On Tue, 23 May 2023 at 10:48, Gabriel Dos Reis via SG15
<sg15_at_[hidden]> wrote:
>
> [René]
> > Since msvc understands that single initial dash. It also means it
> > understands any double-dash option.
>
> No, it doesn't mean that.

Indeed.

cl : Command line warning D9002 : ignoring unknown option '-------permissive'

cl : Command line warning D9002 : ignoring unknown option '--permissive'

MSVC is not in the business of shouting too loudly about nonsense
options, but that doesn't mean it understands
them, let alone understands them to be the same as single-dash options.