I'm confused why Miro is still changing crt0.S ?
We're talking about two different things now:
1. normal stack, which is reported by 'stack' command -- this one needs to be changed because the standard MINKEEP (64K I believe) is too low -- and as Keith says, you can't change cc1's stack size after crash since gcc checks crc. This wasn't included in my patch but I use MINKEEP = 1 MB for avoiding such crashes and for no need to catch when gcc fails -- just 'make' and wait until everything is done. That's the reason why I like changing MINKEEP with as little influence as possible, Alan ;)
2. preliminary :) stack -- by default, this stack is as big as possible (after bss to hi tpa) but due to problems I write you in the previous mail, it doesn't work for some gcc binaries either, that means it crashes again. So I changed this value to some explicit one to be sure I know what's going on (and what is the cause, at least rough idea) -- and as you see, I discovered 1 KB is really too little for this preliminary stack. So I changed it to 64K (no relation to MINKEEP, though) and things are working again.
That's all.