changing ghc-options in stack.yaml should trigger a rebuild

[jwaldmann]

When I add or change a ghc-options section in my stack.yaml, like this

ghc-options:
  my-project: -fno-omit-yields

where my-project is the current (local) package, I expect that the next stack install rebuilds this project, but it does not.

[harendra-kumar]

I too have encountered this many times. I have to do a stack clean when I change any compiler flags e.g. when I add or remove -fllvm.

[jwaldmann]

Ok, thanks.

[mgsloan]

This is tracked by #2063