SEGV on bad recursion

[Igor Schein <igor@txc.com>]

Hi, here's what happening:

\\ f() is an recursively defined identity map on Z+ \ {1}
f(n)=if(n==2,2,f(n-1)+1)
f(1)

That's where gp segfaults and dies.
My guess is that gp doesn't handle infinite recursion
well.  Rather, it handles it awefully, because it can't
even trap a SEGV.

Thanks
Igor