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Auto merge of #121426 - madsmtm:remove-cc-syslibroot, r=pnkfelix

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Remove redundant `-Wl,-syslibroot`

Since `-isysroot` is set, [Clang already passes this when invoking the linker](https://github.com/llvm/llvm-project/blob/llvmorg-17.0.6/clang/lib/Driver/ToolChains/Darwin.cpp#L439-L442).

See https://github.com/rust-lang/rust/pull/56833 for when the `-isysroot` was originally added, but didn't remove the unnecessary linker flag.

CC `@BlackHoleFox`
r? shepmaster
This commit is contained in:
bors 2024-04-12 18:16:47 +00:00
commit 22a2425c10
1 changed files with 7 additions and 1 deletions
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8
compiler/rustc_codegen_ssa/src/back/link.rs
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@ -2987,7 +2987,13 @@ fn add_apple_sdk(cmd: &mut dyn Linker, sess: &Session, flavor: LinkerFlavor) {
match flavor {
LinkerFlavor::Darwin(Cc::Yes, _) => {
cmd.args(&["-isysroot", &sdk_root, "-Wl,-syslibroot", &sdk_root]);
// Use `-isysroot` instead of `--sysroot`, as only the former
// makes Clang treat it as a platform SDK.
//
// This is admittedly a bit strange, as on most targets
// `-isysroot` only applies to include header files, but on Apple
// targets this also applies to libraries and frameworks.
cmd.args(&["-isysroot", &sdk_root]);
}
LinkerFlavor::Darwin(Cc::No, _) => {
cmd.args(&["-syslibroot", &sdk_root]);