[Numpy-discussion] Building Numpy with OpenBLAS

[G Young]

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 <msarahan at 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 <gfyoung17 at 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
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>
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