bug#9839: compile with gdb running

[Adam]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>>> I don't understand what "allows the I/O buffer to work when the inferior
>>> is restarted" means.
>> No, me neither. :) The ChangeLog says it slightly differently:
>>    * process.c (wait_reading_process_output): Keep the descriptor
>>    when pty is used by a non-child process, e.g., in I/O buffer of
>>    GDB this allows inferior to be restarted.
>
> I saw that as well, but it doesn't help me understand.  I strongly
> suspect that the real problem was elsewhere.  Let's revert this change
> and see what breaks so we can try and fix it "right".

ping?  I am still experiencing my problem with today's trunk.