[SciPy-Dev] Purpose of commit 359cf0 ?

Pauli Virtanen pav@iki...
Fri Aug 30 11:08:15 CDT 2013


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Hi,

30.08.2013 13:43, David Cournapeau kirjoitti:
> I see that this fix broke visual studio build in a non trivial
> manner (a few cephes functions are declared in VS math.h, with
> incompatible linkage).
> 
> I don't understand the fix: which platform did it fix, and why not
> having isfinite matter since we're using npy_ macro in struve.c ?

The platform it fixed was Centos 5 + epd-7.0-2-rh5-x86_64 (with Numpy
1.5.1 and Python 2.7.1).

There is a weird interaction between the header files, which causes
import to fail with

	./_ufuncs.so: undefined symbol: isfinite

if <math.h> is included before <Python.h> (which is included from
amos_wrappers.h). So perhaps the Python setup is just broken there.

Other ideas how to fix it? (NB: You can ask Ognen for account on
docs.scipy.org if you want to debug it yourself.)

    ***

This seems to show that no matter how trivial the change is, do it via
PR rather than just pushing it...

	Pauli

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