# HG changeset patch
# User Gregory Szorc <gregory.szorc@gmail.com>
# Date 1489118392 28800
# Node ID 718a57e95a897f4ac407ae3733a7d41e87354acb
# Parent  198cd5ad9db8b887b0287a6d0a07ff51dccab214
setup: use setuptools on Windows (issue5400)

We've had a long, complicated history with setuptools. We want to
make it the universal default. But when we do, it breaks things.

`python setup.py build` is broken on Windows today. Forcing
the use of setuptools via FORCE_SETUPTOOLS=1 unbreaks things.

Since the previous bustage with making setuptools the default
was on !Windows, it seems safe to move ahead with the setuptools
transition on Windows. So this patch does that.

diff -r 198cd5ad9db8 -r 718a57e95a89 setup.py
--- a/setup.py	Thu Mar 09 19:41:40 2017 -0800
+++ b/setup.py	Thu Mar 09 19:59:52 2017 -0800
@@ -63,7 +63,10 @@
 import shutil
 import tempfile
 from distutils import log
-if 'FORCE_SETUPTOOLS' in os.environ:
+# We have issues with setuptools on some platforms and builders. Until
+# those are resolved, setuptools is opt-in except for platforms where
+# we don't have issues.
+if os.name == 'nt' or 'FORCE_SETUPTOOLS' in os.environ:
     from setuptools import setup
 else:
     from distutils.core import setup