From 007587aaaddccdf892939f905224b4ba618f58ca Mon Sep 17 00:00:00 2001
From: Jason Madden <jamadden@gmail.com>
Date: Mon, 12 Feb 2018 16:38:01 -0600
Subject: [PATCH] Whoops, fix definition of CFFI_BACKEND in tests; led to some
 test errors on Travis.

---
 src/greentest/greentest/sysinfo.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/greentest/greentest/sysinfo.py b/src/greentest/greentest/sysinfo.py
index 0df18f7dc..bce317595 100644
--- a/src/greentest/greentest/sysinfo.py
+++ b/src/greentest/greentest/sysinfo.py
@@ -31,7 +31,7 @@
 
 # XXX: Formalize this better
 LIBUV = 'libuv' in gevent.core.loop.__module__ # pylint:disable=no-member
-CFFI_BACKEND = bool(os.getenv('GEVENT_CORE_CFFI_ONLY')) or PYPY
+CFFI_BACKEND = PYPY or LIBUV or 'cffi' in os.getenv('GEVENT_LOOP', '')
 
 if '--debug-greentest' in sys.argv:
     sys.argv.remove('--debug-greentest')