vendor/parking_lot_core/build.rs

   1 // Automatically detect tsan in a way that's compatible with both stable (which
   2 // doesn't support sanitizers) and nightly (which does). Works because build
   3 // scripts gets `cfg` info, even if the cfg is unstable.
   4 fn main() {
   5     println!("cargo:rerun-if-changed=build.rs");
   6     let santizer_list = std::env::var("CARGO_CFG_SANITIZE").unwrap_or_default();
   7     if santizer_list.contains("thread") {
   8         println!("cargo:rustc-cfg=tsan_enabled");
   9     }
  10 }