[Python-Dev] use cases for "python-config" versus "pkg-config python"

[Brett Cannon]

Patches sent to python-dev are typically ignored. Could you open an issue
on bugs.python.org and upload it there?

On Mon Jun 02 2014 at 2:20:43 PM, Michael Haubenwallner <
michael.haubenwallner at ssi-schaefer.com> wrote:

> Hi,
>
> following up myself with a patch proposal:
>
> On 05/28/2014 04:51 PM, Michael Haubenwallner wrote:
> > Stumbling over problems on AIX (Modules/python.exp not found) building
> libxml2 as python module
> > let me wonder about the intended use-cases for 'python-config' and
> 'pkg-config python'.
> >
> > FWIW, I can see these distinct use cases here, and I'm kindly asking if
> I got them right:
> >
> > * Build an application containing a python interpreter (like python$EXE
> itself):
> >   + link against libpython.so
> >   + re-export symbols from libpython.so for python-modules
> (platform-specific)
> >   + This is similar to build against any other library, thus
> >   = 'python.pc' is installed (for 'pkg-config python').
> >
> > * Build a python-module (like build/lib.<platform>-<pyver>/*.so):
> >   + no need to link against libpython.so, instead
> >   + expect symbols from libpython.so to be available at runtime,
> platform-specific either as
> >   + undefined symbols at build-time (Linux, others), or
> >   + a list of symbols to import from "the main executable" (AIX)
> >   + This is specific to python-modules, thus
> >   = 'python-config' is installed.
> >
>
> Based on these use-cases, I'm on a trip towards a patch improving AIX
> support here,
> where the attached one is a draft against python-tip (next step is to have
> python-config
> not print $LIBS, but $LINKFORMODULE only).
>
> Thoughts?
>
> Thank you!
> /haubi/
>
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