2011/8/18 Frank Conradie <[email protected]>
> Hi Thomas
>
> I made some progress on this in the last hour or so:
>
> 1. sys.platform is still "win32", even for 64 bit Python.
>
Funny!
>
> 2. The sys.maxint check does not work on Windows - it returns the 32 bit
> max, even though I am definitely using Python 2.6 64bit.
>
I didn't know about that. I thought the maxint was 2^63-1 when python is
compiled in 64bit mode.
> I have found other references to this on some messageboards. The suggested
> way to work around this is to check the 1st value returned by
> "platform.architecture()", which returns ('64bit', 'WindowsPE').
>
Very interesting, I will move to this function. I tested that it returns
'32bit' for OSX/python2.5 and '64bit' for OSX/python2.6. Thanks.
> 3. To link with the 64bit versions of the OCC libs, I made this change:
> if sys.platform=='win32':
> OCC_LIB = os.path.join(OCC_ROOT,'win%d'%bits,'lib')
>
Ok. This has to be properly handled.
>
> 4. I added the 64 bit flags, as you also suggested in your email:
> if bits==64:
> DEFINE_MACROS.append(('_OCC64',None))
> SWIG_OPTS.append('-D_OCC64')
>
> However, I currently get this error:
>
> C:\Python\pythonocc-0.5\src\wrapper\Visualization\Visualization.i(25) :
> Error: Unable to find '..\1\ExceptionCatcher.i'
> error: command 'swig.exe' failed with exit status 1
>
Strange, line 25 of Visualization.i should be:
%include ../SWIG/ExceptionCatcher.i
> Any idea where this could stem from?
>
Absolutely not. What about the other modules?
>
> - Frank
>
Thomas
>
> On 18/08/2011 12:12 PM, Thomas Paviot wrote:
>
> 2011/8/18 Frank Conradie <[email protected]>
>
>> I am wondering if anyone has tried to build pythonocc for 64bit Python on
>> Win64? Looking at environment.py. there is no special case code for 64 bit
>> builds on Windows yet, although there is for Linux and MacOS.
>>
>> - Frank
>>
>>
> Hi Frank,
>
> There's not any Win64 specific code because I did not have the opportunity
> to have a Win64 machine to test pythonocc with this platform. However I do
> think that the 64bit code for linux/darwin could be used as is for Win64.
>
> The script environment.py first detects whether or not python is 64 bit (by
> querying sys.maxint). After that, according to the result (32 or 64bit),
> environment.py decides to set -D_OCC64 as a compiler define. That's all. If
> you just append ('_OCC64',None) to the DEFINE_MACROS list, you should have
> pythonocc compiled properly under Win64.
>
> Just a question: under Win32, sys.platform returns the 'win32' string. Is
> 'win64' returned under win64?
>
> I will create a branch named tp/win64-support (don't know if you're
> familiar with git). I will notify you when it's done so that you can test
> building pythonocc from github (https://github.com/tpaviot/pythonocc). I
> don't know if there are speficic things to be aware of when dealing with
> python and windows in 64 bit mode, feel free to send any suggestion.
>
> Best Regards,
>
> Thomas
>
>
>
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