diff -r 93e213825746 setup.py
--- a/setup.py	Thu Feb 15 09:21:50 2018 +0100
+++ b/setup.py	Fri Feb 16 09:25:13 2018 +0100
@@ -2,6 +2,10 @@
 import subprocess
 import errno
 
+# on Windows we give up an always import setuptools to fix things for us
+if sys.platform == "win32":
+    import setuptools
+
 
 sources = ['c/_cffi_backend.c']
 libraries = ['ffi']