[SciPy-Dev] Mountain Lion Scipy-dev build fails (Ralf Gommers)

Ralf Gommers ralf.gommers@gmail....
Fri Aug 10 01:56:29 CDT 2012


On Fri, Aug 10, 2012 at 4:08 AM, Aaron Andalman <nerduno.list@gmail.com>wrote:

> Ralf,
>
> Thanks for the information. You were correct; the -msse4 flag does appear
> to be coming from the brew installation of python.  Grep reveals the flag
> in a Makefile, and editing the makefile altered the results of scipy python
> setup.py configure.   Thus scipy now compiles!  Thank you.
>
> However, I'm hoping to understand how and why scipy gets the -msse4 flag
> from the Makefile?  Should this be modified?  Or should the brew python
> formula be modified somehow?
>

The flags with which Python itself is compiled are passed from Python
distutils to numpy.distutils. In principle that's what we want. Only scipy
doesn't compile with it; numpy does apparently. So we could try to filter
out that flag in numpy.distutils, but the easier solution is to remove it
from the homebrew Makefile.

Ralf
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