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-rw-r--r--src/rt/rust_builtin.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/rt/rust_builtin.cpp b/src/rt/rust_builtin.cpp
index 8b179b92db8..32eb4a685d7 100644
--- a/src/rt/rust_builtin.cpp
+++ b/src/rt/rust_builtin.cpp
@@ -109,6 +109,11 @@ unsupervise() {
     task->unsupervise();
 }
 
+extern "C" CDECL type_desc*
+get_type_desc(void *unused_task, type_desc* t) {
+    return t;
+}
+
 extern "C" CDECL void
 vec_reserve_shared(type_desc* ty, rust_vec** vp,
                    size_t n_elts) {