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rustbuild: Nicer error for host builds of targets #36442

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Merged
merged 1 commit into from
Sep 26, 2016
Merged

rustbuild: Nicer error for host builds of targets #36442

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6 changes: 5 additions & 1 deletion src/bootstrap/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -959,7 +959,11 @@ impl Build {
/// Returns the path to the C++ compiler for the target specified, may panic
/// if no C++ compiler was configured for the target.
fn cxx(&self, target: &str) -> &Path {
self.cxx[target].path()
match self.cxx.get(target) {
Some(p) => p.path(),
None => panic!("\n\ntarget `{}` is not configured as a host,
only as a target\n\n", target),
}
}

/// Returns flags to pass to the compiler to generate code for `target`.
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