1 files changed, 2 insertions, 0 deletions
diff --git a/intern.h b/intern.h
index 0dc3bffe55..47da14bb7a 100644
--- a/intern.h
+++ b/intern.h
@@ -207,8 +207,10 @@ void rb_thread_sleep _((int));
 void rb_thread_sleep_forever _((void));
 VALUE rb_thread_stop _((void));
 VALUE rb_thread_wakeup _((VALUE));
+VALUE rb_thread_wakeup_alive _((VALUE));
 VALUE rb_thread_run _((VALUE));
 VALUE rb_thread_kill _((VALUE));
+VALUE rb_thread_alive_p _((VALUE));
 VALUE rb_thread_create _((VALUE (*)(ANYARGS), void*));
 void rb_thread_interrupt _((void));
 void rb_thread_trap_eval _((VALUE, int, int));