-{-
-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.PackageDescription
-import Distribution.Setup
import Distribution.Simple
-import Distribution.Simple.LocalBuildInfo
-import Distribution.Simple.Utils
-import System.Cmd
-import System.FilePath
main :: IO ()
-main = do let hooks = defaultUserHooks {
- buildHook = build_primitive_sources
- $ filter_modules_hook
- $ buildHook defaultUserHooks,
- makefileHook = build_primitive_sources
- $ filter_modules_hook
- $ makefileHook defaultUserHooks,
- instHook = filter_modules_hook
- $ instHook defaultUserHooks }
- defaultMainWithHooks hooks
-
-type Hook a = PackageDescription -> LocalBuildInfo -> UserHooks -> a -> IO ()
-
-build_primitive_sources :: Hook a -> Hook a
-build_primitive_sources f pd lbi uhs x
- = do when (compilerFlavor (compiler lbi) == GHC) $ do
- let genprimopcode = joinPath ["..", "..", "utils",
- "genprimopcode", "genprimopcode"]
- primops = joinPath ["..", "..", "compiler", "prelude",
- "primops.txt"]
- primhs = joinPath ["GHC", "Prim.hs"]
- primopwrappers = joinPath ["GHC", "PrimopWrappers.hs"]
- maybeExit $ system (genprimopcode ++ " --make-haskell-source < "
- ++ primops ++ " > " ++ primhs)
- maybeExit $ system (genprimopcode ++ " --make-haskell-wrappers < "
- ++ primops ++ " > " ++ primopwrappers)
- f pd lbi uhs x
-
-filter_modules_hook :: Hook a -> Hook a
-filter_modules_hook f pd lbi uhs x
- = let lib' = case library pd of
- Just lib ->
- let ems = filter ("GHC.Prim" /=) (exposedModules lib)
- in lib { exposedModules = ems }
- Nothing -> error "Expected a library"
- pd' = pd { library = Just lib' }
- in f pd' lbi uhs x
-
+main = defaultMainWithHooks defaultUserHooks