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Fix linker detection for linker (drivers) with a version postfix (e.g. clang-12 instead of clang) #106489

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Merged
merged 1 commit into from
Jan 14, 2023
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Fix linker detection for linker (drivers) with a version postfix (e.g. clang-12 instead of clang) #106489

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11 changes: 10 additions & 1 deletion compiler/rustc_codegen_ssa/src/back/link.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1231,12 +1231,21 @@ pub fn linker_and_flavor(sess: &Session) -> (PathBuf, LinkerFlavor) {
sess.emit_fatal(errors::LinkerFileStem);
});

// Remove any version postfix.
let stem = stem
.rsplit_once('-')
.and_then(|(lhs, rhs)| rhs.chars().all(char::is_numeric).then_some(lhs))
.unwrap_or(stem);

// GCC can have an optional target prefix.
let flavor = if stem == "emcc" {
LinkerFlavor::EmCc
} else if stem == "gcc"
|| stem.ends_with("-gcc")
|| stem == "g++"
|| stem.ends_with("-g++")
|| stem == "clang"
|| stem.ends_with("-clang")
|| stem == "clang++"
{
LinkerFlavor::from_cli(LinkerFlavorCli::Gcc, &sess.target)
} else if stem == "wasm-ld" || stem.ends_with("-wasm-ld") {
Expand Down