X-Git-Url: http://git.megacz.com/?p=ghc-base.git;a=blobdiff_plain;f=Setup.hs;h=7cf9bfd7caf9fa164c3f88420e5d42fcdfce7c83;hp=2afec6fc79ecb05b95eef8c7bc4b470501762542;hb=HEAD;hpb=d1b881def2479cea816f47031c8a27f37d046b3c diff --git a/Setup.hs b/Setup.hs index 2afec6f..7cf9bfd 100644 --- a/Setup.hs +++ b/Setup.hs @@ -1,59 +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.PackageDescription import Distribution.Simple -import Distribution.Simple.LocalBuildInfo -import Distribution.Simple.Utils -import System.Cmd -import System.FilePath -import System.Exit -import System.Directory -import Control.Exception (try) main :: IO () -main = do let hooks = defaultUserHooks { - buildHook = build_primitive_sources - $ buildHook defaultUserHooks, - makefileHook = build_primitive_sources - $ makefileHook defaultUserHooks, - haddockHook = build_primitive_sources - $ haddockHook 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"] - primhs_tmp = addExtension primhs "tmp" - primopwrappers_tmp = addExtension primopwrappers "tmp" - maybeExit $ system (genprimopcode ++ " --make-haskell-source < " - ++ primops ++ " > " ++ primhs_tmp) - maybeUpdateFile primhs_tmp primhs - maybeExit $ system (genprimopcode ++ " --make-haskell-wrappers < " - ++ primops ++ " > " ++ primopwrappers_tmp) - maybeUpdateFile primopwrappers_tmp primopwrappers - f pd lbi uhs x - --- Replace a file only if the new version is different from the old. --- This prevents make from doing unnecessary work after we run 'setup makefile' -maybeUpdateFile :: FilePath -> FilePath -> IO () -maybeUpdateFile source target = do - r <- rawSystem "cmp" ["-s" {-quiet-}, source, target] - case r of - ExitSuccess -> removeFile source - ExitFailure _ -> do try (removeFile target); renameFile source target - +main = defaultMainWithHooks defaultUserHooks