diff --git a/CHANGES.txt b/CHANGES.txt
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,5 +1,7 @@
 Changelog for Weeder
 
+0.1.12, released 2018-01-16
+    Make available on Mac
 0.1.11, released 2017-12-29
     #29, deal with case-insensitive FilePath on Windows
 0.1.10, released 2017-12-28
diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright Neil Mitchell 2017.
+Copyright Neil Mitchell 2017-2018.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/src/CmdLine.hs b/src/CmdLine.hs
--- a/src/CmdLine.hs
+++ b/src/CmdLine.hs
@@ -30,7 +30,7 @@
 automatic cmd
     | cmdTest cmd = cmd{cmdTest=False,cmdProjects=["test"],cmdBuild=True,cmdMatch=True}
     | null $ cmdProjects cmd = cmd{cmdProjects=["."]}
-    | otherwise = cmd 
+    | otherwise = cmd
 
 mode :: Mode (CmdArgs Cmd)
 mode = cmdArgsMode $ Cmd
@@ -43,6 +43,6 @@
     ,cmdShowAll = nam "show-all" &= help "Show even ignored warnings"
     ,cmdDistDir = nam "dist-dir" &= typDir &= help "Stack dist-dir, defaults to 'stack path --dist-dir'"
     } &= explicit &= name "weeder" &= verbosity
-    &= summary ("Weeder v" ++ showVersion version ++ ", (C) Neil Mitchell 2017")
+    &= summary ("Weeder v" ++ showVersion version ++ ", (C) Neil Mitchell 2017-2018")
     where
         nam xs = def &= explicit &= name xs &= name [head xs]
diff --git a/src/Str.hs b/src/Str.hs
--- a/src/Str.hs
+++ b/src/Str.hs
@@ -1,18 +1,15 @@
-{-# LANGUAGE ViewPatterns #-}
 
 module Str(
     Str,
-    linesCR, stripPrefix,
+    linesCR,
     readFileUTF8,
-    S.null, S.isPrefixOf, S.drop, S.span, S.length, S.toList, S.all, S.uncons,
+    S.null, S.isPrefixOf, S.drop, S.span, S.length, S.toList, S.all, S.uncons, S.stripPrefix,
     ugly, showLength
     ) where
 
 import qualified Foundation as S
 import qualified Foundation.String as S
 import qualified Foundation.IO as S
-import qualified Foundation.Conduit as C
-import qualified Foundation.Conduit.Textual as C
 import Data.Tuple.Extra
 
 
@@ -21,20 +18,11 @@
 showLength :: S.CountOf a -> String
 showLength (S.CountOf x) = show x
 
-stripPrefix :: Str -> Str -> Maybe Str
-stripPrefix (S.toBytes S.UTF8 -> pre) (S.toBytes S.UTF8 -> x) =
-    if pre `S.isPrefixOf` x then Just $ S.fromBytesUnsafe $ S.drop (S.length pre) x else Nothing
-
-removeR :: Str -> Str
-removeR s | Just (s, c) <- S.unsnoc s, c == '\r' = s
-          | otherwise = s
-
 linesCR :: Str -> [Str]
-linesCR s = map removeR $ C.runConduitPure (C.yield s C..| C.lines C..| C.sinkList)
+linesCR = S.lines
 
 ugly :: S.Integral a => Integer -> a
 ugly = S.fromInteger
-
 
 readFileUTF8 :: FilePath -> IO Str
 readFileUTF8 = fmap (fst3 . S.fromBytes S.UTF8) . S.readFile . S.fromString
diff --git a/weeder.cabal b/weeder.cabal
--- a/weeder.cabal
+++ b/weeder.cabal
@@ -1,13 +1,13 @@
 cabal-version:      >= 1.18
 build-type:         Simple
 name:               weeder
-version:            0.1.11
+version:            0.1.12
 license:            BSD3
 license-file:       LICENSE
 category:           Development
 author:             Neil Mitchell <ndmitchell@gmail.com>
 maintainer:         Neil Mitchell <ndmitchell@gmail.com>
-copyright:          Neil Mitchell 2017
+copyright:          Neil Mitchell 2017-2018
 synopsis:           Detect dead code
 description:
     Find redundant package dependencies or redundant module exports.
@@ -16,7 +16,7 @@
 extra-doc-files:
     README.md
     CHANGES.txt
-tested-with:        GHC==8.2.1, GHC==8.0.2, GHC==7.10.3, GHC==7.8.4
+tested-with:        GHC==8.2.1, GHC==8.0.2, GHC==7.10.3
 
 source-repository head
     type:     git
@@ -42,7 +42,7 @@
         aeson,
         yaml,
         bytestring,
-        foundation >= 0.0.10,
+        foundation >= 0.0.13,
         process >= 1.2.3.0,
         extra
     other-modules: