In article <199611070727.RAA01792@hotdog.ping.net.au> wulf@ping.net.au (Berndt Josef Wulf) writes:
>int comparison( TTY_NODE **arg1, TTY_NODE **arg2 )

change it to:
int comparison(const void *v1, const void *v2)
{
	TTY_NODE **arg1 = v1, **arg2 = v2;


christos