[Numpy-discussion] draft release guide
Wed Mar 24 20:00:36 CDT 2010
Francesc Alted wrote:
> A Wednesday 24 March 2010 15:38:58 David Cournapeau escrigué:
>> Oh, it is not that easy :)
>> First, for some reason, the mingw-w64 project does not provide 64
>> hosted compilers, and since pushing for mingw cross compilation
>> support in distutils would redefine the meaning of insanity, I build
>> my gcc. Since building gcc on windows is not a fun ride either, you
>> have to build it on unix (I have the scripts on my github account:
> Mmh, not sure about what you mean by hosted compiler
Hosted compiler refers to the platform the compiler itself runs on (so
here I mean a native 64 bits compiler, instead of a 32 bits compiler
which targets 64 bits). It is nice that mingw-w64 gives a 64 bits
hosted, that's recent.
> It comes with gcc, g++ and gfortran 4.4.4. gdb support is also there. So it
> seems like a pretty complete toolset for windows amd64.
The problem with gdb (but I would need to see if that's still true) is
that it did not give useful traceback for code compiled with MS compiler
, the stack was always corrupted somewhere for the crashes I encountered.
> With it, and with some fixes in numpy sources (very few), I achieved to pass
> the build phase. I can provide the patch in case someone is interested.
Building should work out of the box, actually - what are the issues ?
> which looks good to my eyes.
> Now, when I try to generate the installable package I'm in trouble again:
> $ python setup.py bdist
> File "C:
> , line 56, in _check_compiler
> File "C:\Python26_64\lib\distutils\msvc9compiler.py", line 359, in
> vc_env = query_vcvarsall(VERSION, plat_spec)
> File "C:\Python26_64\lib\distutils\msvc9compiler.py", line 275, in
> raise ValueError(str(list(result.keys())))
> ValueError: [u'path']
> So, it looks like either numpy or python cannot determine that the used
> compiler is mingw instead of msvc9.
Yes, you have to set it explicitly, this is no different than on 32 bits:
python setup.py build -c mingw32 bdist_wininst.
But the main problem is not to build numpy (the 1.3.0 64 bits msi was
built with mingw-w64 already) - it is to find out what causes the
various crashes people encountered. Some were due to bugs in mingw which
have been fixed since then.
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