[Cython] Cython sometimes fails to build on Travis

[Yury V. Zaytsev]

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.

-- 
Sincerely yours,
Yury V. Zaytsev