[Xmonad] darcs patch: zombie_children

[David Benbennick]

Wed Oct 24 18:10:16 PDT 2007  David Benbennick <dbenbenn at gmail.com>
  * zombie_children
  
  Second version.  This patch sets SIGCHLD to SIG_IGN, so that any child
  processes that end will be immediately cleaned up.  It also waits on
  all existing zombie child processes, in case they already exist.
  
  I'm not too happy about waitAllChildren; it doesn't seem very Haskelley.
  I was surprised that the following didn't work:
  
    try $ forever_ $ getAnyProcessStatus False False >>= return . fromJust
  
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