[pypy-dev] Fwd: [#3588935] Re: PyPy 3 for Windows 64-bit systems

Martin.Gfeller at swisscom.com Martin.Gfeller at swisscom.com
Thu Oct 25 07:43:05 EDT 2018

Dear Brian

The Wikipedia article seems to imply that using Cygwin as a compiler on Windows 64 would resolve the problem? 

Dear Armin, it can't be possibly that easy?

Best regards

> Date: Tue, 23 Oct 2018 10:44:40 -0400
> From: Janzert <janzert at janzert.com>
> To: pypy-dev at python.org
> Subject: Re: [pypy-dev] PyPy 3 for Windows 64-bit systems - no
	download link available
> Message-ID: <pqnc0i$151$1 at blaine.gmane.org>

> From what I understand the underlying cause is because 64bit windows (or more specifically the visual studio C compiler) uses an LLP64
> (IL32P64) data model* while most 64bit unix based systems use LP64 (I32LP64).

>  The previously linked article on getting a 64bit windows pypy talks about the size difference for long but doesn't spell out the data model explicitly.

> Hopefully that helps clear up where the underlying issue comes from.

> Brian Haskin

> * https://en.wikipedia.org/wiki/64-bit_computing#64-bit_data_models

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