bug#407: gpm server stop making emacs abort()

[Kevin Ryde]

If running with

        (gpm-mouse-mode 1)

and if you stop the gpm server, then emacs dies with

        Fatal error (6)Aborted

Output from "bt full" below; xbacktrace printed nothing at all.


The backtrace shows it at the abort() under the EBADF case in
wait_reading_process_output().  I think when Gpm_GetEvent gets an eof
from the server it closes gpm_fd; maybe that's the bad fd in question.


In GNU Emacs 23.0.60.1 (i586-pc-linux-gnu, GTK+ Version 2.12.10)
 of 2008-06-13 on blah.blah
configured using `configure  'CFLAGS=-O -g' '--prefix=/down/emacs/b/inst' 
'--with-x-toolkit=gtk''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_AU
  value of $XMODIFIERS: nil
  locale-coding-system: iso-latin-1-unix
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  gpm-mouse-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

bt.txt
Description: Text document