I think it should be changed to check to see if the Python interpreter is currently running in 32 bit mode, and then compile to match:
if 'darwin' in sys.platform and sys.maxint == 2147483647:
# The Python interpreter is running in 32 bit mode on OS X
if "-arch" not in conf["CXXFLAGS"]:
conf["CXXFLAGS"].extend(['-arch', 'i386', '-m32'])
if "-arch" not in conf["LDFLAGS"]:
conf["LDFLAGS"].extend(['-arch', 'i386', '-m32'])
Some people (myself included) have to run Python in 32-bit mode on 64-bit OS X
for various compatibility reasons (currently including libcudart.dylib, which
is only shipped as a 32-bit library). Since the Python which Apple ships is
compiled as a fat binary with both 32 and 64 bit versions, we can't know a
priori what the right compiler flags are.
- bryan
On Sep 19, 2010, at 5:55 PM, Andreas Kloeckner wrote:
> On Thu, 16 Sep 2010 14:37:31 -0400, gerald wrong <psillymathh...@gmail.com>
> wrote:
>> Looking at PyCUDA setup.py, I found this:
>>
>> if 'darwin' in sys.platform:
>> # prevent from building ppc since cuda on OS X is not compiled for
>> ppc
>> # also, default to 32-bit build, since there doesn't appear to be a
>> # 64-bit CUDA on Mac yet.
>> if "-arch" not in conf["CXXFLAGS"]:
>> conf["CXXFLAGS"].extend(['-arch', 'i386', '-m32'])
>> if "-arch" not in conf["LDFLAGS"]:
>> conf["LDFLAGS"].extend(['-arch', 'i386', '-m32'])
>>
>> Since 64bit CUDA support on Mac OS X is a reality since at least CUDA3.1,
>> this should be changed. I know there are other problems regarding 32/64
>> python stopping 64bit mac users at the moment (including myself), but since
>> changes are being made to the PyCUDA code to make it compatible with CUDA3.2
>> anyway...
>
> It looks like this should just be killed wholesale--right? Or is there
> anything more appropriate that it should be changed to?
>
> Andreas
>
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- bryan
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