Re: fix for py-libxml2 setup

[Paolo Vincenzo Olivo <vins%NetBSD.org@localhost>]

On 23/09/18 10:01AM, Greg Troxel wrote:
> As just mentioned on pkgsrc-users, py-libxml2 produces a broken package
> on older macOS.  The reason is that the python build picks up the native
> xml2 includes, which enable legacy ABI, while the pkgsrc xml2 does not.
> That happens because setup.py looks in random places for headers, and
> orders /usr/include before $prefix/usr/include.  There is code in pkgsrc
> to avoid some of this, but it seems bitrotted.
> 
> With this, py-libxml2 builds a valid python extension on older macOS.
> 
> What do people think?   I am inclined to wait until post branch, unless
> people that understand python better than me say this is right.
>

Hello greg; I remember facing the same issue on Slackware 15 while
building 2023Q2 packages, the workaround was indeed to patch the
setup.py.in. I wasn't uncertain whether this was an expected behavior
for pkgsrc or not, so didn't open a bug report.