X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fmain%2FSysTools.lhs;h=a4222a7577bc56f61b518027b679c883674369ba;hp=e58270d58252917de5d1f2321e74d56df31022ae;hb=17b297d97d327620ed6bfab942f8992b2446f1bf;hpb=9f589efb688f22cb0637f9c1164dd9027b4378a3

diff --git a/compiler/main/SysTools.lhs b/compiler/main/SysTools.lhs
index e58270d..a4222a7 100644
--- a/compiler/main/SysTools.lhs
+++ b/compiler/main/SysTools.lhs
@@ -7,6 +7,13 @@
 -----------------------------------------------------------------------------
 
 \begin{code}
+{-# OPTIONS_GHC -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+--     http://hackage.haskell.org/trac/ghc/wiki/WorkingConventions#Warnings
+-- for details
+
 module SysTools (
 	-- Initialisation
 	initSysTools,
@@ -17,11 +24,13 @@ module SysTools (
 	runMangle, runSplit,	 -- [Option] -> IO ()
 	runAs, runLink,		 -- [Option] -> IO ()
 	runMkDLL,
+        runWindres,
 
 	touch,			-- String -> String -> IO ()
 	copy,
         copyWithHeader,
 	normalisePath,          -- FilePath -> FilePath
+        getExtraViaCOpts,
 	
 	-- Temporary-file management
 	setTmpDir,
@@ -195,6 +204,10 @@ initSysTools mbMinusB dflags
 		| am_installed = installed_bin cGHC_MANGLER_PGM
 		| otherwise    = inplace cGHC_MANGLER_DIR_REL cGHC_MANGLER_PGM
 
+              windres_path
+		| am_installed = installed_bin "bin/windres"
+		| otherwise    = "windres"
+
 	; let dflags0 = defaultDynFlags
 #ifndef mingw32_HOST_OS
 	-- check whether TMPDIR is set in the environment
@@ -325,7 +338,8 @@ initSysTools mbMinusB dflags
 			pgm_l	= (ld_prog,ld_args),
 			pgm_dll = (mkdll_prog,mkdll_args),
                         pgm_T   = touch_path,
-                        pgm_sysman = top_dir ++ "/ghc/rts/parallel/SysMan"
+                        pgm_sysman = top_dir ++ "/ghc/rts/parallel/SysMan",
+                        pgm_windres = windres_path
         		-- Hans: this isn't right in general, but you can 
         		-- elaborate it in the same way as the others
                 }
@@ -517,6 +531,20 @@ runMkDLL dflags args = do
   mb_env <- getGccEnv (args0++args)
   runSomethingFiltered dflags id "Make DLL" p args1 mb_env
 
+runWindres :: DynFlags -> [Option] -> IO ()
+runWindres dflags args = do
+  let (gcc,gcc_args) = pgm_c dflags
+      windres        = pgm_windres dflags
+  mb_env <- getGccEnv gcc_args
+  runSomethingFiltered dflags id "Windres" windres 
+        -- we must tell windres where to find gcc: it might not be on PATH
+        (Option ("--preprocessor=" ++ gcc ++ " " ++
+                                      unwords (map showOpt gcc_args) ++
+                 " -E -xc -DRC_INVOKED")
+         : args)
+        -- we must use the PATH workaround here too, since windres invokes gcc
+        mb_env
+
 touch :: DynFlags -> String -> String -> IO ()
 touch dflags purpose arg =
   runSomething dflags purpose (pgm_T dflags) [FileOption "" arg]
@@ -536,6 +564,10 @@ copyWithHeader dflags purpose maybe_header from to = do
   hPutStr h ls
   hClose h
 
+getExtraViaCOpts :: DynFlags -> IO [String]
+getExtraViaCOpts dflags = do
+  f <- readFile (topDir dflags `joinFileName` "extra-gcc-opts")
+  return (words f)
 \end{code}
 
 %************************************************************************
@@ -579,7 +611,8 @@ newTempName dflags extn
   = do d <- getTempDir dflags
        x <- getProcessID
        findTempName (d ++ "/ghc" ++ show x ++ "_") 0
-  where 
+  where
+    findTempName :: FilePath -> Integer -> IO FilePath
     findTempName prefix x
       = do let filename = (prefix ++ show x) `joinFileExt` extn
   	   b  <- doesFileExist filename
@@ -596,6 +629,8 @@ getTempDir dflags@(DynFlags{tmpDir=tmp_dir})
            Nothing ->
                do x <- getProcessID
                   let prefix = tmp_dir ++ "/ghc" ++ show x ++ "_"
+                  let
+                      mkTempDir :: Integer -> IO FilePath
                       mkTempDir x
                        = let dirname = prefix ++ show x
                          in do createDirectory dirname
@@ -719,7 +754,11 @@ builderMainLoop dflags filter_fn pgm real_args mb_env = do
   hSetBuffering hStdErr LineBuffering
   forkIO (readerProc chan hStdOut filter_fn)
   forkIO (readerProc chan hStdErr filter_fn)
-  rc <- loop chan hProcess 2 1 ExitSuccess
+  -- we don't want to finish until 2 streams have been completed
+  -- (stdout and stderr)
+  -- nor until 1 exit code has been retrieved.
+  rc <- loop chan hProcess (2::Integer) (1::Integer) ExitSuccess
+  -- after that, we're done here.
   hClose hStdIn
   hClose hStdOut
   hClose hStdErr