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Date: Wed, 16 Sep 2015 23:55:46 +0200 (CEST)
From: Roland Lutz <rlutz AT hedmen DOT org>
To: "Hannu Vuolasaho (vuokko AT msn DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Subject: RE: [geda-user] New experimental netlist features
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On Thu, 17 Sep 2015, Hannu Vuolasaho (vuokko AT msn DOT com) [via geda-user AT delorie DOT com] wrote:
> configure fails;
>
> checking for a Python interpreter with version>= 2.7... python
> checking for python... /usr/bin/python
> checking for python version... 3.4
> checking for python platform... linux
> checking for python script directory... ${prefix}/lib/python3.4/site-packages
> checking for python extension module directory... ${exec_prefix}/lib/python3.4/site-packages
> checking python3.4/Python.h usability... no
> checking python3.4/Python.h presence... no
> checking for python3.4/Python.h... no
> configure: error: python headers not found
> configure: error: ./configure failed for xorn

This appears to be a combination of two bugs in AM_PATH_PYTHON:

1.) It interprets its argument as a minimum version; there is no way to 
specify a maximum version.  Consequentially, it selects Python 3.4 when it 
should select Python 2.7.

2.) It detects Python 3.4 as installed while it's actually just the 
minimal subset which is installed (python3.4m vs. python3.4).

Given that the macro itself isn't too complex, I guess the easiest way to 
fix this would be to include a custom version of the macro in the 
repository.  I'll look into this tomorrow.