pycparser 2.18 and 2.19 are broken

[jdavid]

$ pytest
============================================================================================================ test session starts =============================================================================================================
platform linux -- Python 3.6.5, pytest-4.0.2, py-1.7.0, pluggy-0.8.0
rootdir: /home/jdavid/sandboxes/pygit2, inifile:
collected 0 items / 28 errors                                                                                                                                                                                                                

=================================================================================================================== ERRORS ===================================================================================================================
venv36/lib/python3.6/site-packages/cffi-1.11.5-py3.6-linux-x86_64.egg/cffi/api.py:174: in _typeof
    result = self._parsed_types[cdecl]
E   KeyError: 'int (*git_transport_certificate_check_cb)(git_cert *cert, int valid, const char *host, void *payload)'

During handling of the above exception, another exception occurred:
venv36/lib/python3.6/site-packages/cffi-1.11.5-py3.6-linux-x86_64.egg/cffi/cparser.py:276: in _parse
    ast = _get_parser().parse(fullcsource)
venv36/lib/python3.6/site-packages/pycparser-2.18-py3.6.egg/pycparser/c_parser.py:152: in parse
    debug=debuglevel)
venv36/lib/python3.6/site-packages/pycparser-2.18-py3.6.egg/pycparser/ply/yacc.py:331: in parse
    return self.parseopt_notrack(input, lexer, debug, tracking, tokenfunc)
venv36/lib/python3.6/site-packages/pycparser-2.18-py3.6.egg/pycparser/ply/yacc.py:1199: in parseopt_notrack
    tok = call_errorfunc(self.errorfunc, errtoken, self)
venv36/lib/python3.6/site-packages/pycparser-2.18-py3.6.egg/pycparser/ply/yacc.py:193: in call_errorfunc
    r = errorfunc(token)
venv36/lib/python3.6/site-packages/pycparser-2.18-py3.6.egg/pycparser/c_parser.py:1761: in p_error
    column=self.clex.find_tok_column(p)))
venv36/lib/python3.6/site-packages/pycparser-2.18-py3.6.egg/pycparser/plyparser.py:66: in _parse_error
    raise ParseError("%s: %s" % (coord, msg))
E   pycparser.plyparser.ParseError: <cdef source string>:2:7: before: git_transport_certificate_check_cb

[jdavid]

https://travis-ci.org/libgit2/pygit2/jobs/435250050

[mgorny]

Now also reported upstream (eliben/pycparser#305) but apparently upstream wants somebody else to reduce it.