build_system/build_backend.rs

   1 use std::env;
   2 use std::process::Command;
   3
   4 pub(crate) fn build_backend(channel: &str) -> String {
   5     let mut cmd = Command::new("cargo");
   6     cmd.arg("build");
   7
   8     match channel {
   9         "debug" => {}
  10         "release" => {
  11             cmd.arg("--release");
  12         }
  13         _ => unreachable!(),
  14     }
  15
  16     if cfg!(unix) {
  17         if cfg!(target_os = "macos") {
  18             cmd.env(
  19                 "RUSTFLAGS",
  20                 "-Csplit-debuginfo=unpacked \
  21                 -Clink-arg=-Wl,-rpath,@loader_path/../lib \
  22                 -Zosx-rpath-install-name"
  23                     .to_string()
  24                     + env::var("RUSTFLAGS").as_deref().unwrap_or(""),
  25             );
  26         } else {
  27             cmd.env(
  28                 "RUSTFLAGS",
  29                 "-Clink-arg=-Wl,-rpath=$ORIGIN/../lib ".to_string()
  30                     + env::var("RUSTFLAGS").as_deref().unwrap_or(""),
  31             );
  32         }
  33     }
  34
  35     eprintln!("[BUILD] rustc_codegen_cranelift");
  36     crate::utils::spawn_and_wait(cmd);
  37
  38     crate::rustc_info::get_file_name("rustc_codegen_cranelift", "dylib")
  39 }