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Showing content from https://mail.python.org/pipermail/python-dev/2015-March/138917.html below:

[Python-Dev] libffi embedded in CPython

[Python-Dev] libffi embedded in CPythonZachary Ware zachary.ware at gmail.com
Wed Mar 25 14:36:35 CET 2015
On Mar 25, 2015 4:22 AM, "Paul Moore" <p.f.moore at gmail.com> wrote:
>
> On 25 March 2015 at 09:09, Antoine Pitrou <solipsis at pitrou.net> wrote:
> > I'm not sure we guarantee anything. In any case, it's only a small
> > proportion of the kind of crashes you can get by messing the signature.
>
> Fair point. I guess what I'm asking is, would it be OK to remove the
> code that checks for a stack size discrepancy and raises ValueError,
> and the tests that verify this behaviour, as part of switching to
> using upstream libffi directly?
>
> On a related note, is there any information available on how the
> "externals" repo is maintained? In particular, should things in there
> be exact copies of upstream, or is it OK to include extra data (in
> this case, the results of running "configure" for the Windows build)?
> It works for me either way, it's just a matter of how the build
> process would be structured and maintained.

Its not extremely clear how it's "supposed to be" done; look at the
differences between how we handle OpenSSL and Tcl/Tk, for example. One way
or the other, though, we will store the configure output so that our build
doesn't depend on any more than it absolutely has to.

--
Zach
On a phone
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