segfault on incorrect code

[Alexandre Duret-Lutz]

Seeing a thread named "core dump" remembered me an old bug I
stumbled upon years ago (in guile 1.3), but never reported. 
It seems to be still present in recent versions.

% guile
guile> (version)
"1.6.4"
guile> (define (foo a b c) (< b c))
guile> (sort '(3 2 1) foo)
zsh: segmentation fault  guile

The code is obviously wrong, but maybe sort could check the
arity of its last argument.
-- 
Alexandre Duret-Lutz