24 lines
1.4 KiB
Diff
24 lines
1.4 KiB
Diff
diff --git a/Mueval/Interpreter.hs b/Mueval/Interpreter.hs
|
|
index 29b771f..6360ee3 100644
|
|
--- a/Mueval/Interpreter.hs
|
|
+++ b/Mueval/Interpreter.hs
|
|
@@ -8,6 +8,7 @@ import Control.Monad.Writer (Any(..),runWriterT,tell)
|
|
import Data.Char (isDigit)
|
|
import Data.List (stripPrefix)
|
|
import System.Directory (copyFile, makeRelativeToCurrentDirectory, removeFile, setCurrentDirectory)
|
|
+import System.Environment (lookupEnv)
|
|
import System.Exit (exitFailure)
|
|
import System.FilePath.Posix (takeFileName)
|
|
import qualified Control.Exception.Extensible as E (evaluate,catch,SomeException(..))
|
|
@@ -47,6 +48,10 @@ interpreter Options { extensions = exts, namedExtensions = nexts,
|
|
-- Explicitly adding ImplicitPrelude because of
|
|
-- http://darcsden.com/jcpetruzza/hint/issue/1
|
|
unless (null lexts) $ set [languageExtensions := (UnknownExtension "ImplicitPrelude" : lexts)]
|
|
+ pkgs' <- liftIO $ lookupEnv "NIX_GHC_LIBDIR"
|
|
+ case pkgs' of
|
|
+ Just pkgs -> unsafeSetGhcOption ("-package-db " ++ pkgs ++ "/package.conf.d")
|
|
+ Nothing -> return ()
|
|
when trust $ do
|
|
unsafeSetGhcOption "-fpackage-trust"
|
|
forM_ (trustPkgs >>= words) $ \pkg ->
|