Great. Thanks everyone. M
From: Nathaniel Smith <n...@pobox.com> Date: Wednesday, 23 January 2019 at 16:51 To: Jean-Christophe Fillion-Robin <j...@kitware.com> Cc: "Clarkson, Matt" <m.clark...@ucl.ac.uk>, "wheel-builders@python.org" <wheel-builders@python.org> Subject: Re: [Wheel-builders] Problem with finding python library via CMake On Wed, Jan 23, 2019, 07:24 Jean-Christophe Fillion-Robin via Wheel-builders <wheel-builders@python.org<mailto:wheel-builders@python.org> wrote: Hi Matt, You can assume that one windows the python dll will be available. (this is the case when using regular python distributions available python.org<http://python.org>, anaconda, etc ... ) Yeah, on Windows, linking against the python dll is absolutely mandatory for technical reasons, so you can assume it's always there. And on macOS, linking against the python dylib is essentially impossible for technical reasons, so tools should generally be set up to cope with this. The confusing case is Linux, where both options are supported and used on different systems. In practice this means portable packages have to avoid linking against the python .so, because it's not always available. But, you can't assume tools will be set up to handle this, because some tool developers only tested on systems that have a usable python .so. -n
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