECIALIZATION");
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}
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Channel::Nightly => {
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println!("cargo:rustc-cfg=RUSTC_WITH_SPECIALIZATION");
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}
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Channel::Dev => {
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println!("cargo:rustc-cfg=RUSTC_WITH_SPECIALIZATION");
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}
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}
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}
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