RFC: Replace -isysroot with --sysroot?

[Mike Stump]

On Dec 1, 2004, at 2:12 PM, Richard Sandiford wrote:
>> Is this acceptable for 4.0?
>
> ...would be "no".  The patch affects the linker too btw.

While we've not seen the patch, I'd like to ask for this to be reviewed 
and considered for 4.0.0.  We find SDK builds to be important, and we 
are changing them around now, and would like the dust to settle and use 
the one standard mechanism to do this.

If all we can do is to decide that isysroot isn't useful without the 
library changing aspect of it, and that it should be called -sysroot 
instead, then, please, let's do that now.