- updated virtualenv patch: it appears there is a mismatch between
virtualenv which always creates only arch specific directory structure
while distutils.sysconfig.get_python_lib() returns arch independent
directory under python 3.8 (share vs lib). build system assumes those
direcotries already exist and fails to create new file in virtualenv.
try to workaround the issue by getting arch dependent directory with
distutils.sysconfig.get_python_lib() to match what virtualenv does