1 files changed, 9 insertions, 0 deletions
diff --git a/vendor/lock_api/build.rs b/vendor/lock_api/build.rs
new file mode 100644
index 00000000..7aeaabdf
--- /dev/null
+++ b/vendor/lock_api/build.rs
@@ -0,0 +1,9 @@
+fn main() {
+    let cfg = autocfg::new();
+
+    println!("cargo:rerun-if-changed=build.rs");
+    println!("cargo:rustc-check-cfg=cfg(has_const_fn_trait_bound)");
+    if cfg.probe_rustc_version(1, 61) {
+        println!("cargo:rustc-cfg=has_const_fn_trait_bound");
+    }
+}