patch applied (ghc): First step for getting rid of the old -optdep flags

[Ian Lynagh]

Sun Jul 20 13:32:39 PDT 2008  Ian Lynagh <igloo at earth.li>
  * First step for getting rid of the old -optdep flags
  They are now handled by the main flag parser, rather than having their
  own praser that runs later.
  
  As an added bonus, 5 global variables are also gone.

    M ./compiler/main/DriverMkDepend.hs -45 +11
    M ./compiler/main/DynFlags.hs -6 +62

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20080720203239-3fd76-5f6a876945f03653ff702ddfd6bcb08176d97d2b.gz