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.
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 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').
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')
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
Any idea where this could stem from?
- Frank
On 18/08/2011 12:12 PM, Thomas Paviot wrote:
2011/8/18 Frank Conradie <fr...@qfin.net <mailto:fr...@qfin.net>>
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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