GNU Prolog 1.3.1 on Mac OS X 10.6.4

[Richard O'Keefe]

m% uname -a
Darwin oucs1251.otago.ac.nz 10.4.0 Darwin Kernel Version 10.4.0: Fri Apr 23 
18:28:53 PDT 2010; root:xnu-1504.7.4~1/RELEASE_I386 i386

gprolog-1.3.1-leopard-intel.pkg
downloaded today.
m% gplc sorts.pl
/var/folders/JI/JIeq+3-NEh4M9AOiE9pDME++DFM/-Tmp-/gplcA3jWne.s:4:32-bit 
absolute addressing is not supported for x86-64
/var/folders/JI/JIeq+3-NEh4M9AOiE9pDME++DFM/-Tmp-/gplcA3jWne.s:4:cannot do 
signed 4 byte relocation
/var/folders/JI/JIeq+3-NEh4M9AOiE9pDME++DFM/-Tmp-/gplcA3jWne.s:14:suffix or 
operands invalid for `jmp'
/var/folders/JI/JIeq+3-NEh4M9AOiE9pDME++DFM/-Tmp-/gplcA3jWne.s:22:suffix or 
operands invalid for `jmp'
/var/folders/JI/JIeq+3-NEh4M9AOiE9pDME++DFM/-Tmp-/gplcA3jWne.s:34:32-bit 
absolute addressing is not supported for x86-64
...

Of course GNU Prolog did not break; Mac OS X moved away from under it.
I can still compile and run 32-bit C programs in this environment.
And of course the download wasn't labelled >>Snow<< Leopard.
But it was worth a try.