[Cython] Cython sometimes fails to build on Travis

[Matthew Brett]

Hi,

On Sat, Nov 8, 2014 at 11:59 AM, Stefan Behnel <stefan_ml at behnel.de> wrote:
> Yury V. Zaytsev schrieb am 08.11.2014 um 18:55:
>> On Sat, 2014-11-08 at 00:53 +0100, Stefan Behnel wrote:
>>>
>>> Also, compiling the resulting C code with CFLAGS="-O0" (or "-O0 -ggdb"
>>> etc.) usually gives another speed boost for testing purposes.
>>
>> Just to mention it, the compilation is certainly going to be much
>> faster, but the resulting code might end up being a lot slower, so if
>> you then run a battery of tests that uses the module, you might end up
>> loosing way more than you gained by cutting down the compilation time.
>
> My assumption was that the test suite doesn't include performance tests and
> that it is small and concise enough to exercise most code paths only a
> couple of times, with only some core code paths being heavily used. That
> tends to be reasonable (I've yet to see a code base with a branch coverage
> of 100%), but will obviously not apply to all packages. If you have test
> for large data sets, for example, the performance may suffer noticeably, as
> you say.
>
> It's usually worth comparing, though.

I have the same build error on a real machine:

http://nipy.bic.berkeley.edu/builders/dipy-py3.4/builds/49/steps/shell_5/logs/stdio

Is there anything you can suggest to help debug?

Cheers,

Matthew