[Pythonmac-SIG] building python from source as 64-bit universal on g5 powermac with gcc-4.2

[Christian Calderon]

I have asked about this before, but back then I knew nothing about  
building anything from source. This time I have a little more  
experience, so maybe I can better describe what's going on?
If I run ./configure with no options, it configures fine, and I can  
make and make install with only sqlite messing up (which I don't even  
care about). This is good, but the only reason I want to build from  
source is to have a 64-bit version of python that can use more of my  
ram for an image manipulation project I am working on. but when I try
./configure --enable-universalsdk --with-universal-archs=64-bit
the configure fails when it is checking the size of different types.  
This also fails with 'all'  or 3-way as the arch type This is the  
output right before the configure fails

checking size of int... 0
checking size of long... 0
checking size of void *... 0
checking size of short... 0
checking size of float... 0
checking size of double... 0
checking size of fpos_t... 0
checking size of size_t... configure: error: in `/Users/Administrator/ 
Downloads/Python-2.7.3':
configure: error: cannot compute sizeof (size_t)
See `config.log' for more details

I know that 64-bit python on powermacs isn't supported. I just want to  
know if anyone has seen this before and/or has any tips to point me  
towards a successful build. Please don't tell me "Get an Intel mac".  
that's not helpful :p Thanks!

P.S. I tried with --enable-universalsdk=/ and It pretended to build  
and install fine, but when I tried arch -ppc64 python2.7, i got

arch: posix_spawnp: python2.7: Bad CPU type in executable

Again, does anyone know why this is? Is there a better directory for  
me to use for --enable-unversalsdk? And if I make gcc an alias for  
gcc-4.2 in my .bash_profile, does that change what make uses when it  
tries to use gcc? I have had problems with gcc before (it is version  
4.0.1 on my computer) but gcc-4.2 has fixed my problems before. Any  
tips or ideas? Don't be afraid to be technical in answers, or to point  
me to references.  Thanks again for any help!