56 lines
1.6 KiB
Rust
56 lines
1.6 KiB
Rust
use std::env;
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use std::path::{Path, PathBuf};
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use std::process::Command;
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pub(crate) fn build_backend(
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channel: &str,
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host_triple: &str,
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use_unstable_features: bool,
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) -> PathBuf {
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let mut cmd = Command::new("cargo");
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cmd.arg("build").arg("--target").arg(host_triple);
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cmd.env("CARGO_BUILD_INCREMENTAL", "true"); // Force incr comp even in release mode
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let mut rustflags = env::var("RUSTFLAGS").unwrap_or_default();
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if env::var("CI").as_ref().map(|val| &**val) == Ok("true") {
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// Deny warnings on CI
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rustflags += " -Dwarnings";
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// Disabling incr comp reduces cache size and incr comp doesn't save as much on CI anyway
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cmd.env("CARGO_BUILD_INCREMENTAL", "false");
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}
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if use_unstable_features {
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cmd.arg("--features").arg("unstable-features");
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}
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match channel {
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"debug" => {}
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"release" => {
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cmd.arg("--release");
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}
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_ => unreachable!(),
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}
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// Set the rpath to make the cg_clif executable find librustc_codegen_cranelift without changing
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// LD_LIBRARY_PATH
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if cfg!(unix) {
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if cfg!(target_os = "macos") {
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rustflags += " -Csplit-debuginfo=unpacked \
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-Clink-arg=-Wl,-rpath,@loader_path/../lib \
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-Zosx-rpath-install-name";
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} else {
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rustflags += " -Clink-arg=-Wl,-rpath=$ORIGIN/../lib ";
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}
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}
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cmd.env("RUSTFLAGS", rustflags);
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eprintln!("[BUILD] rustc_codegen_cranelift");
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crate::utils::spawn_and_wait(cmd);
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Path::new("target").join(host_triple).join(channel)
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}
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