Make-3.81beta2 hangs in infinite loop

[Darren Hiebert (Contractor)]

I am using make-3.81beta2 and have run into a situation in which
make gets stuck in an infinite loop in the function update_goal_chain()
in remake.c. I attached a debugger to the make process and stepped
through this function. I found that 'lastgoal' was non-null and that
update_file() always returned zero. As I look at update_goal_chain(),
it appears that once these two conditions are true, 'goals' can never
be changed and the outer-most loop can, therefore, never exit.

Testing reveals that the problem only occurs when we build our target
with -j.

Can you advise me on what to do to help track down this problem?

Thank you,
Darren