Remove default flags; they break ghci

.ghci

 :set -package ghc
 :set -package ghc-paths
 :set -i. -isrc -idist/build/autogen
-:set -XDoAndIfThenElse -XOverloadedStrings
 :set prompt "\ESC[34mλ> \ESC[m"

ihaskell-display/ihaskell-aeson/ihaskell-aeson.cabal

@@ -51,10 +51,6 @@ library
   
   -- Modules included in this library but not exported.
   -- other-modules:       
-  
-  -- Language extensions.
-  default-extensions: DoAndIfThenElse
-              OverloadedStrings
              
   -- Other library packages from which modules are imported.
   build-depends:       base >=4.6 && <4.10,

ihaskell-display/ihaskell-blaze/ihaskell-blaze.cabal

@@ -55,10 +55,6 @@ library
   
   -- Modules included in this library but not exported.
   -- other-modules:       
-  
-  -- Language extensions.
-  default-extensions: DoAndIfThenElse
-              OverloadedStrings
              
   -- Other library packages from which modules are imported.
   build-depends:       base >=4.6,

ihaskell-display/ihaskell-charts/ihaskell-charts.cabal

@@ -52,10 +52,6 @@ library
   
   -- Modules included in this library but not exported.
   -- other-modules:       
-  
-  -- Language extensions.
-  default-extensions: DoAndIfThenElse
-              OverloadedStrings
              
   -- Other library packages from which modules are imported.
   build-depends:       base >=4.6,

ihaskell-display/ihaskell-diagrams/ihaskell-diagrams.cabal

@@ -53,10 +53,6 @@ library
   -- Modules included in this library but not exported.
   other-modules:       IHaskell.Display.Diagrams.Animation
   
-  -- Language extensions.
-  default-extensions: DoAndIfThenElse
-              OverloadedStrings
-             
   -- Other library packages from which modules are imported.
   build-depends:       base >=4.6 && <4.10,
                        text,

ihaskell-display/ihaskell-gnuplot/ihaskell-gnuplot.cabal

@@ -52,10 +52,6 @@ library
   
   -- Modules included in this library but not exported.
   -- other-modules:       
-  
-  -- Language extensions.
-  default-extensions: DoAndIfThenElse
-              OverloadedStrings
              
   -- Other library packages from which modules are imported.
   build-depends:       base >=4.6 && <4.10,

ihaskell-display/ihaskell-juicypixels/ihaskell-juicypixels.cabal

@@ -58,10 +58,6 @@ library
   
   -- Modules included in this library but not exported.
   -- other-modules:       
-  
-  -- Language extensions.
-  default-extensions: DoAndIfThenElse
-              OverloadedStrings
              
   -- Other library packages from which modules are imported.
   build-depends:       base >=4.6,

ihaskell-display/ihaskell-magic/ihaskell-magic.cabal

@@ -55,10 +55,6 @@ library
   
   -- Modules included in this library but not exported.
   -- other-modules:       
-  
-  -- Language extensions.
-  default-extensions: DoAndIfThenElse
-              OverloadedStrings
              
   -- Other library packages from which modules are imported.
   build-depends:       base >=4.6 && <4.10,

ihaskell-display/ihaskell-plot/ihaskell-plot.cabal

@@ -52,10 +52,6 @@ library
   
   -- Modules included in this library but not exported.
   -- other-modules:       
-  
-  -- Language extensions.
-  default-extensions: DoAndIfThenElse
-              OverloadedStrings
              
   -- Other library packages from which modules are imported.
   build-depends:       base >=4.6,

ihaskell.cabal

@@ -121,12 +121,6 @@ library
                    IHaskellPrelude
                    StringUtils
 
-  default-extensions:
-      NoImplicitPrelude
-      DoAndIfThenElse
-      OverloadedStrings
-      ExtendedDefaultRules
-
 executable ihaskell
   -- .hs or .lhs file containing the Main module.
   main-is:             Main.hs
@@ -156,12 +150,6 @@ executable ihaskell
   if flag(binPkgDb)
     build-depends:       bin-package-db
 
-  default-extensions:
-      NoImplicitPrelude
-      DoAndIfThenElse
-      OverloadedStrings
-      ExtendedDefaultRules
-
 Test-Suite hspec
     Type: exitcode-stdio-1.0
     Ghc-Options: -threaded
@@ -191,11 +179,6 @@ Test-Suite hspec
     if flag(binPkgDb)
         build-depends: bin-package-db
 
-    default-extensions:
-        DoAndIfThenElse
-        OverloadedStrings
-        ExtendedDefaultRules
-
 source-repository head
   type:     git
   location: git://github.com/gibiansky/IHaskell.git

main/IHaskellPrelude.hs

-{-# LANGUAGE CPP #-}
+{-# language NoImplicitPrelude, DoAndIfThenElse, OverloadedStrings, ExtendedDefaultRules #-}{-# LANGUAGE CPP #-}
 module IHaskellPrelude (
   module IHaskellPrelude,
   module X,

main/Main.hs

+{-# language NoImplicitPrelude, DoAndIfThenElse, OverloadedStrings, ExtendedDefaultRules #-}
 {-# LANGUAGE CPP, ScopedTypeVariables #-}
 
 -- | Description : Argument parsing and basic messaging loop, using Haskell

src/IHaskell/Eval/Widgets.hs

+{-# language NoImplicitPrelude, DoAndIfThenElse, OverloadedStrings, ExtendedDefaultRules #-}
 module IHaskell.Eval.Widgets (
     widgetSendOpen,
     widgetSendView,

src/IHaskell/Flags.hs

+{-# language NoImplicitPrelude, DoAndIfThenElse, OverloadedStrings, ExtendedDefaultRules #-}
 {-# LANGUAGE NoImplicitPrelude, DeriveFunctor #-}
 
 module IHaskell.Flags (

src/IHaskell/IPython.hs

+{-# language NoImplicitPrelude, DoAndIfThenElse, OverloadedStrings, ExtendedDefaultRules #-}
 {-# LANGUAGE CPP #-}
 
 -- | Description : Shell scripting wrapper using @Shelly@ for the @notebook@, and

src/IHaskell/Publish.hs

+{-# language NoImplicitPrelude, DoAndIfThenElse, OverloadedStrings, ExtendedDefaultRules #-}
 module IHaskell.Publish (publishResult) where
 
 import           IHaskellPrelude

src/IHaskell/Types.hs

+{-# language NoImplicitPrelude, DoAndIfThenElse, OverloadedStrings, ExtendedDefaultRules #-}
 {-# LANGUAGE DeriveDataTypeable #-}
 {-# LANGUAGE DeriveGeneric #-}
 {-# LANGUAGE ExistentialQuantification #-}

src/IHaskellPrelude.hs

+{-# language NoImplicitPrelude, DoAndIfThenElse, OverloadedStrings, ExtendedDefaultRules #-}
 {-# LANGUAGE CPP #-}
 module IHaskellPrelude (
   module IHaskellPrelude,