LP #634942: Only require ``nt_svcutils`` on Windows.

buildout.cfg

@@ -63,7 +63,6 @@ eggs =
     Record
     RestrictedPython
     initgroups
-    nt_svcutils
     tempstorage
     zExceptions
     zLOG

doc/CHANGES.rst

@@ -14,6 +14,8 @@ Bugs Fixed
 - Fixed ``testZODBCompat`` tests in ZopeTestCase to match modern ZODB
   semantics.
 
+- LP #634942: Only require ``nt_svcutils`` on Windows.
+
 Features Added
 ++++++++++++++
 

setup.py

@@ -13,8 +13,14 @@
 ##############################################################################
 
 import os
+import sys
 from setuptools import setup, find_packages
 
+additional_install_requires = []
+
+if sys.platform[:3].lower() == "win":
+    additional_install_requires += ['nt_svcutils']
+
 
 setup(name='Zope2',
     version='2.13.0a5.dev',
@@ -56,7 +62,6 @@ setup(name='Zope2',
       'ZopeUndo',
       'docutils',
       'initgroups',
-      'nt_svcutils',
       'pytz',
       'setuptools',
       'tempstorage',
@@ -106,7 +111,7 @@ setup(name='Zope2',
       'Products.MIMETools',
       'Products.PythonScripts',
       'Products.StandardCacheManagers',
-    ],
+    ] + additional_install_requires,
 
     include_package_data=True,
     zip_safe=False,