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diff --git a/Utility/RawFilePath.hs b/Utility/RawFilePath.hs
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+++ b/Utility/RawFilePath.hs
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+{- Portability shim around System.Posix.Files.ByteString
+ -
+ - On unix, this makes syscalls using RawFilesPaths as efficiently as
+ - possible.
+ -
+ - On Windows, filenames are in unicode, so RawFilePaths have to be
+ - decoded. So this library will work, but less efficiently than using
+ - FilePath would.
+ -
+ - Copyright 2019 Joey Hess <id@joeyh.name>
+ -
+ - License: BSD-2-clause
+ -}
+
+{-# LANGUAGE CPP #-}
+
+module Utility.RawFilePath (
+	RawFilePath,
+	readSymbolicLink,
+	getFileStatus,
+	getSymbolicLinkStatus,
+	doesPathExist,
+) where
+
+#ifndef mingw32_HOST_OS
+import Utility.FileSystemEncoding (RawFilePath)
+import System.Posix.Files.ByteString
+
+doesPathExist :: RawFilePath -> IO Bool
+doesPathExist = fileExist
+
+#else
+import qualified Data.ByteString as B
+import System.PosixCompat (FileStatus)
+import qualified System.PosixCompat as P
+import qualified System.Directory as D
+import Utility.FileSystemEncoding
+
+readSymbolicLink :: RawFilePath -> IO RawFilePath
+readSymbolicLink f = toRawFilePath <$> P.readSymbolicLink (fromRawFilePath f)
+
+getFileStatus :: RawFilePath -> IO FileStatus
+getFileStatus = P.getFileStatus . fromRawFilePath
+
+getSymbolicLinkStatus :: RawFilePath -> IO FileStatus
+getSymbolicLinkStatus = P.getSymbolicLinkStatus . fromRawFilePath
+
+doesPathExist :: RawFilePath -> IO Bool
+doesPathExist = D.doesPathExist . fromRawFilePath
+#endif