longjmp + signal may cause problems

[mjs at rabbit.UUCP]

There is a small error in the DECTALK code as posted.  It is invalid to
test the value of errno unless { a) a system call has returned a
failure indication (-1); or b) errno was set to 0 before the system
call of interest } AND no other system calls have been invoked since
the system call of interest.
-- 
	Marty Shannon
UUCP:	{alice,rabbit,research}!mjs
Phone:	201-582-3199