Is there a way to print what -Wall represents?

[Xi Ruoyao]

On 2021-03-28 12:38 -0500, Peng Yu via Gcc-help wrote:
> Hi,
> 
> man gcc list the options that -Wall represents. But it may not be
> updated. Is there a way to print what -Wall represents in the command
> line? Thanks.

LANG= gcc -Wall -Q --help=warnings | grep enabled

It will also print those warnings enabled by default.  You can then run the
command without -Wall and make a diff.
-- 
Xi Ruoyao <xry111@mengyan1223.wang>
School of Aerospace Science and Technology, Xidian University