2 use std::ffi::OsString;
4 use std::os::unix::process::CommandExt;
5 use std::path::PathBuf;
6 use std::process::Command;
9 let sysroot = PathBuf::from(env::current_exe().unwrap().parent().unwrap());
11 let cg_clif_dylib_path = sysroot.join(if cfg!(windows) { "bin" } else { "lib" }).join(
12 env::consts::DLL_PREFIX.to_string() + "rustc_codegen_cranelift" + env::consts::DLL_SUFFIX,
15 let mut args = std::env::args_os().skip(1).collect::<Vec<_>>();
16 args.push(OsString::from("-Cpanic=abort"));
17 args.push(OsString::from("-Zpanic-abort-tests"));
18 let mut codegen_backend_arg = OsString::from("-Zcodegen-backend=");
19 codegen_backend_arg.push(cg_clif_dylib_path);
20 args.push(codegen_backend_arg);
21 if !args.contains(&OsString::from("--sysroot")) {
22 args.push(OsString::from("--sysroot"));
23 args.push(OsString::from(sysroot.to_str().unwrap()));
26 // Ensure that the right toolchain is used
27 env::set_var("RUSTUP_TOOLCHAIN", env!("RUSTUP_TOOLCHAIN"));
30 Command::new("rustc").args(args).exec();
34 Command::new("rustc").args(args).spawn().unwrap().wait().unwrap().code().unwrap_or(1),