I updated to the current Raw Hide earlier today.  That means glibc-2.3.1-40 and
emacs-21.2-30, among other things.

Emacs is now claiming that a process exited with status 1 when in fact it exited
with status 5.  Try this....

1) Create a file "/tmp/exit5.sh" with these contents:

  #!/bin/sh
  sleep 5
  exit 5

2) Make it executable.

3) Define and run this function:

  (defun test-exit-status ()
    (interactive)
    (let (process)
      (make-comint "foo" "/tmp/exit5.sh")
      (setq process (get-buffer-process (get-buffer "*foo*")))
      (sleep-for 6)
      (message (format "Exit status is %d" (process-exit-status process)))))

It will display the message "Exit status is 1", when it should display "Exit
status is 5".  This is a pretty serious change in functionality, and it breaks
stuff that I do in Emacs every single day.