--- Python-2.7.14/setup.py.orig	2017-10-17 19:40:39.480898400 +0200
+++ Python-2.7.14/setup.py	2017-10-17 19:46:31.369088600 +0200
@@ -1348,7 +1352,7 @@
             if dbm_args:
                 dbm_order = [arg.split('=')[-1] for arg in dbm_args][-1].split(":")
             else:
-                dbm_order = "ndbm:gdbm:bdb".split(":")
+                dbm_order = []
             dbmext = None
             for cand in dbm_order:
                 if cand == "ndbm":