[project @ 2001-08-13 16:32:22 by simonmar]

Allow multiple -f/--config-file options, taking the last one.  This
allows ghc-pkg to be used to modify a user-specified package.conf file.

diff --git a/ghc/utils/ghc-pkg/Main.hs b/ghc/utils/ghc-pkg/Main.hs
index 7e76758..2a5f9a7 100644 (file)
--- a/ghc/utils/ghc-pkg/Main.hs
+++ b/ghc/utils/ghc-pkg/Main.hs
@@ -1,5 +1,5 @@
 -----------------------------------------------------------------------------
--- $Id: Main.hs,v 1.11 2001/07/11 11:01:59 rrt Exp $
+-- $Id: Main.hs,v 1.12 2001/08/13 16:32:22 simonmar Exp $
 --
 -- Package management tool
 -----------------------------------------------------------------------------
@@ -57,17 +57,16 @@ unDosifyPath xs = subst '\\' '/' xs
 #endif
 
 runit clis = do
-#ifndef mingw32_TARGET_OS
   conf_file <- 
      case [ f | Config f <- clis ] of
-        []  -> die "missing -f option, location of package.conf unknown"
-        [f] -> return f
-        _   -> die (usageInfo usageHeader flags)
+        fs@(_:_)  -> return (last fs)
+#ifndef mingw32_TARGET_OS
+       [] -> die "missing -f option, location of package.conf unknown"
 #else
-  h <- getModuleHandle Nothing
-  n <- getModuleFileName h
-  let conf_file = reverse (tail (dropWhile (not . isSlash) (reverse (unDosifyPath n))))
-                  ++ "/package.conf"
+       [] -> do h <- getModuleHandle Nothing
+                n <- getModuleFileName h
+                return (reverse (tail (dropWhile (not . isSlash) 
+                          (reverse (unDosifyPath n)))) ++ "/package.conf")
 #endif
 
   let toField "import_dirs"     = return import_dirs