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rustc_llvm: add Windows system libs only when cross-compiling from Windows

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This obviously doesn't work when cross-compiling from Linux.

Split out from: https://github.com/rust-lang/rust/pull/140772
This commit is contained in:
Mateusz Mikuła 2025-04-27 13:10:06 +02:00
parent e0d014a3df
commit 81f61acf77
1 changed files with 2 additions and 2 deletions
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4
compiler/rustc_llvm/build.rs
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@ -228,10 +228,10 @@ fn main() {
let mut cmd = Command::new(&llvm_config);
cmd.arg(llvm_link_arg).arg("--libs");
// Don't link system libs if cross-compiling unless targeting Windows.
// Don't link system libs if cross-compiling unless targeting Windows from Windows host.
// 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") {
if !is_crossed || target.contains("windows") && host.contains("windows") {
cmd.arg("--system-libs");
}