Horton

Re: Replace uses of deprecated Python module distutils.sysconfig

Peter Eisentraut <peter.eisentraut@enterprisedb.com>

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From: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
To: Andres Freund <andres@anarazel.de>, Tom Lane <tgl@sss.pgh.pa.us>
Cc: Andrew Dunstan <andrew@dunslane.net>, pgsql-hackers@lists.postgresql.org
Date: 2022-01-24T20:48:21Z
Lists: pgsql-hackers 
On 24.01.22 03:53, Andres Freund wrote:
> On 2022-01-23 21:31:52 -0500, Tom Lane wrote:
>> Andres Freund<andres@anarazel.de>  writes:
>>> No, not really. There generally seems to be very little documentation about
>>> what one is supposed to use when embedding python (rather than building a
>>> python module). The only thing I really see is:
>>> https://docs.python.org/3/extending/embedding.html#compiling-and-linking-under-unix-like-systems
>>> which says to use python-config.
>> Yeah :-(.  I don't really want to go there, because it will break
>> existing setups.
> Yea, it seems to introduce a whole set of new complexities (finding python
> from python-config, mismatching python-config and explicitly specified python,
> ...). And it doesn't exist on windows either :(.

Also note that python-config is itself a Python script that uses 
sysconfig and includes code like this:

     elif opt in ('--includes', '--cflags'):
         flags = ['-I' + sysconfig.get_path('include'),
                  '-I' + sysconfig.get_path('platinclude')]

So this would just do the same thing we are already doing anyway.

Commits

  1. Replace use of deprecated Python module distutils.sysconfig, take 2.

  2. Temporarily add some information about python include paths to configure.

  3. Revert "Make configure prefer python3 to plain python."

  4. Make configure prefer python3 to plain python.

  5. Replace use of deprecated Python module distutils.sysconfig