Lower cffi requirement, for earlier versions of PyPy.

davidblewett · davidblewett · commit b44a4c4c417a · 2016-11-21T13:22:19.000-05:00
We weren't using features specific to 1.7.0.
diff --git a/setup.py b/setup.py
@@ -25,8 +25,8 @@
     keywords=['regex', 'rust', 'dfa', 'automata', 'data_structures'],
     url='https://github.com/davidblewett/rure-python',
     setup_requires=[
-        'cffi>=1.7.0'],
-    install_requires=['cffi>=1.7.0'],
+        'cffi>=1.5.0'],
+    install_requires=['cffi>=1.5.0'],
     cffi_modules=['rure/_build_ffi.py:ffi'],
     distclass=RustDistribution,
     cmdclass={
