{-# OPTIONS -fffi -cpp #-}
------------------------------------------------------------------------
--- $Id: Main.hs,v 1.63 2005/01/05 15:06:25 ross Exp $
+-- $Id: Main.hs,v 1.71 2005/01/29 12:15:33 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 defined(__GLASGOW_HASKELL__) && !defined(BUILD_NHC)
+#include "../../includes/ghcconfig.h"
+#endif
+
+#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
-#ifdef __GLASGOW_HASKELL__
+#if defined(__GLASGOW_HASKELL__) && !defined(BUILD_NHC)
import Compat.RawSystem ( rawSystem )
-#elif __HUGS__ || __NHC__ >= 117
+#elif __HUGS__ || __NHC__ >= 117 || __GLASGOW_HASKELL__ >= 600
import System.Cmd ( rawSystem )
#else
-rawSystem prog args = system (prog++unwords args)
+rawSystem prog args = system (prog++" "++unwords args)
#endif
version :: String
-- 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++
outFlagHeaderCProg :: Flag -> String
outFlagHeaderCProg (Template t) = "#include \""++t++"\"\n"
outFlagHeaderCProg (Include f) = "#include "++f++"\n"
-outFlagHeaderCProg (Define n Nothing) = "#define "++n++"\n"
+outFlagHeaderCProg (Define n Nothing) = "#define "++n++" 1\n"
outFlagHeaderCProg (Define n (Just v)) = "#define "++n++" "++v++"\n"
outFlagHeaderCProg _ = ""
"#endif\n"++
case inH of
Nothing -> concatMap outFlag flags++concatMap outSpecial toks
- Just f -> outOption ("-#include \""++f++"\"")
+ Just f -> outInclude ("\""++f++"\"")
where
- outFlag (Include f) = outOption ("-#include "++f)
+ outFlag (Include f) = outInclude f
outFlag (Define n Nothing) = outOption ("-optc-D"++n)
outFlag (Define n (Just v)) = outOption ("-optc-D"++n++"="++v)
outFlag _ = ""
outSpecial (pos, key, arg) = case key of
- "include" -> outOption ("-#include "++arg)
+ "include" -> outInclude arg
"define" | goodForOptD arg -> outOption ("-optc-D"++toOptD arg)
| otherwise -> ""
_ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n"
toOptD arg = case break isSpace arg of
(name, "") -> name
(name, _:value) -> name++'=':dropWhile isSpace value
- outOption s = " printf (\"{-# OPTIONS %s #-}\\n\", \""++
- showCString s++"\");\n"
+ outOption s =
+ "#if __GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 603\n" ++
+ " printf (\"{-# OPTIONS %s #-}\\n\", \""++
+ showCString s++"\");\n"++
+ "#else\n"++
+ " printf (\"{-# OPTIONS_GHC %s #-}\\n\", \""++
+ showCString s++"\");\n"++
+ "#endif\n"
+ outInclude s =
+ "#if __GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 603\n" ++
+ " printf (\"{-# OPTIONS -#include %s #-}\\n\", \""++
+ showCString s++"\");\n"++
+ "#else\n"++
+ " printf (\"{-# INCLUDE %s #-}\\n\", \""++
+ showCString s++"\");\n"++
+ "#endif\n"
outTokenHs :: Token -> String
outTokenHs (Text pos txt) =
outFlagH :: Flag -> String
outFlagH (Include f) = "#include "++f++"\n"
-outFlagH (Define n Nothing) = "#define "++n++"\n"
+outFlagH (Define n Nothing) = "#define "++n++" 1\n"
outFlagH (Define n (Just v)) = "#define "++n++" "++v++"\n"
outFlagH _ = ""
-- 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