--- a/libpam-sys/build.rs	Mon Jun 30 22:56:26 2025 -0400
+++ b/libpam-sys/build.rs	Mon Jun 30 23:00:53 2025 -0400
@@ -8,6 +8,6 @@
     let pam_impl_strs: Vec<_> = PamImpl::iter().map(|e| format!("\"{:?}\"", e)).collect();
     let pam_impls = pam_impl_strs.join(",");
     // We use this for ctest. Don't do what we've done; just use cfg_pam_impl.
-    println!("cargo:check-cfg=cfg(_private_pam_impl_hack, values({pam_impls}))");
+    println!("cargo:rustc-check-cfg=cfg(_private_pam_impl_hack, values({pam_impls}))");
     println!("cargo:rustc-cfg=_private_pam_impl_hack=\"{:?}\"", PamImpl::CURRENT);
 }