x86_64 / gcc4 problems

[hyperdivision]

hi.
i'm still having no luck building guile-cvs under 64-bit mode
on my amd64.
it builds fine using "gcc -m32", but 64 doesn't build.
and since it is runtime problems, not compiling,
i'm not quite sure what to do to track it down.
if someone could give me a hand i would appreciate it.

guile-1.6.7 runs fine, it's just the cvs that has problems.

if i use -O or -ON it dies during the make of guile.texi,
otherwise, without or with -g i get a stack overflow in ice-9
during the command:
../pre-inst-guile -s ./compile-psyntax.scm \
  ./psyntax.ss ./psyntax.pp

i don't know how to get more information for you from the build,
but if you send me anything to try, i will get back to you
with whatever i can gather.

thanks.