[project @ 1997-03-14 07:52:06 by simonpj]

[ghc-hetmet.git] / ghc / compiler / stranal / WwLib.lhs

diff --git a/ghc/compiler/stranal/WwLib.lhs b/ghc/compiler/stranal/WwLib.lhs
index 318a6d2..3f21e6d 100644 (file)
--- a/ghc/compiler/stranal/WwLib.lhs
+++ b/ghc/compiler/stranal/WwLib.lhs
@@ -326,7 +326,7 @@ mkWW ((arg,WwUnpack True cs) : ds)
                                     -- The main event: a single-constructor data type
                                     (arg_tycon, tycon_arg_tys, data_con)
 
-             Just (_, _, data_cons) ->  panic "mk_ww_arg_processing: not one constr"
+             Just (_, _, data_cons) ->  panic "mk_ww_arg_processing: not one constr (interface files not consistent/up to date ?)"
              Nothing                ->  panic "mk_ww_arg_processing: not datatype"