Major patch to fix reporting of unused imports

[ghc-hetmet.git] / compiler / main / GHC.hs

diff --git a/compiler/main/GHC.hs b/compiler/main/GHC.hs
index c5571cb..8cf1666 100644 (file)
--- a/compiler/main/GHC.hs
+++ b/compiler/main/GHC.hs
@@ -265,10 +265,10 @@ import Var
 import TysPrim         ( alphaTyVars )
 import TyCon
 import Class
-import FunDeps
+-- import FunDeps
 import DataCon
 import Name             hiding ( varName )
-import OccName         ( parenSymOcc )
+-- import OccName              ( parenSymOcc )
 import InstEnv         ( Instance, instanceDFunId, pprInstance, pprInstanceHdr,
                           emptyInstEnv )
 import FamInstEnv       ( emptyFamInstEnv )
@@ -276,7 +276,7 @@ import SrcLoc
 --import CoreSyn
 import TidyPgm
 import DriverPipeline
-import DriverPhases    ( HscSource(..), Phase(..), isHaskellSrcFilename, startPhase )
+import DriverPhases    ( Phase(..), isHaskellSrcFilename, startPhase )
 import HeaderInfo
 import Finder
 import HscMain
@@ -784,7 +784,7 @@ load2 how_much mod_graph = do
                                (flattenSCCs mg2_with_srcimps)
                                stable_mods
 
-       liftIO $ evaluate pruned_hpt
+       _ <- liftIO $ evaluate pruned_hpt
 
         -- before we unload anything, make sure we don't leave an old
         -- interactive context around pointing to dead bindings.  Also,
@@ -888,7 +888,7 @@ load2 how_much mod_graph = do
              let 
                main_mod = mainModIs dflags
                a_root_is_Main = any ((==main_mod).ms_mod) mod_graph
-               do_linking = a_root_is_Main || no_hs_main
+               do_linking = a_root_is_Main || no_hs_main || ghcLink dflags == LinkDynLib
 
              when (ghcLink dflags == LinkBinary 
                     && isJust ofile && not do_linking) $
@@ -1208,7 +1208,7 @@ compileCoreToObj simplify cm@(CoreModule{ cm_module = mName }) = do
   (iface, changed, _details, cgguts)
       <- hscNormalIface guts Nothing
   hscWriteIface iface changed modSummary
-  hscGenHardCode cgguts modSummary
+  _ <- hscGenHardCode cgguts modSummary
   return ()
 
 -- Makes a "vanilla" ModGuts.
@@ -1242,7 +1242,7 @@ compileCore simplify fn = do
    -- First, set the target to the desired filename
    target <- guessTarget fn Nothing
    addTarget target
-   load LoadAllTargets
+   _ <- load LoadAllTargets
    -- Then find dependencies
    modGraph <- depanal [] True
    case find ((== fn) . msHsFilePath) modGraph of