diff --git a/Objects/setobject.c b/Objects/setobject.c
index 289d5d3..e94f920 100644
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -10,6 +10,10 @@
    All rights reserved.
 */
 
+#ifdef __SUNPRO_C
+#pragma error_messages (off,E_END_OF_LOOP_CODE_NOT_REACHED)
+#endif
+
 static PyObject *
 set_update(PySetObject *so, PyObject *other)
 {