port no-cdylib-as-rdylib test

Oneirical · Oneirical · commit 1f61cc3078ce · 2024-05-14T17:02:20.000-04:00
diff --git a/src/tools/tidy/src/allowed_run_make_makefiles.txt b/src/tools/tidy/src/allowed_run_make_makefiles.txt
@@ -185,7 +185,6 @@ run-make/native-link-modifier-whole-archive/Makefile
 run-make/no-alloc-shim/Makefile
 run-make/no-builtins-attribute/Makefile
 run-make/no-builtins-lto/Makefile
-run-make/no-cdylib-as-rdylib/Makefile
 run-make/no-duplicate-libs/Makefile
 run-make/no-intermediate-extras/Makefile
 run-make/obey-crate-type-flag/Makefile
diff --git a/tests/run-make/no-cdylib-as-rdylib/Makefile b/tests/run-make/no-cdylib-as-rdylib/Makefile
diff --git a/tests/run-make/no-cdylib-as-rdylib/rmake.rs b/tests/run-make/no-cdylib-as-rdylib/rmake.rs
@@ -0,0 +1,16 @@
+// This test produces an rlib and a cdylib from bar.rs.
+// Then, foo.rs attempts to link to the bar library.
+// If the test passes, that means rustc favored the rlib and ignored the cdylib.
+// If the test fails, that is because the cdylib was picked, which does not export
+// any Rust symbols.
+// See https://github.com/rust-lang/rust/pull/113695
+
+//@ ignore-cross-compile
+
+use run_make_support::{run, rustc};
+
+fn main() {
+    rustc().input("bar.rs").crate_type("rlib").crate_type("cdylib").run();
+    rustc().input("foo.rs").arg("-Cprefer-dynamic").run();
+    run("foo");
+}
