Re: options generation and language count

["Joseph S. Myers" <joseph@codesourcery.com>]

On Tue, 30 Aug 2011, Gary Funck wrote:

> On 08/30/11 15:52:12, Joseph S. Myers wrote:
> > Please send a patch. [... on points 1, 2, and 3]0
> 
> OK, will do.
> 
> > GF: Also, the use of fixed masks is problematic.  Perhaps the AWK script
> > GF: could be changed to also generate values for CL_PARAMS, etc., ensuring
> > GF: that will not conflict with the language mask values?
> > 
> > That sounds riskier (and does everywhere using opts.h actually need the 
> > generated options.h as well?)
> 
> It looks like many files include opts.h, but do not include options.h.

options.h is also included via flags.h or tm.h.  (The dependencies between 
these headers are rather a mess.)

> > although in principle it ought to be 
> > possible to assign this automatically (and actually only CL_DRIVER, 
> > CL_TARGET and CL_COMMON should really need bits assigned, though avoiding 
> > the others would require a --help rework).
> 
> An alternative might be to move the fixed assignments (CL_DRIVER, 
> CL_TARGET, CL_COMMON ...) down to start at the beginning of the range,
> (leaving room for a few more) and to start the auto-generated
> language mask bits above that?

You could do that - again, you'd need to watch for existing dependencies 
on the ordering.

-- 
Joseph S. Myers
joseph@codesourcery.com