Rename -W to -Wextra ?

[Joseph S. Myers]

On Mon, 3 Jun 2002, Phil Edwards wrote:

> (I've been finding all the things that -W controls right now, and will
> update the manual.  I'll probably need some help coming up with example
> code that triggers the warning.)

Can you split -W into separate options for the separate things it
controls, the way -Wall is just the union of such separate options?  (Of
course, each such option should have testcases.)

-- 
Joseph S. Myers
jsm28@cam.ac.uk