X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FSysTools.lhs;h=0908f2cc4555a2c05e62d530d65a4129f53de0f0;hb=11f81de1fa9ac05b9dd20b851076621d6f664c73;hp=15d5c88b77241b2b440eb1d48367d8fdc3c14884;hpb=e440a5e262dfa09fa02e4d69192948278e734387;p=ghc-hetmet.git
diff --git a/ghc/compiler/main/SysTools.lhs b/ghc/compiler/main/SysTools.lhs
index 15d5c88..0908f2c 100644
--- a/ghc/compiler/main/SysTools.lhs
+++ b/ghc/compiler/main/SysTools.lhs
@@ -1,6 +1,6 @@
-----------------------------------------------------------------------------
--
--- (c) The University of Glasgow 2001
+-- (c) The University of Glasgow 2001-2003
--
-- Access to system tools: gcc, cp, rm etc
--
@@ -19,6 +19,7 @@ module SysTools (
setPgms,
setPgma,
setPgml,
+ setPgmDLL,
#ifdef ILX
setPgmI,
setPgmi,
@@ -28,6 +29,7 @@ module SysTools (
getTopDir, -- IO String -- The value of $libdir
getPackageConfigPath, -- IO String -- Where package.conf is
+ getUsageMsgPaths, -- IO (String,String)
-- Interface to system tools
runUnlit, runCpp, runCc, -- [Option] -> IO ()
@@ -42,20 +44,18 @@ module SysTools (
touch, -- String -> String -> IO ()
copy, -- String -> String -> String -> IO ()
- unDosifyPath, -- String -> String
+ normalisePath, -- FilePath -> FilePath
-- Temporary-file management
setTmpDir,
newTempName,
- cleanTempFiles, cleanTempFilesExcept, removeTmpFiles,
+ cleanTempFiles, cleanTempFilesExcept,
addFilesToClean,
-- System interface
- getProcessID, -- IO Int
system, -- String -> IO ExitCode
-- Misc
- showGhcUsage, -- IO () Shows usage message and exits
getSysMan, -- IO String Parallel system only
Option(..)
@@ -65,10 +65,11 @@ module SysTools (
#include "HsVersions.h"
import DriverUtil
+import DriverPhases ( isHaskellUserSrcFilename )
import Config
import Outputable
-import Panic ( progName, GhcException(..) )
-import Util ( global, notNull )
+import Panic ( GhcException(..) )
+import Util ( global, notNull, toArgs )
import CmdLineOpts ( dynFlag, verbosity )
import EXCEPTION ( throwDyn )
@@ -76,23 +77,24 @@ import DATA_IOREF ( IORef, readIORef, writeIORef )
import DATA_INT
import Monad ( when, unless )
-import System ( ExitCode(..), exitWith, getEnv, system )
+import System ( ExitCode(..), getEnv, system )
import IO ( try, catch,
- openFile, hPutChar, hPutStrLn, hPutStr, hClose, hFlush, IOMode(..),
+ openFile, hPutStrLn, hPutStr, hClose, hFlush, IOMode(..),
stderr )
import Directory ( doesFileExist, removeFile )
+import List ( partition )
#include "../includes/config.h"
-- GHC <= 4.08 didn't have rawSystem, and runs into problems with long command
-- lines on mingw32, so we disallow it now.
-#if defined(mingw32_TARGET_OS) && (__GLASGOW_HASKELL__ <= 408)
-#error GHC <= 4.08 is not supported for bootstrapping GHC on i386-unknown-mingw32
+#if __GLASGOW_HASKELL__ < 500
+#error GHC >= 5.00 is required for bootstrapping GHC
#endif
-#ifndef mingw32_TARGET_OS
+#ifndef mingw32_HOST_OS
#if __GLASGOW_HASKELL__ > 504
-import qualified GHC.Posix
+import qualified System.Posix.Internals
#else
import qualified Posix
#endif
@@ -103,16 +105,11 @@ import Foreign
import CString ( CString, peekCString )
#endif
-#ifdef mingw32_TARGET_OS
-#if __GLASGOW_HASKELL__ > 504
-import System.Cmd ( rawSystem )
+#if __GLASGOW_HASKELL__ < 603
+import Foreign ( withMany, withArray0, nullPtr, Ptr )
+import CForeign ( CString, withCString, throwErrnoIfMinus1 )
#else
-import SystemExts ( rawSystem )
-#endif
-
-#else /* Not Win32 */
-
-import System ( system )
+import System.Cmd ( rawSystem )
#endif
\end{code}
@@ -190,7 +187,7 @@ All these pathnames are maintained IN THE NATIVE FORMAT OF THE HOST MACHINE.
\begin{code}
GLOBAL_VAR(v_Pgm_L, error "pgm_L", String) -- unlit
-GLOBAL_VAR(v_Pgm_P, error "pgm_P", String) -- cpp
+GLOBAL_VAR(v_Pgm_P, error "pgm_P", (String,[Option])) -- cpp
GLOBAL_VAR(v_Pgm_F, error "pgm_F", String) -- pp
GLOBAL_VAR(v_Pgm_c, error "pgm_c", String) -- gcc
GLOBAL_VAR(v_Pgm_m, error "pgm_m", String) -- asm code mangler
@@ -207,7 +204,7 @@ GLOBAL_VAR(v_Pgm_T, error "pgm_T", String) -- touch
GLOBAL_VAR(v_Pgm_CP, error "pgm_CP", String) -- cp
GLOBAL_VAR(v_Path_package_config, error "path_package_config", String)
-GLOBAL_VAR(v_Path_usage, error "ghc_usage.txt", String)
+GLOBAL_VAR(v_Path_usages, error "ghc_usage.txt", (String,String))
GLOBAL_VAR(v_TopDir, error "TopDir", String) -- -B
@@ -257,6 +254,10 @@ initSysTools minusB_args
| am_installed = installed "ghc-usage.txt"
| otherwise = inplace cGHC_DRIVER_DIR_REL "ghc-usage.txt"
+ ghci_usage_msg_path
+ | am_installed = installed "ghci-usage.txt"
+ | otherwise = inplace cGHC_DRIVER_DIR_REL "ghci-usage.txt"
+
-- For all systems, unlit, split, mangle are GHC utilities
-- architecture-specific stuff is done when building Config.hs
unlit_path
@@ -272,7 +273,7 @@ initSysTools minusB_args
| am_installed = installed_bin cGHC_MANGLER_PGM
| otherwise = inplace cGHC_MANGLER_DIR_REL cGHC_MANGLER_PGM
-#ifndef mingw32_TARGET_OS
+#ifndef mingw32_HOST_OS
-- check whether TMPDIR is set in the environment
; IO.try (do dir <- getEnv "TMPDIR" -- fails if not set
setTmpDir dir
@@ -282,30 +283,21 @@ initSysTools minusB_args
-- On Win32, consult GetTempPath() for a temp dir.
-- => it first tries TMP, TEMP, then finally the
-- Windows directory(!). The directory is in short-path
- -- form and *does* have a trailing backslash.
+ -- form.
; IO.try (do
let len = (2048::Int)
buf <- mallocArray len
ret <- getTempPath len buf
tdir <-
if ret == 0 then do
- -- failed, consult TEMP.
+ -- failed, consult TMPDIR.
free buf
- getEnv "TMP"
+ getEnv "TMPDIR"
else do
s <- peekCString buf
free buf
return s
- let
- -- strip the trailing backslash (awful, but
- -- we only do this once).
- tmpdir =
- case last tdir of
- '/' -> init tdir
- '\\' -> init tdir
- _ -> tdir
- setTmpDir tmpdir
- return ())
+ setTmpDir tdir)
#endif
-- Check that the package config exists
@@ -314,7 +306,7 @@ initSysTools minusB_args
throwDyn (InstallationError
("Can't find package.conf as " ++ pkgconfig_path))
-#if defined(mingw32_TARGET_OS)
+#if defined(mingw32_HOST_OS)
-- WINDOWS-SPECIFIC STUFF
-- On Windows, gcc and friends are distributed with GHC,
-- so when "installed" we look in TopDir/bin
@@ -374,7 +366,9 @@ initSysTools minusB_args
#endif
-- cpp is derived from gcc on all platforms
- ; let cpp_path = gcc_path ++ " -E " ++ cRAWCPP_FLAGS
+ -- HACK, see setPgmP below. We keep 'words' here to remember to fix
+ -- Config.hs one day.
+ ; let cpp_path = (gcc_path, (Option "-E"):(map Option (words cRAWCPP_FLAGS)))
-- For all systems, copy and remove are provided by the host
-- system; architecture-specific stuff is done when building Config.hs
@@ -392,7 +386,8 @@ initSysTools minusB_args
-- Initialise the global vars
; writeIORef v_Path_package_config pkgconfig_path
- ; writeIORef v_Path_usage ghc_usage_msg_path
+ ; writeIORef v_Path_usages (ghc_usage_msg_path,
+ ghci_usage_msg_path)
; writeIORef v_Pgm_sysman (top_dir ++ "/ghc/rts/parallel/SysMan")
-- Hans: this isn't right in general, but you can
@@ -417,7 +412,7 @@ initSysTools minusB_args
; return ()
}
-#if defined(mingw32_TARGET_OS)
+#if defined(mingw32_HOST_OS)
foreign import stdcall "GetTempPathA" unsafe getTempPath :: Int -> CString -> IO Int32
#endif
\end{code}
@@ -431,13 +426,16 @@ is used to override a particular program with a new one
\begin{code}
setPgmL = writeIORef v_Pgm_L
-setPgmP = writeIORef v_Pgm_P
+-- XXX HACK: Prelude> words "'does not' work" ===> ["'does","not'","work"]
+-- Config.hs should really use Option.
+setPgmP arg = let (pgm:args) = words arg in writeIORef v_Pgm_P (pgm,map Option args)
setPgmF = writeIORef v_Pgm_F
setPgmc = writeIORef v_Pgm_c
setPgmm = writeIORef v_Pgm_m
setPgms = writeIORef v_Pgm_s
setPgma = writeIORef v_Pgm_a
setPgml = writeIORef v_Pgm_l
+setPgmDLL = writeIORef v_Pgm_MkDLL
#ifdef ILX
setPgmI = writeIORef v_Pgm_I
setPgmi = writeIORef v_Pgm_i
@@ -478,11 +476,11 @@ findTopDir minusbs
; return (am_installed, top_dir)
}
where
- -- get_proto returns a Unix-format path (relying on getExecDir to do so too)
+ -- get_proto returns a Unix-format path (relying on getBaseDir to do so too)
get_proto | notNull minusbs
- = return (unDosifyPath (drop 2 (last minusbs))) -- 2 for "-B"
+ = return (normalisePath (drop 2 (last minusbs))) -- 2 for "-B"
| otherwise
- = do { maybe_exec_dir <- getExecDir -- Get directory of executable
+ = do { maybe_exec_dir <- getBaseDir -- Get directory of executable
; case maybe_exec_dir of -- (only works on Windows;
-- returns Nothing on Unix)
Nothing -> throwDyn (InstallationError "missing -B option")
@@ -511,11 +509,9 @@ data Option
String -- the filepath/filename portion
| Option String
-showOptions :: [Option] -> String
-showOptions ls = unwords (map (quote.showOpt) ls)
- where
- showOpt (FileOption pre f) = pre ++ dosifyPath f
- showOpt (Option s) = s
+showOpt (FileOption pre f) = pre ++ platformPath f
+showOpt (Option "") = ""
+showOpt (Option s) = s
\end{code}
@@ -533,8 +529,8 @@ runUnlit args = do p <- readIORef v_Pgm_L
runSomething "Literate pre-processor" p args
runCpp :: [Option] -> IO ()
-runCpp args = do p <- readIORef v_Pgm_P
- runSomething "C pre-processor" p args
+runCpp args = do (p,baseArgs) <- readIORef v_Pgm_P
+ runSomething "C pre-processor" p (baseArgs ++ args)
runPp :: [Option] -> IO ()
runPp args = do p <- readIORef v_Pgm_F
@@ -596,23 +592,10 @@ getSysMan :: IO String -- How to invoke the system manager
getSysMan = readIORef v_Pgm_sysman
\end{code}
-%************************************************************************
-%* *
-\subsection{GHC Usage message}
-%* *
-%************************************************************************
-
-Show the usage message and exit
-
\begin{code}
-showGhcUsage = do { usage_path <- readIORef v_Path_usage
- ; usage <- readFile usage_path
- ; dump usage
- ; exitWith ExitSuccess }
- where
- dump "" = return ()
- dump ('$':'$':s) = hPutStr stderr progName >> dump s
- dump (c:s) = hPutChar stderr c >> dump s
+getUsageMsgPaths :: IO (FilePath,FilePath)
+ -- the filenames of the usage messages (ghc, ghci)
+getUsageMsgPaths = readIORef v_Path_usages
\end{code}
@@ -629,18 +612,49 @@ GLOBAL_VAR(v_TmpDir, cDEFAULT_TMPDIR, String )
\end{code}
\begin{code}
-setTmpDir dir = writeIORef v_TmpDir dir
+setTmpDir dir = writeIORef v_TmpDir (canonicalise dir)
+ where
+#if !defined(mingw32_HOST_OS)
+ canonicalise p = normalisePath p
+#else
+ -- Canonicalisation of temp path under win32 is a bit more
+ -- involved: (a) strip trailing slash,
+ -- (b) normalise slashes
+ -- (c) just in case, if there is a prefix /cygdrive/x/, change to x:
+ --
+ canonicalise path = normalisePath (xltCygdrive (removeTrailingSlash path))
+
+ -- if we're operating under cygwin, and TMP/TEMP is of
+ -- the form "/cygdrive/drive/path", translate this to
+ -- "drive:/path" (as GHC isn't a cygwin app and doesn't
+ -- understand /cygdrive paths.)
+ xltCygdrive path
+ | "/cygdrive/" `isPrefixOf` path =
+ case drop (length "/cygdrive/") path of
+ drive:xs@('/':_) -> drive:':':xs
+ _ -> path
+ | otherwise = path
+
+ -- strip the trailing backslash (awful, but we only do this once).
+ removeTrailingSlash path =
+ case last path of
+ '/' -> init path
+ '\\' -> init path
+ _ -> path
+#endif
cleanTempFiles :: Int -> IO ()
-cleanTempFiles verb = do fs <- readIORef v_FilesToClean
- removeTmpFiles verb fs
+cleanTempFiles verb
+ = do fs <- readIORef v_FilesToClean
+ removeTmpFiles verb fs
+ writeIORef v_FilesToClean []
cleanTempFilesExcept :: Int -> [FilePath] -> IO ()
cleanTempFilesExcept verb dont_delete
- = do fs <- readIORef v_FilesToClean
- let leftovers = filter (`notElem` dont_delete) fs
- removeTmpFiles verb leftovers
- writeIORef v_FilesToClean dont_delete
+ = do files <- readIORef v_FilesToClean
+ let (to_keep, to_delete) = partition (`elem` dont_delete) files
+ removeTmpFiles verb to_delete
+ writeIORef v_FilesToClean to_keep
-- find a temporary name that doesn't already exist.
@@ -663,10 +677,25 @@ addFilesToClean files = mapM_ (add v_FilesToClean) files
removeTmpFiles :: Int -> [FilePath] -> IO ()
removeTmpFiles verb fs
- = traceCmd "Deleting temp files"
- ("Deleting: " ++ unwords fs)
- (mapM_ rm fs)
+ = warnNon $
+ traceCmd "Deleting temp files"
+ ("Deleting: " ++ unwords deletees)
+ (mapM_ rm deletees)
where
+ -- Flat out refuse to delete files that are likely to be source input
+ -- files (is there a worse bug than having a compiler delete your source
+ -- files?)
+ --
+ -- Deleting source files is a sign of a bug elsewhere, so prominently flag
+ -- the condition.
+ warnNon act
+ | null non_deletees = act
+ | otherwise = do
+ hPutStrLn stderr ("WARNING - NOT deleting source files: " ++ unwords non_deletees)
+ act
+
+ (non_deletees, deletees) = partition isHaskellUserSrcFilename fs
+
rm f = removeFile f `IO.catch`
(\_ignored ->
when (verb >= 2) $
@@ -698,22 +727,19 @@ runSomething :: String -- For -v message
-- runSomething will dos-ify them
-> IO ()
-runSomething phase_name pgm args
- = traceCmd phase_name cmd_line $
- do {
-#ifndef mingw32_TARGET_OS
- exit_code <- system cmd_line
-#else
- exit_code <- rawSystem cmd_line
-#endif
- ; if exit_code /= ExitSuccess
- then throwDyn (PhaseFailed phase_name exit_code)
- else return ()
- }
- where
- -- The pgm is already in native format (appropriate dir separators)
- cmd_line = pgm ++ ' ':showOptions args
- -- unwords (pgm : dosifyPaths (map quote args))
+runSomething phase_name pgm args = do
+ let real_args = filter notNull (map showOpt args)
+ -- Don't assume that 'pgm' contains the program path only,
+ -- but split it up and shift any arguments over to the arg vector.
+ let (real_pgm, argv) =
+ case toArgs pgm of
+ [] -> (pgm, real_args) -- let rawSystem be the bearer of bad news..
+ (x:xs) -> (x, xs ++ real_args)
+ traceCmd phase_name (unwords (pgm:real_args)) $ do
+ exit_code <- rawSystem real_pgm argv
+ if (exit_code /= ExitSuccess)
+ then throwDyn (PhaseFailed phase_name exit_code)
+ else return ()
traceCmd :: String -> String -> IO () -> IO ()
-- a) trace the command (at two levels of verbosity)
@@ -733,8 +759,73 @@ traceCmd phase_name cmd_line action
}}
where
handle_exn verb exn = do { when (verb >= 2) (hPutStr stderr "\n")
- ; when (verb >= 3) (hPutStrLn stderr ("Failed: " ++ cmd_line))
+ ; when (verb >= 3) (hPutStrLn stderr ("Failed: " ++ cmd_line ++ (show exn)))
; throwDyn (PhaseFailed phase_name (ExitFailure 1)) }
+
+-- -----------------------------------------------------------------------------
+-- rawSystem: run an external command
+--
+-- In GHC 6.2.1 there's a correct implementation of rawSystem in the
+-- library System.Cmd. If we are compiling with an earlier version of
+-- GHC than this, we'd better have a copy of the correct implementation
+-- right here.
+
+-- If you ever alter this code, you must alter
+-- libraries/base/System/Cmd.hs
+-- at the same time! There are also exensive comments in System.Cmd
+-- thare are not repeated here -- go look!
+
+
+#if __GLASGOW_HASKELL__ < 603
+
+rawSystem :: FilePath -> [String] -> IO ExitCode
+
+#ifndef mingw32_TARGET_OS
+
+rawSystem cmd args =
+ withCString cmd $ \pcmd ->
+ withMany withCString (cmd:args) $ \cstrs ->
+ withArray0 nullPtr cstrs $ \arr -> do
+ status <- throwErrnoIfMinus1 "rawSystem" (c_rawSystem pcmd arr)
+ case status of
+ 0 -> return ExitSuccess
+ n -> return (ExitFailure n)
+
+foreign import ccall "rawSystem" unsafe
+ c_rawSystem :: CString -> Ptr CString -> IO Int
+
+#else
+
+-- On Windows, the command line is passed to the operating system as
+-- a single string. Command-line parsing is done by the executable
+-- itself.
+rawSystem cmd args = do
+ -- NOTE: 'cmd' is assumed to contain the application to run _only_,
+ -- as it'll be quoted surrounded in quotes here.
+ let cmdline = translate cmd ++ concat (map ((' ':) . translate) args)
+ withCString cmdline $ \pcmdline -> do
+ status <- throwErrnoIfMinus1 "rawSystem" (c_rawSystem pcmdline)
+ case status of
+ 0 -> return ExitSuccess
+ n -> return (ExitFailure n)
+
+translate :: String -> String
+-- Returns a string wrapped in double-quotes
+-- If the input string starts with double-quote, don't touch it
+-- If not, wrap it in double-quotes and double any backslashes
+-- foo\baz --> "foo\\baz"
+-- "foo\baz" --> "foo\baz"
+
+translate str@('"':_) = str -- already escaped.
+translate str = '"' : foldr escape "\"" str
+ where escape '"' str = '\\' : '"' : str
+ escape c str = c : str
+
+foreign import ccall "rawSystem" unsafe
+ c_rawSystem :: CString -> IO Int
+
+#endif
+#endif
\end{code}
@@ -749,21 +840,16 @@ the last moment. On Windows we dos-ify them just before passing them
to the Windows command.
The alternative, of using '/' consistently on Unix and '\' on Windows,
-proved quite awkward. There were a lot more calls to dosifyPath,
+proved quite awkward. There were a lot more calls to platformPath,
and even on Windows we might invoke a unix-like utility (eg 'sh'), which
interpreted a command line 'foo\baz' as 'foobaz'.
\begin{code}
-----------------------------------------------------------------------------
--- Convert filepath into MSDOS form.
+-- Convert filepath into platform / MSDOS form.
-dosifyPaths :: [String] -> [String]
--- dosifyPaths does two things
--- a) change '/' to '\'
--- b) remove initial '/cygdrive/'
-
-unDosifyPath :: String -> String
--- Just change '\' to '/'
+normalisePath :: String -> String
+-- Just changes '\' to '/'
pgmPath :: String -- Directory string in Unix format
-> String -- Program name with no directory separators
@@ -772,37 +858,21 @@ pgmPath :: String -- Directory string in Unix format
-#if defined(mingw32_TARGET_OS)
-
+#if defined(mingw32_HOST_OS)
--------------------- Windows version ------------------
-dosifyPaths xs = map dosifyPath xs
-
-unDosifyPath xs = subst '\\' '/' xs
+normalisePath xs = subst '\\' '/' xs
+platformPath p = subst '/' '\\' p
+pgmPath dir pgm = platformPath dir ++ '\\' : pgm
-pgmPath dir pgm = dosifyPath dir ++ '\\' : pgm
-
-dosifyPath stuff
- = subst '/' '\\' real_stuff
- where
- -- fully convince myself that /cygdrive/ prefixes cannot
- -- really appear here.
- cygdrive_prefix = "/cygdrive/"
-
- real_stuff
- | cygdrive_prefix `isPrefixOf` stuff = dropList cygdrive_prefix stuff
- | otherwise = stuff
-
+subst a b ls = map (\ x -> if x == a then b else x) ls
#else
-
---------------------- Unix version ---------------------
-dosifyPaths ps = ps
-unDosifyPath xs = xs
-pgmPath dir pgm = dir ++ '/' : pgm
-dosifyPath stuff = stuff
+--------------------- Non-Windows version --------------
+normalisePath xs = xs
+pgmPath dir pgm = dir ++ '/' : pgm
+platformPath stuff = stuff
--------------------------------------------------------
#endif
-subst a b ls = map (\ x -> if x == a then b else x) ls
\end{code}
@@ -811,13 +881,6 @@ subst a b ls = map (\ x -> if x == a then b else x) ls
\begin{code}
slash :: String -> String -> String
-absPath, relPath :: [String] -> String
-
-relPath [] = ""
-relPath xs = foldr1 slash xs
-
-absPath xs = "" `slash` relPath xs
-
slash s1 s2 = s1 ++ ('/' : s2)
\end{code}
@@ -830,41 +893,36 @@ slash s1 s2 = s1 ++ ('/' : s2)
\begin{code}
-----------------------------------------------------------------------------
--- Define getExecDir :: IO (Maybe String)
+-- Define getBaseDir :: IO (Maybe String)
-#if defined(mingw32_TARGET_OS)
-getExecDir :: IO (Maybe String)
-getExecDir = do let len = (2048::Int) -- plenty, PATH_MAX is 512 under Win32.
+#if defined(mingw32_HOST_OS)
+getBaseDir :: IO (Maybe String)
+-- Assuming we are running ghc, accessed by path $()/bin/ghc.exe,
+-- return the path $(stuff). Note that we drop the "bin/" directory too.
+getBaseDir = do let len = (2048::Int) -- plenty, PATH_MAX is 512 under Win32.
buf <- mallocArray len
ret <- getModuleFileName nullPtr buf len
if ret == 0 then free buf >> return Nothing
else do s <- peekCString buf
free buf
- return (Just (reverse (dropList "/bin/ghc.exe" (reverse (unDosifyPath s)))))
-
+ return (Just (rootDir s))
+ where
+ rootDir s = reverse (dropList "/bin/ghc.exe" (reverse (normalisePath s)))
foreign import stdcall "GetModuleFileNameA" unsafe
getModuleFileName :: Ptr () -> CString -> Int -> IO Int32
#else
-getExecDir :: IO (Maybe String) = do return Nothing
+getBaseDir :: IO (Maybe String) = do return Nothing
#endif
-#ifdef mingw32_TARGET_OS
+#ifdef mingw32_HOST_OS
foreign import ccall "_getpid" unsafe getProcessID :: IO Int -- relies on Int == Int32 on Windows
#elif __GLASGOW_HASKELL__ > 504
getProcessID :: IO Int
-getProcessID = GHC.Posix.c_getpid >>= return . fromIntegral
+getProcessID = System.Posix.Internals.c_getpid >>= return . fromIntegral
#else
getProcessID :: IO Int
getProcessID = Posix.getProcessID
#endif
-quote :: String -> String
-#if defined(mingw32_TARGET_OS)
-quote "" = ""
-quote s = "\"" ++ s ++ "\""
-#else
-quote s = s
-#endif
-
\end{code}