18 lines
561 B
Rust
18 lines
561 B
Rust
extern crate rustc_version;
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use rustc_version::{version, version_meta, Channel, Version};
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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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// Check for a minimum version
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if version().unwrap() >= Version::parse("1.36.0").unwrap() {
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println!("cargo:rustc-cfg=fieldoffset_maybe_uninit");
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println!("cargo:rustc-cfg=fieldoffset_has_alloc");
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}
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if version_meta().unwrap().channel == Channel::Nightly {
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println!("cargo:rustc-cfg=fieldoffset_assert_in_const_fn");
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}
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}
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