1 files changed, 12 insertions, 0 deletions
diff --git a/src/rt/rust_builtin.cpp b/src/rt/rust_builtin.cpp
index 863e0a3a99e..4dde01d5f00 100644
--- a/src/rt/rust_builtin.cpp
+++ b/src/rt/rust_builtin.cpp
@@ -947,6 +947,18 @@ rust_get_exit_status_newrt() {
     return exit_status;
 }
 
+static lock_and_signal change_dir_lock;
+
+extern "C" CDECL void
+rust_take_change_dir_lock() {
+    global_args_lock.lock();
+}
+
+extern "C" CDECL void
+rust_drop_change_dir_lock() {
+    global_args_lock.unlock();
+}
+
 //
 // Local Variables:
 // mode: C++