1 files changed, 3 insertions, 0 deletions
diff --git a/intern.h b/intern.h
index 4c84be41f5..a5a3400366 100644
--- a/intern.h
+++ b/intern.h
@@ -132,6 +132,9 @@ void rb_thread_fd_close _((int));
 int rb_thread_alone _((void));
 void rb_thread_sleep _((int));
 void rb_thread_sleep_forever _((void));
+VALUE rb_thread_stop _((void));
+VALUE rb_thread_wakeup _((VALUE));
+VALUE rb_thread_run _((VALUE));
 VALUE rb_thread_create _((VALUE (*)(), void*));
 int rb_thread_scope_shared_p _((void));
 void rb_thread_interrupt _((void));