rewrite missing-crate-dependency to rmake

Author: Oneirical

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -75,7 +75,6 @@ run-make/macos-deployment-target/Makefile
 run-make/macos-fat-archive/Makefile
 run-make/manual-link/Makefile
 run-make/min-global-align/Makefile
-run-make/missing-crate-dependency/Makefile
 run-make/native-link-modifier-bundle/Makefile
 run-make/native-link-modifier-whole-archive/Makefile
 run-make/no-alloc-shim/Makefile

tests/run-make/missing-crate-dependency/Makefile

@@ -0,0 +1,17 @@
+// A simple smoke test to check that rustc fails compilation
+// and outputs a helpful message when a dependency is missing
+// in a dependency chain.
+// See https://github.com/rust-lang/rust/issues/12146
+
+use run_make_support::{fs_wrapper, rust_lib_name, rustc};
+
+fn main() {
+    rustc().crate_type("rlib").input("crateA.rs").run();
+    rustc().crate_type("rlib").input("crateB.rs").run();
+    fs_wrapper::remove_file(rust_lib_name("crateA"));
+    // Ensure that crateC fails to compile, as the crateA dependency is missing.
+    rustc()
+        .input("crateC.rs")
+        .run_fail()
+        .assert_stderr_contains("can't find crate for `crateA` which `crateB` depends on");
+}