[Cython] Distributing Windows binary using OpenMP / cython.parallel

Wes McKinney wesmckinn at gmail.com
Tue Dec 13 17:32:11 CET 2011

On Tue, Dec 13, 2011 at 6:47 AM, Sturla Molden <sturla at molden.no> wrote:
> Den 12.12.2011 21:09, skrev Wes McKinney:
>> I'm interested in using the Cython OpenMP extensions in pandas for
>> various calculations, but I'm concerned about cross-platform issues,
>> especially distributing built binaries of the extensions to Windows
>> users. Is there a clean way to bundle the relevant OpenMP DLLs in
>> distutils?
>> thanks,
>> Wes
> Are you using MSVC or MinGW compiler?
> If you use MinGW, beware of licensing issues for the required pthreads
> library (pthreadsGC2.dll, I think it's LGPL). It is not a part of MinGW or
> GCC/GNU. So linking it statically can be a problem.
> As for the MSVC compiler, IIRC the OpenMP runtime is a part of the MSVC
> runtime DLLs which the user must install anyway.
> Sturla
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Using MSVC compiler. For regular binaries the user doesn't need to
install anything. I guess I'll cross the bridge when I come to it.

- Wes

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