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import Distribution.PackageDescription
import Distribution.Setup
import Distribution.Simple
import Distribution.Simple.Configure
import Distribution.Simple.LocalBuildInfo
import Distribution.Simple.Utils
import Distribution.Verbosity
import System.Cmd
import System.Environment
main :: IO ()
main = do args <- getArgs
case args of
pref : ghcpkg : args' ->
let verbosity = case args' of
[] -> normal
['-':'v':v] ->
let m = case v of
"" -> Nothing
_ -> Just v
in flagToVerbosity m
_ -> error ("Bad arguments: " ++ show args)
in doit pref ghcpkg verbosity
_ ->
error "Missing arguments"
doit :: FilePath -> FilePath -> Verbosity -> IO ()
doit pref ghcpkg verbosity =
do let userHooks = simpleUserHooks
copyFlags = CopyFlags {
copyDest = NoCopyDest,
copyVerbose = verbosity
}
registerFlags = RegisterFlags {
regUser = MaybeUserGlobal,
regGenScript = False,
regInPlace = False,
regWithHcPkg = Just ghcpkg,
regVerbose = verbosity
}
pdFile <- defaultPackageDesc verbosity
pd <- readPackageDescription verbosity pdFile
lbi <- getPersistBuildConfig
let -- XXX This is an almighty hack, shadowing the base Setup.hs hack
lib' = case library pd of
Just lib ->
lib {
exposedModules = filter (("GHC.Prim" /=))
$ exposedModules lib
}
Nothing ->
error "Expected a library, but none found"
pd' = pd { library = Just lib' }
-- When coying, we need to actually give a concrete
-- directory to copy to rather than "$topdir"
lbi_copy = lbi { prefix = pref }
-- When we run GHC we give it a $topdir that includes the
-- $compiler/lib/ part of libsubdir, so we only want the
-- $pkgid part in the package.conf file. This is a bit of
-- a hack, really.
lbi_register = lbi { libsubdir = "$pkgid" }
(copyHook simpleUserHooks) pd' lbi_copy userHooks copyFlags
(regHook simpleUserHooks) pd' lbi_register userHooks registerFlags
return ()
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