2 use std::os::unix::process::CommandExt;
3 use std::path::PathBuf;
4 use std::process::{Command, Stdio};
7 if env::var("RUSTC_WRAPPER").map_or(false, |wrapper| wrapper.contains("sccache")) {
9 "\x1b[1;93m=== Warning: Unsetting RUSTC_WRAPPER to prevent interference with sccache ===\x1b[0m"
11 env::remove_var("RUSTC_WRAPPER");
14 let sysroot = PathBuf::from(env::current_exe().unwrap().parent().unwrap());
16 env::set_var("RUSTC", sysroot.join("bin/cg_clif".to_string() + env::consts::EXE_SUFFIX));
18 let mut rustdoc_flags = env::var("RUSTDOCFLAGS").unwrap_or(String::new());
19 rustdoc_flags.push_str(" -Cpanic=abort -Zpanic-abort-tests -Zcodegen-backend=");
20 rustdoc_flags.push_str(
22 .join(if cfg!(windows) { "bin" } else { "lib" })
24 env::consts::DLL_PREFIX.to_string()
25 + "rustc_codegen_cranelift"
26 + env::consts::DLL_SUFFIX,
31 rustdoc_flags.push_str(" --sysroot ");
32 rustdoc_flags.push_str(sysroot.to_str().unwrap());
33 env::set_var("RUSTDOCFLAGS", rustdoc_flags);
35 let default_sysroot = Command::new("rustc")
36 .stderr(Stdio::inherit())
37 .args(&["--print", "sysroot"])
41 let default_sysroot = std::str::from_utf8(&default_sysroot).unwrap().trim();
43 let extra_ld_lib_path =
44 default_sysroot.to_string() + ":" + sysroot.join("lib").to_str().unwrap();
45 if cfg!(target_os = "macos") {
48 env::var("DYLD_LIBRARY_PATH").unwrap_or(String::new()) + ":" + &extra_ld_lib_path,
50 } else if cfg!(unix) {
53 env::var("LD_LIBRARY_PATH").unwrap_or(String::new()) + ":" + &extra_ld_lib_path,
57 // Ensure that the right toolchain is used
58 env::set_var("RUSTUP_TOOLCHAIN", env!("RUSTUP_TOOLCHAIN"));
60 let args: Vec<_> = match env::args().nth(1).as_deref() {
64 env::var("RUSTFLAGS").unwrap_or(String::new()) + " -Cprefer-dynamic",
66 std::array::IntoIter::new(["rustc".to_string()])
67 .chain(env::args().skip(2))
68 .chain(["--".to_string(), "-Cllvm-args=mode=jit".to_string()])
74 env::var("RUSTFLAGS").unwrap_or(String::new()) + " -Cprefer-dynamic",
76 std::array::IntoIter::new(["rustc".to_string()])
77 .chain(env::args().skip(2))
78 .chain(["--".to_string(), "-Cllvm-args=mode=jit-lazy".to_string()])
81 _ => env::args().skip(1).collect(),
84 Command::new("cargo").args(args).exec();