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Reply-To: Brian DOT Inglis AT SystematicSw DOT ab DOT ca
Subject: Re: Problem with Python programs with binary components, who to blame?
References: <156f59f4272 DOT c6a11ec33673 DOT 3924353846235894325 AT zoho DOT com>
To: cygwin AT cygwin DOT com
From: Brian Inglis <Brian DOT Inglis AT SystematicSw DOT ab DOT ca>
Message-ID: <208ad79b-35dd-0d71-4949-3fc51c4bf044@SystematicSw.ab.ca>
Date: Sun, 4 Sep 2016 14:34:39 -0600
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On 2016-09-04 08:34, Patrick Pief wrote:
> Before writing any formal bug report I thought I might ask first whether the
> problem I am seeing is something that can be even fixed from Cygwin's side.
> The issue has to do with the compilation of Python binary packages for Python
> inside Cygwin (Python installed as a Cygwin package as opposed to Python for
> Windows).
> The problem starts to show as gcc warnings: "[…] redeclared without dllimport
> attribute: previous dllimport ignored", and ends with linkers errors such as:
> "relocation truncated to fit [...] against undefined symbol".
> I am guessing the problem might actually lie within the Python sources itself
> but I am not entirely sure.
> So is this some issue that is even worth further research and filing a bug
> report here?

Hi Patrick,
Read about cygwin dll exports and imports at

https://cygwin.com/cygwin-ug-net/dll.html

You may want to find a similar Cygwin Python module and look at the source
package (something called python-...-v.n-p-src) to see how it is built using
cygport, which takes care of some Cygwin specific differences in builds.

If you still have issues, please provide all the information requested by:

https://cygwin.com/problems.html

which includes attaching cygcheck and build output logs.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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