[MIT-Scheme-devel] Building with 32 bit pointers?

[Tim Josling]

Hi

1. I have Gnu/linux (Red hat 8) and have been using mit-gnu-scheme for a 
while. I am running into this 16mb heap issue, running out of memory on 
big genetic algorithm runs...

I have the impression this is due to the use of 8 bits from the pointer 
as a type. Can I rebuild with 32 bit pointers so I get a large heap? 
Maybe there is a configuration option or do I need to patch something?

I am on 7.5.17 of scheme but I have downloaded the patest stable release 
7.7.1 and can install that if it helps.

I read all the doc and browsed the source for 1/2 hour or so without 
running into anything obvious. Any help appreciated,

2. In windows one can call arbitrary functions, but not in Unix/Linux. 
Is there any particular problem with adding this capability to Unix? Has 
any design or discussion occured about this? Would a patch to add it be 
in principle acceptable? Do you need a copyright assignment to the FSF?

Tim Josling