I have a project where the stack.yaml specifies ghc-options:

https://github.com/NorfairKing/smos/blob/development/stack.yaml#L31-L32

The project has both a nix build and a stack build

The nix build passes:

https://github.com/NorfairKing/smos/actions/runs/219360286

The stack build does not:

https://github.com/NorfairKing/smos/actions/runs/219360285

I expected the nix build to fail as well.