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This is needed for cross-language LTO (bug 1512723). We don't want to block on waiting for 1.34's release, so we'll get a head start now, but we'll update to the final 1.34 release when available. Rust Forge estimates the release at 11 April. Differential Revision: https://phabricator.services.mozilla.com/D25851 --HG-- extra : moz-landing-system : lando
24 lines
909 B
Rust
24 lines
909 B
Rust
extern crate rustc_version;
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use rustc_version::{version, Version};
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fn main() {
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let ver = version().unwrap();
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let mut bootstrap = false;
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let max_oom_hook_version = Version::parse("1.35.0-alpha").unwrap();
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if ver >= Version::parse("1.28.0-alpha").unwrap() && ver < max_oom_hook_version {
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println!("cargo:rustc-cfg=feature=\"oom_with_hook\"");
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bootstrap = true;
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} else if std::env::var("MOZ_AUTOMATION").is_ok() {
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panic!("Builds on automation must use a version of rust for which we know how to hook OOM: want < {}, have {}",
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max_oom_hook_version, ver);
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}
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// This is a rather awful thing to do, but we're only doing it on
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// versions of rustc that are not going to change the unstable APIs
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// we use from under us, all being already released or beta.
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if bootstrap {
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println!("cargo:rustc-env=RUSTC_BOOTSTRAP=1");
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}
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}
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