    module GHC.UniqueSubdir
      ( uniqueSubdir
      ) where

    import Prelude -- See Note [Why do we import Prelude here?]

    import Data.List (intercalate)

    import GHC.Platform.ArchOS
    import GHC.Version (cProjectVersion)

    -- | A filepath like @x86_64-linux-7.6.3@ with the platform string to use when
    -- constructing platform-version-dependent files that need to co-exist.
    uniqueSubdir :: ArchOS -> FilePath
    uniqueSubdir :: ArchOS -> FilePath
    uniqueSubdir (ArchOS Arch
    arch OS
    os) = forall a. [a] -> [[a]] -> [a]
    intercalate FilePath
    "-"
      [ Arch -> FilePath
    stringEncodeArch Arch
    arch
      , OS -> FilePath
    stringEncodeOS OS
    os
      , FilePath
    cProjectVersion
      ]
      -- NB: This functionality is reimplemented in Cabal, so if you
      -- change it, be sure to update Cabal.
      -- TODO make Cabal use this now that it is in ghc-boot.