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rustbuild: Pass ccache to build scripts #48059

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Feb 10, 2018
Merged

rustbuild: Pass ccache to build scripts #48059

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27 changes: 22 additions & 5 deletions src/bootstrap/builder.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -600,9 +600,25 @@ impl<'a> Builder<'a> {
//
// FIXME: the guard against msvc shouldn't need to be here
if !target.contains("msvc") {
let cc = self.cc(target);
cargo.env(format!("CC_{}", target), cc)
.env("CC", cc);
let ccache = self.config.ccache.as_ref();
let ccacheify = |s: &Path| {
let ccache = match ccache {
Some(ref s) => s,
None => return s.display().to_string(),
};
// FIXME: the cc-rs crate only recognizes the literal strings
// `ccache` and `sccache` when doing caching compilations, so we
// mirror that here. It should probably be fixed upstream to
// accept a new env var or otherwise work with custom ccache
// vars.
match &ccache[..] {
"ccache" | "sccache" => format!("{} {}", ccache, s.display()),
_ => s.display().to_string(),
}
};
let cc = ccacheify(&self.cc(target));
cargo.env(format!("CC_{}", target), &cc)
.env("CC", &cc);

let cflags = self.cflags(target).join(" ");
cargo.env(format!("CFLAGS_{}", target), cflags.clone())
Expand All @@ -617,8 +633,9 @@ impl<'a> Builder<'a> {
}

if let Ok(cxx) = self.cxx(target) {
cargo.env(format!("CXX_{}", target), cxx)
.env("CXX", cxx)
let cxx = ccacheify(&cxx);
cargo.env(format!("CXX_{}", target), &cxx)
.env("CXX", &cxx)
.env(format!("CXXFLAGS_{}", target), cflags.clone())
.env("CXXFLAGS", cflags);
}
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