diff --git a/setupext.py b/setupext.py
index 92c456bab..ce2c5fbad 100644
--- a/setupext.py
+++ b/setupext.py
@@ -58,6 +58,8 @@ def check_for_openmp():
     Robitaille and Curtis McCully.
     """
 
+    return False
+
     # See https://bugs.python.org/issue25150
     if sys.version_info[:3] == (3, 5, 0):
         return False