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set rustc dylib on manually constructed rustc command #136309

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merged 1 commit into from
Feb 4, 2025
Merged

set rustc dylib on manually constructed rustc command #136309

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6 changes: 5 additions & 1 deletion src/bootstrap/src/core/builder/cargo.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -653,14 +653,18 @@ impl Builder<'_> {
// Build proc macros both for the host and the target unless proc-macros are not
// supported by the target.
if target != compiler.host && cmd_kind != Kind::Check {
let error = command(self.rustc(compiler))
let mut rustc_cmd = command(self.rustc(compiler));
self.add_rustc_lib_path(compiler, &mut rustc_cmd);

let error = rustc_cmd
.arg("--target")
.arg(target.rustc_target_arg())
.arg("--print=file-names")
.arg("--crate-type=proc-macro")
.arg("-")
.run_capture(self)
.stderr();

let not_supported = error
.lines()
.any(|line| line.contains("unsupported crate type `proc-macro`"));
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