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Date: Sun, 23 Sep 2012 10:11:09 +0100
Message-ID: <CANg26EW51jCthP7td1fqh+atWN486SM90DeE3hWKEsvd7t2...@mail.gmail.com>
Subject: Re: [cython-users] Cython on Mac?
From: mark florisson <markflorisso...@gmail.com>
To: cython-users@googlegroups.com
Content-Type: text/plain; charset=UTF-8

On 21 September 2012 10:37, Mark Summerfield <l...@qtrac.plus.com> wrote:
> Hi,
>
> (1)
>
> I'm trying to build some Cython modules on Mac OS X 10.5. These build
> perfectly on Linux and they seem to build on Mac. However when I do
>
> import MyMod
>
> I get
>
> MyMod.cpython-32m.so: unknown file type, first eight bytes: 0x7F 0x45 0x4C 0x46 0x02 0x01 0x01 0x00
>
> Can anyone tell me what I'm doing wrong?

Did you clean your build directory first? Make sure you don't have
object files from Linux lying around. Here is the clue:

>>> [chr(x) for x in (0x7f, 0x45, 0x4c, 0x46)]
['\x7f', 'E', 'L', 'F']

> (2)
>
> I'm also trying to access a third-party .dylib on Mac; again it works
> fine on Linux but on Mac it won't build because it says it can't find
> the library. In setup.py I have
>
>     setup(
>         libraries=[("thing", {})],
>         ext_modules=cythonize(...
>
> I tried adding library_dirs=["/path/to/"] to ext_modules but that didn't
> help.
>
> Nor can I find any documentation for setup()'s "libraries" option.
>
> Can anyone point me to an example where Cython is used to access a Mac
> .dylib?
>
> Thanks!
>
> --
> Mark Summerfield, Qtrac Ltd, www.qtrac.eu
>     C++, Python, Qt, PyQt - training and consultancy
>         "Advanced Qt Programming" - ISBN 0321635906
>             http://www.qtrac.eu/aqpbook.html