, ( "package" , HasArg exposePackage )
, ( "hide-package" , HasArg hidePackage )
, ( "hide-all-packages", NoArg (setDynFlag Opt_HideAllPackages) )
, ( "package" , HasArg exposePackage )
, ( "hide-package" , HasArg hidePackage )
, ( "hide-all-packages", NoArg (setDynFlag Opt_HideAllPackages) )