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

2014年5月28日 09:06:12 -0700

Hello!
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.
Thank you!
/haubi/
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