What’s going on here?   No other library module defines this function, except in Cabal!

Simon

libraries\base\GHC\Windows.hs:124:16:

    Not in scope: ‘dropWhileEndLE’

    Perhaps you meant ‘dropWhileEnd’ (imported from Data.OldList)

libraries/base/ghc.mk:4: recipe for target 'libraries/base/dist-install/build/GHC/Windows.o' failed