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Re: SIGINT handling

   > I interpreted Rich's comments to mean, "use sigaction, etc where
   > possible, but re-instate the sig handler anyway, even if you
   > shouldn't have to."
   
   EXACTLY!

this is good to do, but i'd also prefer to take the reliable
signals as well.  if you're on any system v-like box and you
use `signal()' you get unreliable signals.  i'd rather use
sigset() or sigaction() here.  that way you have less
possible lossage...