move old ghc compat code into separate module; eliminate WITH_CLIBS

This avoids hsc2hs being run except when building for the old version of ghc.
Should speed up builds.

1 files changed, 0 insertions, 145 deletions

diff --git a/Utility/Touch.hsc b/Utility/Touch.hsc
deleted file mode 100644
index e1b1e887e..000000000
--- a/Utility/Touch.hsc
+++ /dev/null
@@ -1,145 +0,0 @@
-{- More control over touching a file.
- -
- - Copyright 2011 Joey Hess <id@joeyh.name>
- -
- - License: BSD-2-clause
- -}
-
-{-# LANGUAGE ForeignFunctionInterface, CPP #-}
-
-module Utility.Touch (
-	TimeSpec(..),
-	touchBoth,
-	touch
-) where
-
-#if MIN_VERSION_unix(2,7,0)
-
-import System.Posix.Files
-import System.Posix.Types
-
-newtype TimeSpec = TimeSpec EpochTime
-
-{- Changes the access and modification times of an existing file.
-   Can follow symlinks, or not. Throws IO error on failure. -}
-touchBoth :: FilePath -> TimeSpec -> TimeSpec -> Bool -> IO ()
-touchBoth file (TimeSpec atime) (TimeSpec mtime) follow
-	| follow = setFileTimes file atime mtime
-	| otherwise = setSymbolicLinkTimesHiRes file (realToFrac atime) (realToFrac mtime)
-
-touch :: FilePath -> TimeSpec -> Bool -> IO ()
-touch file mtime = touchBoth file mtime mtime
-
-#else
-{- Compatability interface for old version of unix, to be removed eventally. -}
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <sys/time.h>
-
-#ifndef _BSD_SOURCE
-#define _BSD_SOURCE
-#endif
-
-#if (defined UTIME_OMIT && defined UTIME_NOW && defined AT_FDCWD && defined AT_SYMLINK_NOFOLLOW)
-#define use_utimensat 1
-
-import Utility.FileSystemEncoding
-
-import Control.Monad (when)
-import Foreign
-#endif
-
-import Foreign.C
-
-newtype TimeSpec = TimeSpec CTime
-
-touchBoth :: FilePath -> TimeSpec -> TimeSpec -> Bool -> IO ()
-
-touch :: FilePath -> TimeSpec -> Bool -> IO ()
-touch file mtime = touchBoth file mtime mtime
-
-#ifdef use_utimensat
-
-at_fdcwd :: CInt
-at_fdcwd = #const AT_FDCWD
-
-at_symlink_nofollow :: CInt
-at_symlink_nofollow = #const AT_SYMLINK_NOFOLLOW
-
-instance Storable TimeSpec where
-	-- use the larger alignment of the two types in the struct
-	alignment _ = max sec_alignment nsec_alignment
-	  where
-		sec_alignment = alignment (1::CTime)
-		nsec_alignment = alignment (1::CLong)
-	sizeOf _ = #{size struct timespec}
-	peek ptr = do
-		sec <- #{peek struct timespec, tv_sec} ptr
-		return $ TimeSpec sec
-	poke ptr (TimeSpec sec) = do
-		#{poke struct timespec, tv_sec} ptr sec
-		#{poke struct timespec, tv_nsec} ptr (0 :: CLong)
-
-{- While its interface is beastly, utimensat is in recent
-   POSIX standards, unlike lutimes. -}
-foreign import ccall "utimensat" 
-	c_utimensat :: CInt -> CString -> Ptr TimeSpec -> CInt -> IO CInt
-
-touchBoth file atime mtime follow = 
-	allocaArray 2 $ \ptr ->
-	withFilePath file $ \f -> do
-		pokeArray ptr [atime, mtime]
-		r <- c_utimensat at_fdcwd f ptr flags
-		when (r /= 0) $ throwErrno "touchBoth"
-  where
-	flags
-       		| follow = 0
-		| otherwise = at_symlink_nofollow 
-
-#else
-#if 0
-{- Using lutimes is needed for BSD.
- - 
- - TODO: test if lutimes is available. May have to do it in configure.
- - TODO: TimeSpec uses a CTime, while tv_sec is a CLong. It is implementation
- - dependent whether these are the same; need to find a cast that works.
- - (Without the cast it works on linux i386, but
- - maybe not elsewhere.)
- -}
-
-instance Storable TimeSpec where
-	alignment _ = alignment (1::CLong)
-	sizeOf _ = #{size struct timeval}
-	peek ptr = do
-		sec <- #{peek struct timeval, tv_sec} ptr
-		return $ TimeSpec sec
-	poke ptr (TimeSpec sec) = do
-		#{poke struct timeval, tv_sec} ptr sec
-		#{poke struct timeval, tv_usec} ptr (0 :: CLong) 
-
-foreign import ccall "utimes" 
-	c_utimes :: CString -> Ptr TimeSpec -> IO CInt
-foreign import ccall "lutimes" 
-	c_lutimes :: CString -> Ptr TimeSpec -> IO CInt
-
-touchBoth file atime mtime follow = 
-	allocaArray 2 $ \ptr ->
-	withFilePath file $ \f -> do
-		pokeArray ptr [atime, mtime]
-		r <- syscall f ptr
-		when (r /= 0) $
-			throwErrno "touchBoth"
-  where
-	syscall
-       		| follow = c_lutimes
-		| otherwise = c_utimes
-
-#else
-#warning "utimensat and lutimes not available; building without symlink timestamp preservation support"
-touchBoth _ _ _ _ = return ()
-#endif
-#endif
-
-#endif