commandline help

[Marc Lehmann]

On Fri, Feb 13, 1998 at 01:12:12AM -0700, Jeffrey A Law wrote:
> 
>   In message < 19980213035220.52024@cerebro.laendle >you write:
>   > 
>   > bad: gcc -? doesn't give reasonable output.
> I don't think we want a -? option.  I would recommend we stick with --help
> as that's the GNU standard option for command line help.

look more closely... -? isn't a supported switch even WITH the patch...

I should have used

gcc -mno-avail

or

gcc

to illustrate the example... with the patch, -? is diagnosed
(as usual) as an unknown switch, and a small help message is printed.

>   > it can be enabled with configure --enable-clh.. the patch needs some
>   > tuning, but it was tested in pgcc for some time..
> I woudn't bother making it a configure option -- always include it.

it makes gcc some 70kb larger (if not more).

> Do we want to dump all the options available? (and there's a lot of them!).
> If so, I would recommend we actally parse f_options and the machine dependent
> options intead of creating yet another place where we have to maintain
> them.

actually, the texi files for gcc, g++ and g77 are parsed with a shell
script, so there is no maintainance problem...

ok, i'll submit it when ready.

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