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Rollup merge of #56349 - davidtwco:issue-55396-inference-extension, r=nagisa

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rustc 1.30.0's linker flavor inference is a non-backwards compat change to -Clinker

Part of #55396.

This commit modifies linker flavor inference to only remove the extension
to the linker when performing inference if that extension is a 'exe'.

r? @nagisa
cc @alexcrichton @japaric
This commit is contained in:
kennytm 2018-12-01 01:06:02 +08:00
commit cb9add6303
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1 changed files with 5 additions and 1 deletions
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6
src/librustc_codegen_ssa/back/link.rs
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@ -161,7 +161,11 @@ pub fn linker_and_flavor(sess: &Session) -> (PathBuf, LinkerFlavor) {
LinkerFlavor::Lld(_) => "lld",
}), flavor)),
(Some(linker), None) => {
let stem = linker.file_stem().and_then(|stem| stem.to_str()).unwrap_or_else(|| {
let stem = if linker.extension().and_then(|ext| ext.to_str()) == Some("exe") {
linker.file_stem().and_then(|stem| stem.to_str())
} else {
linker.to_str()
}.unwrap_or_else(|| {
sess.fatal("couldn't extract file stem from specified linker");
}).to_owned();