Re: gcc --help for options which are not warnings or optimizations

[Nick Clifton <nickc at redhat dot com>]

Hi Ian,

> Nick, how is gcc --help supposed to work for options which are neither
> warnings nor optimizations?  For example, -fstack-protector.  Is there a
> --help option which will display it?

Yes - but only the generic "--help --verbose" rather than a more 
qualified version.

My original goal with the qualifiers for --help was to enable to 
automatic collection of all optimization options available in a 
particular version of gcc.  These would then be plugged in to a script 
to try out various different combinations of those options in the hopes 
of find the optimum selection.

I suppose we could add another qualifier along the lines of 
"--help=not-otherwise-shown" but that seems rather klunky.

Cheers
  Nick