MHU_OptionsGHC.hs:1:17: error:
    Unknown flag in  {-# OPTIONS_GHC #-} pragma: -working-dir=a

MHU_OptionsGHC.hs:2:17: error:
    Unknown flag in  {-# OPTIONS_GHC #-} pragma: -hidden-module=A

MHU_OptionsGHC.hs:3:17: error:
    Unknown flag in  {-# OPTIONS_GHC #-} pragma: -reexported-module=A

MHU_OptionsGHC.hs:4:17: error:
    Unknown flag in  {-# OPTIONS_GHC #-} pragma: -this-package-name=pp