1 files changed, 5 insertions, 0 deletions
diff --git a/eval.c b/eval.c
index 014ee9d9d3..a118e7e615 100644
--- a/eval.c
+++ b/eval.c
@@ -11884,6 +11884,11 @@ rb_thread_cancel_timer()
 
 #else  /* !(_THREAD_SAFE || HAVE_SETITIMER) */
 int rb_thread_tick = THREAD_TICK;
+
+void
+rb_thread_cancel_timer()
+{
+}
 #endif
 
 static VALUE