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bootstrap: -Zjson-target-spec for synthetic targets #154428

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Merged
rust-bors merged 1 commit into from
Mar 28, 2026
+8 −1
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bootstrap: -Zjson-target-spec for synthetic targets #154428

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9 changes: 8 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 @@ -122,6 +122,9 @@ impl Cargo {
cmd_kind: Kind,
) -> Cargo {
let mut cargo = builder.cargo(compiler, mode, source_type, target, cmd_kind);
if target.synthetic {
cargo.arg("-Zjson-target-spec");
}

match cmd_kind {
// No need to configure the target linker for these command types.
Expand Down Expand Up @@ -165,7 +168,11 @@ impl Cargo {
target: TargetSelection,
cmd_kind: Kind,
) -> Cargo {
builder.cargo(compiler, mode, source_type, target, cmd_kind)
let mut cargo = builder.cargo(compiler, mode, source_type, target, cmd_kind);
if target.synthetic {
cargo.arg("-Zjson-target-spec");
}
cargo
}

pub fn rustdocflag(&mut self, arg: &str) -> &mut Cargo {
Expand Down
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