Re: [Boost-users] gcc problems on mac os 10.6...

Subject: Re: [Boost-users] gcc problems on mac os 10.6...
From: Boris Dušek (boris.dusek_at_[hidden])
Date: 2009-11-27 11:02:05

> The thing is that the Python from Python.org is 32 bits.
>
> The python installed with mac os 10.6 is 64 bits.
>
> I checked that using :
>>>>import struct
>>>>struct.calcsize("P")*8
>

Just for the record, the python installed with Mac OS is not just
64-bit, it's (like all other Snow Leopard binaries) a 3-way universal
binary containing the executable for i386, x86_64, and ppc (32-bit)
architectures (on Leopard, it was full 4-way universal binary - i386,
x86_64, ppc, ppc64). It's just the policy of the OS to choose x86_64
variant of an executable when more than one architecture is available
in the universal binary, and the default policy can be changed for a
specific command using the "arch" command. The 32-bit variant returns
"32" (launched with the command: arch -i386 python -c 'import struct;
print struct.calcsize("P")*8'