[Bf-committers] numpy for 2.70

Martijn Berger martijn.berger at gmail.com
Mon Feb 24 15:48:07 CET 2014

I have tried compiling numpy but it seems you need either gcc/gfortran when
building for mingw or intel's compiler when building for msvc build python.
There is a version available online that works at:
But there is also a problem. This version is build against the Intel's MKL
(http://software.intel.com/en-us/intel-mkl) a non free but very high
performance math library.
For me the easiest solution would by bundling this version but we it seems
we can not as that would constitute a GPL violation.

It seems we have 3 options.
  - we don't bundle numpy on windows
  - we bundle this numpy and we might violate the GPL
  - we get a copy of Intel's Fortran compiler so we can build and maintain
a version of numpy for use with blender that does not violate the GPL.

I am not a layer and not a numpy specialist, any conclusions drawn above
are the result of my best understanding of our situation

On Mon, Feb 24, 2014 at 1:16 AM, Campbell Barton <ideasman42 at gmail.com>wrote:

> A while ago it was agreed that blender would bundle numpy, with very
> positive response from some script authors and general agreement,
> See meeting minutes:
> http://lists.blender.org/pipermail/bf-committers/2013-April/039809.html
> Previous discussions on the topic:
> http://lists.blender.org/pipermail/bf-committers/2012-November/038215.html
> http://lists.blender.org/pipermail/bf-committers/2012-April/036428.html
> We setup scons and cmake to bundle numpy with Python, and now the 2.70
> Linux build bundles numpy 1.80, but (unless I'm mistaken). OSX and
> ms-windows still don't include numpy.
> If there are no blocking issues - (we can't get numpy to compile for eg...)
> I think its a reasonable target to have numpy bundled on all platforms
> for 2.70, not just for Linux.
> Added tracker tickets for this so this isn't overlooked.
> https://developer.blender.org/T38791
> https://developer.blender.org/T38792
> Maintaining platform deps is often done by volunteers, so if you don't
> have time for it, say so and someone else can try to fill in the gaps.
> --
> - Campbell
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