diff --git a/src/test/auxiliary/issue_2242_a.rs b/src/test/auxiliary/issue_2242_a.rs
new file mode 100644
index 00000000000..e7947cf583a
--- /dev/null
+++ b/src/test/auxiliary/issue_2242_a.rs
@@ -0,0 +1,10 @@
+#[link(name = "a", vers = "0.1")];
+#[crate_type = "lib"];
+
+iface to_str {
+    fn to_str() -> str;
+}
+
+impl of to_str for str {
+    fn to_str() -> str { self }
+}
diff --git a/src/test/auxiliary/issue_2242_b.rs b/src/test/auxiliary/issue_2242_b.rs
new file mode 100644
index 00000000000..6371e55dde4
--- /dev/null
+++ b/src/test/auxiliary/issue_2242_b.rs
@@ -0,0 +1,9 @@
+#[link(name = "b", vers = "0.1")];
+#[crate_type = "lib"];
+
+use a;
+import a::to_str;
+
+impl of to_str for int {
+    fn to_str() -> str { #fmt("%?", self) }
+}
diff --git a/src/test/auxiliary/issue_2242_c.rs b/src/test/auxiliary/issue_2242_c.rs
new file mode 100644
index 00000000000..2497be8a42e
--- /dev/null
+++ b/src/test/auxiliary/issue_2242_c.rs
@@ -0,0 +1,10 @@
+#[link(name = "c", vers = "0.1")];
+#[crate_type = "lib"];
+
+use a;
+
+import a::to_str;
+
+impl of to_str for bool {
+    fn to_str() -> str { #fmt("%b", self) }
+}
diff --git a/src/test/run-pass/issue-2242-d.rs b/src/test/run-pass/issue-2242-d.rs
new file mode 100644
index 00000000000..c6f2cc99e33
--- /dev/null
+++ b/src/test/run-pass/issue-2242-d.rs
@@ -0,0 +1,17 @@
+// xfail-test
+// aux-build:issue_2242_a.rs
+// aux-build:issue_2242_b.rs
+// aux-build:issue_2242_c.rs
+
+use a;
+use b;
+use c;
+
+import b::to_str;
+import c::to_str;
+
+fn main() {
+    io::println("foo".to_str());
+    io::println(1.to_str());
+    io::println(true.to_str());
+}