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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 arch os) = intercalate "-"
[ stringEncodeArch arch
, stringEncodeOS os
, 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.
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