Libstdc++-v3 Support for netbsd

[Jeffrey A Law]

  In message < 200012062107.VAA07514@cam-mail2.cambridge.arm.com >you write:
   > That's cos I originally put the files in the wrong place, and then 
  > Benjamin moved them, but left this file out of the other fixes.
  > 
  > I've committed the change.
  > 
  > [oh, and Jeff Law managed to back out part of the previous change with his 
  > HPUX commit ;-]
Really?  Terribly sorry about that.  I didn't do anything silly to the 
best of my knowledge, but I obviously didn't review the diffs before my
commit.

jeff