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Unrolled build for rust-lang#118807
Rollup merge of rust-lang#118807 - SUPERCILEX:allo, r=the8472 Remove an allocation in min_stack
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library/std/src/sys_common/thread.rs

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@@ -8,7 +8,7 @@ pub fn min_stack() -> usize {
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0 => {}
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n => return n - 1,
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}
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let amt = env::var("RUST_MIN_STACK").ok().and_then(|s| s.parse().ok());
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let amt = env::var_os("RUST_MIN_STACK").and_then(|s| s.to_str().and_then(|s| s.parse().ok()));
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let amt = amt.unwrap_or(imp::DEFAULT_MIN_STACK_SIZE);
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// 0 is our sentinel value, so ensure that we'll never see 0 after

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