[m68k] Convert CPP_SPEC to TARGET_CPU_CPP_BUILTINS

[Gunther Nikl]

On Thu, Sep 18, 2003 at 09:08:23PM +0100, Neil Booth wrote:
> Gunther Nikl wrote:-
> 
> >   Are you sure that CPP_SPEC is obsolete? Maybe you are thinking of
> >   CPP_PREDEFINES? Wasting a target bit only to define a symbol is a
> >   bad idea, IMHO.
> 
> We should be aiming to make CPP_SPEC minimal to non-existent.  Only
> things handled in the driver, like -posix, etc.

  Then it should be possible to query whether a particular argument was
  specified.

  Gunther