[pypy-dev] distutils configuration
dcallahan at fb.com
Wed Oct 4 08:52:33 EDT 2017
I need to adjust the default configuration used by “distutils” for compilation.
In my default build of branch release-pypy3.5-5.x, the toplevel “distutils.sysconfig” dispatches as follows:
if '__pypy__' in sys.builtin_module_names:
from distutils.sysconfig_pypy import *
from distutils.sysconfig_pypy import _config_vars # needed by setuptools
and sysconfig_pypy.py unconditionally sets some configuration variables such as “CC” and “LDSHARED”.
CPython reads from a configuration file which can be change with an environment variable and it is this technique we use. This does not yet seem supported in PyPy’s alternate implementation “distutils.sysconfig_cpython.py”
Generally, why are there are two implementations of sysconfig and what motivates the default choice?
What changes are recommended to allow a configuration file here?
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