[Haskell-cafe] Flag to recompile modules which had warnings

[Francesco Ariis]

On Wed, Sep 02, 2015 at 09:44:21PM +0300, Kostiantyn Rybnikov wrote:
> I think some flag, which would be turned on by default, which would
> indicate to "recompile modules if they previously had warnings" would be
> awesome to have.
> 
> 1. would you like to have that flag?
> 2. would you like it "on" by default?
> 3. should ticket go into ghc or stack/cabal-install project?
> 
> Thank you.

I use often invoke ghc with `-Wall` and have experienced the same
problem. I would like to have such a flag (off by default).
I *think* the correct place where to implement this would be ghc.