1 files changed, 10 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-18804/auxiliary/lib.rs b/tests/ui/issues/issue-18804/auxiliary/lib.rs
new file mode 100644
index 000000000..e29d48285
--- /dev/null
+++ b/tests/ui/issues/issue-18804/auxiliary/lib.rs
@@ -0,0 +1,10 @@
+#![crate_type = "rlib"]
+#![feature(linkage)]
+
+pub fn foo<T>() -> *const () {
+    extern "C" {
+        #[linkage = "extern_weak"]
+        static FOO: *const ();
+    }
+    unsafe { FOO }
+}