[Python-Dev] Help with the build system and my first patch

[Brett Cannon]

On Mon Jun 09 2014 at 2:07:22 AM, Steven Stewart-Gallus <
sstewartgallus00 at mylangara.bc.ca> wrote:

> Hello,
>
> I would like some help understanding the build system. I am currently
> working on an issue (http://bugs.python.org/issue21627) and plan to
> create some common functionality in Python/setcloexec.c and
> Include/setcloexec.h that is conditionally compiled in on POSIX
> systems and not on Windows systems. I need to extract this
> functionality out from _Py_set_inheritable because it needs to run in
> the dangerous context of right after a fork and I don't believe it can
> throw exceptions. How can I conditionally compile some library code
> for certain platforms only?
>

Do you mean other than potentially detecting something in the configure
script and using an #ifdef guard?
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