[Cython] C99 comment in __Pyx_PyObject_Append

[Andrew Collette]

Hi,

> Strange--it looks like this was fixed months ago:
>
> http://hg.cython.org/cython-devel/diff/8b6d42d16c99/Cython/Compiler/
> ExprNodes.py

It looks like for some reason Cython wasn't being upgraded correctly;
after sudo python setup.py install, cython --version still reported
0.10.3.  I had to manually delete the Cython directory in
site-packages and reinstall to get it to report 0.11.2.  But it works
now!

> Maybe you need to touch the .pyx to re-generate the sources. It is
> gratifying to hear that is the only issue--should we be running our
> tests with this option? (Or is it gcc only?)

I think all major compilers have a strict-ansi mode, although I'm sure
the switch is different for VC++.  I currently only use it with gcc on
OS X for compatibility with another package that looks for
__STRICT_ANSI__.  However, if Cython is intended to generate pure C89
code it might be worth adding this as a test.  At the moment it seems
this is already the case; my large-ish (9k line) Cython project now
compiles fine with -ansi.

Thanks!
Andrew