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Add system libs for LLVM when cross compiling for Windows #130398

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Sep 16, 2024
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Add system libs for LLVM when cross compiling for Windows #130398

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5 changes: 4 additions & 1 deletion compiler/rustc_llvm/build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -220,7 +220,10 @@ fn main() {
let mut cmd = Command::new(&llvm_config);
cmd.arg(llvm_link_arg).arg("--libs");

if !is_crossed {
// Don't link system libs if cross-compiling unless targetting Windows.
// On Windows system DLLs aren't linked directly, instead import libraries are used.
// These import libraries are independent of the host.
if !is_crossed || target.contains("windows") {
cmd.arg("--system-libs");
}

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