{-# OPTIONS -fffi -cpp #-}
------------------------------------------------------------------------
--- $Id: Main.hs,v 1.60 2004/08/13 13:11:21 simonmar Exp $
+-- $Id: Main.hs,v 1.67 2005/01/24 00:36:03 ross Exp $
--
-- Program for converting .hsc files to .hs files, by converting the
-- file into a C program which is run to generate the Haskell source.
--
-- See the documentation in the Users' Guide for more details.
-#if __GLASGOW_HASKELL__ >= 504 || __NHC__ >= 114
+#if __GLASGOW_HASKELL__ >= 504 || __NHC__ >= 114 || __HUGS__
import System.Console.GetOpt
#else
import GetOpt
import List (intersperse, isSuffixOf)
import IO (hPutStr, hPutStrLn, stderr)
-#if defined(mingw32_HOST_OS)
+#if defined(mingw32_HOST_OS) && !__HUGS__
import Foreign
#if __GLASGOW_HASKELL__ >= 504 || __NHC__ >= 114
import Foreign.C.String
#endif
+#if defined(__GLASGOW_HASKELL__) && !defined(BUILD_NHC)
+import Compat.RawSystem ( rawSystem )
+#elif __HUGS__ || __NHC__ >= 117 || __GLASGOW_HASKELL__ >= 600
+import System.Cmd ( rawSystem )
+#else
+rawSystem prog args = system (prog++" "++unwords args)
+#endif
+
version :: String
version = "hsc2hs version 0.66\n"
-- If there is no Template flag explicitly specified, try
-- to find one by looking near the executable. This only
- -- works on Win32 (getExecDir). On Unix, there's a wrapper
+ -- works on Win32 or Hugs (getExecDir). On Unix, there's a wrapper
-- script which specifies an explicit template flag.
flags_w_tpl <- if any template_flag flags then
return flags
else
+#ifdef __HUGS__
+ do mb_path <- getExecDir "/Main.hs"
+#else
do mb_path <- getExecDir "/bin/hsc2hs.exe"
+#endif
add_opt <-
case mb_path of
Nothing -> return id
fixChar c | isAlphaNum c = toUpper c
| otherwise = '_'
+#ifdef __HUGS__
+ compiler <- case [c | Compiler c <- flags] of
+ [] -> return "gcc"
+ [c] -> return c
+ _ -> onlyOne "compiler"
+
+ linker <- case [l | Linker l <- flags] of
+ [] -> return compiler
+ [l] -> return l
+ _ -> onlyOne "linker"
+#else
-- Try locating GHC..on Win32, look in the vicinity of hsc2hs.
-- Returns a native-format path
locateGhc def = do
[] -> locateGhc compiler
[l] -> return l
_ -> onlyOne "linker"
+#endif
writeFile cProgName $
concatMap outFlagHeaderCProg flags++
- compilerStatus <- systemL beVerbose $
- compiler++
- " -c"++
- concat [" "++f | CompFlag f <- flags]++
- " "++cProgName++
- " -o "++oProgName
+ compilerStatus <- rawSystemL beVerbose compiler
+ ( ["-c"]
+ ++ [f | CompFlag f <- flags]
+ ++ [cProgName]
+ ++ ["-o", oProgName]
+ )
+
case compilerStatus of
e@(ExitFailure _) -> exitWith e
_ -> return ()
removeFile cProgName
- linkerStatus <- systemL beVerbose $
- linker++
- concat [" "++f | LinkFlag f <- flags]++
- " "++oProgName++
- " -o "++progName
+ linkerStatus <- rawSystemL beVerbose linker
+ ( [f | LinkFlag f <- flags]
+ ++ [oProgName]
+ ++ ["-o", progName]
+ )
+
case linkerStatus of
e@(ExitFailure _) -> exitWith e
_ -> return ()
-- NB. outHFile not outHName; works better when processed
-- by gcc or mkdependC.
+rawSystemL :: Bool -> String -> [String] -> IO ExitCode
+rawSystemL flg prog args = do
+ when flg $ hPutStrLn stderr ("Executing: " ++ prog ++ concat (map (' ':) args))
+ rawSystem prog args
+
systemL :: Bool -> String -> IO ExitCode
systemL flg s = do
when flg (hPutStrLn stderr ("Executing: " ++ s))
-- Cut and pasted from ghc/compiler/SysTools
-- Convert paths foo/baz to foo\baz on Windows
-dosifyPath :: String -> String
+dosifyPath, unDosifyPath :: String -> String
#if defined(mingw32_HOST_OS)
dosifyPath xs = subst '/' '\\' xs
-
-unDosifyPath :: String -> String
unDosifyPath xs = subst '\\' '/' xs
subst :: Eq a => a -> a -> [a] -> [a]
subst a b ls = map (\ x -> if x == a then b else x) ls
+#else
+dosifyPath xs = xs
+unDosifyPath xs = xs
+#endif
getExecDir :: String -> IO (Maybe String)
-- (getExecDir cmd) returns the directory in which the current
-- executable, which should be called 'cmd', is running
-- So if the full path is /a/b/c/d/e, and you pass "d/e" as cmd,
-- you'll get "/a/b/c" back as the result
+#ifdef __HUGS__
+getExecDir cmd
+ = do
+ s <- getProgName
+ return (Just (reverse (drop (length cmd) (reverse (unDosifyPath s)))))
+#elif defined(mingw32_HOST_OS)
getExecDir cmd
= allocaArray len $ \buf -> do
ret <- getModuleFileName nullPtr buf len
getModuleFileName :: Ptr () -> CString -> Int -> IO Int32
#else
-dosifyPath xs = xs
-
-getExecDir :: String -> IO (Maybe String)
getExecDir _ = return Nothing
#endif