Of course, alpha didn't build anyway due to the lack of memory allocation (I think) code for generic 64-bit platforms that I think was mentioned on one of the lists recently.

You might try using the hack I added to MBlock.h for x86_64. It's admittedly completely bogus, but it hasn't failed for me yet. On a pleasant note, the GCC folks have promised to fix the register variable problems with GCC 3.x for the 3.4 release, so we should be able to use GCC 3.4 on non-x86 platforms. Cheers, Simon