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.