Fix multiple sources arguments passed to setuptools (!60) · Merge requests · PyPy / cffi

Created originally on Bitbucket by chrippa (Christopher Rosell)

Was already merged in Bitbucket before import, marked as merged by the import user

This PR fixes the following error when passing a sources argument to ffi.set_source:

TypeError: type object got multiple values for keyword argument 'sources'

Fix multiple sources arguments passed to setuptools