X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FDriverFlags.hs;h=b2db529e5738600026b764e7ee3210ba2f447f19;hb=58eba7cdb39ad4a9ddd23eeaf2bb76a561aa813d;hp=701f2ba586e4b54269f5b366bdfc728c1fa87504;hpb=98688c6e8fd33f31c51218cf93cbf03fe3a5e73d;p=ghc-hetmet.git

diff --git a/ghc/compiler/main/DriverFlags.hs b/ghc/compiler/main/DriverFlags.hs
index 701f2ba..b2db529 100644
--- a/ghc/compiler/main/DriverFlags.hs
+++ b/ghc/compiler/main/DriverFlags.hs
@@ -1,9 +1,8 @@
 -----------------------------------------------------------------------------
--- $Id: DriverFlags.hs,v 1.127 2003/10/09 11:58:56 simonpj Exp $
 --
 -- Driver flags
 --
--- (c) Simon Marlow 2000
+-- (c) The University of Glasgow 2000-2003
 --
 -----------------------------------------------------------------------------
 
@@ -94,7 +93,7 @@ processOneArg action rest (dash_arg@('-':arg):args) =
 		if rest /= "" 
 			then fio rest >> return args
 			else case args of
-				[] -> unknownFlagErr dash_arg
+				[] -> missingArgErr dash_arg
 				(arg1:args1) -> fio arg1 >> return args1
 
 	SepArg fio -> 
@@ -280,13 +279,13 @@ static_flags =
         ------- Specific phases  --------------------------------------------
   ,  ( "pgmL"           , HasArg setPgmL )
   ,  ( "pgmP"           , HasArg setPgmP )
-  ,  ( "pgmP"           , HasArg setPgmP )
   ,  ( "pgmF"           , HasArg setPgmF )
   ,  ( "pgmc"           , HasArg setPgmc )
   ,  ( "pgmm"           , HasArg setPgmm )
   ,  ( "pgms"           , HasArg setPgms )
   ,  ( "pgma"           , HasArg setPgma )
   ,  ( "pgml"           , HasArg setPgml )
+  ,  ( "pgmdll"		, HasArg setPgmDLL )
 #ifdef ILX
   ,  ( "pgmI"           , HasArg setPgmI )
   ,  ( "pgmi"           , HasArg setPgmi )
@@ -651,7 +650,24 @@ setVerbosity n
 
 addCmdlineHCInclude a = updDynFlags (\s -> s{cmdlineHcIncludes =  a : cmdlineHcIncludes s})
 
+-- -----------------------------------------------------------------------------
+-- Version and usage messages
+
 showVersion :: IO ()
 showVersion = do
   putStrLn (cProjectName ++ ", version " ++ cProjectVersion)
   exitWith ExitSuccess
+
+showGhcUsage = do 
+  (ghc_usage_path,ghci_usage_path) <- getUsageMsgPaths
+  mode <- readIORef v_GhcMode
+  let usage_path 
+	| mode == DoInteractive  = ghci_usage_path
+	| otherwise		 = ghc_usage_path
+  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