[Pythonmac-SIG] How to build Python 2.5 to support 64-bits on Mac OS X 10.4

[Harold Walter Schranz]

Hi Alex

Sorry for the delay in replying. I'll send a summary below based on  
our preliminary work achieved to date.

On 21/02/2007, at 7:22 AM, Alexandre Parenteau wrote:
> Any progress in this issue? I'm asked to investigate the same  
> thing. I would
> greatly appreciate hints on the configure options.

It is still early days (as information is relatively scarce and of  
variable reliability) and we have other multiple threads to our  
research project. This part of the project has been put on idle (not  
quite on the backburner, mixing metaphors). So progress so far is  
evident from the newsgroup threads:
http://mail.python.org/pipermail/pythonmac-sig/2007-February/ 
thread.html#18657

Particularly: http://mail.python.org/pipermail/pythonmac-sig/2007- 
February/018657.html

In summary:
> 6. However at the end of the process it appeared I had a 64-bit  
> executable of Python
>
> 1714:harry at jcs156218:~/Desktop/TODO/Python-2.5:599$ file python.exe
>
> python.exe: Mach-O 64-bit executable x86_64
>
> 1714:harry at jcs156218:~/Desktop/TODO/Python-2.5:599$ python.exe
>
> Python 2.5 (r25:51908, Feb  2 2007, 17:12:53)
> [GCC 4.0.1 (Apple Computer, Inc. build 5363)] on darwin
> Type "help", "copyright", "credits" or "license" for more information.
>  >>> 1+2
> 3
>
> So it looks like it is possible to produce a Mach-O 64-bit executable
> x86_64
> but whether it is working is another matter
>
> 7. Running the tests: make tests yields: in summary:
>
> 266 tests OK.
> 2 tests failed:
> 51 tests skipped:
> ...
> 17 skips unexpected on darwin:
> ...
> make: *** [test] Error 1
>
> I may try to repeat this process (with less flags?).
> At least this run is a lead that a 64-bit build of Python is possible.


Some detailed information and comments at:
http://lists.apple.com/archives/unix-porting/2007/Feb/index.html
http://lists.apple.com/archives/scitech/2007/Feb/msg00000.html

I expect to make more progress when I have time to devote to the  
build. Just a few little details to tie up.

Let me know if you make any further progress. We too have to deal  
with Numpy and other packages (MySQL) with 64-bit issues.

Good Luck,
Harry.

------------------------------------------------------------------------ 
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Dr. Harold W. Schranz, Research Fellow, Computational Genomics Group
Division of Molecular Bioscience, John Curtin School of Medical Research
Australian National University, Canberra ACT 0200, Australia
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