Re: [ghc-steering-committee] Proposal #631: Set program exit code by main return type, recommendation: accept something

On Mon, 29 Apr 2024 at 17:58, Simon Peyton Jones < simon.peytonjones@gmail.com> wrote:

Actually I didn't say anything about warnings when suggesting (4). If we adopted (4) *we'd surely want a warning like (2) when main returns a type other than (), Void, or ExitCode*. So I'm going to vote on that basis

Argl! My misunderstanding, sorry. Would anyone change their vote if we change 4 to: -XNoWombat: 00WWWN / -XWombat 00IWWN]? I believe Malte will. Anyone else? (For 3a, I did specify that -XWombat gives errors on types which aren't instances of ExitStatus)