1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/lint/auxiliary/unaligned_references_external_crate.rs b/src/test/ui/lint/auxiliary/unaligned_references_external_crate.rs
new file mode 100644
index 000000000..fb486c6b5
--- /dev/null
+++ b/src/test/ui/lint/auxiliary/unaligned_references_external_crate.rs
@@ -0,0 +1,28 @@
+#[macro_export]
+macro_rules! mac {
+    (
+        $(#[$attrs:meta])*
+        pub struct $ident:ident {
+            $(
+                $(#[$pin:ident])?
+                $field_vis:vis $field:ident: $field_ty:ty
+            ),+ $(,)?
+        }
+    ) => {
+        $(#[$attrs])*
+        pub struct $ident {
+            $(
+                $field_vis $field: $field_ty
+            ),+
+        }
+
+        const _: () = {
+            #[deny(unaligned_references)]
+            fn __f(this: &$ident) {
+                $(
+                    let _ = &this.$field;
+                )+
+            }
+        };
+    };
+}