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: github.com/cournape/).
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: \Users\francesc\Desktop\NumPy\1.4.x\numpy\distutils\command\config.py" , line 56, in _check_compiler self.compiler.initialize() File "C:\Python26_64\lib\distutils\msvc9compiler.py", line 359, in initialize vc_env = query_vcvarsall(VERSION, plat_spec) File "C:\Python26_64\lib\distutils\msvc9compiler.py", line 275, in query_vcvar sall 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.