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Revert "library/test: always enable unstable features for miri"

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This reverts commit 30d7ed4c47.
It should not be needed any more.
This commit is contained in:
Ralf Jung
2026-03-05 13:40:20 +01:00
parent 70d86e3abe
commit 4d314065a4
1 changed files with 4 additions and 9 deletions
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library/test/build.rs
+4 -9
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@@ -2,16 +2,11 @@ fn main() {
println!("cargo:rerun-if-changed=build.rs");
println!("cargo:rustc-check-cfg=cfg(enable_unstable_features)");
// Miri testing uses unstable features, so always enable that for its sysroot.
// Otherwise, only enable unstable if rustc looks like a nightly or dev build.
let enable_unstable_features = std::env::var("MIRI_CALLED_FROM_SETUP").is_ok() || {
let rustc = std::env::var("RUSTC").unwrap_or_else(|_| "rustc".into());
let version = std::process::Command::new(rustc).arg("-vV").output().unwrap();
let stdout = String::from_utf8(version.stdout).unwrap();
stdout.contains("nightly") || stdout.contains("dev")
};
let rustc = std::env::var("RUSTC").unwrap_or_else(|_| "rustc".into());
let version = std::process::Command::new(rustc).arg("-vV").output().unwrap();
let stdout = String::from_utf8(version.stdout).unwrap();
if enable_unstable_features {
if stdout.contains("nightly") || stdout.contains("dev") {
println!("cargo:rustc-cfg=enable_unstable_features");
}
}