On Wed, Jan 27, 2016 at 3:51 PM, G Young <gfyoun...@gmail.com> wrote:

> I don't need it at this point.  I'm just going through the exercise for
> purposes of updating building from source on Windows.  But that's good to
> know though.  Thanks!
>

That effort is much appreciated by the way. Updating the build info on all
platforms on http://scipy.org/scipylib/building/index.html is a significant
amount of work, and it has never been in a state one could call complete.
So more contributions definitely welcome!

Ralf



>
> Greg
>
> On Wed, Jan 27, 2016 at 2:48 PM, Ralf Gommers <ralf.gomm...@gmail.com>
> wrote:
>
>>
>>
>> On Wed, Jan 27, 2016 at 3:19 PM, G Young <gfyoun...@gmail.com> wrote:
>>
>>> NumPy will "build" successfully, but then when I type "import numpy", it
>>> cannot import the multiarray PYD file.
>>>
>>> I am using dependency walker, and that's how I know it's the
>>> libopenblas.dll file that it's not linking to properly, hence my original
>>> question.
>>>
>>
>> The support for MingwPy in numpy.distutils had to be temporarily reverted
>> (see https://github.com/numpy/numpy/pull/6536), because the patch caused
>> other issues. So likely it just won't work out of the box now. If you need
>> it, maybe you can reapply that reverted patch. But otherwise I'd wait a
>> little bit; we'll sort out the MingwPy build in the near future.
>>
>> Ralf
>>
>>
>>
>>> Greg
>>>
>>> On Wed, Jan 27, 2016 at 1:58 PM, Michael Sarahan <msara...@gmail.com>
>>> wrote:
>>>
>>>> When you say find/use, can you please clarify whether you have
>>>> completed the compilation/linking successfully?  I'm not clear on exactly
>>>> when you're having problems.  What is the error output?
>>>>
>>>> One very helpful tool in diagnosing dll problems is dependency walker:
>>>> http://www.dependencywalker.com/
>>>>
>>>> It may be that your openblas has a dependency that it can't load for
>>>> some reason.  Dependency walker works on .pyd files as well as .dll files.
>>>>
>>>> Hth,
>>>> Michael
>>>>
>>>> On Wed, Jan 27, 2016, 07:40 G Young <gfyoun...@gmail.com> wrote:
>>>>
>>>>> I do have my site.cfg file pointing to my library which contains a
>>>>> .lib file along with the appropriate include_dirs parameter.  However,
>>>>> NumPy can't seem to find / use the DLL file no matter where I put it
>>>>> (numpy/core, same directory as openblas.lib).  By the way, I should 
>>>>> mention
>>>>> that I am using a slightly dated version of OpenBLAS (0.2.9), but that
>>>>> shouldn't have any effect I would imagine.
>>>>>
>>>>> Greg
>>>>>
>>>>> On Wed, Jan 27, 2016 at 1:14 PM, Michael Sarahan <msara...@gmail.com>
>>>>> wrote:
>>>>>
>>>>>> I'm not sure about the mingw tool chain, but usually on windows at
>>>>>> link time you need a .lib file, called the import library.  The .dll is
>>>>>> used at runtime, not at link time.  This is different from *nix, where 
>>>>>> the
>>>>>> .so serves both purposes.  The link you posted mentions import files, so 
>>>>>> I
>>>>>> hope this is helpful information.
>>>>>>
>>>>>> Best,
>>>>>> Michael
>>>>>>
>>>>>> On Wed, Jan 27, 2016, 03:39 G Young <gfyoun...@gmail.com> wrote:
>>>>>>
>>>>>>> Hello all,
>>>>>>>
>>>>>>> I'm trying to update the documentation for building Numpy from
>>>>>>> source, and I've hit a brick wall in trying to build the library using
>>>>>>> OpenBLAS because I can't seem to link the libopenblas.dll file.  I tried
>>>>>>> following the suggestion of placing the DLL in numpy/core as suggested
>>>>>>> here
>>>>>>> <https://github.com/numpy/numpy/wiki/Mingw-static-toolchain#notes> but
>>>>>>> it still doesn't pick it up.  What am I doing wrong?
>>>>>>>
>>>>>>> Thanks,
>>>>>>>
>>>>>>> Greg
>>>>>>> _______________________________________________
>>>>>>> NumPy-Discussion mailing list
>>>>>>> NumPy-Discussion@scipy.org
>>>>>>> https://mail.scipy.org/mailman/listinfo/numpy-discussion
>>>>>>>
>>>>>>
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