X-Git-Url: http://git.megacz.com/?p=haskell-directory.git;a=blobdiff_plain;f=Setup.hs;h=7cf9bfd7caf9fa164c3f88420e5d42fcdfce7c83;hp=eff285911017362ab6b3debc96a2ca0ff75efebd;hb=a58562a8d584e914c24bf3d13f129cfc0b82f29c;hpb=5e04a8fa83719d8cd9c9d710fd0dcc8bd24a91cd

diff --git a/Setup.hs b/Setup.hs
index eff2859..7cf9bfd 100644
--- a/Setup.hs
+++ b/Setup.hs
@@ -1,119 +1,6 @@
-
-{-
-We need to do some ugly hacks here as base mix of portable and
-unportable stuff, as well as home to some GHC magic.
--}
-
 module Main (main) where
 
-import Control.Monad
-import Data.List
 import Distribution.Simple
-import Distribution.PackageDescription
-import Distribution.PreProcess
-import Distribution.Setup
-import Distribution.Simple.Configure
-import Distribution.Simple.LocalBuildInfo
-import System.Environment
-import System.Exit
 
 main :: IO ()
-main = do args <- getArgs
-          let (ghcArgs, args') = extractGhcArgs args
-              (configureArgs, args'') = extractConfigureArgs args'
-              hooks = defaultUserHooks {
-                  confHook = add_extra_deps
-                           $ confHook defaultUserHooks,
-                  postConf = add_configure_options configureArgs
-                           $ postConf defaultUserHooks,
-                  buildHook = add_ghc_options ghcArgs
-                            $ filter_modules_hook
-                            $ buildHook defaultUserHooks,
-                  instHook = filter_modules_hook
-                           $ instHook defaultUserHooks }
-          withArgs args'' $ defaultMainWithHooks hooks
-
-extractGhcArgs :: [String] -> ([String], [String])
-extractGhcArgs = extractPrefixArgs "--ghc-option="
-
-extractConfigureArgs :: [String] -> ([String], [String])
-extractConfigureArgs = extractPrefixArgs "--configure-option="
-
-extractPrefixArgs :: String -> [String] -> ([String], [String])
-extractPrefixArgs prefix args
- = let f [] = ([], [])
-       f (x:xs) = case f xs of
-                      (wantedArgs, otherArgs) ->
-                          case removePrefix prefix x of
-                              Just wantedArg ->
-                                  (wantedArg:wantedArgs, otherArgs)
-                              Nothing ->
-                                  (wantedArgs, x:otherArgs)
-   in f args
-
-removePrefix :: String -> String -> Maybe String
-removePrefix "" ys = Just ys
-removePrefix _  "" = Nothing
-removePrefix (x:xs) (y:ys)
- | x == y = removePrefix xs ys
- | otherwise = Nothing
-
-type Hook a = PackageDescription -> LocalBuildInfo -> Maybe UserHooks -> a
-           -> IO ()
-type ConfHook = PackageDescription -> ConfigFlags -> IO LocalBuildInfo
-type PostConfHook = Args -> ConfigFlags -> PackageDescription -> LocalBuildInfo
-                 -> IO ExitCode
-
--- type PDHook = PackageDescription -> ConfigFlags -> IO ()
-
-add_ghc_options :: [String] -> Hook a -> Hook a
-add_ghc_options args f pd lbi muhs x
- = do let lib' = case library pd of
-                     Just lib ->
-                         let bi = libBuildInfo lib
-                             opts = options bi ++ [(GHC, args)]
-                             bi' = bi { options = opts }
-                         in lib { libBuildInfo = bi' }
-                     Nothing -> error "Expected a library"
-          pd' = pd { library = Just lib' }
-      f pd' lbi muhs x
-
-add_configure_options :: [String] -> PostConfHook -> PostConfHook
-add_configure_options args f as cfs pd lbi
- = f (as ++ args) cfs pd lbi
-
-filter_modules_hook :: Hook a -> Hook a
-filter_modules_hook f pd lbi muhs x
- = let build_filter = case compilerFlavor $ compiler lbi of
-                          GHC -> forGHCBuild
-                          _ -> isPortableBuild
-       lib' = case library pd of
-                  Just lib ->
-                      let ems = filter build_filter (exposedModules lib)
-                      in lib { exposedModules = ems }
-                  Nothing -> error "Expected a library"
-       pd' = pd { library = Just lib' }
-   in f pd' lbi muhs x
-
-isPortableBuild :: String -> Bool
-isPortableBuild s
- | "GHC" `isPrefixOf` s = False
- | "Data.Generics" `isPrefixOf` s = False
- | otherwise = s `notElem` ["Foreign.Concurrent", "System.Process"]
-
-forGHCBuild :: String -> Bool
-forGHCBuild = ("GHC.Prim" /=)
-
-add_extra_deps :: ConfHook -> ConfHook
-add_extra_deps f pd cf
- = do lbi <- f pd cf
-      case compilerFlavor (compiler lbi) of
-          GHC ->
-              do -- Euch. We should just add the right thing to the lbi
-                 -- ourselves rather than rerunning configure.
-                 let pd' = pd { buildDepends = Dependency "rts" AnyVersion
-                                             : buildDepends pd }
-                 f pd' cf
-          _ ->
-              return lbi
-
+main = defaultMainWithHooks defaultUserHooks