[project @ 2001-02-07 16:23:28 by simonmar]

wibble

diff --git a/ghc/compiler/compMan/CompManager.lhs b/ghc/compiler/compMan/CompManager.lhs
index f2a83dc..f734401 100644 (file)
--- a/ghc/compiler/compMan/CompManager.lhs
+++ b/ghc/compiler/compMan/CompManager.lhs
@@ -204,6 +204,7 @@ cmLoadModule cmstate1 rootname
        -- See getValidLinkables below for details.
        valid_linkables <- getValidLinkables ui1 mg2unsorted_names 
                                mg2_with_srcimps
+       pprTrace "valid_linkables" (ppr valid_linkables) $ do
 
         -- Figure out a stable set of modules which can be retained
         -- the top level envs, to avoid upsweeping them.  Goes to a
@@ -802,7 +803,7 @@ downsweep rootNm old_summaries
                let all_home = map (moduleName.ms_mod) home_summaries
 
                -- imports for modules we don't already have
-                let needed_imps = filter (`notElem` all_home) imps
+                let needed_imps = nub (filter (`notElem` all_home) imps)
 
                -- summarise them
                 needed_summaries <- mapM getSummary needed_imps