fixup #if 0 stubs to use #ifndef mingw32_HOST_OS

That's needed in files used to build the configure program.
For the other files, I'm keeping my __WINDOWS__ define, as I find that much easier to type.
I may search and replace it to use the mingw32_HOST_OS thing later.

Annex/Branch.hs

@@ -24,7 +24,7 @@ module Annex.Branch (
 ) where
 
 import qualified Data.ByteString.Lazy.Char8 as L
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Env
 #endif
 

Annex/Environment.hs

@@ -13,7 +13,7 @@ import Common.Annex
 import Utility.UserInfo
 import qualified Git.Config
 
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Env
 #endif
 import Network.BSD

Annex/Ssh.hs

@@ -14,7 +14,7 @@ module Annex.Ssh (
 ) where
 
 import qualified Data.Map as M
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Env
 #endif
 

Build/DesktopFile.hs

@@ -22,7 +22,7 @@ import Assistant.Install.Menu
 import Control.Applicative
 import System.Directory
 import System.Environment
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.User
 import System.Posix.Files
 #endif
@@ -30,7 +30,7 @@ import System.FilePath
 import Data.Maybe
 
 systemwideInstall :: IO Bool
-#if 0
+#ifndef mingw32_HOST_OS 
 systemwideInstall = isroot <||> destdirset
   where
 	isroot = do

CmdLine.hs

@@ -17,7 +17,7 @@ import qualified Control.Exception as E
 import qualified Data.Map as M
 import Control.Exception (throw)
 import System.Console.GetOpt
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Signals
 #endif
 

Command/Fsck.hs

@@ -30,7 +30,7 @@ import qualified Option
 import Types.Key
 import Utility.HumanTime
 
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Process (getProcessID)
 #endif
 import Data.Time.Clock.POSIX

Common.hs

@@ -16,7 +16,7 @@ import "MissingH" System.Path as X
 import System.FilePath as X
 import System.Directory as X
 import System.IO as X hiding (FilePath)
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Files as X
 import System.Posix.IO as X
 #endif

Creds.hs

@@ -17,7 +17,7 @@ import Types.Remote (RemoteConfig, RemoteConfigKey)
 import Remote.Helper.Encryptable (remoteCipher, embedCreds)
 
 import System.Environment
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Env (setEnv)
 #endif
 import qualified Data.ByteString.Lazy.Char8 as L

Git.hs

@@ -32,7 +32,7 @@ module Git (
 ) where
 
 import Network.URI (uriPath, uriScheme, unEscapeString)
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Files
 #endif
 

Git/Construct.hs

@@ -23,7 +23,7 @@ module Git.Construct (
 	checkForRepo,
 ) where
 
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.User
 #endif
 import qualified Data.Map as M hiding (map, split)

Git/CurrentRepo.hs

@@ -9,7 +9,7 @@
 
 module Git.CurrentRepo where
 
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Directory (changeWorkingDirectory)
 import System.Posix.Env (getEnv, unsetEnv)
 #endif

GitAnnexShell.hs

@@ -9,7 +9,7 @@
 
 module GitAnnexShell where
 
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Env
 #endif
 import System.Console.GetOpt

Remote/Rsync.hs

@@ -11,7 +11,7 @@ module Remote.Rsync (remote) where
 
 import qualified Data.ByteString.Lazy as L
 import qualified Data.Map as M
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Process (getProcessID)
 #endif
 

Test.hs

@@ -13,7 +13,7 @@ import Test.HUnit
 import Test.QuickCheck
 import Test.QuickCheck.Test
 
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Directory (changeWorkingDirectory)
 import System.Posix.Files
 import System.Posix.Env

Utility/Daemon.hs

@@ -12,7 +12,7 @@ module Utility.Daemon where
 import Common
 import Utility.LogFile
 
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix
 #endif
 

Utility/Directory.hs

@@ -10,7 +10,7 @@
 module Utility.Directory where
 
 import System.IO.Error
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Files
 #endif
 import System.Directory
@@ -61,7 +61,7 @@ dirContentsRecursive' (dir:dirs) = unsafeInterleaveIO $ do
 {- Moves one filename to another.
  - First tries a rename, but falls back to moving across devices if needed. -}
 moveFile :: FilePath -> FilePath -> IO ()
-#if 0
+#ifndef mingw32_HOST_OS
 moveFile src dest = tryIO (rename src dest) >>= onrename
   where
 	onrename (Right _) = noop

Utility/FileMode.hs

@@ -19,7 +19,7 @@ import Foreign (complement)
 {- Applies a conversion function to a file's mode. -}
 modifyFileMode :: FilePath -> (FileMode -> FileMode) -> IO ()
 modifyFileMode f convert = void $ modifyFileMode' f convert
-#if 0
+#ifndef __WINDOWS__
 modifyFileMode' :: FilePath -> (FileMode -> FileMode) -> IO FileMode
 modifyFileMode' f convert = do
 	s <- getFileStatus f
@@ -39,7 +39,7 @@ addModes ms m = combineModes (m:ms)
 
 {- Removes the specified FileModes from the input mode. -}
 removeModes :: [FileMode] -> FileMode -> FileMode
-#if 0
+#ifndef __WINDOWS__
 removeModes ms m = m `intersectFileModes` complement (combineModes ms)
 #else
 removeModes = error "removeModes TODO"
@@ -54,21 +54,21 @@ withModifiedFileMode file convert a = bracket setup cleanup go
 	go _ = a
 
 writeModes :: [FileMode]
-#if 0
+#ifndef __WINDOWS__
 writeModes = [ownerWriteMode, groupWriteMode, otherWriteMode]
 #else
 writeModes = []
 #endif
 
 readModes :: [FileMode]
-#if 0
+#ifndef __WINDOWS__
 readModes = [ownerReadMode, groupReadMode, otherReadMode]
 #else
 readModes = []
 #endif
 
 executeModes :: [FileMode]
-#if 0
+#ifndef __WINDOWS__
 executeModes = [ownerExecuteMode, groupExecuteMode, otherExecuteMode]
 #else
 executeModes = []
@@ -76,7 +76,7 @@ executeModes = []
 
 {- Removes the write bits from a file. -}
 preventWrite :: FilePath -> IO ()
-#if 0
+#ifndef __WINDOWS__
 preventWrite f = modifyFileMode f $ removeModes writeModes
 #else
 preventWrite _ = return ()
@@ -84,7 +84,7 @@ preventWrite _ = return ()
 
 {- Turns a file's owner write bit back on. -}
 allowWrite :: FilePath -> IO ()
-#if 0
+#ifndef __WINDOWS__
 allowWrite f = modifyFileMode f $ addModes [ownerWriteMode]
 #else
 allowWrite _ = return ()
@@ -92,7 +92,7 @@ allowWrite _ = return ()
 
 {- Allows owner and group to read and write to a file. -}
 groupWriteRead :: FilePath -> IO ()
-#if 0
+#ifndef __WINDOWS__
 groupWriteRead f = modifyFileMode f $ addModes
 	[ ownerWriteMode, groupWriteMode
 	, ownerReadMode, groupReadMode
@@ -101,14 +101,14 @@ groupWriteRead f = modifyFileMode f $ addModes
 groupWriteRead _ = return ()
 #endif
 
-#if 0
+#ifndef __WINDOWS__
 checkMode :: FileMode -> FileMode -> Bool
 checkMode checkfor mode = checkfor `intersectFileModes` mode == checkfor
 #endif
 
 {- Checks if a file mode indicates it's a symlink. -}
 isSymLink :: FileMode -> Bool
-#if 0
+#ifndef __WINDOWS__
 isSymLink = checkMode symbolicLinkMode
 #else
 isSymLink _ = False
@@ -116,7 +116,7 @@ isSymLink _ = False
 
 {- Checks if a file has any executable bits set. -}
 isExecutable :: FileMode -> Bool
-#if 0
+#ifndef __WINDOWS__
 isExecutable mode = combineModes executeModes `intersectFileModes` mode /= 0
 #else
 isExecutable _ = False
@@ -125,7 +125,7 @@ isExecutable _ = False
 {- Runs an action without that pesky umask influencing it, unless the
  - passed FileMode is the standard one. -}
 noUmask :: FileMode -> IO a -> IO a
-#if 0
+#ifndef __WINDOWS__
 noUmask mode a
 	| mode == stdFileMode = a
 	| otherwise = bracket setup cleanup go
@@ -138,7 +138,7 @@ noUmask _ a = a
 #endif
 
 combineModes :: [FileMode] -> FileMode
-#if 0
+#ifndef __WINDOWS__
 combineModes [] = undefined
 combineModes [m] = m
 combineModes (m:ms) = foldl unionFileModes m ms
@@ -150,7 +150,7 @@ stickyMode :: FileMode
 stickyMode = 512
 
 isSticky :: FileMode -> Bool
-#if 0
+#ifndef __WINDOWS__
 isSticky = checkMode stickyMode
 #else
 isSticky _ = False
@@ -166,7 +166,7 @@ setSticky f = modifyFileMode f $ addModes [stickyMode]
  - as writeFile.
  -}
 writeFileProtected :: FilePath -> String -> IO ()
-#if 0
+#ifndef __WINDOWS__
 writeFileProtected file content = do
 	h <- openFile file WriteMode
 	void $ tryIO $

Utility/Gpg.hs

@@ -13,7 +13,7 @@ import System.Posix.Types
 import Control.Applicative
 import Control.Concurrent
 import Control.Exception (bracket)
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Env (setEnv, unsetEnv, getEnv)	
 #endif
 
@@ -216,7 +216,7 @@ keyBlock public ls = unlines
 		| public = "PUBLIC"
 		| otherwise = "PRIVATE"
 
-#if 0
+#ifndef mingw32_HOST_OS
 {- Runs an action using gpg in a test harness, in which gpg does
  - not use ~/.gpg/, but a directory with the test key set up to be used. -}
 testHarness :: IO a -> IO a

Utility/LogFile.hs

@@ -11,7 +11,7 @@ module Utility.LogFile where
 
 import Common
 
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix
 #endif
 

Utility/Misc.hs

@@ -15,7 +15,7 @@ import Foreign
 import Data.Char
 import Data.List
 import Control.Applicative
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Process (getAnyProcessStatus)
 #endif
 
@@ -122,7 +122,7 @@ hGetSomeString h sz = do
 	peekbytes :: Int -> Ptr Word8 -> IO [Word8]
 	peekbytes len buf = mapM (peekElemOff buf) [0..pred len]
 
-#if 0
+#ifndef mingw32_HOST_OS
 {- Reaps any zombie git processes. 
  -
  - Warning: Not thread safe. Anything that was expecting to wait

Utility/Process.hs

@@ -42,7 +42,7 @@ import Control.Concurrent
 import qualified Control.Exception as E
 import Control.Monad
 import Data.Maybe
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.IO
 #endif
 
@@ -158,7 +158,7 @@ createBackgroundProcess p a = a =<< createProcess p
  - returns a transcript combining its stdout and stderr, and
  - whether it succeeded or failed. -}
 processTranscript :: String -> [String] -> (Maybe String) -> IO (String, Bool)
-#if 0
+#ifndef mingw32_HOST_OS
 processTranscript cmd opts input = do
 	(readf, writef) <- createPipe
 	readh <- fdToHandle readf

Utility/TempFile.hs

@@ -11,7 +11,7 @@ module Utility.TempFile where
 
 import Control.Exception (bracket)
 import System.IO
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.Process
 #endif
 import System.Directory
@@ -24,7 +24,7 @@ import System.FilePath
  - then moving it into place. The temp file is stored in the same
  - directory as the final file to avoid cross-device renames. -}
 viaTmp :: (FilePath -> String -> IO ()) -> FilePath -> String -> IO ()
-#if 0
+#ifndef mingw32_HOST_OS
 viaTmp a file content = do
 	pid <- getProcessID
 	let tmpfile = file ++ ".tmp" ++ show pid
@@ -52,7 +52,7 @@ withTempFile template a = bracket create remove use
 {- Runs an action with a temp directory, then removes the directory and
  - all its contents. -}
 withTempDir :: Template -> (FilePath -> IO a) -> IO a
-#if 0
+#ifndef mingw32_HOST_OS
 withTempDir template = bracket create remove
   where
 	remove = removeDirectoryRecursive

Utility/UserInfo.hs

@@ -14,7 +14,7 @@ module Utility.UserInfo (
 ) where
 
 import Control.Applicative
-#if 0
+#ifndef mingw32_HOST_OS
 import System.Posix.User
 import System.Posix.Env
 #endif
@@ -23,7 +23,7 @@ import System.Posix.Env
  -
  - getpwent will fail on LDAP or NIS, so use HOME if set. -}
 myHomeDir :: IO FilePath
-#if 0
+#ifndef mingw32_HOST_OS
 myHomeDir = myVal ["HOME"] homeDirectory
 #else
 myHomeDir = error "myHomeDir TODO"
@@ -31,7 +31,7 @@ myHomeDir = error "myHomeDir TODO"
 
 {- Current user's user name. -}
 myUserName :: IO String
-#if 0
+#ifndef mingw32_HOST_OS
 myUserName = myVal ["USER", "LOGNAME"] userName
 #else
 myUserName = error "myUserName TODO"
@@ -41,14 +41,14 @@ myUserGecos :: IO String
 #ifdef __ANDROID__
 myUserGecos = return "" -- userGecos crashes on Android
 #else
-#if 0
+#ifndef mingw32_HOST_OS
 myUserGecos = myVal [] userGecos
 #else
 myUserGecos = error "myUserGecos TODO"
 #endif
 #endif
 
-#if 0
+#ifndef mingw32_HOST_OS
 myVal :: [String] -> (UserEntry -> String) -> IO String
 myVal envvars extract = maybe (extract <$> getpwent) return =<< check envvars
   where